ML20199K736
| ML20199K736 | |
| Person / Time | |
|---|---|
| Site: | LaSalle  |
| Issue date: | 11/21/1997 |
| From: | Basek J, Shah V COMMONWEALTH EDISON CO. |
| To: | |
| Shared Package | |
| ML20199K523 | List: |
| References | |
| CON-10244-013, CON-10244-13 L-001443, L-001443-R00, L-1443, L-1443-R, NUDOCS 9712010193 | |
| Download: ML20199K736 (67) | |
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ATTACHMENT J CALCULATION NO. L-001443, Rev. 0, Dated November 21,1997 O REACTOR WATER CLEANUP HIGH FLOW ISOLATION ERROR ANALYSIS 4
t 4
4 9712010193 971124 PDR P ADOCK 05000373:
PDR __
l Exhibit C
! NEP 12-02 R:visi n 5 l 3 CALCULATION TITLE PAGE i
Calculation No. L-001443 DESCRIPTION CODE: 103 (setnoint/settinas/Marain) 1 LaSalle DISCIPLINE CODE:
SYSTEM CODE:
Reactor Water Cleanuo Hioh Flow Isolation Error Analysis I finstrumentation a contron G33 I TITLE: .
. X . Safety Related Augmented Quality Non-Safety Related REFERENCE NUMBERS Type Number Type Number COMPONENT EPN : DOCUMENT NUMBERS:
EPN Compt Type Doc Type /Sub Type Document Number 1-G33-N504 Venturi Flow Nozzle 1-G33-N041 A.B AP Transmitter 1-G33-N609AJL Trio Unit REMARKS:
REVISING APPROVED DATE IREV.
NO. ORGANIZATION PRINT / SIGN l 0 Comed /E n se a m n o/ / A w f ./ ' i <//u /r p I
J I
I
Exhibit C NEP-12-02 R2visisn 5 COMMONWEALTH EDISON COMPANY ,
(; CALCULATION REVISION PAGE CALCULATION NO. L-001443 PAGE NO.: 2 of 53 -
REVISION SUhlh1 ARIES I
REV: 0 l REVISION
SUMMARY
Initial Issue ELECTRONIC CALCULATION DATA FILES REVISED: -
(Program Name, Version, File name ext / size /date/ hours min) lll26/99' PREPARED BY: VIKRAM R. SHAH DATE:11 O C '"I*
M Print /Sig # 37 REVIEWED BY: Joe Basak .
I DATE: # 1'7 Print / Sign / /
Type of Review a Detailed O Alternate o Test DO ANY ASSUMPTIONS IN THIS CALCULATION REQUIRE LATER VERIFICATION 3 YES O NO Tracked by: ...
REV:
REVISION
SUMMARY
ELECTRONIC CALCULATION DATA FILES REVISED:
(Program Name, Version, File name ext / size /date/ hours min)
PREPARED BY: DATE:
Print / Sign REVIEWED BY: DATE:
Print / Sign Type of Review e Detailed O Alternate O Test DO ANY ASSUMPTIONS IN THIS CALCULATION REQUIRE LATER VERIFICATION 0 YES 3 NO
( Tracked by:
Exhl2it D NEP.12-02 R:visi:n 5 COMMONWEALTH EDISON COMPANY O CALCULATION TABLE OF CONTENTS CALCULATION NO. L-001443 REV. NO. O PAGE NO. 3OF53 DESCRIPTION PAGE NO. SUB-PAGE NO.
TITLE PAGE 1 REVISION
SUMMARY
2 TABLE OF CONTENTS
- 3 CALCULATION SECTION 1,0 PURPOSE and OBJECTIVE 5 SECTION 2.0 METHODOLOGY and ACCEPTANCE 6 CRITERIA SECTION
3.0 REFERENCES
7 SECTION 4.0 DESIGN INPUTS 9 SECTION 5.0 ASSUMPTIONS 10 SECTION 6.0 INSTRUMENT CHANNEL 11 CONFIGURATION ECTION 7.0 PROCESS PARAMETERS 11 SECTION 8.0 CF ELEMENT DATA 12 SECTION 9.0 CALIBRATION INSTRUMENT DATA 16 SECTION 10.0 CALIBRATION PROCEDURE DATA 22 SECTION 11.0 MODULE ERRORS 23 SECTION 12.0 INSTRUMENT CHANNEL TOTAL 51 ERROR SECTION 13.0 ERROR ANALYSIS 52 SECTION 14.0 2RROR ANALYSIS
SUMMARY
& 53 CONCLUSIONS l k-
Exh*2 h D NEP-1242 R; vision S
- COMMONWEALTH EDISON COMPANY 3
Q CALCULATION TABLE OF CONTENTS (continued)
CALCULATION NO. L-001443 REV. NO. O PAGE NO. 4 OF 53 DESCRIPTION PAGE NO. SUB-PAGE NO.
ATTACHMENTS A Telecon between V. Shah of A-1 Signals & Safeguards, Inc. and .
B. Bejlovec of CECO, regarding maintenance of Rosemount transmitter static pressure correction at LaSalle County Station, dated 9-9-94.
B Correspondence from T.J. B-1 thru B-5 Layer, Rosemount App. Eng., to E. Kaczmarski, CECO, regarding
" Pressure Transmitter Perfor-mance Specifications", dated 6/24/91.
C Telecon between N. Archambo of C-1 thru C-2
{ }
Bechtel and T. Layer of Rosemount, clarifying the accuracy specifications for the Rosemount 710DU Trip / Calibration System, dated 6-16-93.
D Letter from T. Layer of D-1 thru D-2 Rosemount, Inc. to V. Shah of Signals & Safeguards, Inc.,
clarifying specifications for Model 510DU/710DU Trip Unit and Model 1154 Series H Transmitter, dated 9/30/93.
E Sargent & Lundy Design E-1 thru E-2 Information Transmittal LAS-FNDIT-0536, Upgrade 0, dated 11/10/97, regarding, "Setpoint With New Flow Transmitter and Trip Unit in RWCU Recirc Line "
k l
Exh7;it E NEP.12-02 R; vision 5 -
COMMONWEALTH EDISON COMPANY CALCULATION NO. L-001443 PAGE 5 of 53 1.0 PURPOSE / OBJECTIVE OF CALCULATION The purpose of this calculation is to deterinine the Ins;" ament setpoint and Allowable Value, for the instrument loops that initiate an inboard and outboard logic channel trip upon detection of high flow.
This calculation is performed to support DCP 9700532, which adds high flow break detection instrumentation into RWCU isolation logic. This logic will detect high energy line break.
The calculation evaluates normal operating and accident environ-mental conditions for the following instruments:
1-G33-N504 1-G33-N041A,B 1-G33-N609A,B l I I l REVISION NO. 0
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Exh2hE NEP 1242 R: vision $
COMMONWEALTH EDISON COMPANY LCULATION NO. L-001443 PAGE 6 of 53 2.0 METHODOLOGY AND ACCEPTANCE CRITERIA 2.1 Methodology The methodology used for this calculation is presented in the NES-EIC-20.04, " Analysis Of Instrument Channel Setpoint Error And Instrument Loop Accuracy", Rev. 0 (References 3.2).
2.2 Acceptance Criteria The acceptance criteria for this calculation is based on the Reference 3.2 as follows:
(1) New determined setpoint provides 95/95 assurances that the Analytical Limit will not be violated, (2) New determined setpoint provides reasonable assurance that spurious actuation will not occur during normal operation.
I I i l i
REVISION NO. 0 l
Exh NE NEP 1242 R: vision 5 COMMONWEALTH EDISON COMPANY CALCULATION NO. L-001443 PAGE 7 of 53 ,
REFERENCES 3.1 ISA-S67.04, Part 1, "Setpoints for Nuclear Safety Related Inscruments", Approved August 24, 1995 ISA-RP67.04-Part II-1994, " Methodologies for the Determination of Setpoints for Nuclear Safety Related Instrumentation", Approved September 30, 1994 .
3.2 NES-EIC-20.04, " Analysis of Instrument Channel Setpoint Error And Instrument Loop Accuracy."
3.3 LaSalle Station UFSAR, Rev 6, EQ Zone Maps, Table 3.11-7, 8, 16, 17, dated April 1990.
3.4 LaSalle Station Procedures LIS-RT-106A (Rev. 0), " Unit 1 Reactor Water Cleanup High Inlet Differential Flow Division 1 Isolation Calibration".
LIS-RT-106B (Rev. 0), " Unit 1 Reactor Water Cleanup High Inlet Differential Flow Division 2 Isolation Calibration".
l I 3.5 'asemount Operational Manual 4471-1, Rev. A, "Model 710DU Trip / Calibration System", VETIP J-0756 Rosemount Product Data Sheet 2471, Model 710DU Trip / Calibration System, Rev. 4/87.
3.6 Rosemount Instruction Manual 4631, March 1996, "Model 1154 Series H Alphaline Pressure Transmitters for Nuclear Service", VETIP J-0223 3.7 Pipe Fitters Manual - Tube Turns, Weldings, Fittings, and Piping Components, 1981 3.8 Commonwealth Edison Company Calculation No. NED-I-EIC-0255,
" Measurement & Test Equipment Accuracy Calculation For Use with CECO BWRs", Rev. O, CHRON # 208597.
3.9 Commonwealth Edison Company Instrument Database (EWCS) for the following instruments:
1G33-N504 i I REVISION NO. O
l Exh'J;h E NEP 1242 R:, vision 5 COMMONWEALTH EDISON COMPANY l
l CALCULATION NO. L-001443 PAGE 8 of 53 ,
3.10 Sargent & Lundy P&ID/C&I drawings will' revise per ECNs 0013683 (ESSI) and 001369E (F?S2)
Drwa # Sht# Revision Dated M-2097 2 G 01/15/86 3.11 ANSI /AMSE PTC 6 Report, " Guidance for. Measurement Uncertainty in Performance Tests of Steam Turbines", Tables 4.10, 4.11, Figures 4.5, 4.6, 4.7, 4.8 and 4.9, dated 1935, 3.12 Sargent & Lundy single 116e piping drawings depicting "as-t;jlt" field arrangements Drwa # Shtf Revision Dated M-840 8 X 07/09/S6 3.15 Vendor Drawing 73927-1, -21, Rev. 1. J2961 Specification.
3.16 ASME Steam Tables, 6* 3dicion, dated 1997
{ } 3.17 Instrument Engineers Handbook, Process Measurement and Analysis by Bela G. Liptak, Third edison.3 3.18 Sargent & Lundy Report SL-4493, " Final Report on Insulation Resistance and Its Presumed Effects on Circuit Accuracy LaSalle County Station", dated October 12, 1988.
3.19 Sargent & Lundy Calculation CID-MISC-01, " Instrument Loop Evaluation for Parasitic Resistance", Rev. O, da.ted 2/3/87, i
l I REVISION NO. 0 l
Exhibh E NEP.1242 R; vision S COMMONWEALTH EDISON COMPANY l W CALCULATION NO. L-001443 PAGE 9 of 53 ,
4.0 DESIGN INPUTS 4.1 Telecon between V. Shah of Signals & Safeguards, Inc. and B.
Bejlovec of CECO, regarding maintenance of Rosemount transmitter static pressure correction at LaSalle County Station, dated 9 94. (ATTACHMENT A) 4.2 Correspondence from T.J. Layer, Rosemount App. Eng., to E.
Kaczmarski, CECO, regarding " Pressure Transmitter Performance Specifications", dated 6/24/91. (ATTACHMENT B) 4.3 Telecon between N. Archambo of Bechtel and T. Layer of Rosemount, clarifying the accuracy specifications for the Rncetounc 710DU Trip / Calibration System, dated 6-16-93.
(ATTACHMENT C) 4.4 Letter from T. Layer of Rosemount, Inc. to V. Shah of Signals &
Safeguards, Inc., clarifyirg specifications for Model 510DU/710DU Trip Unit and Model 1154 Series H Transmitter, dated 9/30/93.
(ATTACHMENT D) 4.5 Sargent & Lundy Design Information Transmittal LAS-ENDIT-0536, p Upgrade 0, dated 11/10/97, regarding, "Setpoint With New Flow Transmitter and Trip Unit in RWCU Recirc Line." (ATTACHMENT E)
This Design Input provides following information:
Analytical Limit = 600 GPM Process Calibration Range = 0 to 700" GPM corresponding to O to 200" W.C.
Calibration Range = 18 months (Every Refuling Outage)
Inaddition, it also provides Manufacturer, Model no, EQ Zone,and instrument Location.
Il i REVISION NO. O
Exhth E
. NEP.1242 R: vision 5 COMMONWEALTH EDISON COMPANY CALCULATION NO. L-001443 PAGE 10 of 53 ,
5.0 ASSUMPTIONS 5.1 Published instrument and M&TE vendor specifications are considered to be 2 sigma values unless specific information is available to indicate otherwise.
5.2 Humidity, power supply and ambient pressure errors have been incorporated when provided by the manufaccarer. Otherwise, these errors are assumed to be included within the manufacturer's reference accuracy specification.
5.3 In accordance with Reference 3.b, it is assumed that the M&TE listed in Section 9.0 is calibrated to the required manufacturer's recommendations and within the manufacturer's required environmental conditions.
5.4 Comed LaSalle Tecianical Surveillance Procedure LTS-1000-44,
" General Area Reactor building Temperature Survaillance."- data collection f rom 03/88 thru 12/89. Based on the data *.eviewed f rom LTS-1000-44, the Minimum normal temperature in the reactor building will be assumed to be 60'F.
{ ) 5.5 Per Reference 3.2, r; additional flow uncertainty of 0.5% span will be used to account for codelling and process uncertainty (i.e. Pressure & temperature Spikes, Pressure loss, and head loss) of the flow nozzle.
5.6 As stated in Note 1 of AMSI/ASME PTC 6 Report - 1985, the overall uncertainty value of the flow element is acceptable for flow elements in service for less than six months. Further, Section 4.17 of this report states that the base uncertainty for flow elements in service for more than six months is likely to change much less with time than indicated for the initial six months.
It is therefore assumed that any additional error due to damage or deposits on the flow element will have a negligible impact on the overall loop uncertainty. Since the flow element has been in service greater than six months, for conservatism, the largest Group 2 base uncertainty from Table 4.10 will be used to evaluate the overall flow element error for flow no: le.
Assumptions 5.1 thru 5.6 do not require verification. These assumptions are based on the industry practice and engineering judgement.
5.7 The instrument department will develop a instrument surveillance procedure to account for high line static pressure effect. The procedure should use setting tolerance based on this calculation.
l l Assumption 5.7 is an unverified assumpt{>on.
REVISION NO. 0 l
Exh2hE NEP.1242 R; vision s ,
COMMONWEALTH EDISON COMPANY l l
CALCULATION NO. L-001443 PAGE 11 of 53 ,
6.0 INSTRUMENT CHANNEL CONFIGURATION Per Reference 3.10, the Instrument Loops each consist of a flow element, differential pressure transmitter, and master trip unit.
The Instrument Loop initiates RWC0 isolation when RWCU inlet flow and the corresponding differential pressure increases to the calibrated setpoint. .
7.0 PROCESS PARAMETERS From References 3.9, For 1G33-N504 (RWCU Inlet Flow)
Fluid: Water Maximum Process Fressure: 1025 PSIG Maximum Process Temperaturc 550'F
{ } Normal Process Pressure: 1005 PSIG Minimum Process Temperature: 533*F l l l
f REVISION NO. O s
Exhibh E NEP+1242 R; vision 5 COMMONWEALTH EDISON COMPANY
'[ CA7y11LATION NO. I.-001443 PAGE 12 of 53 8.0 LOOP ELEMENT DATA B.1 Module 1, Venturi Flow Nozzle 1G33-N504 (RWCU System Inlet Flow) (Reference 3.9, and 3.15)
Manufacturer: BIF
~
Normal Flow 352 GPM DP @ Design Flow: 101.62" W.C. @ 500 GPM (This does not include the zero pressure static shift compensation)
Design Temperature: 575'F Design Pressure: 1250 PSIG Pipe Size / Schedule: 6" Diameter, 120 Titroat Diameter (d) : 2.438 inches Pipe Diameter (D) : 4.876 inches (Reference 3.7)
Beta Ratio (d/D) : 0.50 Per Reference 3.12, The only upstream and downstream obstructians are single 90*
{ } bends. Upstream and downstream straight pape lengths are as fol-
~
lows.
, Upstream pipe length = 82.375 inches Downstream pipe length = 42.0 inches REVISION NO. O
Exh2hE NEP-1242 R: vision 5 COMMONWEALTH EDISON COMPANY CALCOLATION NO. L-001443 PAGE '13 of 53 .
8.2 Module 2, Rosemount Model 1154DH5R Differenti-1 Pressure i i
Transmitter (Reference 3.15) 1G33-N041A, B From Reference 3.6, Upper Range Limit (URL) 0-750" F.C.
Accuracy (30) 20.25% calibrated span (Includes effects of Linearity, Hysteresis, and Repeability)
Temperature Effect [30) 2(0.75% URL + 0.50% span)/100'F between 40*F and 200*F (Design input 4.4)
Static Pressure Effect Zero (3c] $0.2% URL/1000 psi Span (3c] 20.5% reading /1000 psi Overpressure Limits (20) 21% URL (Zero shift after 2000 PSI) l l l Power Supply Effect <0.005% output span per volt Drift (20) 20.2% URL for 30 months Radiation Effect (2c] 2 (0.5% URL + 1% span) after 55 Mreds TID 2 (0.75% URL + 1% span) Efter 110 Mreds TID gamma radiation exposure.
l Seismic Effect (2c) 20.5% URL with Horizontal ZPA of 8.5g's, and Vertical ZPA of 5.2g's l I l REVISION NO. O
Exhibit E NEP-12-02 R;vi:lon 5 COMMONWEALTH EDISON COMPANY CALCULATION NO. L-001443 PAGE 14 of 53 ,
Environmental Data for Transmitter Location Transmitter Locations, Reactor Building (Design Input 4.5):
Switch Tact Numbers Panel Number EO Zone 1G33-N041A ' 1H22-P010 H4A 1G33-N041B Locally mounted H4A Normal Operating Conditions for Environmental Zone H4A (Reference 3.3, Assumption 5.4)
Temperature: 60*F-118'F Pressure: -0.4" W.G.
Radiation: 2 x 10 6Rads (40-Year Dose)
Relative Humidity: 25 - 35%
Accident Conditions for Environmental Zone H4A (Reference 3.3, Assumption 5.4) l I Temperature: 60*F-145'F Pressure: -0.25" h.G.
Radiation: 1 x 10 7Rads (40-Year Dose)
Relative Humidity: 20 - 95%
l I REVISION NO. O
Exhibh E NEP 1242 i R: vision 5 l COMMONWEALTH EDISON COMPANY l l
{ h_- !
CALCULATION NO. L-001443 PAGE 15 of 53 ,
Module 3 Rosemount Model 710D0 - MTU (Reference 3.15) 1G33-N609A,B From References 3.5, Design Inputs 4.2, 4.3, and 4.4 N
Repeatability (.ormal) 2 0.13 % (SPAN) (60*F to 90*F) for 6 months 2 0.20% (SPAN) /100*Ffor 6 months Repeatability (Accident) 20.40%(SDAN)for 6 months Radiation Effect None Within Limits Stated Below Seismic Effect None Within Limits Stated Below Temperature Effect Included in Repeatability Errors (Design Input 4.3)
Stability Included in Repeatability Errors for 6 months (Design Input 4.3)
Temperature Limits 60*F to 90*F (Normal)
{ } 160*F (24 hrs, once/ year) 185'F (Acc!. dent for 6 hrs) 150*F (Acc dent for 8 hrs)
Humidity Limits 40-50% RH (Normal) 90% (24 hrs, once/ year) 90% (Accident for 14 hrs)
Radiation Limits s105 RADS (air) 20 yr TID (normal) 2 x 10 5 RADS 24 hr TID (Accident)
Seismic Limits (ZPA) 1.17 g OBE, 1.75 g SSE (During & Af ter)
Environmental Conditions (Reference 3.3):
EQ Zone C1B, Auxiliary Electric Equipment Room Normal and Accident Conditions:
Maximum Temperature 80*F Minimum Temperature 72*F Pressure +0.25" W.G.
Humidity 45% RH Radiation 1.0 x 103 RADS (40 years) l I REVISION NO. O
Exh?;h E NEP 1242 R: vision 5 COMMONWEALTH EDISON COMPANY CALCULATION NO. L-001443 PAGE 16 of 53 '
l 9.0 CALIBRATION INSTRUMENT DATA i 1
9.1 Calibration Method The following devices may potentially be used as measurement and test equipment when performing calibrations on the devices within the subject instrument loop.
~
The Calibration Error for each module consists of three random components:
- M&TE Error (MTEg) present at input
- Calibration Standard Accuracy (STD) which is negAigible per Assumption 5.3 9.2 Transmitter Calibration (MTE2)
The transmitter is calibrated using a pressure gauge fcr MTE2 m
{ }
and a digital multimeter for MTE2my.
9.1 Calibration Metbod From Reference 3.8, Manufacturer: Wallace & Tiernan Model: 62A-4C-0280 Range: 0 to 280" W.C.
Calibrated Accuracy: 2 0.50" W.C.
Minor Division: 0.5 PSIG Temp. Effect: 2 0.1% Range /10*C referred to 25aC Pressure gauge calibration accuracy (CAMTE2) is the manufac-turer's reference accuracy, and is rounded up to nearest minor division.
CAMTE2 = 0.50" W.C.
Per Reference 3.8, the standard deviation of calibration accuracy (CAMTE2 g ,3) is CAMTE2/2. Therefore.
CAMTE2 g ,3 =2 0.50" W.C. /2 =2 0.25" W.C.
l I REVISION NO, O
Exh'2h E NEP 12 02 R; vision 5 COMMONWEALTH EDISON COMPANY CALCULATION NO. L-001443 PAGE 17 of 53 ,
The reading error of an analog gauge is given as % of the sma'.lest division on the gauge. From the data above, REMTE2 = (%) (0.50" W.C. ) = s 0.125" W.C.
The temperature e ror is a degradation of the specified accuracy and is not considered an additional random error. From the data above, TEMTE2 refers to 25'C. .
Since the pressure transmitter input pressure is monitored at the transmitter, the temperature error is evaluated using the transmitter environment. From Section 8.2.1 the minimum tempera-ture at the transmitter location under normal operating condi-tions is 60*F (15. 6'C) . Therefore, ate,, = 15. 6*C - 2 5'C = 9.4*C From Section 8.2.1 the maximum temperate: e at the transmitter location under normal operating conditions is 118'F (47. 8'C) .
Therefore, AT. = 47.8 C - 25*C = 2 2. 8'C l l Therefore, AT is the maximum transmitter location temperature.
TEMTE2 = (0.1% FS/10*C)aT
= [ (0. 001)- (2 0 0" W.C. ) /10*C] (22. 8 *C] .
= 1 0.63840" W.C.
Per Reference 3.8, the standard deviation of temperature effect (TEMTE2g,3 ) if TEMTE2/2. Therefore, TEMTE2 g,3 =2 0.63840" W.C. /2
= 2 0.31920" W.C.
Therefore, MTE2m= [(CAMTE2 g,3 + TEMTE2 g,3) 2 + (REMTE2)2 ) 0.5
= ( (0. 25" W.C. + 0. 31920" W.C. ) 2 +(0.125" W.C.)2)o.5
= 2 0.582764" W.C.
9.1.1 calibration Standard Error (STD1)
The error due to calibration accuracy of calibration equipment is REVISION NO. O
Exh: lit E NEP 12-02 R: vision 5 COMMONWEALTH EDISON COMPANY 7 CALCULATION NO. L-001443 PAGE 18 of 53 ,
l assumed to be negligible (Reference 3.2). Therefore, l STD1 = 0 9.1.2 Determ. nation of Transmitter Input Calibration Error Propagated through the Transmitter (CALIg,) j The 1%TE error (2 0.582764" W.C.),was determined in Section 9.1. The transfer function is determined in Section 11.1.1.
Therefore, MTEI g, = 2 [ (MTE1) 2 - (dT/dP) 2) 0.5
= 2[(0.582764" W.C.)2 *(0.08 mA/" W.C.)2)o.5
= 20.046621 mA 9.2.2 Digital Multimeter Error (MTE2w7) 9.2.2.1 Digital Multimeter Error (MTE2mn)
Per Reference 3.8, I I Manufacturer: Fluke Model: 8500A Range: 10 Vdc (5% Digit Resolution)
From Section 8.2.1, the temperature range is 60 (15 . 6*C) to 118*F (47. ?'C) . Reference 3.8 provides the following specifications:
Reference Accuracy (RA) = 2(0.002%(RDG) + 1 (digits) )
Resolution (RES) = 0.0001 Vdc Temperature Effect (TE) = 2(0,0002%(RDG) + 0. 5 (digit) ) / *C) ( AT)
AT = (47. 8 - 28.0) *C = 19.8*C At a reading of 5.0 Vdc MTE2 my = 2[(RA/2 + TE/2)2 + RES )2 0.5
= [ (0. 0002 Vdc/2 + 0.001188 Vdc/2) 2+ (0. 0001 Vdc) 2) o.5
= 2 0.000701 Vdc l I REVISION NO. O
Exhibit E NEP 12-02 P; vision 5 COMMONWEALTH EDISON COMPANY CALCULATION NO.' L-001443 lPAGE '19 of 53 ,
9.2.2.2 Digital Multimeter Error (MTE2wt2)
Per Reference 3.8,
. Manufacturer: Fluke Model: 8500A Range: 10 Vdc (6% Digit Resolution)
From Section 8.2.1, the *.emperature range is 60 (15 . 6*C) to 118*F (47. 8'C) , Reference 3.8 provides the following specifications:
Reference Accuracy (R A) = s (0. 002% (RDG) + 9(digits))
Resolution (RES) = 0.00001 Vdc Temperature Effect (TE) = 2 (O . 0002% (RDG) + 0.5 (digit) ) /*C) (6T)
AT = (47.8 - 28.0) 'C = 19.8'C At a reading of 5.0 Vdc MTE2 mT2 " 2 [ (RA/2 + TE/2)2 + RES )2 o.5
= ((0.00019 Vdc/2+0.000297 Vdc/2) 2+ (0.00001 Vdc)2)o.5
= 1 0.000244 Vdc l I 9.2.2.3 Digital Multimeter Error (MTE2w,3 )
Per Reference 3.8, Manufacturer: Fluke Model: 8505A Range: 10 Vdc (Normal Mode)
From Section 8.2.1, the temperature range is 60 (15 . 6*C) to 118*F (4 7. 8'C) , Reference 3.8 provides the following specifications:
Reference Accuracy (RA) = : (0.0019% (RDG) + 8.9 (digita))
Resolution (RES) = 0.00001 Vdc Temperature Fffect (TE) = 2(0.0002%'"T;G) + 0.5 (digit) ) /*C) ( AT)
AT = (47. 8 - 28.0) 'C = 19.0*C At a reading of 5.0 Vdc 2
MTE2.73 = s((RA/2 + TE/2)2 + RES)o.5
= 2 [ (0.000184Vdc/2+0.000297 VCc/2) 2+ (0.00001 Vdc)2) o.5
=2 0.000241 Vdc l I i
REVISION NO. 0 l
Exhibit E NEP 12 02 Revision 5 COMMONWEALTH EDISON COMPANY CALCULATION NO. L-001443 ~
PAGE 20 of 53 ,
l 9.2.2.4 Digital Multimeter Error (MTE2,4) l Per Reference 3.8, Manufacturer: Fluke l Model: 8505A l Range: 10 Vdc (Average Mode)
From Section 8.2.1, the temperature range is 60 (15 . 6*C) to 118'F (47. 8'C) . Reference 3.8 provides the following specifications:
Reference Accuracy (RA) = * (0.00152% (RDG) + 69(digits))
Resolution (RES) = 0.000001 Vdc Temperature Effect (TE) = r(0.0002%(RDG) + 5 (digit) ) /*C) ( AT)
AT = (47.8 - 28,0)'C = 19.8'C At a reading of 5.0 Vdc 2
MTE2.g4 = s((RA/2 + TE/2)2 + RES ) o.5
= s ((0.000145Vdc/2+0.000297 Vdc/2)2+ (0.000001 Vdc)i]o.5
=s 0.000221 Vdc 9.2.2.5 Digital Multimeter Error (MTE2es)
Per Reference 3.8, Manufacturer: Fluke Model: 8600A Range: 20 Vdc From Section 8.2.1, the temperature range is 60 (15 . 6'C) to 118'F (47. 8'C) . Reference 3.8 provides the following specifications:
Reference Accuracy (RA) = 2(0.02%(RDG) + 0. 005% (RNG) )
Resolution (RES) = 0.001 Vdc Temperature Etfect (TE) = 2(0,001%(RDG) + 0. 0005% (RNG) ) / *C) ( AT)
AT = (47.2 - 35.0) 'C = 12.8'C At a reading of 5.0 Vdc MTE2 ,5 = 2[(RA/2 + TE/2)2 + RES )2 o.5
= t [ (0. 002Vdc/2 +0. 00192 Vdc/2) 2+ (0. 001 Vde) 2) o.5 l I
= 2 0 00220 Vdc REVISION NO. O
Exhibit E NEP 12-02 C; vision 5 COMMONWEALTH EDISON COMPANY CALCULATION NO. L-001443 PAGE il of 53 ,
9.2.2.6 Digital Multimeter Error (MTE2w16)
Per Reference 3.8,
. Manufacturer: Fluke Model: 8050A Range: 20 Vdc From Section 8.2.1, the temperature range is 60 (15 . 6*C) to 118'F (47. 8'C) . Reference 3.8 provides the following specifications:
Reference Accuracy (RA) = t (0. 03% (RDG) + 2(digits))
Resclution (RES) = 0.001 Vdc Temperature Bffect (TE) = i (0.1 (Accuracy Spec) /*C) ( AT)
AT = (47.8 - 28.0) *C = 19.8'C At a reading of 5.0 Vdc MTE2 mt6 = n[(RA/2 + TE/2)2 + RES )2 o.5
= s [ (0. 0035Vdc/2 + 0.00035 Vdc/2) 2+ (0. 001 Vdc) ] o.5 l l
=s 0.002169 Vdc 9.2.2.6 Worst Case MTE2 m, The greatest DMM error occurs with the Fluke 8600A. Therefore, MTE2m, = s 0.00220 Vdc Convert MTE2 m3 from 1 to 5 Vdc to 4 to 20mA by dividing with 2500 resistor, MTE2w, = s (0.00220 Vde/2500)
= s 0.0088 mA 9.2.2.7 Calibration Standard Error (STD2)
The error due to calibration uccuracy of calibration equipment is assumed to be negligible (Reference 3.2). Therefore, STD2 = 0 9.2.2.8 Determination of CAL 2 CAL 2 = [ (MTEIp ,) 2 + (MTE2m3)2 + (STD11 2+ (STD2)2)n
.[0 4 621 aA) 2+ (0. 0088 mA) 2+ (0) 2 + (0) 2)w lREVISIONNO. 0
ExhibH E NEP.1242 R; vision 5 COMMONWEALTH EDISON COMPANY CALCULATION NO. L-001443 PAGE 22 of 53 ,
10.0 CALIBRATION PROCEDtTRE DATA The design Input 4.5 provide the following:
Flow Element FE-1G33-N504 (RWCU Inlet Flow)
Range: 0 to 700 GPM = 0 to 200" W.C.
Trancmitter FT-1G33-N041A.B Calibrated Range 0 to 200" W.C. (4 - 20 mAdc)
Output Span: 1 to 5 Vdc (See Note 1)
Calio. Tolerance: i 0.02 Vdc Trip Unit FDS-1G33-N042A.B Setting Tolerances : 0.012 Vdc Per Design Input 4.5, Analytical Limits 600 GPM l )
Calibration Ftgquency (Design Input 4.5)
Transmitters, Trip Unit 18 months Late Factor 4.5 months Note 1: The input to the signal converter from the transmitter is measured as a 1-5 Vdc signal developed across a MTV (Master Trip Uait) , Further, the method used to calibrate the trans-mitter and the Master Trip Unit is to apply current from the transmitter through this MTU while measuring the DP input to the transmitter and simultaneously monitoring the voltage developed across this same MTU. The SRU used for this loops are 0.1% precision resistor. The uceuracy effect of this SRU is small compare to other error terms, and rre considered to be negligible.
1 I
l 1
l REVISION NO. 0
-- 1
Exhibh E NEP.1242 R: vision 5 COMMONWEALTH 9DISON COMPANY CALCULATION NO. L-001443 PAGE 23 of 53 ,
11.0 FLOW ELEMENT ERRORS (MODULE 1)
The flow element has an analog input and an analog output.
Therefore, it is classified as an analog module.
31.1 Random Error, Hornal Operating Conditions (oln)
Flow element accuracy is the only random error affecting the flow element. The flow element is not a calibratable device. As such, there is no setting tolerance (ST1) applicable for this device. The calibration error for this device is included in the reference accuracy of the flow element. Additionally, the flow element is the first modulo in the instrument loop.
21.1.1 Flow Element Reference Accuracy (Rain)
The error associated with the reactor water cleanup flow element is calculcted per the methodology contained in Reference 3.11 (see Assumption 5.6). Reference 3.11 classifies the e'cor terms calculated here aE random errors. The overall flow element measurement uncertainty (RA1) is calculated as follows:
l l RM = s (U,2 + U g ,2 + U,2 +Um 2)h Dass Uncertainty (U,) For Flow Nozzle The base uncertainty is determined from Table 4.10 of Reference 3.11. Per Assumption 5.6, the Group 2 base uncertainty for uncalibrated flow no::le is 3.20% flow. This value will be used to maintain conservatism in the calculation.
Us unu = 3.20% flow Minimum Upstream Straioht Run Uncertainty (Ugg)
From Section 8.1, the pipe size is 6 inches, schedule 120, and the inner pipe diameter is 4.876 inches. From Section 8.1, the limiting upstream straight run is approx 3mately 82.375"/4.876" =
16.89 pipe diameters, the beta ratio is 0.50, and the closest up-stream flow obstruction is a single 90' bend From Table 4.11 of Reference 3.11, the denominator for the upstream length ratio is from column 1 and is 7.0 diameters. The upstream length ratio is then:
straight length ratio = 16.89 diameters /7.0 diameters
= 2.41 The minimum straight run uncertainty (Uns) is taken from Figure
{ }
4.5 of Reference .1.11 as 1.0% of flow REVISION NO. O
Exhibit E NEP.12-02 C; vision 5 COMMONWEALTH EDISON COMPANY CALCU!ATION NO. L-001443 PAGE 24 of 53 ,
Beta Ratio Uncertainty (U,)
From Section 8.1, the beta ratio is 0.50. From Figure 4.6 of Reference 3.11, the beta ratio effect (U,) for a calibrated flow element is 0% of flow.
Minimum Downstream Straiaht Run Uncertainty (Unst)
From Section 8.1, the limiting downstrean straight run is 42"/4.876" - 8.61 pipe diameters. From Table 4.11 of Reference 3.11, the denominator for the downstream length ratio is taken from column 7 and is 3.5 diameters. The downstream length ratio is then:
straight length ratio = 8.61 diameters /3.5 diameters
= 2.46 The minimum ctraight run uncertainty (U4.9 of Reference 3.11 as 0.05% of flow.pst) is taken fr RAl n ,,,, g, = s [ U, ,,,, g ,2 + Utu ,2 + U,2 gost 3
= s ((3.2%)2 + (1. 0% ) 2 + (0%)2 + (0. 05% ) 2]
- Flow l I
= s 3.352984% Flow As stated in Section 11.1, CAL 1 = 0, ST1 = 0, and clin = 0.
Therefore, Determination of Random Error For Flow 'lom:le (oln ,,,,i,)
oln ,,,,g, a i ( ( RAln ,,,,g,/ 2)2 + (CAL 1)2 (ST1)2 + (olin) 2 ) o.5
= s ((3.3529841 Flow / 2 ) 2 + (0)2 + (0)2 + (0)20.5 3
= s 1.676492% Plow (lo) 11.2 Random Error, Accident Conditions (cla)
The random error for the flow elements is the same for normal and accident conditions sinca none of the error terms are affected by the accident, therefore:
cla ,,,,g, = s 1.676492% Flow (lo) l l REVISION NO. O
Exhibh E NEP.1242 R: vision 5 COMMONWEALTH EDISON COMPANY CALCULATION NO. L-001443 PAGE 25 of 52 4
11.3 Non-Random Error, Normal and accident Orerating Conditions i 1
The flow element is a mechanical device that is not affectea vy l the following non-random errors: '
Humidity Errors: elH =0 Ambient Temperature Error elT = 0 Radiation Error elR = 0 Seismic Error: elS = 0 Static Pressure Effects: elSP = 0 Ambient Pressure Errors: elAP = 0 Power Supply Effects: e1V = 0 11.3.1 Process Error (elP)
From Section 7.0, the process error can very from a normal pressure of 1005 PSIG and 533'F to 1025 PSIG and 550'F. As pressure and temperature changes, the density of the fluid changes. This change in density results in a change in the flow.
The error will be evaluated at design flow of 500 GPM and at DP of 101.62" WC described in the Reference 3.15. This process
{ } conditions are calculated at 2005 PSIG and temperature of 533*F.
Using the basis flow equation from Reference 3.17 o*s if where: Q = flow k - constant dP = differential pressure p = density of fluid Per Reference 3.16, the norma] pressure of 1005 PSIG and temperature vf 533*F, the density p = 47.116472 lbm/ft . 3 solving for kt O
A.
J T' h li 500 GIN 101. 62 11#c
$ 4 7.12 J te / t t '
340.473292 REVISION No. 0
ExhibH E NEP.12-02 R visio3 5 COMMONWEALTH EDISON COMPANY 7 CALCULATION NO. L-00A443 PAGE 26 of 53 ,
I Per Reference 3.16 at the temperature of approximately 550*F, al.d maximum pressure of 1025 PSIG, p = 46.01085 lbm/ft . 3
~3:
One i . ica v.,
$ y
. (340.473292) \ 46.012 Jte/tt
- 505. 984 GIM A0 50$.994356 ppm 500 g;c
. S. 984356 GtM Calculation of flow error due to variation in the pressure and
{ l temperature:
eip = s 5.984356 GPM * (100% flow span /500 GPM) eip = s 1.1969% flow span 11.3.3 Process Error Due lo Unknown Uncertainty (elpunknown)
Per Assumption 5.5, the unknown uncertainty is equal to elp m ,= 1 0.50% flow span l I REVISION NO. O
ExhibH E NEP.1S42 1 R: vision 5 l I
COMMONWEALTH EDISON COMPANY CALCULATION NO. L-001443 PAGE 27 of 53 ,
11.3.4 Total Non-Random Errors, Normal Operating Condition (rein)
The error calculated under normal operating condition is used to determine Allowable Value (AV). Only errors t hat ef f ect the "as-found" setpoint value will be calculated under Normal Operating Conditions.
The total non-random crrors for the flow element is given by the sum of the individual errors. Therefore:
Eeln = :(elHr. + elTn + elRn + elSn + elSPn + e1APn + elPn
+ e1Vn + D + elpn g . )
= : (0 + 0 + 0 + 0 +0 + 0 + 0 + 0 + 0 + 0)
= 0 11.3.5 Total Non-Random Errors, Accident Operating Condition (Eela)
The total non-random errors for the flow element is given by the sum of the individual errors. Therefore:
l } Eela = $(elHa + elta + elRa + elSa + e1 spa + e1APa + elPa
+ e1Va + D + elpa unknoien )
= :(0 + 0 + 0 + 0 +0 + 0 + 1.1969% flow span + 0 + 0
+ 0.50% flow span)
= a 1.6969% flow span l l REVISION NO. O
Exhibh E NEP.1242 R: vision 5 COMMONWEALTH EDISON COMPANY CALCULATION NO. L-001443 PAGE 28 of 53 ,
11.4 Module 2- Flow Transmitter Error These loops consists of the flow element, the flow transmitter, and the master trip unit.
11.4.1 Transfer Function Derivation The error in the transmitter output due to the input random and/or non-random errors is esiculated using the partial deriv-ative method per Reference 3.2, as follows, T = K (dP - dP,) + C where: K = transmitter gain (mA/" W.C.)
dP = analog input signal (" W.C.)
d P, = minimum value of calibrated span (" W.C.)
C = transmitter output offset (mA)
The process span of 0 to 700 GPM corresponds to a DP of 0 to 200" WC, and the transmitter output will be 4-20 nA. The transfer function of the transmitter can be written as,
{ }
For FT-1G33-N041 A, B, the transmitter input span is 200" W.C.
T= (16 mA/ 200" W.C. ) (dP - 0) + 4 mA The partial derivative of T with respect to dP yields:
6T/6dP = (16 mA/200" W.C.) = 0.08 mA/" W.C.
11.4.2 Random Errors. Normal Ooeratina Conditions 11,4.2.1 Transmitter Reference Accuracy (RA2)
From Section 8.2, the transmitter accuracy is s 0.251 calibrated span. The output span of the transmitter is 16 mA. Therefore, RA2 = 2 0.25% span
= s (0. 25%) (16 mA) = 2 0.04 mA The vendor's specification for accuracy is a 30 value. There-fore, RA2 g ,3 =s 0,04 mA/3 =s 0.013333 mA [lo) l l REVISION NO. O ;
ExhibM E i NEP.124 <
R; vision 0 COMMONWEALTH EDISON COMPANY CALCULATION NO. L-001443 PAGE :29 of 53 ,
11.4.2.2 Transmitter Calibration Error (CAL 2)
Per Section 9.2.2.8, the calibration error CAL 2 = n 0.047444 mA 11.4.2.3 Transmitter Setting Tolerance (ST2)
From data given in Section 9.0, calibration tolerance for the transmitter is 2 0.02 Vdc. Therefore, per Section 10.0, ST2 g,3 =n 0.02 Vdc/3
= 0.006666 Vdc Using the Ohm's Law, 1-5 Vdc will be converted to 4-20 mA by, using the 2500 resistor, ST2 g ,3 = (0.006666 Vdc /2500)
= 3 0.02666 mA
{ } 11.4.2.4 Temperature Error (eT2n)
Der Design Input 4.2, t.he vendor has determined that, the temperature error is considered to be a random error. Based on Reference 3.5, and Assumption 5.5, the ambient temperature at the transmitter location varies from a minimum of 60'F to a maximum of 118'F. From Section 8.1, the temperature effect on the trans-mitter within this temperature range is determined below:
elTn = : ( (0.75% (URL) + (0. 5% (SPAN) ) /100
- F) (oT)
= [ (0. 0075*750"WC + 0. 005*200. 00"WC) /100'F) * (118'F-60
- F)
= , 3.8425" W.C.
From Design Input 4.4, Temperature error is considered as a 30 value, therefore elTn g ,3 = elTn/3.
e1Tn g ,3 = 3.8425" W.C./3 =a 1.280833" W.C.
Using the transfer function determined in Section 11.4.1, The temperature error term converted in terms of mA is as follows:
eT2n en,3 =
(eT2ng 4) * (dT/dP) g = : (1. 2 8 0 8 3 3 " W. C . ) * ( 0. 08 mA/" W . C . )
{ = 0.102467 mA REVISION NO. 0 w,w
i Exhibh E NEP.1242 R:visio3 5 COMMONWEALTH EDISON COMPANY CALCULATION NO. L-001443 PAGE 30 of 53 11.4.2.5 Radiation Error (eR2n) l Per Design Input 4.2, the vendor has determined that the radiation error is considered to be a random error. From Sec- I tion 8.2, radiation effects are described for exposure during and after 5.5x107 rads. Per Section 8.2.1, the transmitter is located in the reactor building which has a 40 year TID of 2.0x106 rads. Therefore, .
eR2n = 0 11.4.2.6 Seismic Error (eS2n)
Per Design Input 4.2, the vendor has determined that the seis-mic error is considered to be a random error. A seismic event defines a particular type of accident condition. Errors in-cluded on the instrument due to seismic vibrations are defined only for accident conditions and therefore, are not applicable during normal plant conditions, eS2n = 0 l I 11.4.2.7 Static Pressure Effect (ESP 2n)
Per Design Input 4.2, the vendor has determined that, the Static Pressure error is considered to be a random error. The instrument is valved out during calibration, and theref ore, does not experience any effect of high line pressure. The evaluation of the static pressure error is under accident condition since, only errors that effect the as-found setpoint value will be calculated under normal operating conditions.
Therefore, elSPn = 0 11.4.2.8 Pressure Error (eP2n)
Per Design Input 4.2, the vendor has determined that the pressure error is considered to be a random error. Per Section 7.0, the maximum static pressure is 1025 PSIG, which is below the published specification. Therefore, Overpressure effect will not be considered. Therefore, elPn = 0 11.4.2.9 Drif t (D2)
{ j Per Design Input 4.2, the vendor has determined that the drift error is considered to be a random error. From Section 8.2, REVISION NO. O
Exh It E NEP-12 02 R; vision 5 COMMONWEALTH EDISON COMPANY CALCULATION NO. L-001443 PAGE 31 of 53 ,
drift is $0.2% URL for 30 months. From Section 10.0 the trans-mitter calibration frequency is 18 months plus 25% late factor.
Vendor also states that the Drift is not time dependent, and error will not reduce if the transmitter is calibrated more frequently. Therefore, D2 = [(IDE)]
= [ (0. 2% * (750" WC) ))
=3 1.5" W.C.
From Design Input 4.2, drift error is considered as a 20 value, therefore, D23 , -t 1.5" W.C./2
= 2 0.75" W.C.
Using the transfer function determined in Section 11.4.1, The drift error term converted in terms of mA is as follows:
l l D2 g,3 = t(D2g,3 ) * (dT/dP)
= s (0. 75" W.C. ) * (0.08 mA/" W.C. )
= s 0.060 mA 11.4.2.10 Random Input Error (o2 inn)
The random error present at the input to the transmitter is due to the flow element and was calculated in Sectfon 11.1.1 c2 inn = clo,,a = r 1.676492% of flow span From Section 8.2, the dp span is 200" W.C.. Per Reference 3.2,
% flow span to % dp span is converted as below:
Evaluating at maximum flow of 700 GPM:
t flow rpan error . 'N". ~*
2 nc tu l ! J :=w tl.626492% [icw spsts.
- 'U". 700 GIN 2
4 dp rp n .13. 35 2 9 0 4 i k
REVISION NO. O
Exh2it E NEP.12-02 R ;visio n 5 COMMONWEALTH EDISON COMPANY CALCULATION NO. L-001443 PAGE 32 of 53 ,
c2 inn a 700 cem = s 3.352984% span * (200" W.C./100% span)
= s 6.705968" W.C.
This error is propagated through tha transmitter using the derivative of the transfer function determined in Section 11,4.1, as follows:
c2 inn,, p = t (o2 inn,7nn cp,) (5T/6P)
= s (6.705968" W.C. ) (0.08 mA/" W.C. )
= s 0.536477 mA 11.4.2.11 Determination of Transmitter Random Error (o2n) c2n = t[(RA2) + (CAL 2)2 + (ST2)2 + (eT2n)2 + (eR2n)2 + (eS2n)2
+ (ESP 2n)2 + (eP2n)2 + (D2)2 + (o2 inn ,,)
p 2) o.5 02n = s[(RA2)2 + (CAL 2)2 + + (eR2n)2
+ (eS2n)2 + (ESP 2n)2 +(ST2)2 +(eP2n)2(eT2n)2
+ (D2)2 + (c2 inn ,,) 2) o.5 t
l l = s [ (0. 013333 mA) 2 + (0.047444 mA)2 + (0.026666 mA)2 (0.1024 67 mA) 2 + + (0)2 + (0)2 + (0)2 + (0.060 mA)2 .
(0. 5364 77 mA) 2) o.5 (0) 2
=s 0.552310 mA I I REVISION NO. l 0
Exhibh E NEP.1242 R: vision 5 COMMONWEALTH EDISON COMPANY CALCULATION NO. L-001443 PAGE 33 of 53 ,
11.5 Random Error, Accident Conditions (o2a) 11.5.1 Transmitter Reference Accuracy (RA2)
The transmitter reference accuracy specification is dependent only on the calibra..ed span and is not a function of the trans-mitter environment. Therefore, for the purpose of this calcu-lation, the reference accuracy determined for normal operating conditions (Section 11.4.2.1) is the same error that would occur during accident conditions.
RA2 = 3 0.013333 mA 11.5.2 Calibration Error (CAL 2)
Per Section 9.2.2.8, the calibration error CAL 2 = s 0.047444 mA 11.5.3 Transmitter Setting Tolerance (ST2)
Calibration of the transmitter takes place during normal plent I I conditions, Therefore, The setting tolerance for normal and accident conditions are the same. F.om Section 11.4.2.3:
ST2 = s 0.02666 mA 11.5.4 Transmitter Drift Error (D2)
Instrument Drift is a function of time, and is not dependent on environmental conditions. Therefore, The Drift error for normal and accident conditions are the same. From Section 11.4.2.9:
D2 = 1 0.060 mA l I REVISION NO. 0 .
Exhibit E NEP 1242 R; vision 5 COMMONWEALTH EDISON COMPANY
'lCALCULATIONNO. L-001443 PAGE 34 of 53 ,
11.5.5 Temperature Error under Accident Conditions (e2Ta)
Per Design Input 4.1, the vendor has determined that, the temperature error is considered to be a random error. Based on Reference 3.3 and Assumption 5.5, the ambient temperature range at the transmitter locatien during accident conditions varies from a minimum of 60'F to a maximum of 145'F. From Section 8.1, the temperat.re effect on the tran*smitter within this temperature range is determined below:
e2Ta = s [ (0. 75% (URL) + 0. 5 % (SPAN) ) /100
- F) ( AT)
= e[(0.0075(750"WC)+ 0. 005 (200"WC) ) /100* F] (14 5' - 60'F)
=s 5.63125" WC Per Design Input 4.4, the temperature effect is a 30 value, therefore e2Ta g ,3 = J2Ta/3.
e2Ta g ,3 = (1/3) ( 2 5.53125" WC) = $1.877083" WC Using the transfer function determined in Section 11.4.1, The
{ } temperature error term expressed as transmitter output is as followst e2 Tag,3 = , (e2Ta g ,3 ) * (dT/dP)
= : (1. 877083" WC) * (0. 08 mA/" W.C. )
= 2 0.150167 mA 11.5.6 Radiation Error (e2Ra)
Per Design Input 4.2, the vendor has determined that, the radiation error is considered to be random crror. As noted in the vendor specification, the radiation effect on the transmitter is given for both low and high values of radiation.
From Reference 3.3, the worst case radiation level within the transmitter environment during accident condition is 1 x 10 7 RADS (Gamma Integrated) . Within this range, the radiation effect equation used is for low level radiation as given below:
e2Ra =3 0. 5% (URL) + 1.0% Span
= 3 0.005 (750" WC) + 0.01 (200" WC)
= 1 5.75" WC e
REVISION NO. O
Exh2it E NEP.12 02 R v2 ion 5 COMMONWEALTH EDISON COMPANY CALCULATION NO. L-001443 PAGE 35 of 53 ,
Per Design Input 4.2, the Radiation effect is considered to be a 20 value, therefore, e2Ra ,,3 g
= e2Ra/2.
e2 Rag,3 g
= s 5.75" WC/2 = i 2.875" WC Using the transfer function determined in Section 11.4.1, The radiation error term expressed as transmitter output is as fol-lows: .
e2Ra gg,3 o s (e2Ra g3,3) * (dT/dP)
= s (2. 875" WC) * (0. 08 mA/" W.C. )
= s 0.23 mA ,
11.5.7 Static Pressure Err 0r (e2 spa)
Per Design Input 4.2, the vendor has determined that, the i Static Pressure error is considered to be a random error. From Section 7.0, the systems maximum operating pressure is 1025 poig. Therefore, l h ESP 2a nto " ' O.2% URL/1000 poig
=s (0.2%) (750 INWC)
- 1025 psig/1000 psig
= s 1.5375" W.C.
ESP 2asp ,, = s 0.5% rdg/1000 psig
= s (0.5%) (200" W.C. )
- 1025 psig/1000 psig
= : 1.025" W.C.
ESP 2a = s ((ESP 2aneo) + (ESP 2aspaw) 2) 0.5
= s ( (1. 5375" W.C. )' + (1. 02 5" W . C. )i o.5 l
= s 1.847845" W.C.
From Design Input 4.2, Ctatic Pressure error is considered as a 30 value, therefore ESP 2a gi ,3 = ESP 2a/3.
ESP 2a gg ,3 = 1.847845" W.C./ 3 = s 0.615948" W.C.
Using the transfer function determined in Section 11.4.1, the static pressure error term converted in terms of mA is as fol-lows:
ESP 2a g3 ,3 = s (ESP 2ag3,3) * (dT/dP)
= , ( 0 . 615 9 4 8 " W . C . ) * ( 0 . 0 8 mA / " W . C . )
g = s 0.049276 nA
{
REVISION NO. O
Exhibh E NEP.1242 R: vision s COMMONWEALTH EDISON COMPANY CALCULATION NO. L-001443 PAGE 36 of 53 ,
11.5.8 Seismic Error (e2Sa)
Per Design Input 4.2, the vendor has determined that, the seismic error is considered to be a random error. As noted in the vendor's specifications listed in Section 8.2, the seismic effect on the transmitter is given for the ZPA of 8.5 9's, and the vertical ZPA of 5.2 9's. Therefore, the seismic effect on the transmitter during accident conditions is:
e2Sa = , 0.5% (URL)
=s 0.005(750" WC)
= 3 3.75" WC Prom Design Input 4.2, Seismic error is considered as a 20 value, therefore e2Sa g ,3 = e2Sa/2.
e2 Sag,3 = 3.75" W.C./2
= 2 1.875" W.C.
{ } Using the transfer function determined in Section 11.4.1, The Seismic error term expressed as transmitter output is as follows:
e2Sa g ,3 = i(e2Sag,3) * (dT/dP)
= r (1. 8 7 5" W . C . ) * (0. 0 8 mA/" W . C. )
= a 0.15 mA 11.5.9 Pressure Effect (e2Pa)
Per Design Input 4.2, the vendor has determined that the pressure error is considered tc be a random error. Per Section 7.0, the maximum static pressure is 1025 PSIG, which is well below the published specification. Therefore, Overpressure effect will not be considered. Therefore, e2Pa = 0 I I REVISION NO. 0
Exhibit E NEP+12-02 R;visloa 5 COMMONWEALTH EDISON COMPANY CALCULATION HO. L-001443 PAGE 37 of 53 ,
11.5.10 Random Input Error (o2ina)
Per Section 11.4.2.10, The input error from the flow element for accident condition is determined to be same as normal random error. Therefore, c2ina,,p =a 0.536477 mA 11.5.11 Determination of Transmitter Random Error (o2a) 02a = [(RA2)I + (CAL 2) 2 + (ST2)2 + (eT2a)2 + (eR2a)2 + (eS2a)2
+ (ESP 2a)2 + (eP2a)2 + (D2)2 + (o2ina ,,)
p 2) o.5
+ (eR2a)2 c2a = +i ( (RA2)i +(eS2a)2 +(CAL 2)2+ +(ESP 2a)2 +(ST2) 2(eP2a) 2(eT2a) p
= i((0.013333 mA)2 + (0.047444 mM 2+ (0.02666 mA)2 (0.150167 mA) 2 + (0.23 mA)2 + (0.15 mA)2 + (0. 04:s276 mA) 2 ,
(0)2 4 (0.060 mA)2 + (0.536477 mA) 2) o.5
=2 0.628431 mA l l REVISION NO. 0 f
Exhibh E NEP.1242 R: vision 5 COMMONWEALTH EDISON COMPANY l Q.~ PAGE 38 of 53 CALCULATION NO. L-001443 11.6 Non-Random Errors for Normal Operating Conditions (Es2n) 11.6.1 Humidity Error (e2Hn)
The transmitter humidity limit is 100% RH per vendor specifica-tions listed in Sections 8.2. From Section 8.2, the humidity range at the transmitter location during normal operation is 25-35% RH. Therefore e2Hn = 0 11.6.2 Pressure Error (e2Pn)
There are no ambient pressure errors described in the vendor's specifications for this device. Based on Assumption 5.2, ambient pressure effects associated with the transmitter are included in instrument reference accuracy, Therefore:
e2Pn = 0 11.6.3 Power Supply Effects (e2Vn)
Per Section 8.1, e2Vn = 0.005% span / volt
{ }
Per Reference 3.5, table 3, the maximum and minimum operating voltage available to drive the tra..smitterc are 26 Vdc and 22 Vde , respectively. Therefore, the maximun. voltage variation possible for operating the transmitter is 4 Vdc.
e2Vn = 0.00005* (200" W.C. )
- 4V ) /1V
= 10.04" W.C.
Using the transfer function determined in Section 11.4.1, The power supply error term expressed as transmittar output is as follows:
E e2Vn g ,3 = 3 (e2Vng,3) * (dT/dP)
= s (0. 04" W.C. ) * (0. 08 mA/" W.C. )
= 0.0032 mA 11.6.4 Process Error (e2pn)
Process measurement errors are associated with the flow element and were evaluated under Section 11.3.1. There are no additional process errors associated with the transmitter. Therefore, e2pn = 0 REVISION NO. O
Exhibh E NEP.1242 '
R;vtlon 5 COMMONWEALTH EDISON COMPANY
\ W CALCULATION NO. L-001443 PAGE 39 of 53 ,
11.G.5 Insulation Resistance Error (e2IRn)
References 3.1 and 3.3, under conditions of high humidity and temperaturra associated with high energy line breaks (HELB),
insulation r.sistance may be reduced. This reduction results in signal error that is experienced during harsh environmental conditions, hence IR is not applicable during normal plant condi-tions. Therefora; .
e2IRn = 0 11.6.6 Non-Random Input Error (e2 inn)
Tre non-random error present at the input to the transmitter is due to the flow eletaent and was calculated in Section 11.3.3 e2 inn = ein = 0 11.6.7 Transmitter Total Non-Random Error (Ee2n)
Ee2n = (e2Hn + e2Pn + e2Vn + e2pn + e2IRn + e2 inn)
{ ) = s(0 + 0 + 0.0032 mA + 0 + 0 + 0)
=* 0.0032 mA REVISION NO, 0
ExhibH E NEP.1242 R: vision 5 COMMONWEALTH EDISON COMPANY 9CALCULATIONNO. L-001443 PAGE 40 of 53 ,
l l
l 11.7 Non-Random Errors for Accident Operating Conditions (Ee2a)
I 11.7.1 Humidity Error (e2Ha)
The transmitter humidity limit is 100% RH per vendor specifica-tions listed in Sections 8.2. From Section 8.2, the maximum humidity at the transmitter location during accident operation is 95% RH. Therefore: .
e2Ha = 0 13.7.2 Pressure Error (e2Pa)
There are no ambient pressure errors described in the vendor.'s sperf.f2 cations for this device. Based on Assumption 5.2, ambient predsure effects associated with the transmitter are included in
( inscrument reference accuracy, Therefore:
e21 a = 0 11.7.3 Power Supply Effects (e2Va) l l Per Section 8.1, e2Vn = 0.005% span / volt Per Reference 3.5, table 3, the r3ximum and minimum operating voltage available to drive the transmitters are 26 Vdc and 22 Vde, r.3pectively. Therefore, the maximum voltage variation possible for operating the transmitter is 4 Vdc. ;
e2Va = 0.00005e (200" W.C. )
- 4V ) /1V
= $0.04" W.C.
Using the transfer function determined in Section 11.4.1, The power cupply error term expresced as transmitter output is as fol-lows:
e2Va n ,3 = s ( e 2Va g ,,3 ) * (dT/dP)
= : (0.04" W.C. ) * (0. 08 mA/" W.C. )
= 1 0.0032 mA 11.7.4 Process Error (e2pa)
Process measurement errors are associated with the flow element and were evaluated under Section 1~.3.1. There are no additional process errors associated wv.h the trsnsmitter. Therefore, e2pa = 0 REVISION NO. 0 1p- ;- r
Exhibit E NEP112-02 R; vision 5 COMMONWEALTH EDISON COMPANY CALCUIATION NO. L-001443 PAGE 41 of 53 ,
11.7.5 Insulation Resistance Error (e2 ira)
Per References 3.18 and 3.19, the insulation resistance error is considered negligible with respect to other error tenns, Therefore, e2 ira = 0 11.7.6 Non-Random Input Error (e2ina) ,
The non-random error present at the input to the transmitter is due to the flow element and was calculated in Section 11.3.3 e2ina = e1 = a 1.6969% of flow span From Section 8.2, the dp span is 200" W.C.. Per Reference 3.2, %
flow span to % dp span is converted as below:
Evaluating at maximum flow of 700 GPM:
t flow sg an error . ' UP 2
*" e normal
" A"" !)vw II'"
l h 11.69691 flow sf an . I dP2 #P'" . 00 m 700 GI?f 4 dp cru n . 13.3938%
e2ina,7ooop, =n 3.3939% span * (200" W.C./100% span)
= 4 6.7876" W.C.
This error is propagated through the transmitter using the derivative of the transfer function determined in Section 11.5.1, as follows:
e2ina pnop = $ (e2ina,70o cp,) (6T,/5P)
= : (6.7876" W.C. ) (0.08 mA/" W.C. )
< - 0.543008 mA 11.7.7 Transmitter Total Non-Random Error (Ee2a)
Ee2a = (e2Ha + e2Pa + e2Va + e2pa + e2 ira + e2ina ,op) p
= ,(0 + 0 + 0.0032 mA + 0 + 0 + 0.543008 mA)
= 2 U.546208 mA
{ }
REVISION NO. O
Exhibit E NEP.12-02 R;v% ion 5 COMMONWEALTH EDISON COMPANY CALCULA*IION NO. L-001443 PA"E 42 of 53 ,
11.8 MASTER TRIP UNIT ERRORS (MODULE 3)
Module 3 Has an analog input with a discrete output, classified as a bistable module.
11.8.1 Random Error - Bistable Module (o3) (Master Trip Unit) 11.8.1 MTU Trip Point Repeatability (RPT2)
The vendor repeatability specification listed in Section 8.2 defines a 20 value that is accurate for 6 months (Design Inputs 4.3, 4.4). The calibration frequency (SI) is 18 months and the late factor (LP) is 4.5 months. Therefore, The muimum temperature at the MTU location is 80*F (which is within the vendor's 60*F to 90'F repeatability spec.) and the input span is 4.0 Vdc.
RPT3n = $ (0.13% of span /100'F) /6 months) (SI) (1 + LF/SI)
RPT3n = :((0.0013u (4.0 Vdc)) /6 months) * (18 months) * (1+ 4.5/18) l l = 1 0.0195 Vdc The vendor's specification for accuracy is a 20 value. Therefore, the standard deviation for reference accuracy is as follows, RPT3n g ,3 = ( 0.0195 Vdc) /2
=$ 0.00975 Vdc 11.8.2 MTU Calibration Error (CAL 3) 11.8.2.1 Calculation o." MTE3 a From Section 9.2.2.6, The worst case MTE used to measure the input to the MTE is MTE3m=2 0.00220 Vdc 11.8.2.2 Calculation of STD3 The error due to calibration accuracy of calibration equipment is assumed to be negligible. Tharefore, STD3 e 0 l
l REVISION NO. O l
Exhibit E NEP11242 R:visio2 5 COMMONWEALTH EDISON COMPANY CALCULATION NO. L-001443 PAGE 43 of 53 ,
The calibration error is determined as, follows:
CAL 3 =
((MTE33)2 + (STD3)2).
= *[(0.00220 Vdc)2 + (0)2)%
= s 0.00220 Vdc 11.8.3 Setting Tolerance (ST3)
The master trip unit setpoint setting tolerance is given in Section 10.^.
ST2 = s 0.012 Vdc Per Section 2.1.a, ST1 is considered as a 30 value, therefore ST3g,3 = ST3 /3.
ST3 g,3 = s 0.012 Vdc/3 = 10.004 Vdc 11.8.4 Random Input Errors (o3ina) l l The random error present at the input to the MTU is due to the transmitter and was calculated in Section 11.4.2.11. Calculation p is equivalent to the scaling conversion due to the of Lineari of the devices. The value for c2n detennined for the c2,,ty transmitter is provided in tennu of the transmitter output.
Therefore, c3 inn = c2pe, = so2n c31na = 2 0.551936 mA Convert c31na from 4 to 20mA to 1 to 5 Vdc by multiplying with 2500 resistor, 031nn = s (0.552310 nm) * (2500)
= 3 0.138078 Vdc 11.8.5 Drift Error (D3)
Based on Design Input 4.3, the drift error associated with the MTU is included in the repeatability. Therefore:
D3 = 0 l I REVISION NO. O
I Exhibh E NEP 12-02 R; vision 5 COMMONWEALTH EDISON COMPANY CALCULATION NO. L-001443 PAGE 44 of 53 ,
11.8.6 Temperature Error (e3Tn)
Based on Design Input 4.3, the temperature error associated with the MTU is included in the repeatability. Therefore e3Tn = 0 11.8.7 Determination of MTU Random Errors (o3n) 03n = [ (RPT3 (3,3) 2 + (CAL 3 ) 2 + (ST3)2 + (o3 inn)I+ (D3) 2 + (e3Tn)2)o.5
= + (0.004 Vde)r
[(0.00975 Vdc)
+ (0.138078 Vdc)22+ +(0.00220 Vdc)2 (0)2 + (0)2)o.5 03n = s 0.138497 Vdc l I I I REVISION NO. O
Exhibh E NEP21242 Revision 5 COMMONWEALTH EDISON COMPANY CALCULATION NO. L-001443 PAGE 45 of 53 ,
11.9 Random Error, Accident Conditions (o3a) 11.9.1 MTU Trip Point Repeatability (RPT3a)
The vendor does provide accident condition specifications for the MTU. However, the MTU is located in a controlled environmental area such that Normal Operating Conditions and Accident Condi-tions are the same (Section 8.2). From Section 11.8.1, RPTJa = RPT3n = s 0.00975 Vdc 11.9.2 MTU Calibration Error (CAL 3)
Calibration of the MTU takes place during normal plant condi-tions. Therefore, The calibration error for normal and accident conditions are the same. From Section 11.8.2:
CAL 3 = s 0.00220 Vdc 11.9.3 MTU Setting Tolerance (ST3)
Calibration of the MTU takes place during normal plant condi-
{ } tions. . Therefore, The setting tolerance for normal and accident conditions are the same. From Section 11.8.3:
ST3 = s 0.004 Vdc 11.9.4 Drift Error (e3D)
Dased un Design Input 4.3, the drift error associated with the MTU is included in the repeatability error. Therefore:
e3D =0 11.9.5 Temperature Error (e2Ta)
Based on Design Input 4.3, the temperature error associated with the MTU is included in the repeatability error. Therefore:
e3Ta =0 l I REVISION NO. O
ExF'bH E NEP11242 Revision 5 COMMONWEALTH EDISON COMPANY ,
i l l CALCULAT*40N NO. L-001443 PAGE 46 of 53 .
11.9.6 Random Input Errors (o3ina)
The random error present at the input to the MTU is due to the i transmitter and was calculated in Section 11.5.11. Calculation of l c2,,, is equivalent to the scaling conversion due to the l linearity of the devices. The value for c2a determined for the !
transmitter is provided in terms of the transmitter output.
Therefore, 031na = o2,,, = io2a 03ina = s 0.628431 mA Convert 031na from 4 to 20mA to 1 to 5 Vdc by multiplying with 2500 resistor, c3ina = , (0.628431 mA) e (2500)
= i 0.157108 Vdc 11.9.7 Determination of MTU Random Errors (o3a) l I 03a = [ (RPf3 (3,3) 2 + (CAL 3 ) 2 + (ST3)2 + (c31na) 2+ (D3 ) 2 + (e3Ta) 2) 0.5
=
((0.00975 Vde)8 +, (0.00220 Vdeg.2 + (0.004 Vdc)2 (g)2 + (0)2) 5
+ (0.157108 Vdc)2 03a = , 0.157476 Vdc REVISION .40. 0
ExhibM E NEP 1242 R vision 6 COMMONWEALTH EDISON COMPANY
'[ CALCULATION NO. L-001443 PAGE 47 of 53 ,
I g
11.10 Non-Random Errors for Nornal Operation (Ee3n) 11.10.1 Humidity Error (e3Hn)
There are no humidity related errors described in the vendor's specifications for this device. Based on assumption 5.2, humidity effects associated -ith the MTU are included in the repeatability error. Theretore: ,
e3Hn = 0 11.10.2 Radiation Error (e3Rn)
Based on Reference 3.5, the radiation level within the MTU envi-ronment during accident plant conditions is < 1 x 10 RADS 3 TID.
From Reference 3.8, the accuracy of the MTU will remain within its stated repeatability within radiation levels s 1 x 105 RADS TID. Therefore:
e3Rn = 0 11.10.3 Seismic Error (e3Sn) l l A seismic event defines a particular type of accident condition.
Errors included on the instrument due to seismic vibrations are defined only for accident conditions and therefore, are not applicable during normal plant conditions.
e3Sn = 0 11.10.4 Static Pressure Error (e3SPn)
The MTU is an electrical device and as such is not affected by static pressure changes. Therefore:
e3SPn = 0 11.10.5 Pressure Error (e3Pn)
The MTU is an electrical device and as such is not affected by ambient pressure changes. Therefore:
e3Pn = 0 11.10.6 Power Supply Error (e3Vn)
There are no power supply variation effects stated in the g
vendor's specifications for this device. Based on Assumption q
5.2, error effects associated with power supply fluctuations are REVISION NO. O
Exhibh E NEP.1242 R:vtlon 5 COMMONWEALTH EDISON COMPANY CALCULATION NO. L-001443 PAGE 48 of 53 included in the repeatability error. Therefore e3Vn = 0 11.10.7 Process Error (e3pn)
The MTU is an electrical device and as such is not affected by process errors. Therefore: ,
e3pn = 0 11.10.8 Non-Random Input Error (e31nn)
The non-random error present at the input to the trip unit, is due to the transmitter and was calculated in Section 11.6.7:
e3 inn = Ee2n
=s 0.0032 mA Convert e3 inn from 4 to 20mA to 1 to 5 Vdc by multiplying with 2500 resistor, l l e3 inn =s (0.0032 mA) * (2500)
= s 0.0008 Vdc 11.10.9 Insulation Resistance Error (e3IRn)
Insulation resistance error is not applicable during normal plant conditions, which have a small controlled range of temperature and humidity conditions, and there is no effect applicable as noted below:
e3IRn = 0 11.10.10 Total Non-Random Error (Ee3n)
The total non-random error for the MTU under normal operating conditions is determined below.
Ee3n = s(e3Hn + e3Rn + e3Sn + e3SPn + e3Pn + e3Vn + e3pn
+ e31nn + e3IRn)
= (0 + 0 + 0 + 0 + 0 + 0 + 0 + 0.0008 Vdc + 0)
=$ 0.0008 Vdc l I REVISION NO. 0
Exhibh E NEP.1242 R;vi:lon 5 COMMONWEALTH EDISON COMPANY j l CALCULATION NO. L-001443 PAGE -49 of 53 9 11.11 Non-Random Errors for Accident Operation (Ee3a) 11,11.1 Humidity Error (e3Ha)
There are no, humidity related errors describud in ths vendor's specifjcations for this device. Based on assumption 5.4, humidity effects associated with the MTU are inc.luded in the repeatability error. Therefore:
e3Ha = 0 11.11.2 Radiation Error (e3Ra)
Based on Reference 3.5, the radiation level within the MTU envi-3 ronment during accident plant conditions is < 1 x 10 RADS TID.
' From Reference 3.8, the cccuracy of the MTU will remain within its 5
stated repeatebility within radiation levels s 1 x 10 RADS TID.
Therefore:
e3Ra = 0
} 11.11.3 Seismic Error (e3Sa)
From Section 8.2, and Reference 3.16, the MTU will remain within its stated repeatability when subjected to seismic vibrations with a ZPA of 1.17 g OBE and 1.75 g SSE, Which is well above the station guidelines of 0.029. Therefore:
e3Sa = 0 11.11.4 Static Pressure Error (e3 spa)
The MTU ir an electrical device and as such is not affected by static pressure changes. Therefore:
e3 spa = 0 11.11.5 Pressure Error (e3Pa)
The MTU is an electrical device and as such is not affected by ambient pressure changes. Therefore:
e3Pa = 0 11.11.6 Power Supply Error (e3Va) e There are no power supply variation effects stated in the vendor's specifications for this device. Based on Assumption 5.2, error REVISION NO. O
Exh*2hE NEP 1242 R:viin 5 COMMONWEALTH EDlSON COMPANY CALCULATION NO. L-001443 PAGE 50 of 53 effects associated with power supply fluctuations are included in the repeatability error. TLerefore:
e3Va = 0 11.11.7 Process Error (e3pa) .
Ths MTU is an electrical device and as such is not affected by process errors. Therefore:
e3pa = 0 11.11.8 Non Random Input Error (e3ina)
The non-random error present at the input to the trip unit, Ee2a, is due to the transmitter ar.d was calculated in Section 11.7.7:
e31na = Ee2a e3ina = i 0,546208 mA Convert e3 inn from 4 to 20mA to 1 to 5 Vdc by multiplying with j 2500 resistor,
)
e3ina =2 (0.546208 mA) * (2500)
=1 0.136552 Vdc 11.11.9 Insulation Resistance Error (e3 ira)
Per References 3.18 and 3.19, the insulation resistance error is considered negligible with respect to other error terms, Therefore, e3 ira = 0 11.11.10 Total Non-Random Error (Ee3a)
The total non-random error for the MTU under accident operating conditions is determined below.
Ee3a = (e3Ha + e3Ra + e3Sa + e3 spa + e3Pa + e3Va + e3pa + e3ina
+ e3 ira)
= (0 + 0 + 0 + 0 + 0 + 0 + 0 + 0.136552 Vdc + 0)
Ee3a =t 0.136552 Vdc l I REVISION NO. O
Exhibit E NEP42-02 R;vh,i:n S COMMONWEALTH EDISON COMPANY
] CALCULATION NO. L-001443 PAGE 51 of 53 ,
12.0 TOTAL ERROR. NORMAL QPERATING AND ACCIDENT CONDITIONS (TE3)
Per Reference 3.2 methodology, the total error is defined as; TE3 = 2 * (o3 ) + Ee3 where: 03 = total randon error Ec3 e total non-random error 32.1 Total Error, Normal Operating Conditions (TE3n)
From Section 11.8.7, c3n = 2 0.138403 Vdc From Section 11.10.10, Ee3n = t 0.0008 Vdc TE3n = s (2 e 0.138497 Vdc) + 0.0008 Vdc
= 2 0.277794 Vdc (2c]
Converting Total error (TE3n) in to process error (GPM),
Per Section 10.0, O to 700 GPM corresponds to 4 to 20 mA, which converts to 1 to 5 Vdc signal input to trip unit. Therefore, the
{ }
transfer function of the trip unit can be written as, T= (700 GPM/ 4 Vdc) (dP - 0) + 1 Vdc The partial derivative of T with respect to dP yields:
6T/6dP = (700 GPM/4 Vdc) = 175 GPM/ Vdc TE3n = 2 (0.277794 Vdc) + (175 GPM/Vdc)
= r 48.61395 GPM = 1 50 GPM [2c]
12.2 Total Error, Accident Conditions (TE3a)
From Section 11.9.7 c3a = 1 0.157457 Vdc From Section 11.11.10, Ee3a = 1 0.136552 Vdc TE3a =i (2
- 0.157476 Vdc) + 0.136552 Vdc l
=2 0.451504 Vdc (2c]
Converting Total error (TE3a) in to process error (GPM),
TE3a = r (0.451504 Vdc)+(175 GPM/Vdc)
=2 79.0132 = + 80 GPM [2c]
REVISION NO. O
Exhibit E '
NEP.12-02 R; vision S COMMONWEALTH EDISON COMPANY O CALCULATION NC. L-001443 PAGE 52 of 53 ,
13.0 ERROR ANALYSIS 13.1 DETERMINATION OF ALLOWABLE VALUE AND NOMINAL TRIP SETPOINT.
From Section 10.0, Analytical Limit (AL) = 600' GPM 13.2 DETERMINATION OF NOMINAL TRIP SETPOINT (NTSP)
From Section .1.2.2, total error TE3a = 2 80 GPM For conservatism, an additional margin of 21% of AL will be added for the determination of the setpoint.
MAR = 2 (0.01) (600 GPM) =2 6 GPM From Reference 3.2, the nominal trip setpoint is calculated for the actuation on a increasing process parameter is given as, NTSP = AL - (TE3a + MAR)
{ } = 600 GPM - [80 GPM + 6 GPM]
= 514 GPM, This value be rounded down to 500 GPM 13.3 DETERMINATION OF ALLOWABLE VALUE (AV)
From Section 12.1, total error TE3n = 2 50 GPM From Reference 3.2, the allowable value is calculated for the actuation on a increasing process parameter is given as, AV = (NTSP + TE3n)
= (500 GPM + 50 GPM)
= 550 GPM
_c .
ExhENE NEP.12-02 R; vision 5 COMMONWEALTH EDISON COMPANY
'" CALCULATION NO. L-001443 PAGE 53 of 53 .
14.0 ERROB_ ANALYSIS
SUMMARY
AND CONCLUSIONS This calculation determined the allowable value (AV) and the Nominal Trip Setpoint (NTSP) for the Reactor Water Clean up system high flow break detection isolation.
The setpoint and allowable value are determined based on the Analytical limit of 600 GPM. The setpofnt of 500 GPM, and an Allowable Value of 550 GPM provides'95'/95 assurances that it will not exceed design and licensing bases.
The acceptance criteria, as defined in Section 2.2, has been met.
This calculation indicates with a high degree of confidence, for the following instruments, that the Tech Spec LCO (Allowable Value) and Analytical Limit will not be exceeded under accident and normal conditions respectively, when the transmitter / trip unit are calibrated to the new determined setpoint, and using the test equipment specified in Section 9.0.
1G33-N041A,B 1G33-N609A,B l ) THE INSTRUMENT MAINTENANCE DEPARTMENT SHOULD DEVELOP A PROCEDURE TO ACCOUNT FOR HIGH LINE STATIC PRESSURE F"FECT. THIS CALCULATION IS PREPARED WITH A PROCESS RANGE OF 0 TO K) GPM CORRESPONDING TO A DP OF 0 TO 200" W.C. THIS RANGE DOES NOT ACCOUNT FOR HIGH LINE PRESSURE EFFECT. THIS SETTING TOLERANCE FOR THE TRANSMITTER SHOULD BE 0.02 Vde, and THE MASTER TRIP UNIT SHOULD BE 0.012 Vdc.
[ FINAL) i I REVISION NO. 0 1
jQ . / L u~ ao d#*d'x L ooM3, RECORD OF TELEPilONE CONVERSATION Rev.e Date _ 09/09/94 O Between Vikram Shah Signals & Safeguards and of B. Bellovec CECO.
of Telephone 815-357-6761. Ext. 2673 Subject Calibration of Rosemount Transmitters and the Span & 2ero Adiustment For 12Salle Station. Station 1mRalle Station Units I and 2 Memorandum:
I explained to Mr. Bejlovec the purpose of my call. I asked him if the ULSalle Instrument Mechanic Department have been instructed to chaeck the zero and span adjustment at he time of the calibration.
Answer Mr.Bejlovec has stated that it is a general practice that every rosemount transmitters are check for the static and span correction at the time of the calibration. They have been asked to follow the manufacturer's instruction to perform the adjustment on the span & zero adjustment.
O l'
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.7une 24, 1991 l gwewhmE # w * .(~
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m s r .s, "Asa Mr. Ed Kaczmorski ! ,, , Igg y
. Commonwealth Edison Co. "'
Nuclear Engineering 7)'ecJ.Jtr-#Y3/
1400 OPUS Place, Suite 400 Downers Grove, IL , 60515 ,
Re Pressure Transmitter Performance Specifications
Dear Mr. Kaosmorski,
Per your request, the following information is forwarded to clarify the performance specifications of Rosemount commercial grade and nuclear qualified instrumentation. .
Nuclear Oualified Instrumentatient Rosemount Nuclear Qualified instrumentation applicable to commonwealth Edison Plants are the Model 1152, 1153 Series B, 1153 series D, 1154 and 1154 Series H Pressure O', Transmitterst Model 353C conduit Seals; and the Model 710DU Trip / Calibration System. The specifications referenced in g
'. Rosemount literature are separated into ' Nuclear specifications' which' include the DBE simulation and
' Performance Specifications' which include transmitter performance under plant rsterence conditions.
The $ Nuclear Specifications' which include Radiation, Seismic, LOCA/HELB, and Post DBE are derived from the Type Testing completed on each model type. Due-to the limited sample size in the Type Tests these specifications are based on worst casa errors plu,s margin as referenced ~in-IEEE 323-1974 (1983). For most practical purposes, these specifications are considered 2-sigma. (Two standard ,
deviations). ,,
The ' Performance Specifications' are determined In from testing addition, completed on large samples of each model type.
all. manuf actured units are tested to insure meeting published specifications prior to shipment. Therefore, these specifications are considered 3-sigma. (Three J standard deviations).
! There is one exception to this rule. The Point Drift I l /- Specification of 1 20% URL for 24 Months which replaces the
- i
( Stability specification of +/=.25% URL for 6 months for all nuclear transmitters is considered to be 2-sigma based on l
. g. .the sample size used during testing. ,
c - - - - - - -
- 9. . 81 . . .;.., , ., .,.s. . , . ., . ., . . . . .... .. ,
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. 4tm tunn m one teen Pfeift WN 88344 U.8.A.
O Page 2 of 2 -
Commercial Ctada Instrumentatient The specifications published for Rosemount commercial grade instrumentations are considered to be 3-sigma. All Model 1151 Transmitters, 444 Temperature Transmittars and related -
hardware specifications were based en testing of very large sample sizes. In addition, most all specifications are verified during manufacturing of the instruments.
I for both~ Nuclear and
' Specifications commercial Grade written as +/ ion implies random uncertainty instrumentat
> allowances within the specification band. These specifications are normally distributed for most prgetical purposes.
We anticipate this information will assist you in the 1nterpretation of Rosamount specifications. If we can be of further assistance, please do'not hesitate to contact us.
l N
l Sinceraly, .
i Timothy J. r !
Marketing Enginac Rosemount Nuclear Products !
cci N. Hyrniw #7 TJL i
no 9
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._~ . _ _ _ _ _ . _ _ . _ _ . _ _ _
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STATIC PRESSURE EFFECTS 6~3 ON ROSEMOUNT NUCLEAR TRANSMITTERS To obtain the highest accuracy flow and pressure measurements an understanding of the effects of high stabc pressure is needed. The purpose of this data sheet is to explain the effects of high statsc pressure oa Rosemount nuclear pressure transmitters, Static pressure affects the 6-ce# in two different and independent ways. These effects are known I as the zero eff ect and the span eff ect.
The first effect occurs with zero input differenbal to the cell. In this case, the effect of the stabc pressure on both the high and low side tend to cancel each other. The slight remaining shift in output is ca' led the static pressure effect on zero or zero effect. While the maximum magnitude of the zero effect is predictable, its direction is not. However, the effect is repeatable for an individual transmitter and can be eliminated by simply Ie-Zeroing the transmitter at hne pressurt To understand the second effect of static pressure, called the span effect, it is necessary to understand l theinnerworkingsof the 6 ce#,
I The 6 ce# is a vanable capacitance device, in the cell, differential pressure moves the sensing diaphragm between two fixed capacitor plates. See Figure 1. The varying capacitance between the sensing diaphragm and the plates is converted electronically to a 4 20 mA dc output that it is directly proportional to the differential pressure, in the actual cell design the sensing diaphragm is stretched between the fixed plates and welded tothe cylindricalbodyof the cell. ,
When high pressure is app'ied to both sides of the cell a shght deformation takes place, increasing tension radia:!y in the sensing caaphragm. See Figure 2. The net effect of the increased tension is that the sensing diaphragm m:'ves away from its nearer wall or capacitor plate, (this only happens at pressures other than zero differential pressure). As the static pressure increases, the tension increases causing a greater movement of the diaphragm. The movement of the diaphragm is always toward the zero differential pressure, or cohter position. With this in mind you can see the effect is to decrease output as static pressure is increased. In other words as static pressure increases. a slightly higher differenhal pressure is required to move the sensing diaphragm a given amount.
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When zero b elev led, cr a higher prissur] b applied to the low side th:n to the high sido, the effect is to incre:se output as static pressura increases. This b c;sier to understand if you remember that in an elevated zero situation the position of the diaphragm at 4 mA is to the left of center. Note Figure 2. As process differential pressure increases, the diaphragm moves back toward the center position. The radial tension created by the static pressure causes the diaphragm to move even closer L to the center positon, thus incre asing output.
The shift is called the static pressure effect on span or span effect, and is systematic or predictable.
repeatable, and linear. Because the effect is systematic it can be calibrated out for any grven static pressure and ca'ibrated span. Testing done at Rosemount Inc., using a DeGranges differential dead-weight tester, and by others has confirmed the correction factors Rosemount Inc. specifies. There is an uncertainty associated with the correction, but this uncertainty is typical!y less than the published specifcationof 0.5%of readingper1000 psi.
SPAN CORRECTION SAMPLE PROCEDURE The following is an example of how to correct for the effect of static pressure. The correction procedure uses the case of a Range Code 5 calibrated -100 inh2 O to + 300 inh 2O with 1200 psiline pressure.
Note that steps 2 5 are omitted for ranges based at zero differential pressure. From the instruction manual, the correction factor for Range Code 5 is 0.75% of input per 1000 psi static pressure. To start, use the standard calibration procedures to calibrate the unit so that its output is 4 mA at -100 in. and 20 mA at +300 inh 0. 2 Then use the following procedure to correct for the static pressure effect.
- 1. Calculatecorrectionfactor:
0.75%/1000 psi x 1200 psi = 0.9%of differentialpressureinput.
- 2. Calculate 4 mA or zero point adjustment correction
- in terms of pressure: 0.9% of -100 inh2 O
= -0.9 inh 0.
- 3. Convert zero point correction from pressure to percent of input span: -0.9 inh 0/400 2 in. input l span = -0.225% span.
- 4. Calculate zero point correction in terms of output span (mA): -0.225% of 16 mA span = -0.036 l
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- 5. Arithmetically add zero correction to ideal zero output (4 mA). This is the corrected ideal zero output. 4.00 mA - 0.036 = 3.964 mA.
- 6. Calculate full scale or 20 mA point adjustment correction in terms of pressure: 0.9% of 300 inh2O
= 2.7 inh2 0.
- 7. Repeatstep3withtheresuitsof step 6: 2.7in.per400in.inputspan = 0.675% span.
- 8. Repeatstep4usingtheresultof step 7: 0.675%of16mA = 0.108mA.
- 9. Anthmetically add full scale correction to ideal full scale output (20 mA). This is the corrected idealfullscaleoutput: 20.00 mA + 0.108 = 20.108 mA.
- 10. Readjust zero and span adjustments for corrected outputs:
3.964 mA at - 100 inh 0 20.108 mA at + 300 inh2 O ZERO CORRECTION The static pressure zero effect can be inmmed out after installation with the unit at operating pressure.
Equalize pressure to both procesa connections, and tum the zero adjustment until the ideal output at zero differential input is observed. Do not readjust the span pot. This completely eliminates the zero effect of line pressure. Please note that re zeroing the transmitter will shift a!! of the calibration points the same amount toward the co rect reading.
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b STATIC PRESSURE EFF5 CTS ON ROSEMOUNT NUCLEAR TRAHSM'7TERS ZERO EFFECT CORRECTION PROCEOURE fTN j
The zero offect (or zero shift; associated with a static line presst,te applied to a differential transmitter w repeatable for a grven transmater, and can be eliminated by simply re zeroing the transmmer at hne pressu DP across the unit.
N however the transmitter does not include zero DP within ha calbrated span, the zero eff ect or zero corre be determined before the unit is suppressed or elevated to ofwninate the zero effect after correcting for the s effect.
The lotlowing procedure Niustrates how to eliminate the zero effed for a non zero DP based calib uses a Range Code 5 calibrated 1002 inh O to 500 2 bH O wth 1200 pel static line prosaure.
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- 1. Using standard calbration procedures calbrate the unk to the required span, wth the 4 mA or corresponding to zero DP: ,
4 mA at 0 inh2O and 20 mA at 400 inh2 O
- 2. Apply static pressure to both H and L proossa connections with zero DP across the transm zero correction (zero shift). For example,if the output roads 4.006 mA, the zero corredion is calcula 4.00 rnA - 4.006 mA . 0.006 inA Note the sign ammar4ated wth this corredion as this result wiu be algebraically added when dete final, ideal transmitter output.
3.
Remove static pressure and correct for the span effect by following the procedures as outlined in the l transmitter instruction manisal. Recalbrate the unM to the calculated output values. N, for example, thl corredion procedure yielded 4.029 mA and 20.144 mA, calbrate the una for:
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' 4.029 mA at 100 inh2O 20.144 mA at 500 inh2O
- 4. Next, algebraically add the zero corredion found in Step 2 ( 0.006 mA) to the ideal zero point value calculated in Step 3.
4.029 mA + (-0.006 mA) = 4.023 mA 5.
To eliminate the zero effect, readjust only the zero pot so that the cuput roads the ideal zero poi(
In Step 4 (do not readjust the span pot). Note that as the casbration points wiu shllt the sam the correa reading.The example output is now 4.023 mA at 100 inh2 0.
The transmitter output will now be 4-20 mA over ks calbrated span when the unit is operated at Ene pressue. There is an uncertainty namented with the span correction, but this is typically published specification of i 0.5% of reading per 1000 pol. ,
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Rosemountinc. PHON.:letz)e4146s0 TEXX:4310004.4310012 CAaLE:Pn 715 7 cRosemount Inc.'.1987 i
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Of Bechtel By Neil Archambo To Tim Layer Of ,Rosemount Date June 16, 1993 Time 10:00 am Job No. N/A Subject Rosemount Model 710D0 Trip / _
File No. N/A Calibration Unit Specifications -. ,
m Mr. Layer was contacted in order to clarify the specifications listed in the Rosemount Trip / Calibration Sptem Model 710DU Operations Manual.
Clarification was required for the following:
- Master Trip Unit (MTU)
Analog Outpuu Accuracy (N >rmal Conditions)
Trip Output Repeatability (Normal Conditions)
- Slave Trip Unit (STU)
Trip Output Repeatability (Normal Conditions)
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O - Calibration Unit Accuracy .
The equation listed for the MTU Analog output Accuracy is as follows:
iO.15% ,(60' to 90'F) 10.35%/100*F According to Mr. Layer, the above equation is to be used in the following manner:
to 90'F,
- For ambient temperatures in the range of 60' Analog Output Accuracy = 0.15%(SPAN)
- For ambient temperatures above 90*F, Analog Output Accuracy = 1(0.15%(SPAN) ( 0. 35%) (SPAN) /100
- F) ( AT) )
Where: AT = Ambient Temperature - 90*F
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Q)- For example, suppose the ambient temperature at the trip unit location is
- 120*F. The associated trip unit analog output accuracy would be:
Analog Output Accuracy = t(0.15%(SPAN) + (0. 35%) (SPAN) /100
- F) ( AT) )
Analog Output Accuracy = t(0.15%(4 Vdc) + (0.35%) (4 Vdc) /100'F) (30'F))
' Analog Output Accuracy = 10.0102 Vdc The trip output repeatability tor both the MTU and STU is calculated in the, manner listed above.. The equations are clarified below for ambient
. temperatures above 90*F:
MTU Trip Output Repeatability (MTUron):
MTUroa = (0.13%(SPAN) + (0.2%) (SPAN) /100*F) (AT))
STU Trip Output Repeatability (STUN >a):
STUron = (0.2% (SPAN) + (0.35%) (SPAN) /100*F) (AT))
In addition, Mr. Layer stated that the trip setpoint repeatability equations listed above include reference accuracy, temperature effects, and
! 'ft. The equations are accurate for 6 months. Based on calibration
.cedure DIS 1400-02, the. trip units are' calibrated every thr'ee months.
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l t N- however, Mr. Layer stated that the errors would not be reduced by calibrating more fruquently than 6 months.
The MTU and STU trip setpoints are calibrated using the calibration unit supplied with the Model 710DU. Mr. Layer stated that errors associated with the calibration unit are included in the repeatebility error equations listed above. Therefore, no additional error evaluations are required for the calibration of the MTU and STU.
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September 30,1993 Mr. Victor Shah Signals & Safegaurds
. 3375 N. Arlington Heights Road Suite C Arlington Heights, IL 60004
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Subj: Nuclear Qur.lified Instrumentation Confidence Levels Ref.: June 24,1991 Letter to E. Kazemarski of Commonwealth Edison Den Mr. Shaw, The above referenced letter directed to E. Kazemarski of Commonwealth Ediso issued to state the confidence levels of Rosemount nuclear qualified pressure transmitter and nuclear qualified trip / calibration system specifications.
As we discussed, one correction and one clarification to the information supplied in the
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letter is required.
The correction to the above referenced letter is that the Model 510DU and/or 710 Trip / Calibration System performance specifications should be considered a two sigma confidence specification. The reason is that the Trip Point Repeatability. Specification is a time based specification over a six month period. Since Rosemount does not test 100% o trip units over a six month period to verify compliance with the speciScation, and since qualification testing used a statistically small sample size, we cannot state a three-sigm confidence.
The clarification required involves the Model 1154 Series H Transmitter Ambient Tempenture Effect Specification. The Model 1154 Series H has two Ambient Temperature Effect Specifications as follows:
Three sigma:
(0.75% URL + 0.50% Span) per 100 F over the Range 40 to 200 F.
Two-sigma:
u 1(0.15% URL + 0.35% Span) per 50 F over the Range 40 to 130 F.
5 no i =. 7)-2.
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Performance Specifications i 09/30/93 Page 2 As we discussed, Rosemount issued a 10CFR21 notification alerting users of Model 11 Series H Transmitters that some units may not meet the two-sigma Ambient Temperature Effect Specification. All units met the three sigma specification. The 10CFR21 notification listed a interim specification which should be used until more detailed evaluation is completed by Rosemount. (Reference Notification dated May 27,1993). *
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The correct.ive action Rosemount . .is implement.mg m response to t production data for all transmitters shipped to determine; 1.0 Units meet the two-sigma specification 2.0 Units meet the interim specification 3.0 All DfE Production units (100%) will be tested to the two sigma specification, thus, resulting in a three-sigma confidence for new units ordered.
m The evaluation of data for units shipped to the LaSalle Station should be completed in t next two weeks. Results will be issued to Mr. Seckenger at LaSalle and CECO
- Engineering.
Sincerely,
/
Timothy .l. yer Sr. Marketing Engineer Rosemount Nuclear Products TJL/
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j - oc tuu3, pv.opms, & G-1 COMED NUCLEAR DESIGN INFORMATION TRANSMITTAL Q SAFETY.RELATED Ongmatmg Organesion NDIT No.: LAS-ENDIT 0636 C NON SAFETY RELATED Secten ICPED ,
Upgrade: 0 0 REGULATORY RELATED Company: Sargent & Lundy Page- 1 of 2 i
l Staten LaSabe County Units: 1 Systerrt To: Shah, vikrom. Comed, Desen Change Authonty No N/A RT Sumpet.
Setpoet with new flow tronomstier and tr> una in RWCU Recirc une Byskosh, Roman E.
Propect Engmeer
- [s-[, ,N, N 11/8/97 Flonen. 8tobert A Protect E;.gmeer / M, tw 11/8/E '
Oneutra. Vmod K.
Sener PW Engmeer M
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11/10/97 Status of information Approved for Use Unvenfied Verthcoton Method N/A Engmeeting Judgement Schedule:
i Purpose of leeuence Perform setpomt calculation to support the additen of RWCU hgh flow instrummentation in accordance with
( ,. DCP 9700532. ECNs 001368E (E'sSt) and 001369E (ESS2).
Source of informonen
- 1) Vendor Drawing (Spec. J2961) 739271, 21. Rev.1
- 2) UFSAR Secten 3, Table 3.11-25 (AEER), Figure 3.11 1 Table 3.116 (Rx Badg ), Figure 3.111,3.113 Description ofinformation
. The fonowng flow monitormg matruments are bemg added to improve the response time for detectmg and isolatmg a broek in the RWCU Rocarculebon une for EQ purposes Instrument Manufacturer Model No. Locehon Elec. Div, EQ Zone Transmstter Rosemount 1154 DH SR 1H22 P010 1 H4A (FT.1G33-N041 A) (Rx Bidg)
(Elev. 710'-67 (Col.14-E)
Master Tnp Rosemount 710 DU 1H13-P629 1 C1B Unit (AEER)
(FS-1G33-N609A)
Dietnbuuon. SEAC Jones, Gary C Sar & Lundy, Oilautta Vi .. . Sargent & Lundy,ICPED M P. . Comed, DE-E C Microfilmmg SAL Home Offke WIN No.: 2560
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g, COMED NUCLEAR DESIGN INFORMATION TRANSMITTAL
' O SAreTv RetATED originating org.nasten NDIT No.: LAS ENDIT-0536 O NON-SAFETY-RELATED Sectat ICPED - Upgrade: 0 0 ReoutATORv RetATeD Company- S.rgent & Lundy Page 2 of 2 Trenommer Rosemount 1154 DH SR LocaNy Mtd 2 H4A (FT 103M0418) nest to 1H22 P010 (Reador 8463)
Master Trip Rosemount 710 DU 1H13-P631 2 C1B lkat (AEER)
(FS-t o33-N6098)
+ The analybcal 6rr.A ::es teen set at 600 Opm et e.orma! cpersong inW prxess w#.tn The t ar.n k WS prm a t,tietect bge(flow ,
pnor to exceeding area EQ kn.as, but hgh enough to avoed sourous ar*ustens dunnr, system trws f7 f, gg godeg'.
Per sc,. na 1, the process celerated DP at 1020 PSIA & $33 Dog. F wdl be approxrnakY 0-200 in WC conosporw!g u a fion 010 -
700 gem The flow .maonng instrument loop wis be calibrated overy refuel yde, The instrument loop is considered safety roisted and has to t . operable following a essen besas accident.
The EQ zonce are established per Source 2.
OP @ Daate Flow is 101.62 in WC corresponding to 500 ppm. This does not include conec+w for high hne pressures.
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