ML20080E144
| ML20080E144 | |
| Person / Time | |
|---|---|
| Site: | Grand Gulf  |
| Issue date: | 01/26/1983 |
| From: | MISSISSIPPI POWER & LIGHT CO. |
| To: | |
| Shared Package | |
| ML20080E069 | List:
|
| References | |
| 08-S-04-904, 8-S-4-904, NUDOCS 8308300745 | |
| Download: ML20080E144 (37) | |
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< n PLANT OPERATIONS MANUAL m
9 Volume 08 08-S-04-904 Section 04 Revision: 1 Date 1-26-83 i
LHEMISTRY INSTRUCTION POST ACCIDENT MONITORINC SYSTEM (PAMS) OPERATIONS SAFETY RELATED l
Prepared: 84> > /I Yen _d _m_
Reviewed: - / , _
, Technical Review ' Ind(pendent gvNw /
Approved: . < - - , e Plant Cliemist
- l List of Effective Pages:
l Pages 1-33 Atts. I-III List of TCN's Incorporated:
Revision TCN No.
O None 1 None 8308300745 830925 PDR ADOCK 05000416 E PDR
GRAND GULF NUCLEAR STATION CHEMISTRY INSTRUCTION
Title:
Post Accident Monitoring No.: 08-S-04-904 Revision: 1 Page: 1
,q . System (PAMS) Operations 1.0 PURPOSE j
, The purpose of this instruction is to provide directions for calibrating, standardizing, and operating the Post Accident Monitoring System including grab sampling and on-line analyses.
2.0 REFERENCES
2.1 Technology for Energy Corporation; O & M Manual for TEC Post Accident Monitoring System (PAMS); November,1981 2.2 Technology for Energy Corporation; Instruction Manual for Coolant and Containment Chemical Sample System; December,1981 2.3 Ortec Operator's Manual; Analytical Sof tware for Nuclear Power Plant Germanium Detectors 2.4 Chemistry Instruction, 08-S-04-905, Post Accident Sampling / Analysis 2.5 Chemistry Procedure, 08-S-03-7, control of Chemistry Support Equipment 2.6 U.S. Nuclear Regulatory Guide (NUREG) 0578
( 3.0 DEFINITIONS 3.1 Post Accident Monitoring System (PAMS) - The system capable of drawidg and analyzing gas and liquid samples with activities as high as 10 Ci/mi from the following sources:
3.1.1 Containment atmosphere, gas 3.1.2 Drywell atmosphere, gas 3.1.3 Recirculation Loop B, liquid 3.1.4 Jet pump Line D, Liquid 3.1.5 RRR Loop A, Liquid 3.1.6 RHR Loop B, Liquid 3.1.7 Suppression pool, Liquid U
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GRAND GULF NUCLEAR STATION CHEMISTRY INSTRUCTION I
Title:
Post Accident Monitoring No.: 08-S-04-904 Revision: 1 Page: *2
- l System (PAMS) Operations .
- ) .3 3.2 Gamma Counting Subsystem (GCS) - Each GCS consist of a single Hyper pure Germanium (RPGe) detector, a spectroscopy amplifier, one segment of the multichannel analyzer (MCA), a collinator with 3 apertures, 3 checksources (one for each aperture), cables, a high voltage power supply for the detector, and all the valves used to control the collimator.
3.3 Channel - A channel consists of that portion of the hardware in the PAMS that is dedicated to the handling and radiological analysis of a single sample stream. There are four channels. They are; Unit 1 Gas, Unit 1 Liquid, Unit 2 Gas, and Unit 2 Liquid.
3.4 Target - A small cylindrical tank bolted onto the end of each colimator through which sample continously flows, but sample volume remains the s ame. It is from the target that gamma data is collected. There are three targets designated: One for Low Range Target, two for Mid Range, .
and three for High Range .
3.5 Task - A sequence of operations to be performed in a particular order.
There are 8 tasks, as follows: STARTUP, SHUTDOWN, FLUSH, BACKGROUND, CHECK SOURCE, SAMPLE IN-LET SELECT, RADIONUCLIDE ANALYSIS, AND SYSTEM EXCERCISE.
3.6 Function - An oper& tor request that alters the control panel display or the status of the PAMS. There are 16 functions, as follows: Display Count Race, Display Gross Activity, Display Target Temperature, Display -
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Targat Pressure, Set High Radiation Alarm Setpoint, Terminate Alarm
- Sequence Execution, Acknowledge Alarm, Print a System Status Report, Display a Currently Executing Task, Initiate a Control Panel Test, Reset an Operational Alarm, Take GCS Online or Offline, manually Open or Close a Valve, manually Turn On or Off a Pump, manually Open or Close an Aperture, and manually Insert / Withdraw A Check Source.
NOTE The last four manual functions can be requested only when the GCS or SHS is in an Off-line condition.
3.7 Task Queue - A list of tasks to be executed by the PAMS computer as the resources become available. Tasks are placed in the task queue via the operator control panel and are executed on a "first in/first out" bases.
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l GRAND GULF NUCLEAR STATION CHEMISTRY INSTRUCTION l
Title:
Post Accident Monitoring No.: 08-S-04-904 l Revision: 1 lPage: 3 System (PAMS) Operations 1 0~. :
3.8 Sample Handling Subsystem (SHS) - The SHS provides a continuously flowing sample stream taken from a selected inlet point (Steps 3.1.1 through 3.1.7) for analysis by both the GCS and the on-line chemical analyzers.
The SHS consists of the plumbing, valves, pumps, and three targets.
4.0 PREREQUISITES 4.1 Apparatus required 4.1.1 Gas and Liquid Sampling Casks 4.1.2 Lighweight Grab Sampling Device (s) 4.1.3 Combination pH/ reference electrode or a pH and a reference electrode ,
4.1.4 Chloride and reference electrode 4.1.5 pH/mV meter 4.1.6 Pipets, varous sizes
,... 4.1.7 Pipettor
(" 4.1.8 Beakers, 50,150, and 250 ml 4.1.9 Absorbent tissue 4.1.10 Plastic bags 4.1.11 Tape 4.1.12 "0" rings 4.1.13 120cc gas vials 4.1.14 Rubber Septas for 4.1.13 4.1.15 As per Chemistry Instructions: 08-S-04-104, 08-S-04-109, 08-S-04-316, and 08-S-04-319 \
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GRAND GULF NUCLEAR STATION CHEMISTRY INSTRUCTION
Title:
Post Accident Monitoring No.: 08-S-04-904 Revision: 1 Page: 4 System (PAMS) Operations .
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., 1 4.2 Reagents required as per Chemistry Instructions: 08-S-04-104, 08-S-04-109, 08-S-04-316, and 08-s-04-319.
4.3 ATTACHMENTS 4.3.1 Attachment I - Operator Control' Panel 4.3.2 Attachment II - Approximate MCA Channel Number vs. Energies and Sample Inlet Point Identification Numbers 4.3.3 Attachment III - Valve and Pump Identification Numbers -
5.0 PRECAUTIONS 5.1 As per Chemistry Instructions 08-S-04-104, 08-S-04-109, and 08-S-04-316, and 08-S-04-319.
5.2 When sample flow is established through the sampling cask or device, measure the dose rate and maintain distance as necessary to stinimize radiation exposure.
5.3 Notify the Operations ~ and the Health Physics departments of sampling intentions.
5.4 Wear anti-coatsmination clothing, respiratory protection devices and 'tuDe as directed by the Health Physics Department.
6.0 INSTRUCTIONS NOTE This instruction covers the normal system function checas, shutdown, calibration, startup, operation, and analyses. For unusual problems not covered by this procedure, refer to the respettive manufacturer's operating -
manuals.
NOTE At any point in this procedure where a task is neither desired or required, the operator may proceed or return to any section or step in this procedure to achieve the desired objective. The procedure includes the following sections:
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. GRAND CULF NUCLEAR STATION CHEMISTRY INSTRUCTION
Title:
Post Accident Monitoring No.: 08-S-04-904 Revision: 1 Page: 5
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- System (PAMS) Operations i
Gammma Counting Subsystem, 6.1 GCS Startup, 6.1.1 Panel test, 6.1.2 Channel Shutdown for Calibration, 6.1.3 Flush, 6.1.4 Target Data Collection, 6.1.5 l Energy calibration, 6.1.6 1
Efficiency calibration, 6.1.7 l
l Background Data Collection, 6.1.8 l Quality Assurance File Setup, 6.1.9 Channel Startup, 6.1.10
( GCS ON LINE/0FF LINE, 6.1.11
. Calibration Source Data Collection, 6.1.12 *
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Check Source (calib. source) Calibration, 6.1.13 System Exercise, 6.1.14
,. Collimator Test (OPEN/CLOSE), 6.1.15 Valve Test (OPEN/CLOSE), 6.1.16 Pump j Test (ON/0FF), 6.1.17 Sasple Inlet Select, 6.1.18 o
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GRAND C3LF NUCLEAR STATION' CHEMISTRY INSTRUCTION f
Title:
Post Accident Monitoring l No.: 08-S-04-904 Revision: 1l Page: 6 l System (PAMS) Operations l l l .
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Temperature Display, 6.1.19
. Pressure Display, 6.1.20 Status Print, 6.1.21 Alarm Set, 6.1.22 Alarm Acknowledge, 6.1.23 Alarm Reset, 6.1.24 Error Reset, 6.1.25 Automatic Task Sequencing, 6.1.26 Manual Background Check, Calibration Source Check and Online Grab Sample Analysis, 6.1.27 GCS Shutdown, 6.i.28 Sample Handling Subsystem, 6.2 Attaching the Shielded Sampling Cask, the Routine Sampling Device or the ]
In-line Saapling, and Analysis assembly, 6.2.1 .
Decontamination, 6.2.2 P.ydrogen Analyser Calibration, 6.2.3 Oxygen Analyzer Electrolytic Calibration, 6.2.4 0xygen Analyzer Alternate Calibration, 6.2.5 pH, Conductivity and Chloride Instrumentation Standardization and calibration, including electrode cleanup and "0" ring changeout, 6.2.6 Routine standardization and calibration of the pH, conductivity and chloride monitoring instrumentation, 6.2.7 Obtain a containment or dryvell atmosphere grab sample for an "On-Line" ,
and/or "In-Laboratory" hydrogen analysis, 6.2.8
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9 GRAND CULF NUCLEAR STATION CHEMISTRY INSTRUCTION
Title:
Post Accident Monitoring No.: 08-S-04-904 Revision: 1 Page: 7 System (PAMS) Operations i
Removing the shielded sampling cask or the routine sampling device or the ISAA from the sampling panel, 6.2.9 Obtain an off gas grab sample, 6.2.10 I
Obtain a high pressure undiluted grab sample, 6.2.11 Obtain a diluted (1000:1) grab sample, 6.2.12 Sample delivery and transfer, 6.3 6.1 Gamma Counting Subsystem (s) (GCS)
NOTE If functional checkouts, energy calibrations, efficiency calibrations ~ or set up of quality assurance files are not required, do 6.1.1.a through 6.1.1.e, if necessary, then proceed to section 6.1.26 for automatic performance of flushes, background checks, calibration source checks, quality assurance data transfer and analysis using the TASK QUEUE, or to section 6.1.27 for menual background checks, calibration source checks and on-line analyses.
6.1.1 PAMS Startup l
- a. On GCS Control Panel (P003), turn the System Power switch'to "0N".
- b. Set the Run/ Load switch to "RUN".
NorrE When the disc is lomoed, the Ready light will illuminate and a dollar ($) sign will be printed out by the line printer.
- c. Using the line printer, type DK and presa the Return key, then enter the correct time as requested at the printer,
- d. Da Panel P003, press the STARTUP keypad.
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GRAND GULF NUCLEAR STATION CHEMISTRY INSTRUCTION l
Title:
Post Accident Monitoring No.: 05-5-04-904 l Revision: 1 Page: 5 l System (PAMS) Operations l i i
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- e. Press the ENTER keypad.
6.1.2 Panel Test
- a. When it is believed that a status light or a display may be burned out, press the PANEL TEST keypad. (See Attachment I, Operator Control Panel.) All of the panel displays should briefly flash 0000000000 through 999999999.
6.1'3 PAMS Shutdown
- a. Select the desired channel that is to be chutdown by pressing the desired keypad, the shutdown keypad, followed by the ENTER keypad, then ACK keypad.
- b. Observe data printout on the line printer.
6.1.4 Flush
- a. Select desired channel, press the FLUSH keypad, the ENTER keypad, then enter the number of minutes to flush, followed by pressing the ENTER keyped again.
6.1.5 Target Data Collection ,
- a. Select the desired channel at the Control Panel (P003). At the printer type "RUN CR n ACQ" <CR>, where a represents the channel number.
6.1.6 Energy Calibration NOTE When <CR> alone is used, that which is displayed will be accepted or acted upon,
- s. With Unit n gas or liquid selected, and using the line printer, type CLB <CR>.
- b. Answer the line printer prompt with:
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GRAND, GULF , NUCLEAR STATION CHEMISTRY INSTRUCTION
Title:
Post Accident Monitoring No.: 08-S-04-904 , Revision: 1( Page: 9 (a System (PAMS) Operations l l
1 (1) 1 for low range target '
(2) 2 for mid-range target (if used)
(3) 3 for high range target (if used)
- c. Enter the description of the calibration. For example, LOW RANGE (or MID RANGE or HIGH RANGE if used) APERTURE / TARGET CALIB. ON UNIT-1 GAS (or LIQUID) CALIBRATION PERFORMED BY (name of operator) on DD-MMM-YY. I
- d. As dialog continues, reply to the line printer prompts with appropriate answers. '
- e. Enter Channel Numbers vs. Energies (KEV) obtained in Step 6.1.5.b.
- f. After each channel vs energy pair, type D to delete, C to change or press the RETURN key to accept.
6.1.7 Efficiency Calibration I
/ a. Answer prompts with Y for "YES", N or "NO" or <CR> as applicable, and enter the number of the detector used in Section 6.1.5, Target Data Collection. ,
- b. Answer " ACTIVITY IN MICR0 CURIES" or " GAMMAS /SEC" with M and
<CR> or simply <CR> for microcuries or G (CR> for gammas.
- c. If the full library is not to be used, answer prompt with N, i
- d. Enter the NUCLIDE, ACTIVITY (EX. Ba-133, 1.09) for all of the major nuclides measured.
- e. Answer the dialog that follows with <CR> or N <CR> as applicable, to complete the calibration of the first target.
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GRAND GULF NUCLEAR STATION CHEMISTRY INSTRUCTION
Title:
Post Accident Monitoring No.: 08-S-04-904 Revision: 1 Page: 10 System (PAMS) Operatiens '
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- g. Enter the name of the calibration data file that contains the energy calibration (CR 1 LR or CH 2 LR/CH 3 HR if either were used).
- h. Respond with an N to all questions pertaining to changing the energy calibration, unless actual change is desired.
NOTE If change is desired, repeat Section 6.1.6.
- i. To complete the efficiency calibrations for the remaining targets, repeat Steps 6.1.7.a through 6.1.7.1.
6.1.8 Background Data Collection
- a. Press the BACKCND keypad.
- b. Press the TASK QUEUE keypad.
- c. Enter the target ID Using the numerical keypad as follows:
(1) 1 = low range (2) 2 = Mid range ,)
(3) 3 = High Range, or (4) 0 = target which correspends to the collimator setting at the time this task is executed.
- d. Press the EE!ER Vey,
- e. Enter the length of counting time af ter "T = ", using the numerical keypad.
NOTE A 60 minute count time for each target is recommended,
- f. Press the ENTER key.
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GRAND GULF NUCLEAR STATION CHEMISTRY INSTRUCTION
Title:
Post Accident Monitoring No.: 08-S-04-904 Revision: 1 Page: 11
- System (PAMS) Operations i
NOTE The appropriate acceptance message will be displayed briefly.
6.1.9 Quality Assurance (QA) File Setup j
- a. Calibration Source Comparison Table (1) Type TEL.
(2) Type HELP after " FUNCTION".
(3) Type B after next function prompt.
NOTE The choices are; B to build, P to Print, E to edit and control ( ) z to terminate.
(4) Enter CK 1 LR after " FILE SPECIFICATION OF NEW TABLE".
l (5) Respond to the continuing " prompts" in the following
- l. order with the appropriate information:
NOT'E Values encered may vary as required.
(a) How many columns (4): 1, (b) Column Title ( ): STD RATIO (c) Column Units ( ): MICR0 CURIES (d) Nuclide Name ( ):
(e) Nuclide Value 1 (C.0000): (KEV)
(f) Okay (Y):
(g) Nuclide name ( ):
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- CRAND GULF NUCLEAR STATION CHEMISTRY INSTRUCTION
Title:
Post Accident Monitoring No.: 08-S-04-904 Revision: 1 Page: 12 System (PAMS) Operations .
(h) Repeat Steps 6.1.9.a (4) through 6.1.9.a (5) (g) for the mid range (CHK 1 MR) and the high range (CHK 1
, HR) sources.
(2) Type: CHANNEL UNIT-1 GAS. <CR>
(3) Type: LOW RANGE CHECK SOURCE QA FILE SETUP. <C R>
(4) Type: LOW RANGE CHECK SOURCE QA FILE SETUP. (CR>
(5) Type: P1P LB: [300,300] 000001. QAF; */DE. <CR>
(6) Type: Pl? = (5, 1) CHK 1 LR. CLB <CR)
(7) Type: QAI <CR)
(8) Answer the continuing prompts as follows:
NOTE Entries may vary. ,
(a) MCA NUMBER (0): 0 (always 0) <CR)
(b) SEGMENT NUMBER (1): 1 (same as PAMS Channel No.)
(c) CALIBRATION FILESPECS ( ): CHK 1 LR NOTE The following is printed:
ERROR BAR LIMITS ENTRY ERROR BAR LIMIT RANGES ARE 0.0 to 1.0000****
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GRAND GULF NUCLEAR STATION CHEMISTRY INSTRUCTION
Title:
Post Accident Monitoring No.: 08-5-04-904 Revision: 1 Page: 13 System (PAMS) Operations 9
(9) Using the example below as a guide, respond to the continuing dialog with the appropriate input:
EXAMPLE DELTA RECOVERY (0.000E-01): .05 FWHM (0.000E-01): 35 FOURTH QUARTER (0.000E-01): .05 TIM FOURTH QUARTER DISPLAY MODE OPTIONS ARE:
1 1-FWTM/FWHW RATIO 2-PEAK TO COMPTION RATIO Type "1" FOR FWrM/FWHM, "2" FOR PEAK TO COMPTION Type MODE (1): 1 Type CHANNEL PEAK IS IN (0): T6IT DO YOU WANT 1, 2, or 3 SIGMA ERROR BARS?
(1): 1 Type SCALE FACTOR (0.000E-01): M g OPERATOR ENTRT VALUES:
l DELTA RECOVERY (2ND QUARTER): 0.0500 FWHM (3RD QUARTER): 0.0500 FWIN/FWHM (4TH QUARTER): 0.0500 '
PEAK CHANNEL: 2663 SIGMA SELECTION: 1 SCALE FACTOR: 12.5000 l
ARE ALL ENTRYS CORRECr: (N): Y <CR)
(10) Type: MID RANCE CHECK SOURCE QA RESULTS FILE SETUP.
(11) Repeat Step 6.1.9.b(5) through 6.1.9.b(9), entering CHK 2 ~
MR where applicable, for the aid range check (calibration) source.
(12) Type: HIGH RANGE CHECK SOURCE QA RESULTS FILE SETUP.
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Post Accident Monitoring No.: 08-S-04-904 Revision: 1 Page: ' 14 System (PAMS) Operations
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9 (13) Repeat Steps 6.1.9.b(5) through 6.1.9.b(9) entering CHK 3 HR where applicable for the high range check (calibration) source.
6.1.10 SHS Startup
- a. Complete Step 6.1.1.
- b. Select desired channel. "
- c. - Press the STARTUP keypad.
- d. Press the ENTER keypad.
6.1.11 GCS ONLINE/0FFLINE To place the GCS on line or off line, press the ONLINE/OFFLINE Keypad.
6.1.12 Check Source Data Collection
- a. Press the CHECK SOURCE keypad.
- b. Press the TASK QUEUE keypad.
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- c. Enter the ID number for the desired checksource (0 = Current, 1 = Low Range, 2 = Mid Range, 3 = High Range) using the numberical keypad.
- d. Press the ENTER key.
- e. Enter the desired counting time (minutes) after T = using the numerical keypad,
- f. Press the ENTER key.
6.1.13 Check Source (calib. source) calibration The check source (calibration source 6.1.12) calibration is performed using the same program (CLB) that was used to calibrate the targets. The calibration program will be executed for each check source (low, mid, and high range).
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Post Accident Monitoring l No.: 05-5-04-904 l Revision:
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1 lPage: 15 l System (PAMS) Operations l l l l 9
- a. Type CLB <CR).
- b. Answer the line printer with:
(1) CHK 1 LR for the low range target (2) CiK 2 MR for the mid range target, and (3) CHK 3 HR for the high range target
- c. Enter the description of the calibration, operators name and date (DD-MMM-YY) .
- d. Respond to the continuing dialog with appropriate input.
6.1.14 System Exercise NOTE l l
The SYSTEM EEERCISE task executes a sequence of operations to determine the functionality of various components of the PAMS.
The operator may specify the number of passes that the SYSTEM EXERCISE task is to periorm. Each pass will test; The PAMS controller (memory and disk), the Ortec MCA (appropriat, channel's ability to store and transmit data), and the collimator (aperture and check source drive control).
- a. Press the SYSTEM EXER key.
- b. Press the ENTER key,
- c. Enter the number of passes desired after the " PASSES" =
prompt.
- d. Press the ENTER keypad.
6.1.15 Collimator Test (OPEN/CLOSE)
GRAND GULF NUCLEAR STATION CHEMISTRY INSTRUCTION
Title:
Post Accident Monitoring No.: 08-S-04-904 Revision: 1 Page: 16 System (PAMS) Operations .
NOTE Any of the three apertures on the collimator of the currently selected channel of the PAMS system may be manually operated by utilizing the COLLIM TEST function, however, the PAM channel, must be off-line.
- a. PRESS the COLLIM TEST keypad.
NOTE The control panel displays will flash.
ElfrER APERTURE ID (upper display)
ID# (lower display)
- b. Enter the apperture ID (1 = low range, 2 = nid range, and 3 =
high range) using the numberical keypad.
- c. Terminate each input by pressing the ENTER key.
- d. Answer the' following with' the desire response:
ENTER-CMD OPEN/CLOSE (upper display)
CMD = (lower display) 6.1.16 Valve Test (OPEN/CLOSE)
NOTE PAMS channel aust be off-line.
- a. Depress the VALVE TEST keypad.
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The panel will display:
ENTER VALVE ID (upper display)
VLV-ID# (lower display)
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l GRAND GULF NUCLEAR STATION CHEMISTRY INSTRUCTION
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Post Accident Monitoring No.; 08-S-04-904 Revision: 1 Page: 17 w System (PANS) Operations i
- b. Enter the valve identification number corresponding to the desired valve and depress the ENTER key (See Attachment III, Part A.)
NO _TE The panel will display:
ENTER VALVE POSITION OPEN/CLOSE (upper display)
POS = (lower display)
- c. Press either the ON/0 PEN or OFF/CLOSE keypad and depress the ENTER keypad to terminate input.
.NO,T1 The selected solenoid valve will now be actuated to the state selected.
6.1.17 Pump Test (ON/0FF)
FTl PAMS channel must be off-line.
- a. Depress the PUNP TEST keypad. '
- b. Enter the identification of the desired pump af ter the "PUNP IDf" prompt (See Attachment III, Part B) for a list of pump identifications).
- c. Press either the ON/0 PEN or CFF/CLOSE Kaypad and terminate the input by pressing the ENTER keypad.
6.1.18 Sample Inlet Select FT_E The SANPLE INLET SELECT task closes the presently open valve, purges the target for 60 seconds, opens the new valve that will be selected in Step 6.1.18.c, and turns on the circulation pumps.
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Post Accident Monitoring No.:. 08-S-04-904 Revision: 1 Page: 18 .
System (PAMS) Operations
- a. Press the SAMPLE INLET SELECT key.
- b. Press the ENTER key.
- c. Enter the Sample Inlet ID Number after the " INLET ="
prompt. (See Attachment II, Part B for ID numbers.)
- d. Press the ENTER key.
6.1.19 Temperature Display (for gas channels only)
Press the TEMP DISPLAY keypad.
NOTE The temperature is displayed as degrees Fahrenheit and will continue to be updated every 10 seconds until either an alarm occurs or the operator presses a control panel keypad.
6.1.20 Pressure Display (for gas channels only)
Obtain a pressure display by pressing the PRESS DISPIAY keypad.
NOT_E ,,
The PSI value will be displayed and updated every 10 seconds until ')
an alarm occurs or the operator presses a control panel keypad. a negative reading indicates loss of power, 6.1.21 Status Print To obtain a status print, depress the STATUS PRINT keypad or type STATUS <CR>.
6.1.22 Alarm Set
- a. Press the desired channel.
- b. Press the ALARM SET Keypad.
- c. Using the numerical keypad, enter the new setpoint, then press the ENTER keypad.
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GRAND CULF NUCLEAR STATION CHEMISTRY INSTRUCTION
Title:
Post Accident Monitoring No.: 08-S-04-904 l Revision: 1 Page: 19 s System (PAMS) Operations NOTE If a new setpoint was entered, the panel displays will flash:
NEW VALUE (upper display)
ACCEPTED (lower display)
- d. If the Operator wants to learn what the setpoint value is, but does not wish to change the setpoint, do Step 6.1.22.b and press the ENTER Keypad.
NOTE The following will be displayed:
OLD VALUE (upper display)
RETAINED (lower display) 6.1.23 Alarm Acknowledge Silence the audible alarm by pressing the ALARM ACKNOL keypad.
NOTE
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The ALARM ACKNOL function does not affect the status of any executing tasks. When pressed, the system will respond by .
silencing the audible alarm and writing the following erssage on the printer:
CHANNEL: Unit-1 GAS DATE: 8-SEP-81 i TIME: 11:22:13.0 ALARM QUIETED BY OPERATOR ACKNOWLEDGE 6.1.24 Alarm Reset S
When the ALARM RESET keypad is pressed af ter an alarm, all of the tasks of the alarm sequence will be aborted.
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Post Accident Monitoring l No.: 0d-5-04-904 l Revision: 1 lPage: 20 l l System (PAMS) Operations l l l l -
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- a. Press the ALARM RESET keypad.
NOTE If no radiation alarm sequence is in effect, the displays will briefly flash:
NO RADIATION (upper display)
ALARM 7?? (lower display) followed by:
REQUEST (upper. display)
CANCELED (lower display)
NOTE If an alarm sequence is in effect, the displays will contain; ALM RESET (upper display)
SURET (lower, display)
- b. If the decision is n'ade not to reset the alarm, press the ,
REQUEST CANCEL keypad.
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- c. If resetting is desired, press the ACK keypad ano enter the
- new value.
NOTE The following is an example of print out after the new value is entered:
CHANNEL: UNIT-1 CAS DATE: 25-JUNE-83 TIME: 11:44:42.8 ALARM SETPOINT CHANGED VIA OPERATOR REQUEST OLD SETPOINT: 0.0000000 UCI/CM3 NEW SETPOINT: 1.0000000 UCI/CM3
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Post Accident Monitoring No.: 08-S-04-904 l Revision: 1 Page: 21
. System (PAMS) Operations l l 9
6.1.25 Error Reset Press the ERROR RESET keypad.
NOTE The panel will respond by displaying; MP&L PAMS (upper display)
SYSTEM - RDY (lower display)
NOTE The error reset function will reset only operational alarms. The ALARM RESET function is used to reset the radiation alarm sequence.
6.1.26 Automatic Task Sequencing
- a. High Radiation Alarm Task Sequence (ALM)
(1) Establish the alarm setpoint for gross activity in
, microcuries per cubic centimetar as per Section 6.1.22.
N_OTE Eight tasks per task sequence may be programmed to occur following a high radiation alarm on a specified channel.
(2) Type ALM <CR), and setup the PAMS to flush, do a background check and perform an analysis on U-1 gas Lamediately following an actuation of the high radiation alarm using the following as an example.
(b) Enter Option: ADD -
(c) Enter channel number (1 through 4): 1 (d) Enter the number of tasks to be added: _jl ,
(e) Enter routine task name: FLU _SH (f) Enter desired flush time (in minutes): 15 (g) Enter routine task name: nACKGROUND p
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-)9 (h) Enter desired counting time (in minutes): 60
, (i) Enter routine task name: RADIATION ANALYSIS (j) Enter sample inlet ID number: 0 (k) Enter desired counting time (in minutes): 60 (3) Repeat Steps 6.1.26a(2)(b) through 6.1.26.a(2)(k) for the remaining channels.
(4) Answer the last prompt, " ENTER OPTION", with LIST, DELETE, or EXIT.
- b. Routine Task Sequencing (RTL)
(1) Type RTL <CR>.
(2) Using 6.1.26a(2)(b) through 6.1.26a(2)k as an example, set up the desired task list.
NOTE See Step 3.5 for a list of the eight tasks.
)
6.1.27 Radioanalysis (requested by Panel (Puu3))
- NOTE If a task is in progress, the function being requested in this section will be acted upon as soon as the system is available, or should the operator desire, he may stop the task in prograss by using the EXECUTE IMMED or the REQUEST CANCEL keypads to abort the task.
NOTE The EXECUTE IMMED or ENTER keypad may be used in step 6.1.27.c but using the TASK QUEUE allows the operator to set up all of the functions in this section in order that they may be performed sequentially and without further operator input.
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- a. Press the RAD keypad,
- b. Press the ENTER keypad and respond to the dialog that follows.
6.2 Sample Handling Subsystem (SHS)
NOTE During normal operating conditions, unshielded or lightly shielded grab samplitig devices may be used for sampling, unless unusually high radiation levels prohibit the use of such devices.
6.2.1 Attaching the Shielded Sampling Cask, or the In-line Sampling and Analysis Assembly (ISAA) to the Sampling Panel.
I
- a. Using tape, attach sleeving over the " QUICK DISCONNECT" '
fittings of the desired sample ports on the sampling panel,
- b. Attach the sampling cask or ISAA as follows:
(1) Utilizing the electric pallet cart, place the grab sample cask in front of the sample panel at the desired sample outlet.
(2) Attach the quick disconnect fitting to the fittings on the sample panel; pull sleeve back over connected fittings and tape securely.
(3) Close the bypass valve on the cylinder (middle handle).
(4) Open the upper cylindeer isolation valve (upper handle).
(5) Open the lower cylinder isolation valve (lower handle).
- c. If the ISAA is used, attach the fittings of the sampler to the fittings of the desired outlet, pull the sleeving over the fittings and tape to form a seal.
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NOTE The ISAA does not havu valves.
6.2.2 Decontamination
- a. Under normal operating conditions instrument air and domineralized water are valved in, but check to be sure they are indeed open.
I
- b. Setithe P002 switches in the following lineup:
(1) HS14 to LOCAL (2) HS5 to "ON" (3) HS4 to "0N" (4) HS13 to "0N" (5) HS6 to "0FF" .
- c. Allow the system to purge for 5 minutes,
- d. Set the P002 switches to the following lineup:
}
(1) HS5 to 'WF" (2) HS4 to "0FF" (3) HS13 to "0FF" 6.2.3 Hydrogen Analyzer Calibration
_ NOTE Disregard any steps that are already in progress.
- a. Decontaminate the system as per Section 6.2.2, if required.
- b. On panel P002, set the switches in the following lineup:
(1) HS14 co " LOCAL"
)
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GRAND GULF NUCLEAR STATION CHEMISTRY INSTRUC'510N
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(3) HS11 to " SPAN"
- c. Adjust the SPAN POTENTIOMETER to the % hydrogen vclue of the calibration gas being used. 20% hydrogen is recommended.
- d. Set HS11 to "ZER0", and adjust the zero potentiometer to indicate zero. j
- e. Set the P002 switches in the following when calibration is completed:
(1) HS4 to "0FF" (2) HS11 to " CONTAINMENT" 6.2.4 Dissolved Oxygen Analyzer Electrolytic Calibration To permit gases to be purged from the system, at least 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> of )
continuous operation following initial start-up should be allowed before consencing the calibration. '
3
- a. Turn the METER RANGE CONTROL to "X 0" position. .
- b. Turn the TANK MONITOR /0XYGEN GENERATOR CALIBRATION KNOB (monitor / calibration knob) to " TANK HONITUR" position.
- c. Turn the AUTOMATIC-MANUAL TEMPERATURE COMPENSATION CONTROL KNOB to "AUT0" position and apply AC power.
- d. Decontaminate, purge, and establish reactor coolant flow through the PAMS and the Oxygen Analyzer at a flow rate of 50
+ 5 liters per hour as per Sections 6.2.2 and 6.2.11.
- e. Set the meter range to the O to 100 ppb or the 0-10 ppb range as desired,
- f. Note the initial reading.
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.m. ___ _ _ _ _ _ _ . _ . _ _ _ _ _ _ _ _ _ _ _ _ . _ . _ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ .
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- g. Turn the MONITOR / CALIBRATION CONTROL to the highest feasible reading of dissolved oxygen without exceeding the full scale reading.
N_0,T_E The dial setting is "D.O. ADDED".
- h. When the reading stabilizes, note the reading.
- i. Subtract the reading obtained in step 6.2.4.f from the reading obtaittsd in step 6.2.4.h to obtain " CHANGE INDICATED" value used in step 6.7.4.J.
- j. Use tne following foruula to determine the correct reading:
Initial + Change D.O. - Changed Reading Indicated I Added Indicated
- k. Adjust the analyzer to the correct reading.
- 1. Return the-menitor/ calibration knob to tank monitor position.
6.2.5 pH, Conductivity and Chloride Instrumentation Standardization and Calibration . including electrode cleanup and "0" ring change-out
)
m This section of the procedure is concerned with initial calibration, calibration following maintenance or clean-up of monitoring probes and electrodes, scheduled calibrations or calibrations following known malfunctions of the instrument, or for any other reason not mentioned, but deemed necessary. Proceed to Section 6.2.7 for routine standardization and calibration.
CAEION Follow GGNS Health Physics practices,
- a. The following equipment is suggested: pH buf fer solution, pH 7.0), a solution of known conductivity, a solution of known chloride concentration, pipets and pipettors, beakers, 50,
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and 150 al, Thermometer (0-100*C), reagent water in a polypropylene, dispensing bottle (8), acetone in a l
, polypropylene, dispensing bottle, absorbent tissue, plastic bags, tape, additional rubber or plastic gloves, applicable, new "0" rings, silicone grease, and pipe sealant (Loctice 92-14, or equivalent)
- b. Standardize the pH, Conductivity and Chloride Instrumentation (1) Pull out the standardize knob on the receiver.
0 CAUT_I,0,N I Use care when handling the chloride electrodes to prevent contaminating them. , ,
l (2) Remove the electrodes from the housing.
(3) Clean electrodes with a tissue wetted with acetone, wipe the pipe sealant from the threads of the electrodes fittings, inspect for cleanliness, and rinse with D.I.
water.
(4) Inspect the electrodes for filling solutions, damage, etc. and repair or replace, as needed.
(5) While measuring the temperature of the buffer solution and the conductivity solution, immerse the pH and conductivity electrodes into the respective solution for each.
4 (6) Immerse the chloride electrode and reference electrode into the chloride standard.
(7) Stir the solutions, and allow the readings to stabilize.
(8) Adjust the Standardize knob on the receiver to bring the meter or the recorder pen to; (a) The exact pH (temperature compensated) of the buffer solution for the pH meter, k
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(b) The exact conductivity as previously measured in the laboratory for the conductivity monitor, and (c) The exact chloride value obtained in the laboratory for the chloride monitor.
(9) Clean electrode housing and apply new pipe sealant to the thre ads .
(10) Insert new "0" rings and apply silicone grease to tne new "0" rings and pipe sealant to the threads on the electrodes.
(11) Put the "0" rings in place.
(12) Carefully insert each electrode into the appropriate housing and hand-tighten to seal, being careful to avoid contaminating the electrodes with grease.
6.2.7 Routine Standardization and Calibration of the In-Line Sampling and Analysis Assembly pH and conductivity instrumentation.
Check electrodes and standardize the instrumentation acording to Chemistry Instruction 08-S-04-104 and 08-S-04-109.
)
- 6.2.8 Per cent Hydrogen reading and Containment or Drywell Atmosphere
- a. All root valves to the PAMS are normally open. Ensure that they are indeed open.
- b. Attach propse cask to panel outlet Per 6.2.1.
- c. At the Chemical Analysis Control Panel; set up the P002 switches per Section 6.2.2.
- d. Set up P002 switches in the following lineup:
(1) HS14 to " LOCAL" (2) HS12 to " SELECTED SAMPLE POINT"
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System (PAMS) Operations l l l (3) HS4 to " BLOWDOWN" (4) HS8 to 1, 2, 3, or 4 in order to get approximately 200 cc/ minute.
(5) HS2 to " SELECTED SAMPLE POINT" (6) HS1 to "0N" (7) HS11 to " CONTAINMENT"
- e. Begin monitoring the radiation level at the PAMS and sampling cask, allowing five minutes for purging the system.
- f. Read Hydrogen content in atmosphere off meter on P002.
- g. Isolate the sample in the cask by; (1) Closing the upper manual valve, (2) Closing .the lower manual valve, and (3) Opening the bypass (middle) manual valve.
- h. Set the CAS SYSTEM PURGE switch (HS3) to the "0N" position and
- allow the system to purge for 5 minutes,
- i. Remove cask as per Section 6.2.9.
- j. At the P002 Panel set the switches in the following lineup:
(1) HS4 to "0FF" (2) HS1 to "0FF"
- k. Multiply the cc/ minute gas flow by 1000 and divide by ec/ minute liquid flow to obtain ec/kg to H2 at STP, then, multiply by the per cent hydrogen value taken from the hydrogen inse.rument.
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6.2.9 Removing the Shielded Sample Cask, or the ISAA from the Sampling Panel.
- a. Check the dose rate of the cask or sampling device,
- b. Disconnect the upper and lower quick disconnects.
- c. If the cask was used, lift the cask with the cart and roll the ,,
cask back to the length of the sleeving, being careful not to tear the sleeving or pull it loose,
- d. Twist the sleeving, tape the twisted section, cut the twisted section midway the twist, fold the ends back, and tape again.
6.2.10 Obtain an Of f Gas Grab Sample as follows:
- a. Attach the sampling cask or device as per Section 6.2.1.
- b. Decontaminate the PAMS as per Section 6.2.2.
- c. Purge the PAMS sampling system by setting P002 switches in the following lineup:
(1) HS14 to " LOCAL" (2) HS12 to the desired location, either 1, 2, 3, 4, or 5 position. If location 5 suppression pool is selected, position HS20 to "0N". Also, operations must be notified because when sampling S.P. an alarm may be actuated showing a drop in S.P. level.
(3) HS4 to "BLOWD0iOI" (4) Adjust the sample flow to approximately 200cc/ minutes as read on the meter marked, " Degassed Sample Flow Rate" using HS8 set to either the "1", "2", or "3" position.
(5) HSil to "0FF GAS" (6) HS4 to the "0N" (7) HS10 to " SAMPLE" s
GRAND GULF NUCLEAR STATION CHEMISTRY INSTRUCTION
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- d. Allow the system to purge for 5 minutes.
- e. Isolate the sample in the cask as per Step 6.2.8.g.
- f. Decontaminate the system as per Section 6.2.2.
- g. Remove the sampling cask a per Section 6.2.9.
6.2.11 Obtain a high pressure, Undiluted Grab Sample as follows:
- a. Attach the sampling cask or device as per Section 6.2.1.
- b. Decontaminate the PAMS as per Section 6.2.2.
- c. Purge the PAMS by setting P002 switches in following lineup:
(1) HS14 to " LOCAL" (2) HS12 to " DESIRED SAMPLE POIlff" (3) HS4 to "0N" (4) HS8 to desired position as indicated on meter.
(5) HS6 to " SAMPLE" (6) HS9 to "0N" (7) HS20 to "ON" only if S.P. was selected as sample point,
- d. Read pH, conductivity and dissolved oxygen off meters
- e. Isolate the sample in the sampling cask or device as per steps 6.2.8.g.
- f. On P002 panel set switches in fc11owing lineup:
(1) HS6 to "0FF" (2) HS9 to "0FF" (3) HS20 to "0FF"
GRAND GULF NUCLEAR STATION CHEMISTRY INSTRUCTION l
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.)
- g. Decontaminate the PAMS as per Section 6.2.2.
- h. Close the bypass valve on the sampling cask or device and remove the cask or device as per Section 6.2.9.
6.2.12 Obtain a diluted (approximately 1180:1) Grab Sample
- a. Attach the sampling cask or device as per Section 6.2.1.
- b. Decontaminate!the PAMS as per Section 6.2.2.
- c. Purge the dilution system with D.I. water by setting HS19 to "0 PEN" position and HS7 to the " PURGE" pocition. Wait 2 minutes. Then set HS7 to "0FF" and HS19 to "CLOSE".
- d. Establish saaple flow with the P002 switch in the following lineup:
(1) HS14 at " LOCAL" (2) HS12 at the desired position. (If the Suppression pool is sclected, the Suppression Pool switch (HS20) has to be placed in the "0N" position).
(3) HS8 at " MAX" ,
}
(4) HS4 in'the "0N" (5) HS11 in "0FFGAS"
- e. To mix a diluted sample, set switches as follous:
(1) HS13 to "0 PEN" position.
(2) HS18,to?"0 PEN" (3) HS7 to " SAMPLE" position. ,
(4) HS17 to "0 PEN" - -
- f. Let the sample circulate for two minutes .
A ..N
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- /
_-------.----------__--___----.----j
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GRAND CUIE NUCLEAR STATION CHEMISTRY INSTRUCTION
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,, System (PAMS) Operations l l l l
- g. Set HS15 to "CIDSE" and wait two minutes for cask to fill. I
- h. Is'olate the sample in the grab sample container as per Steps 6.2.8.g.
- 1. To blow out excess sample set P002 switch in following lineup and wait two minutes:
(1) HS18 to "CLOSE" '
I (2) HS7 to " PURGE" '
(3) HS16 to "0 PEN" (4) HS15 to "0 PEN"
- j. Shut off air by setting HS15 to "CLOSE".
1
- k. Decontaminate dilution system by setting HS19 to open and wait
, five minutes.
- 1. To shutdown dilution system use following lineup:
~'
(1) HS7 to "0FF" (2) HS16 ~ to "CIDSE" '
(3) HS17 to "CLOSE" (4) HS19 to "CLOSE"
- g. Close bypass on cask and remove the sampling cask Section 6.2.9.
t eme 9
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GRAND GULF NUCLEAA STATION CHEMISTRY INSTRUCTION 08-S-04-904 Revision 1 Attach:nent i Page 1 of 1 g . .
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GRAND GULF NUCLEAR STATION CHEMISTRY INSTRUCTION
, 08-S-04-904 { Revision 1 Attachment II lPage 1 of 1 q
i A. APPROXIMATE MCA CHANNEL NUMBERS vs ENERGIES l
l Approximate MCA Energy Isotope Channel Number '(kev) 244 122.063 Co-57 272 136.476 Co-57 552 276.400 Ba-133 605 302.850 Ba-133 711 356.010 Ba-133 767 383.850 Ba-133 I 1322 661.638 Cs-137 2344 1173.237 Co-60 2663 1322.501 Co-60 B. SAMPLE INLET POINT IDENTIFICATION NUMBERS Channel ID Number Description i
l Unit 1 Gas 1 Containment Atmosphere '
Unit 1 Gas 2 Drywell Atmosphere Unit 1 Liquid 1 Recirculation Loop B Unit 1 Liquid 2 Jet Pump Line D Unit 1 Liquid 3 RER Loop A Unit 1 Liquid 4 RHR Loop B Unit 1 Liquid 5 Suppression Pool L _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
GRAND GULF NUCLEAR STATION CHEMISTRY INSTRUCTION 08-S-04-904 Revision 1 Attachment III Page 1 of 1 0
-)
A. VALVE IDENTIFICATION NUMBERS ID Number Valve Description Channel 1 Containment Atmosphere Inlet Unit 1 Gas 2 Drywell Atmosphere Insist Unit 1 Gas 3 Purge Air Inlet Unit 1 Gas 4 Target Valves Unit 1 Gas 1 Recirculation Loop B Inlet Unit 1 Liquid 2 Jet Pump Line D Inlet Unit 1 Liquid 3 RER Loop .. Inlet Unit 1 Liquid 4 RRR Loop 3 Inlet Unit 1 Liquid 5 Suppression Pool Inlet Un .t 1 Liquid i
6 Domineralised Flush Water Inlet Unit 1 Liquid 7 Target Bypass Valve Unit I Liquid 8 Target Val re A Unit 1 Liquid 9 Target Valve B Unit 1 Liquid 10 Target Valve C Unit 1 Liquid B. PUMP IDENTIFICATION NUMBERS ID Number Pump Description Channel -
1 Main Gas Circulatica Unit 1 Gas 1 Main Liquid Circulation Unit 1 Liquid 2 Suppression Pool Booster Pump Unit 1 Liquid w.n .
- _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ - _ _ _ _ _ _