ML20072L156

Public Version of Rev 7 to Emergency Plan Implementing Procedure HNP-8022 Re Environ & Personnel TLD cross-check Program,Rev 1 to HNP-8143 Re Low Vol Air Sampler & Rev 1 to HNP-8146 Re Operation Calibr of Portable Rate meter-scaler

ML20072L156
Person / Time
Site:	Hatch
Issue date:	02/09/1983
From:	GEORGIA POWER CO.
To:
Shared Package
ML20072L138	List: ML20072L149 ML20072L156
References
PROC-830209-01, NUDOCS 8303310121
Download: ML20072L156 (42)

Text

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DATE:

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ED TO BE R/ TURN THIS TRANSMITTAL AND'ANY DOCUMENT RETURNED, TO THE DOCUMENT' CONTROL DEPARTMENT.

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PROCEDURE 4

Envi ronmentM and_Porsonnel Tt.D Cross Check Program PROCEDURE TITLE

. HNP-PO22 PROCEDORE NUMSER Lab RESPONSIBLE SECTION SAFETY RELATED ( X) NON-SAFETY RELATED ( 9

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APPROVED APPROVED PLANT.

REV. ,

DESCRIPTION DEPT. DATE.

HEAD MANAGER

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, Civ\ . ' fc s $ *2 REVISION CHANGES MODE OF. OPERATION OR INTENT AS DESCRIDED IN FSAR: ,

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• • CHANGE

( ) AnINVOLVES: unreviewed Safety Guestion (- ) Tech. Specs. ( N Neither (See back for Safety Evaluation if required). ..

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REASON FOR REGUEST 1 " 4 Lk

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_ System.

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_-- of _a_n_.a_c_c_i_ dent. or ma.l..f.u_n_ction of a di --ffere.n.t_tvoe .

than anal X_ zed i_n_the FSAP does not'resu_l_t from th.i.s c.h._anc_e _bbcaus e.

the sys_t_em resoon'ds__and is operated as before the chanoe.

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3. The marain of safet_y as defined in the Te_c.h.nical S_o_e_c_i_fic_at_io_n_s._-__ -

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', is 'n.o.t reduced due to this revision becau_s_e the revision does. n. n_t _--_

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- . chan_ce _a_n_y limited s._a_fe_t.y sys_ tem settinos which would allow a safet'v limit to be exceeded or to a_l_ low a-limitino.7 condition for o_Perations to be exc'eeded as stated in' Te_c_ hnica_l_Soecif_i_ c_a_ti l

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.? a n sicaon ia E.1. MATCH NUCLEAR PLANT HNP-8022 7 See Title Page namw s ,

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~See Title Page GeorblaPower b 1 of 6 ENVIRONMENTAL AND PERSONNEL _TLD CROSS CHECR PROGRAM A. PURPOSE *

• To ensure that personnel radiation exposure results and environmental radiation exposure results as reported by the outside contractor are reasonably accurate. .

B. SAFETY s s

Observe radiation protection procedures'.

C. ,FFERENCES R .

HNP-8110, Vic'toreen Condenser R-uieter Model 570 Operation'and'

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Calibration .

'D . TEST _EGUTPMENT

1. Dosimeter calibration board.

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Gamma source. -

Q 2.

3. Victoreen R meter W/"R" chambers 130 and 552.

4. Stop watch.

5. Twelve unexposed visitor TLD badges.

G. Six unexposed environmental TLD badges. ,

7. Six unevposed Panasonic TLD badges. 7 s

E. FREGUENCY ,

Minimum once per quarter. ,

/

/

F. PROCEDURE .

1. Field' Testing / Cross-Checking of Personnel TLD's Personn'el TLD. cross-check program can be achieved through doutele badging of a certain fraction of personnel involved .~ -

in jobs that result in a range,of exposures. For this reason, about 5 to 10 individuals from H.P. staff shall be chosen, and they will wear the additional-TLD just like p their regular TLD (preferably at about the same location).

b~ On receipt of results from the vendor, an investigation will , ,

be done if difference is greater than 20%. .

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2. Spiking of TLO',s to Known Radiation Fields

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a. *The* unexposed TLD badges can be exposed using three

.. different methods. The methods are t,he calibration

. board,.celibration well, and the work bench area. When I using the calibration well, or work bench area, the source-to-badge distance can be adjusted to obtain different exposures. There are other sources available to be used with the work bench or calibration board.

NOTE The faces of the badge.s must be,toward the source.

b.. The following. badges and the number Sf'each type should be exposed as follows: -

2 Environmental badges-15 mR 2 Personne1' badges-1000 mR 2 Environmental badges-25 mR 2 Personnel badges-2400 mR 2 Environmental badges-50 mR 1 Panasonic badge-50 mR

• . 2 Personnel badges-50 mR 1 Panasonic badges-100 mR 2 Personnel badges-100 mR 1 Panasonic badges-2GO.mR i

("), 'l Panasonic badge-500 mR

. 2 Personnel badges-2OO mR

- 2 Personnel badget-500 mR 1 Panasonic badge-1000 mR 1 Panasonic badge-2400 mR

c. Calculate the clock times required, and distances required (depending on the source used) for approximate doses of 15, 25, 50, 100, 200, 500, 1000, 2400 mR to be received. Record on Data Package 1, Data Sheet 1. An RO-2A (or equivalent) or R-chambers can be used for this purpose. r

d. After time and distance are calculated for each individual dose, rezero the R-chambers required for the dose needed. When exposing a set of badges to a ^

certa,in dose, an R-chomber must also be exposed at the If the R-chambers and reader are out of l same time. .

service because of calibration, the last measured R-c,hamber source curves may be used instead.

. NOTE Use the Model 130 R-cham'ber (0.25R) for badges exposed from 15-200 na and the Model 552 R-chamber (2.5 R) for

- badges exposed 500-2400 mR.

( Refer to HNP-8110 for the use of the Victoreen -

R-chambers and rsaders.

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e. . Instructions on filling out the measured R-meter

- section'of Data Package 1, Data Sheet 1.

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' 1. " Actual Chamber Reading: The reading that is

.. observed when the chamber (after.. exposure' to

. radiation field) is read using the Victoreen R-chamber Reader.

2. C. F. (Cor.rection Factor): Correction Factor as determined by Victoreen. These correction Factors

~

can be located on the Response Test Data worksheet

- supplied by Victoreen. Victoreen supplies this '

information after the R-chambers and Reader have been calibreted. Calibration is due every 18 months. -

3. Temp . /Ba r'.1 P r e s sur e ' (Temp e rature /Ba romet r i c .

Pressure): Take temperature and barometric pressure during tide of cross-check procedure.-

Record these values on Data Sheet 1.

~ '

4. (T) Temp., Bar. Pressure Correction: If the

. (.1 - -

R-chambers are being used 't than 22 C or pressure other than 760 mm Hg a a temperature other requires the response be correc'ted for air density

~

per Table-lu_HNP-8110 (Victoreen Condenser R-meter Model 570, Operation and Calibration). Record this value if needed.

5. C.F. X T: The multiplication of correction Factor and Temp,., Barometric Pressure Correction gives the total correction Factor. This number is multiplied by the Actual Chamber Reading jo.give.

the Real Chamber Reading. ,

6. Real Chamber Reading: This number will be the.

value needed to determine the comparison between R-chamber and the Contractor Results. .

f. After TLD's have been exposed, they shall be mailed to the. appropriate vendor for reading. Read Panasonic TLD's on the Panasonic TLD Reader and' record on Data Package 1, Data Sheet 1. Read the R-chamber as per HNP-8110, and rccord on Data Sheet 1. If the Panasonic Reader is out of use at the time of the calibration check, do not expose the Panasonic badges until the reader is operative.

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-4 of 6 g., After vendor's results have been obtained, log and compare the vendor's results with R-meter results on

. Data Package 1, Data Sheet 1. Vendor's results take approximately 1 month to obtain. .

h, If results are not within 20%, initite corrective action and explain corrective action taken on Data Package 13 Data Sheet 1 (i.e., recalculated results, review vendor's results, etc.). Procedure can be .

repeated if necessary.

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• *' GEORGIA POWEh COMPANY HATCH NUCLEAR PLANT PROCEDURE .

Low Volume Air Sam 2 er Model H-809 V1 1 .

PROCEDURE TITLE 4 HNP-8143 PROCEDURE NUMDER .

Lab RESPONSIBLE SECTION .

SAFETY RELATED ( X ) NON-SAFETY RELATED ( *)

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• REVI'SICN CH.O.0~3 MODE OF .CPERATION 03 INTENTf AS DESCRIDEO '.N FSAR: .;

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REASON FCG KE0i.'EST --

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question as exclained below. .

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1. The proba5 flit.y o..f...occurrdnce a.n.d__t.b3 -- -- c..O .c.5.e.o_ _ _ __ _ _ _uences of'an accident I

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e malfunction of eauic_ ment importan.t.

--- -_ . - - - - . - to - safetJi a.re not increased .

above these ana1v71.d in thgJ;5A8_dy_Go._t.has.e r,b3EcRS hem.S2.-

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, . I the revision does _not cha.nce the ourocse or oerformance of the

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than ' anal.yze_d__in the FSAR.does not! ' result fro:t this chance because.

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the system resconds and is coerated as before th'e chance.

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3. The marcin of safety as defined in the Technical Soecificatic_ns .

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l chance any limited safet system settinos which would allow.a safet'v_ limit to be exceeded or to allow a limitino condition for noerations to be _ exceeded as _ stated in_' Tec.h.nical Scecifications.

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LOW VOLdME AIR SAMPLER MODEL H-809 Vi 1

A. , ,PUR PO__S_E_ ,

^

To establish a. standard technique for the operation and calibration of RADeCD Lovi Volume Air Samplers.

B. SAFETY

1. Observe radiation protection procedures.

~ _

2. Observe safety rules outlined in Georgia Power Corpany, SAFETY, Section "O"._

C. . REFERENCES

1. HNP-8013 Airborne Radioactiviiiy Concen tration Determination

2. RADeCO Model H-809 V1 Low Volume Air Sampler Operation and

, Mai,ntenance Manual

.?

• 3. , , RADeCO Air Flow Calibrator Instruction Sheet, Model C-828 D. TEST EGUIPMENT

~.

1. RADeCO Air Flow Calibrator, Model C-828 2.. RADeCO Venturi Tube, Air Flow Calibrator' Adaptor -

E. DESCRIPTION OF INSTRUMENT The RADeCO Low Voluine Air Sampler is a compact unit used Gor obtaining a grap sampic of a large volume of air which is monitored for particulate and radiciodine airborne radioactivity. The model H80SV1 raay be operated at a fixed flow rate or variable flow adjustable between zero snd approximately

90% of maximum. .

F. OPERATION OF INSTRUMENT

1. Remove'the outer ring on the sampler head by turning it counter clockwise and install a 47mm glass fiber filter into the holder. Be sure the filter paper ceats properly at all points or it may tear the paper. Replace the outer ring by turning it clockwise. .

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2. Ope.n the char. coal cartridge holder by turning the inter ring counterclockwise, and place a charcoal cartridge into holder, no' ting'the direction of flow through the cartridge.

Replace the inter ring by turning clockwise, and make sure

~'

that both rings'are securely together and Tight.

3. Turn the VAR-OFF-HI switch to the VAR position and adjust the flow rate by rotating the control knob labeled FLOW ADJ.

to 3 CFM and note the TIME ON. \

4. Allow the sampler to run a minimum of 35 minutes at 3 CFM to '

tachieve a volume of # 100 cubic feet, then turn sampler.off and note TIME OFF. .

Take the sample collheted back to the H.P. office for 5.

~

counting a.s soon as possible. P1' ace.the glass fiber filter in the holder of the couirting scaler and count it. f or 5 -

' minutes. -

6. Remove the charcoal cartridge and wrap it in plastic. wrap,

, and, label both the filter and the charc,oal for counting room analysis.

7. ' Follow in'structions as found in HNP-8013 and complete Figure 2 of HNP-8313 using the appropriate formulas given on the bottom for calculations.-

'G . CALIBRATION The sampler is calibrated once every (3) three mo.nths or as often as needed using the RADeCO Air Flow Calibrator, model C-828.

1. Place a. charcoal cartr'idge in the sampler as though r l preparing to take a sample. -

2. Remove outer ring a.nd placc a 47mm glass fiber filter into holder. In place of outer ring, screw the RADeC.O Venturi Tube into it's place. ,

3. Plug sampler in and turn VAR-OFF-HI switch to HIGH and allow a warm-up time of_2 minutes. ,

4. Connect the Venturi Tube to the *AC outlet of the Air Flow s Calibrator, making certain $he IN'AME on the calibrator is l open.

-N Adjust the screw at the top of the air sample rotameter em 5.

(. until the rotameter float indicates the flow rate shown.by the Ai t Flow Calibrator. Record this value on Data Package

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6. Turn the VAR-OFF-HI switch to VAR and then adjust the control knob labeled Flow ADJ. until a rotameter, reading of 3 CFM is.observbd. Take a reading from the Air Flow 1.

Calibrator meter pointer and record on Data Package

7. If the observed reading is 3 CFM i .3, lock the retaining nut on the rotameter screw down and place a drop of

" correction fluid" or similiar substance on the threads.

This creates a seal to prevent further adjustment from 3, being made without detection. If readings are not 3 CFM\ .

, repeat steps G.5 and G.6.

B. Remove the charcoal cartridge from its holder and place'the sample head back together. Rbpeat steps G.3 through G.7 for the. glass fiber filter only-and re' cord results'on Data-Package 1.

9. Remove Venturi Tube and replace outer ring on sample head.'

. Record any adjustments made in the MAINTENANCE PERFORMED section of Data Package 1 and replace the calibration sticker.with a new one bearing this test date and the next a

rou' tine quarterly i 14 day calibration date.

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PROCED@E DATA PA".KAGE DOCttOJT to: R#-8143-1 SERIAL PC: Rot-

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RTYPE: C15.14

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- TOTAL SHEETS: 2 8KEQUDJCY:

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. DATE CONFLETED:

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• I HAVE REVIEbED THIE DATA.Eff,WACE FOR COMPLETENEES

1. O ACAIN5T ACCEPTANCE CRITERIA IN ACCOR MJCE WITH HtP-830.

1. 4CEPTABLE -

U4 ACCEPTABLE REVIEWED DY: 't

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@ _PACKA0E_1 (Data Sheet 1)

. . @ ECD H-EO'3 VI CALTBRATICH F-SECT N.P.L. PUGER - SE I/4. N!.FGER CFM WITH CLASS AFC CH4RCOAL CFM WITH CLASS t.*C CH/# Cot 4. (AT 3 CFM) s

. CFM WITH CLASS FILTER ONLY

- CFM WITH CLASS FILTER ONLY (AT 3 CFM)

(FLOW PETER)

TEST EOUIF:EFJT USED: PCL MAINTNT4ArCEPERFORrED: _

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LO;ATf0J: C/4.IGRATED CY:

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DOCUMENT TRANSMITTAL TRANSMIRAL NO: A( M -- /j ff_

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DESCRIPTION OF DOCUMENT (S) TRANSMITTED:

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RETURN THIS TRANSMITTAL AND ANY DOCUMENTS REGUIRED TO BE

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DESCRIPTION OF DOCUMENT (S)'id BE RETURNED:

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_ Sc Ega h Ic nK DOCUMENT CONTROL/ SUPERVISOR HNP-O-ADM-OOO10 R13 e-b- ,

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HATCH NUCLEAR PLANT C"%, . ' '

PROCEDURE Rascal Portable Rate Meter-Scaler /Model PRS-1 Ogeration and Calibration

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• PROCEDURE TITLE -

~1 HNP-8146 PROCEDURE NUMBER Lab

. RESPONSIBLE SECTION SAFETY RELATED ( X ) NON-SAFETY RELATED ( )

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. . _ . . , 4' b REVISION CHANGES MODE OF.CPERATION OR INTENT AS DEGCRIDED IN FSAR:

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. Attach inar ed up copy of protedure to thi's form. -

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Signature: Date:

.. REVISION CHANGES MODE O.'

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.CPERATION OR INTENT AS DESCRIDED IN FSAR:

) Yes . ( ) No .

,, CHANGE INVOLVES: * *

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( ) An unreviewed Safety Guestion ( ') Tech. Specs. ) Neither (See back for Safety Evaluatic'n if required).

. Safety Related ( ) Non-Safety Related . ( ..

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system. .

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The possib.i.l_i_ty_of an accident or malfunc_t.i.on of a different tv. oe . _.

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than analX_ zed in the FSAR does not result from this chance because --

the sy_s_t, em re_s, ponds _and is operated as _ before the chance.

3. The maroin of safety a,s defined in the Technical Soecific'ation_s_ _'

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is not r.e.duced due to this revision becau_s.e. t_h_e__ revision __d_o_es not chanc_e_ __a_n.y limited .s_a_fe_ty-system settinas _whi ch woul d allow a __

- safet'y l,imit to be exceeded or to allow a limitino condit_i_o_n for operations to be exceeded as stated in'_ Technical Soecif'ications_. t

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1 of 19 RASCAL UbRTAB'LE RATE METER-SCALER /MODEL PRS-1

~~

OPERATION AND CALIBRATION L. .

A. PURPOSE To ensure the instrument is calibrated properly and to provide guides for the user. i B. SAFETY Observe radiation protection procedures .

~

C. REFERENCES

1. Eberline Corp. Check Out-Procedure's

2. RASCAL Tech Manual

3. Mini Pulser Procedure, HNP-8116 f,.

't ,

D. TEST EGUIPMENT -

1. Electrostatic Voltmeter

2. Power Supply (5 to 7 volts at 150 MA) ,

3. Mini Pulser -

E. DESCRIPTION ON INSTRUMENT r

Th'e RASCAL, Model PRS-1 is a complete counting system consisting i of a variable high voltage supply, charge sensitive input amplifier,' scaler, ratemeter, timer, six decade digital liquid crystal display and a self-contained battery supply. The RASCAL provides a single channel pulse height analyzer. All circuits are solid state with extensive use of CMOS integrated circuits to enhance reliability. All integrated circuits are plugged in for l

ease of maintenance.

1. The instr.ument is designed to be used with many different detectors.

2.

The instrument uses a liquid crystal and low power l

integrated circuits components to conserve battery power.

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( . F. DESCRIPTION OF_ CONTROLS ,

1. External

a. Detector: Scintillation detector (SPA 3 cr G-M Detectors)

b. Reset: Push button switch to reset all appropriate circuitry to zero and to start counting sequence.

c. Function'Saitch: Rotary switch that selects mode of instrument function; ratepeter or scaler and ranges for each function. The ratemeter mode has four' ranges to I prov-ide a selection of, accuracy of reading and speed of , .

response. The scaler mode has four timed ranges: 0.5 minutes, 1.0 minutes, 2Lminutes and 5 minutes plus l

-manual and-stop. The function swit,ch also has an' "H.V." position for' indicating high voltage of the l internal high voltage power supply ano an "OFF"  ;

posit. ion for turning the instrument off.

l .

d. PHA-GROSS: Switch to select gross counting or pulse f+ ,

~

height analysis (PHA). -

e. Th re shol-d

Ten turn calibrated dial for setting and changing base l'ine sensitivity.

, -f. Window: Ten turn calibrated dial for setting and ~

j changing range of pulse height to be counted.

1

! g. Reset Rate: Controls *the reset rate of the scaler function. The control has an "OFF" position in the extreme counter-clockwise positon to disable this feature.

l l h. H.V. Adj.: Single turn control for setting and l changing the high voltage supply. .

l

i. Speaker-On: Switch for enabling the internal speaker.

j. Light: Push switch to activate a lamp for reading the display'in low ambient light.

k. Bett Chi Connector for use ,of an external battery charger when using rechargable battercies.

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2. Internal

a. Scaler (Calibration Board): A two position switch used to select scaler display. In the STORE position the e data displayed is updated at'the completion of the timed cycle. In the INCREMENT position, the data is displayed or updated', continuously.

b. Calibration (Calibration Board): A two position switch used to select the calibration function when the

, instrument is used in the ratemeter mode. When the switch is in the IN position, the three calibration switches'are operational. When the switch is in the OUT position, the calibration function is not operational. In this' case,.the display is counts per' minute.

c. Calibration Function Switches'(Calibration Boar'd):

Three rotary switches'used to calibrate the instrument to the detector used with the instrument.

3

d. Legend Switches (Display Board): Eight switches that

(.l

, are used to select the legend or legends to be displayed when the instrument is operated in the ratemeter mode. The selections are (1) decimal point 1; (2) decimal-point 2; (3) decimal point 3; (4) CPS; (5) R/hr; (6) mr/hr; (7) CPM and (8) nRem/hr. When the switch is in the ON position, the legend will be displayed. When the switch is in the "ORF" or " OP.EN" position the legend will not be displayed.

e. "VCO" Frequency (Main Board): A potentiometer, adjustment for the high voltage display.,

f. "VCO" OFF Set (Main Bosed): A potentiometer adjustment for the high voltage display.

g. Battery OK Adj. (Main Board): A potentiometer ayjustment for the "BATT OK" display.

h. Amplifier Gain. Control (P-8B Board): A trimmer adju,stment f or amplifier gain adj ustment.

G. OPERATION OE_ INSTRUMENT NOTE

^

N_ -

Calibration frequency is semi-annual.

.(-- .

, - 1. Observe calibration sticker. Ensure instrument is calibrated. If not, tag it out with a TO SHOP tag.

MANUAL su o

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E. l. HATCH NUCLEAR PLANT HNP-8146 See Title Page m.vieu un 6 i G'

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See Title Page Georgia Power cA 4 of 19

2. Check the ins,trument for physical damage. ,

3. Turn the function selector switch to " RATE A", observe the display, ensure that "BATT OK" is displayed on the display.

If "BATT OK" is not displayed, then connect the battery charger to the instrument if rechargeable batteries are used. If rechargeable batteries are not used, replace with five new'D-cell batteries. 's

- NOTE The instrument will not o'perate when the

. batteries are being charged. -

CAUTION ,

Charge time is approximately 10 to 16 hours1.851852e-4 days <br />0.00444 hours <br />2.645503e-5 weeks <br />6.088e-6 months <br />.

Do not over charge the batteries. Damage to the equipment could occur if the batteries are over charged.

' *J. : 4< Se e Tc '> 1 e 1 for function selector switch Vs count time.

5. Perform ~ efficiency check and record results on Data Sheet 1 of Data Package 1,'(SPA-3 only).

. NOTE Efficiency checks will be made daily when the instrument is used.

g

6. When surveying, hold the SPA-3 near the matetial being surveyed and move the detector slowly over the material.

NOTE Do not submerge the SPA-3 in water or other liquids.

H. CALIBRATION (SEMI-ANNUAL)

~

1. Pulser Ca'libration (All Detectors)

'N s a. Remove old calibration sticker. ..

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b. Check ba.tteries by turning the selector switch to the "H.V." position. If the batteries are OK, the "BATT OK" legend will be displayed. If the "BATT OK" legend

'~*'

does not appear, recharge the instrument batteries for

- 10 to 16 hours1.851852e-4 days <br />0.00444 hours <br />2.645503e-5 weeks <br />6.088e-6 months <br />. If battery voltage'is still unacceptable, trouble-shoot and repair using the Eberline Technical Manual.

c. ' Check the "BATT OK" legend by first removing the instrument chassis from its case. Place the range

- selector switch in the "OFF" position and remove the

',ttery pack. Connect a well regulated power supply, capable of supplying an adjustable voltagt between 5 and 7 vo.lts at 150 ma to .the' batte,ry -connector on the chassis. Observe correct ~ polarity.

t

d. Adjust the power supply for .5'.75 volts and -tdr.n selector switch to position "A"; the'"BATT OK" legend should indicate OK.

e. Adjust the power supply to 5.6 volts; the "GATT OK" legend should not indicate and the " ERROR" legend

(.' - should indicate. Adjust "BATT OK" potentiometer R520, if necessary, to give the above indications.

f

f. Disconnect power supply and install batteries. Return instrument chassis to it's can. ~ Remove high voltage card (P201A). .

g. Capacitively couple'the MP-1 to the detector connector of the RASCAL.

i r

h. Adjust the input threshold potentiometer, R603 to 10 mVolts.

i. Adjust the MP-1 to 100 Kcpm. Calculate the total accumulated counts for O.5, 1, 2 and 5 minutes.

J. Place the selector switch in the 0.5 minutes position and allow the instrument to count for that time r period. Observe reading and record on Data Package 2, l

Data Sheet 2, in the "As Found" column.

k. Place selector switch' in the 1 minute position and repeat step H.1.J.

. 1. Place selec' tor switch in the a minute position and j(s repeat step H.1.j.

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EANUAL SET

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i G' GeorgiaPower cA

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m. Place selector switch in the 5 minute position and repeat step H.1.j.

n. If all the "As Found" readings are within limits,

. record readings in the "As Left" column on Data Package 2, Data Sheet 2.

o. If the readings are not within the limits, troubleshoot and repair as required. When repaired, repeat steps

.H.1.h. to H.1.n. ,

c

p. Adjust the MP-1 to 800 cpm. Turn selector switch to "A". Allow the instrument to count and compute. Read the legend,and r.ecord on. Data Package 2,' Data Sheet Ez In the "As Found" column.

. q .- Adjust the MP-1 to 8,000 cpm. . Turn-selector switch to <

"B". a compute ~. Read Allow'the instrument to count nd the legend and record on Data Package 2, Data Sheet 2, in the "As Found" column.

g. r .' Adjust the MP-1 to 80,000 cpm. Turn selector switch to t - "C". Allow the. instrument to count and. compute. Read

- the legend and record on Data Package 2, Data Sheet 2, in'the "As Found" column.

s. Adjust the MP-1 to 800,000 cpm. Turn selector switch to "D". Allow the instrument to count and compute.

Read the legend and record on Data Package 2, Data

~

- Sheet 2, in the "As Found" column.

- t. If all the "As Found" readings are within limi.ts, record readings in the "As Left" co.lumn on Data Package

~

2, Data Sheet 2.

u. If the readings are not within the limits, troubleshoot and repair as required. When repaired, repeat steps H.1.p. to H.2.t.

2. Calibra, tion (Sodium Iodide / SPA-3)

a. inst,all.high voltage power supply.

b. Adjust instrument voltage to 500 volts.

c. Place the PHA-GRDSS switch to GRDSS." ,

(~~

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d. Place WINDDW adjustment to 0.00.

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e. Place THRESH adjustment to O.30.

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1 F~ Georgia Power c.A 7 of 19 See Title Pace

f. Place the function selector switch to 1.0 minute; de, press the RESET button. Observe the display reading and record reading on Data Package 3, Data Sheet 3.

Turn the voltage up at 50 volt increments and record

- the readings until 1400 volts.is oblained. Plot the background counts Vs high voltage setting on Data Package 3, Data Sheet 3.

, 137-42

g. Decrease the vol.tage back to 500 volts. ' Attach Cs

- source (.27 uCi) to the end of the detector.

~h. Turn function selector switch to 1.0 minute.

Depress RESET . S ' TART switch; allow instrument to count.

~

i.-

Record rea. ding on Data Package 3, Data Sheet 3. .

J. Adjust vol'tage up 50 volts and repeat step H.2.i. until voltage reaches 1400 volts. Turn voltage up in 50 volt increments.

k. Plot the source counts Vs high voltage setting on Data Package-3, Data Sheet 3. Complete. Data Sheet 3.

C-(

1. Contact a Health Physics Foreman for review of graph.

Upon Foreman's approval, adjust voltage to fit the plateau. Lock the high voltage adjustment nut,,

m. Determine instrument efficiency as per Data Package 1, Data Sheet 1. Must be > 5'but ~4 15%. Record on Data Package'3, Data Sheet f r

n. Replace calibration sticker stating when,the instrument is due for its next routine semi-annual calibration. .

3. Calibration (G-M Detectors)

a. Adjust the high voltage to the recommended operating voltage noted on Table 2 for the detector being used.

Connect an electrostatic voltmeter to the high voltage pin, O C601, to cross check the voltage' reading on the

~ ~ ' ' *- -

instrument. If the two readings are within i 5%, skip

' ' - " ~ -

step b (go to step c), if not within i 5%, complete step b.

b- ,

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O' Sne Title Papp Georgia Power c.A 8 of 19

b. Adjust 'tbe High Voltage Pot for 1500 volts. If the di, splay does not indicate 1500. volts i 5%, adjust the VCO Frequency (R515) Potentiometer. Adjust the HU Adj.

to 500 volts. If the display does not indicate 500

~~

. volts i 5%, adjust the VCO offset (R516 ).

potentiometer. These adjustments are interact'ive and several adjustments may be nece,ssary for complete

~

adjustment. '

s Ct.UTION Use . care not to overvoltage the GM tube as permanent damage to the detector may result.

Not'e on' Data Package 4, Data Sheet'4, if the VCO .

~

c.

Potentiometers have be.en adjusted, which type of GM detector is being used and.the1High V.oltage Syst.em. .

d. Set the threshold control to 5.0.

e .- Set the PHA-GROSS switch to GROSS.

(~ f. ,

Connect the detector to th'e dete.cto,r connector,

g. FoF CPM Function, continue to next step. For Rate Function, go'to step q and continue. CPM or Rate Function is determined by the lower switch on the' calibration board,.which indicates IN (Rate) or DUT (CPM).

t l

h. Remove instrument from can.

i r

i. Insure caliteation switch is in the OUT position.

l

j. Select which positi.on the scaler switch (on the f

calibration board) will be set at. For continuous l

update, the INCREMENT position will be selected. For l

readouts at the end of the count cycle, STORE should be selected,

k. Move the CPM (#7) Legend Switch to the ON position.

Insure all other switches are in the open position.

1. Ret' urn instrument to its can.

I m. Source check the instrument following the proper limits

• for each detector as set out in Table 2. The readings l _

l (;, . must fall within i 20% of the specified limit.

1

n. Record the results on Data Package 4, Data Sheet 4.

I -

MANUAL SET l

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E. I. HATCH NUCLEAR PLANT HNP-8146 See Title Page m m,w r.s 1

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See Title Page Georgia Power 9 of 19

~~.

o. Place a new calibration sticker on the instrument stating when it will be due for its next semi-annual calibration.

~-

. p. Place a notation on the instrument' stating which detector the instruments is calibrated for and its useful range.

q. CPM Function Calibration is complete. -Continue to next step for Rate Function Calibration.

r. Remove the instrument from its can.

s. Switch the calibration switch.to the OUT position and return it to its can.

- t. De.termine how many cpm /mr the.'. detector sees.using the 10 mR/hr location and the CS-137-114' source. Take the reciprocal of that number and record it on Data Package 4, Data Sheet 4.

u. Remove the instrument.from its can.

( "

v. Switch the ca?.ibration switch to th'e IN position,

w. Using the reciprocal of the cpm /mR ratio, adjust the ,

three selector switches to the appropriate numbers. If the reciprocal is. less than 0.01,' the decimal point switches on the legend can be selected to extend the total range to 0.00001. Indicate on the data sheet which settings were selected.

. x. Select the legend switch which indicates.mR/hr (switch

1. 6) to the ON' position. A11 other switches are to be in the OUT position, except one of the three decimal l point switches that might have been selected in the previous step. ,

y. Return the instrument to its can.

l z. Sotar ce check the ranges' indicated on Table 2 according to the detector being used. Record the results on Data Package 4, Data Sheet 4.' If the instrument does not f.all within i 20% of the limits on Table 2, initiate repairs.

aa. Place a sticker on the instrument which indicates the~ ~_

i .(], , , type detector being used and its useful range.

- ' bb. Place a neW calibration sticker on the instrument stating when it is next due for its routine semi. annual I calibration.

PANUAl.sg n

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See Title Page ~.or. "

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10 of 19 TABLE 1 ,

" FUNCTION SELECTOR GWITCH Vs COUNT TIME SWITCH POSITION NUMBER OF COUNTS OR INSTRUMENT TIME (RATE) EVENTS AVERAGED LIMITATION A 10 1.67 mins.

B 100 -

16.7 mins.

-(2.78'hr.) .

C 1;O00' -

167 mins.

. (27.8 hr.')

.D 10,000 1670 mins.

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. WPE DETECTOR NORMAL USE HIGH VOLTAGE USEFUL" RANGE SOURCE WITH PRS CHECK POINTS HP260, 210 CPM 900 Volts 0- 20 K with Pancake 100 K cpm Frisker Check Probe .

( Source HP220A with Rate 500 - -

5- 10 mR, 100 mR LND 714 (mR/hr) 530 Volts' 3,000 mR 1,000 mR, 2,000 mR-

---_-__-------. _-----_----_...------_- -- H--------- -- ---------------

HP220A with Rate- 500 - 50 - 100 mR, i 716 (mR/hr) 530 Volts 10,000 mR 1,000'mR 8,000 mR He177C, 270 Rate- 900 Volts 0.1 to 1 mR, 100 mR with LND 725 (mR/hr) 200 mR or 10 mR , 200 mR or .

or or

,.9.. - -

com 200 K , cpm - 170 cpm, 1,600 cpm,

' 10 K cpm,

~

90 K cpm l u------------- -- -----------

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PROCEOLRE DATA PACHACE m4 . .

00CUPENT I403_W4P-Bt 4f.-1 semis 4.6.0:.E21-Oft ND:_N/A RTYPE:E E.14 mREr .

. . . . 4 e TOTAL 94EETS: 2-FREOLENCY .' At Reggiged COPS'LETED SY DATE C09'LETED:

. I HAVE PEVIEWCD THIS DATA PACMACE FOR COPPLETEPCS3

, Ate AGAINST ACCEPT /.*CE CRITERIA IN ACCOdOMCC WITH 6fJP-330.

s ACCEPTABLE LNACCt TABLE REVIEWED CYI DATE NEVIEbCD:

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ACCEPTN3LE ~ LNACCEPTABLE

. REVIENED BYi DATE REVIDEOi l

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ACCEPTABLE tNACCEPTADLE REVIEWED BY: -

DATE REVIEWED:

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18 of 19

.o . PROCE!XPE DATA PACWACE *

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'If DATE, Indicate Correction Factor (Rec'iprocall and Decimal

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Correction Factor (Reciprocal) _

Decimal Point Seeltches TSOLRCE CWCW ACTUAL ACTUAL CA4.!B. SOLFCE COUNT RATE DOSE RATE AS FOLND AS LL77

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