ML19224B467

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Surveillance Procedure 2302-R3:radiation Monitoring Sys
ML19224B467
Person / Time
Site: Crane Constellation icon.png
Issue date: 11/17/1977
From:
Metropolitan Edison Co
To:
References
2302-R3, TM-0610, TM-610, NUDOCS 7906150136
Download: ML19224B467 (48)
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- 'l THREE MILE ISLAND NUCLEAR STATION O g$ C.; I 1RpT #2 SURVEILLANCE PROCEDURE 2302-R3 .B ~ ~y e.,h. Q\\j C. .c,- RfDIATION MONITG7ING SYSTEM .., f C., s .cp:w Tcble of Effective Pasas '. 1 J m 98 Da. ) D7te Revision Pace Date R evision P::ce Date R nision 1.0 11/17/77 1 26.0 11/17/77 1 2.0 11/17/77 1 27.0 11/17/77 1 e 2.1 11/17/77 1 28.0 11/17/77 1 3.0 11/24/76 0 29.0 11/17/77 1 4.0 11/24/76 0 30.0 11/17/77 1 5.0 11/24/76 0 31.0 11/17/77 1 6.0 11/24/76 0, 32.0 11/17/77 1 7.0 11/24/76 0 33.0 11/17/77 1 8.0 11/24/76 C 34.0 11/17/77 1 9.0 11/24/76 0 35.0 11/17/77 1 10.0 11/24/76 0 36.0 11/17/77 1 11.0 11/24/76 0 37.0 11/17/77 1 12.0 11/24/76 C 33.0 11/17/77 1 13.0 11/24/76 0 39,0 11/17/77 1 14.0 11/24/76 0 40.0 11/17/77 1 15.0 11/24/76 0 41.0 11/17/77 1 16.0 11/24/76 0 42.0 11/17/77 1 17.0 11/24/76 0 43.0 11/17/77 1 18.0 11/24/76 0 44.0 11/17/77 1 19.0 11/24/76 0 45.0 11/17/77 1 20.0 11/17/77 1 46.0 11/17/77 1 21.0 11/17/77 1 47.0 11/17/77 1 22.0 11/17/77 1 48.0 11/17/77 1 23.0 11/17/77 1 24.0 11/17/77 1 25.0 11/17/77 1 Uni: 1 Staff Recommends Approval Unit 2 Staff Recommends Approval Approval Date Approval Date Cognizant Dept. ii2ad Cogniz.mt D2pt. dead Unit 1 PORC Rxommends Approval Unit 2 PORC Recommends Approvai / Data A} AALD Data // 97.7 [/ 'Cdirm5n of PGRC () /' Chairrmn of POHC FORC comments of ~ inc!udad PORC comments of included (date) (dale) By Date ~ By _ Dr.te 7/77 ~ 4 proval [ Date A 'Pr ~~ / Det' I 7 lgr opi.2 u ort 3 : g 2,06 2's3 Quality Assurance c Unit Superintandent q j

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2302-R3 ~ / Revision.1 11/17/77 THREE MILE ISLAf(D NUCLEAR STATION UNIT #2 SURVEILLANCE PROCEDURE 2302-R3 Radiation Monitoring System WARNING: PRIOR TO PLACING THE RMS INTERLOCK DEFEAT SWITCH IN DEFEAT, PERMISSION MUST BE GRAfiTED BY THE SHIFT FOREMAN / SHIFT SUPERVISOR, THE DEFEAT SWITCH KEY OBTAINED FROM THE SHIFT FOREMAN, AND ENTRY MADE'IN THE CONTROL ROOM LOG. l.0 PURPOSE: 1.1 To insure compliance with TMI Unit #2 Technical Specifications, l Section 4.3.3.1 which state;: "Each Radiation Monitoring Instrumentation Channel shall be demonstrated operable by the performance of the CHANNEL CALIBRATION operations during the modes and at the frequencies shown in Tab.e 4.3-3." 1.2 To insure compliance with TMI Unit 52 Technical Specification, 4.3.3.6 which requires that post-accident monitoring instrument, Reactor Building Dome Radiation Monitor, be demonstrated operable by performance of a Channel Calibration. 2.0 APPLICABLE SURVEILLANCE FREOUENCY AND fiODES Surveillance Frequency: 18 months (R) Surveillance Modes: Monitor Mode i HP-R-214 1,2,3 HP-R-215 With Fuel in Storage Pool or Building. HP-R-221B (P&G) With Irradiated Fuel in Storage Pcol. HP-R-225 & 226 (P) 6 HP-R-225 & 226 (G) 6 ~ 1.0 ~ ~ ~ ~ 206 254 i 1

2302-R3 5 Revision 1 11/17/77 HP-R-227 (P) 1, 2, 3, 4 HP-R-227 (G) 1, 2, 3, 4 3.0 LIMITS AND PRECAUTIONS 3.1 Exercise care in handling the detectors to prevent damage to: 1. Pre-Amplifier Electronics 2. Detector Cable a 3. Detector Cable Connectors 4.0 LOCATION OF ASSEMBLY _ Monitor Location HP-R-214 Reactor Building 372'7" HP-R-215 Fuel Storage Handling Bridge (FH-A-3) HP-R-221 (P&G) Auxiliary Building 328' (N Wall) HP-R-225 (P&G) Auxiliary Building 328' (SE Corner) HP-R-226 (P&G) Auxiliary Building 328' (SE Corner) HP-R-227 (P&G) Auxiliary Building 305' (SW Corner) 5.0 EOUIPMENT RECUIRED 5.1 Pulse Generator (Hewlett-Packard Modal 8005A or Equivalent). 137 5.2 Cs (No. 177) Button Source. 133 5.3 Ba (No. 133) Button Source. 5.4 Scaler (Hewlett-Pzckard Model 520ll or Equivalent). 5.5 Oscilloscope (Tektronic Model 466 or Equivalent). 5.6 10:1 Scope Probe. 5.7 Field Calibration Kit. 5.8 0-30V DC Power Supply. 6.0 PROCEDURE 6.1 Calibration check of Atmospheric Monitor Particulate Channel. -o 2.0 206 mr-ob 2 - 1 1 1

a .l 2302-R3 Revision 1 11/17/77 fl0TES: 1. Perform the following steps making no adjustments unless specifically required by the procedure steps. Record data en "As Found" Data Sheet 1. 2. Perform the following steps to reduce the background level on all Atmospheric Monitors prior to calibration. d m o 206 256 j 4 1

C' 2302-R3 Revision 0 11/24/76 1. Leave the sampler air pump running. 2. Close the sampler inlet isolation valve. 3. Slowly open the cover on the particulate sampler. herify with tissue paper, or other means that the air flow is into the sampler prior to opening the cover a significant amount. J. With the cover open, continue to ran the sampler air punp for five minutes. 5. Close the sampler outlet valve and quickly turn off the sampler air pump. 6. Calibrate '.ne appropriate monitor per Section 6.1, 6.2 atd 5.3. 7. Uoon comoleting this oracedure, return ile monitor to, normal br first closing the cat L.cusate samoler cover, and then onening the samoler isolation valves and starting the air pumo. 3. Mark the individual channel.ecorder trace to indicate where the # Abnormal" levels were imposed during this calibration. 6.1.1 Backgrour.d Radiation Readings 6.1.1.1 Obtain a copy of Data Sheet 1. 6.1.1.2 Attach the scaler (Section 5.4) to the binary of the Log Rateneter Board (between R13 and R16 or R18 and R14). Attach the ground lead to the Ratemeter Chassis. ~ 6.1.1.3 Place the readout mcdule function selector switch in the ~

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. ~ ' ' '... ~.. .... ~ ~~ -~ "0PER" positica. -- - -~-

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a 3 'N 2302-R3 Revisi n 0 ll/24/fo 6.1.1.4 Measure the background level with a 10 minute run on the scaler. Multiply the measured binary counts by 2 and divide by 10 minutes to obtain the background scaler CPM. Read the radiation level for the monitor being calibrated from the Ratemeter Module and the appropriate point on the recorder located on Panel 12; record these values along w,ith the background scaler CPM in Step 6.1.1.4 in the appropriate blocks on Data Sheet 1. 6.1.2 E.Jtton Source Readings 6.1.2.1 With the lid off the moving filter paper particulate sampler, remove the lead shielding blocks and capstan assembly from the assembly. Attach the 13'Cs (No. 177) Button Source, in the couree heldar, ts the detactor and lay the lid back vn the particulate sampler. NOTE: The detector is not taken out of the sampler. 6.1.2.2 Allow the indicated radiation level on the recorder and Ratemeter Module to stabilize. Then record the radiation level for the monitor being calibrated from the Ratemeter Module indicator and from the appropriate point on the recorder in the appropriate block of Step 6.1.2.2 cn Data Sheet 1. 6.1.2.3 Take a two minute scaler run and record the scaler CPM with the button s.>urce on the detector in the appropriate block of step 6.1.2.3. 137 6.1.2.4 Remove the Cs (No. 177) button source holder, containing the button source, from the det ctor. - 6.1. 2. 5 Carefully install the capstan assembly in _the sampler and the -~ ~ {2:1 lead shielding blocks, insure that the filter paper is around I the capstan. ~ ~ ^ 1' _ N b d"] 7 1 4.0 = 4

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k.' 2302-R3 Revision 0 11/24/76 6.1.2.6 Install the lid on the pa -ticulate sampler and latch into place. 6.1.3 Background Correction of Radiation Source Readings 6.1.3.1 Subtract the backgrour.d readings obtained in step 6.1.1.4 from the associated button source readings obtained in steps 6.1.2.2 and 6.1.2.3. Enter these results in the "Actua] Source Readings" in the appropriate blocks of Step 6.1.3.1 on Data Sheet 1. 6.1.4 Calculation of Expected Source Readings 6.1.4.1 Obtain the " Original Source Reading" and the date of the. 137 " Original Source Reading" for the Cs (flo. 177) button source from the Isotopic Calibration Test Report section of the '!ictoreen Technical Manual, and record this data on Data Sheet 1. 6.1.4.2 Calculate "t" to the nearest m' nth. "t" is the time elapsed between the " Original Source Reading" (CPM) date and the date of the source taken for this calibration. 6.1.4.3 Calculate the expected source reading using Table 1. Enter the expected source reading on Data Sheet 1. 6.1.4.4 Calculate the value of the expected source reading plus 15% ef the excected source reading and record in blocks of Step 6.1.4.4 on Data Sheet 1. 6.1.4.5 Calculate the value of the expected source reading minus 15". of the expected source reading and record in blocks of Step 6.1.4.5 on Data Sheet 1. [ ~ 6.1.5 ~~ Comparison of Actual Source Readings and the Expected Source. _~ Z7 Readiags. ~- ~ 5.0 l L206 239 R _. = _ .a 4e =we-due m&4 em

.n 2202-R3 Revision 0 11/24/76 6.1.5.1 Compare the " Actual Source Readings" with the " Expected Source Reading". The scaler value of the " Actual Source Reading" should be within + 15% of the " Expected Source Reading" value. Record this in the appropriate block of Step 6.1.5.1 of Data Sheet 1. 6.1. 5. 2 Compare the value obtained from the " Actual Sou/ce Reading" of

  • the ratemeter with the value of the " Actual Sourte Raading" of the scaler.

The " Actual tource Reading" for the scaler should be within one minor division of the " Actual Source Reading" for the ratemeter. Record this in the appropriate block of Step 6.1.5.2 of Data Sheet 1. NOTE: A minor division of the ratemeter is the distance between any "8" on the indicator and the next higher mark. 6.1.5.3 Compare the value obtained from the " Actual Source Reading" of the recorder with the value of the " Actual Source Readings" of tne caler. The reading should be within one minor division of the recorder scale. Record on Data Sheet 1. NOTE: A minor division on the recorder is the distance between any "9" on the scale and the next higher mark. 6.' l. 5. 4 If the readings do not compare within the tolerances allowed, document this as a deficiency on an "E/D" Sheet. NOTE: If any deficiencies are noted, they will be corrected ~ ._ per Section 6.1.8 of this procedure. .*e-. -em .eee.. g ..w .e o e.-.m. .w g ~.... - - - - - 6.0. T . _ ~, ~ ' ^ ^ -206 260 e .3

./ 7 2302-R3 Revision 0 11/24/76 6.1.6 Verification of " Alert" and "High" Alarm Setooints 6.1. 6.1 Enter the required " Alert" and "High" alarm setpoints in Step 6.1.6.1 of Data Sheet 1. f10TE: The alarm setpoints must be obtained from 2105-1.12. 6.1.6.2 Open the signal and 16V links at the rear of Panel 12 for the monitor being calibrated. CAUTI0ft: Adjust the pulse repetition rate of the Signal Generator (Section 5.1) to zero prior to connecting it to the ratemeter. 6.1.6.3 Connect the pulse generator to the signal input connector. and adjust the pulse generator for a negative polarity with a 1.0 volt a:cplitude, zero repetition rate, and a 1.Cu sec. pulse width. 6.1.6.4 Slowly increast: the pulse repetition rate until the " Alert" alar n light energizes. Record the ratemeter reading at which the " Alert" alarm was tr gped in step 6.1.6.4, " TRIPPED" Setpoint on Data Sheet 1. Reset all the associated alarms. 6.1.6.5 Continue to slowly increase the pulse repetition rate until the "High" alarm light energizes. Record the ratemeter reading at which the "High" alarm was tripped in Step 6.1.6.5 " TRIPPED" setpoint on Data Sheet 1. 6.1.6.6 Ccmpare the " TRIPPED" " ALERT" and "HIGH" alarm setpoints with the required setpoints which were entered in step 6.1.6.1 on Data Sheet 1. The " TRIPPED" setpoint should equal the required setpoint. The tolerance on these setpoints is plus zero, ~~ ~ minus one minor division of the ratemeter scale. See tiOTE in ~ ~ " 2-Step 6.1.5.2 of this procedure. -m -f1 =._ _ __ _ _..___ _...._..._._ _._ . _ _.. g 1.._.___. ~ ~ 7.0 ~~ ~ ~ ...u.... 1. 1 ~

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Revision 0 11/24/76 6.1.6.7 Disconnect and remove the pulse generator, then reconnect the detector signal and 16V links. 6.1.6.8 Place the function selector switch on the readout module for the monitor being calibrated in the " CAL" position. 6.1.6.8.1 Depress the " ALERT" alarm pushbutton and record the " INDICATED" ratemeter reading in Step 6.1.6.8.1 on Data Shee.t 1. Release the " ALERT" alarm pushbutton. Compare this reading with the ratemeter reading at which the " ALERT" alarm tripped in Step 6.1.6.4. The value obtained in this step must agree with the value obtained in Step 6.1.6.4. The tolerance is minus one, plus zero minor division of the ratemeter scale; see NOTE in Step 6.1.5.2 of this procedure. If the setooint is not within the tolerance allowed, document tais as a deficiency on "E/D" Sheet. 6.1.6.8.2 Depres. Lne "HIGH" alarm pushbutton and record the " INDICATED" ratemeter reading in Step 6.1.6.8.2 on Data Sheet 1. Release the "HIGH" alarm pushbutton. Compare this reading with the ratemeter reading at which the "HIGH" alarm trippr ep 6.1.6.5. The value obtained in this step must agre vn th the value obtained in Step 6.1.6.5. The tolerance is minus one, plus zero minor division of the ratemeter scale; see NOTE in Step 6.1.5.2 of this procedure. If the setpoint is not within the tolerance allowed, document this as a deficiency on an "E/D" Sheet. ~ 8.0 ^~ ~ .+- --a.- -e w e s i':. ~ ~~ ~. ~.. ~~ ~ ^^ ~ _. 2 0 6 -2 62-- --- - 3 T .~. g We.

3 ..? 2302-R3 Revision 0 11/24/76 6.1.6.9 Return the function selector switch the "0PER" position. 6.1.7 Determination of Check Source Readir 6.1.7.1 Depress the "CS" pushbutton. After

reading has stabilized, determine the number of counts per D.

ote that the reading increased above background. Record

2 value in Step 6.1.7.1 on Data Sheet 1.

3.1.7.2 Return the RMS Interlock Defeat Swi-if applicable from the DEFEAT to the NORMAL position on Par. 12. S.I.8 Deficiency Corrections NOTE: If any deficiencies were f id, they must be corrected using the calibration prot .res of Appendix A, using the applicable secti - described belcw. 5.1.8.1 If the scaler CPM does not agree wit

he recuired CFM within the tolerance specified, perform Sec ~an A.1 through A.6.

5.1.8.2 If the recorder or the panel meter c

not agree with the scaler CPM within the tolerar.re spec Eied, perform Sections A.7 and A.8.

6.1.8.3 If the alert and high alam test res..ts are out of tolerance, perform Section A.8. 6.1.8.4 If any adjustments were made, repeat. actions 6.1.1 through 6.1.8. Record the final values on a :ther copy of Data Sheet 1 marked "As Lef t". Provide copies <. these Data Sheets and "E/D" Sheets, for the deficiencies f;..:nd on the monitor being calibrated, to the H.P. Supervisor a'd to the I&C Engineer. 6.2 Calibration Check of Atmospheric Monitor C=seous Channel, [1.f.Performthefollowingstepsrakingnoadjustments l. ~ NOTES: r{ ' ~ ~ unless specifically requir:d by the procedure steps. ~ ~ g._.g .9.0 ~' -= e em

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/ 2302-R3 Revision 0 11/24/76 2. Mark the individual channel recorder trace to indicate where the "ABflCRMAL" levels were imposed during this calibration. ~ 3. Place the RMS Interlock Defeat Switch, if applicable, from the NORMAL to DEFEAT per WARNITIG page 1. 6.2.1 Background Radiation Readings 6.2.1.1 Obtain a copy of Data Sheet 2. 6.2.1.2 Attach the scaler (Section 5.4) to the binary of the Log Ratemeter Board (between R13 and R16 or R18 and R14). Attach the ground lead to the ratemeter chassis.

6. 4.1. 3 Place the readout module function selector switch in the "0PER" posi tion.

6.2.1.4 Measure the background level with a 10 minute run on the scaler. Multiply the measured binary counts by 2 and divide by 10 minutes to obtain the background scaler CPM. Read the radiation level for the monitor being calibrated from the ratemeter module and the appropriate point on the recorder located on Panel 12 and record these values along with the background scaler CPM in the appropriate block of Step 6.2.1.4 on Data Sheet 2. 6.2.2 Button Source Readings 137 6.2.2.1 Remove the detector from the sampler and attach the Cs (flo. 177) button source, in the source holder, to the detector. 6.2.2.2 Replace the detector in the well and close the outer shield door. C.2.2.3 Allowtheindicatedradiationlevelontherecorde[andratemeter 'r module to stabilize. Then record the radiation level for the 1 10.0 p g g g. t_ _ _.. _..i~__.._. . ~ u l ~~

e 2302-R3 i Revision 0 11/24/76 monitor being calibrated frcm the ratemeter module indicator and from the appropriate point on the recorder in the appropriate block of step 6.2.2.2 on Data Sheet 2. ~ 6.2.2.4 Take a two minute scaler run and record the scaler CPM with the button source on the detectoe in the appropriate block of Step 6.2.2.3. 6.2.2.5 Remove the detector and button source holder from the sampler. 37 6.2.2.6 Remove the button source holder containing the Cs (No. 177) button source frcm the detector. 6.2.2.7 Reinstall the detector in tne sampler and close and tighten shield door. 6.2.3 Background Correction of Radiation Scarce Readings

6. 2. 3.1 Subtract the background readings obtained in Step 6.2.1.4 from the associated button source readings obtai. ed in Steps 6.2.2.2 and 6.2.2.3.

Enter these results in the " Actual Source Readings" in the appropriate blocks of Step 6.2.3.1 on Data Sheet 2. 6.2.4 Calculation of Expected Source Readings 6.2.4.1 Obtain the " Original Source Read:ng" and the date of the " Original Source Reading" for the Cs (No. 177l butten source frcm the Isotopic Calibration Test Report section of the Victoreen Technicei Manual, and record this data on Dr.ta Sheet 2. 6.2.4.2 Calculate "t" to the nearest month. "t" is the time elspsed ~ between the " Original Source Reading" (CPM) date and the date T~ ~]__ _ _of the source taken for this calibration. _ _ T ! -~~ ~ Zf ~~ ~ ~ -1~- ~ 2 %.2 6 5 ] 11.0 ~, ~ ~ - - - ~ - g

2302-R3 Revision 0 11/24/76 E.2.4.3 Calculate the expected source reading using Table 1. Enter the expected source reading on Data Sheet 2. 6.2.4.4 Calculate the value of the expected source reading ples 15% of the expected source reading and record in the blocks of Step 6.2.4.4 on Data Sheet 2. 6.2.4.5 Calculate the value of tSe expected source reading mirus 15% of the 7xpected source reading and record in the blocks of Step 6.2.4.5 on Data Sheet 2. 6.2.5 Comparison of Actual Source Readings and the Excepted Source Readings. 6.2.5.1 Compare the " Actual Source Readings" with the " Expected Source Reading" The scaler value of the " Actual Source Reading". Should be within i 15% of the " Expected Source Reading" value. Record this in the appropriate block of Step 6.2.5.1 of Data Sheet 2.

6. ? 3. 2 Compare the value obtained from the " Actual Source Reading" of the ratemeter with the value of the " Actual Source Reading" of the scaler.

The " Actual Source Reading" of the scaler should be within one minor division of the " Actual Source Reaaing" of the ratemeter. Record this in the appropriate block of Step 6.2.5.2 of Data Sheet 2. NOTE: A minor division on the ratemeter is the distance between any "8" on the indicator and the next higher mark. 6.2.5.3 Compare the value obtained from the " Actual Source Reading" of ~~ the recorder with the value of the "Attual Source Readings" of - - ~ " che se:ler. int reading should be within one minor division .. +..---. . _. ~,.. " 12. 206 266 = 4 - i. "%e mn e

e />' 2302-R3 Revision 0 11/24/76 of the recorder scale. Record in appropriate block of Step 6.2.5.3 on Data Sheet 2. NOTE: A minor division on the recorder is the distance between any "9" on the scale and the next higher mark. 6.2.5.4 If the readings do not compare within the tolerances allowed, document this as a deficiency on cn "E/D" Sheet. N9TE: If any deficiencies are noted, they will be corrected per Section 6.3.8 of this procedure. 6.2.6 Verification of " ALERT" and "HIGH" Alarm Setpoints 6.2.6.1 Enter the required " ALERT" and "HIGH" alarm setpoints in Step 6.2.6.1 of Data Sheet 2. NOTE: The alarm setpoints must be obtained from 2105-1.12. 6.2.6.2 Open the signal and 161 links at the rear of Panel 12 for the monitor being calibrated. CAUTION: Adjust the pulse repetition rate of the Signal 'enerator (Section 5.1) tc zero prior to connecting it to the ratemeter. 6.2.6.3 Connect the pulse generator to the signal input connector and adjust the pulse generator for a negative polarity with a 1.0 volt amplitude, zero repetition rate, and a 1.02 sec. pulse width. 6.2.6.4 Slowly increase the pulse repetition rate until the " ALERT" alarm light energizes. Record the ratemeter reading at which the " ALERT" alarm was tripped in Step 6.2.6.4 " TRIPPED" setpoint ~ ~ ~ 'on Data Shect 2. Reset all the associated alarms. ~ '~ ~_ 33,9 ._n 206--267 s A ^ _-_.-_2 n. .,,a.~ ..m.

? 2302-R3 Revisica 0 11/24/76 6.2.6.5 Lontinue to slowly increase the pulse repetition rate until the "HIGH" alarm light energizes. Record the ratemeter reading at which the "HIGH" alarm was tripped in Step 6.2.6.5 " TRIPPED" setpoint on Data Sheet 2. 6.2.6.6 Compare the " TRIPPED" " ALERT" and "HIGH" alarm setpoints with j the required setpoints which were entered in Stgp 6.2.6.1 on Data Sheet 2. The " TRIPPED" setpoint should equal the required setpoint. The tolerance on these setooints is plus zero, minus one minor division of the ratemeter scale, see NOTE in Step 6.2.5.2 of this procedure. 6.2.6.7 Disconnect and remove the pulse generator, then reconnect the detector signal and 16V links. 6.2.6.8 Place the function selector switch on the readout module for the monitor being calibrated in the "CisL" posi tion. 6.2.6.8.1 Depress the " ALERT" alarm pushbutton and record the " INDICATED" ratemeter reading in Step 6.2.6.8.1 on Data Sheet 2. Release the " ALERT" alarm pushbutton. Compare this reading with the ratemeter reading at which the " ALERT" alarm tripped in Step 6.2.6.4. The value obtained in this step must agree with the value obtained in Step 6.2.6.4. The tolerance is minus one, plus zero minor division of the ratemeter scale; see NOTE in Step 6.2.5.2 of this procedure. If the setpoint is not within the tolerance allowed, document this as a deficiency on "E/D" Sheet. 6.2.6.8.2 Depress the "HIGH" alarm pushbutton and record the "INDICAiED" 7- _'.1-- _ ratemeter reading in Step 6.2.6.8.2 on Data Sheet 2. Release .f- ~ ~ the Ccmpare this reading wi th the ~~ ~~ _ "HIGH" alarm pushbutton. -. 14.0 ,206 o6p60 2 ~ 4, =_

3 2307-R3 Revision 0 11/24/76 ratemeter reading at which the "HIGH" alarm tripped in Step 6.2.6.5. The value obtained in this step must agree with the value obtained in Step 5.2.6.5. The tolerance is minus one, plus zero minor division of the ratemeter scale; see NOTE in Step 6.2.5.2 of this procedure. If the setpoint is not within the tolerance allowed, document this as a deficiency on an "E/D" Sheet. 6.2.6.9 Return the function selector switch to the "0PER" position. 6.2.7 Determination of Check Source Readings. 6.2.7.1 Depress the "CS" pushbutton. After the reading has stabilized, determine the number of counts cer minute that the reading increased above background. Record the value in Steo 6.2.7.1 on Data Sheet 2. 6.2.7.2 Return the RMS Interlock Defeat Switch if applicable from the DEFEAT to the NORMAL Dosition on Panel 12. 6.2.8 Deficiency Corrections NOTE: If any deficiencies were found, they must be corrected using the calibration procedures of Appendix A, using the applicable sections described below. 6.2.8.1 If the scaler CPM does not agree with the required CPM within the tolerance specified, perform Section A.1 through A.6. 6.2.8.2 If the recorder or the panel meter does not agree with the scaler CPM within the tolerance specified, perform Sections A.7 and A.8. 6.2.8.3 If the alert and high alarm test results are out of tolerance, -]-{.[ ~ --- grform Section A.8. _._ r - .E ~ ~?~ ~ ~ ~ ~ 2 1 . ~ ~ g 'j f C) -. 15.0 3_ ~.. =. ..i....~. 4

f 2302-R3 Revision 0 11/24/76 6.2.8.4 If any adjustments were made, repeat Sections 6.7.1 through 6.2.8. Record the final values on another copy of Data Sheet 1 marked "AS LEFT". Provide copies of these data sheets and "E/b" Sheets, for the deficiencies found on the monitor being calibrated, to the H.P. Supervisor and to the I&C Engineer. 6.3 Calibration Check of Area G-M Tube Monitors NOTES: 1. Perform the following steps making no adjustments unless specifically re'1uired by the procedure steps. Record data on "As Found" Data Sheet 3. 2. Mark the individual channel recorder trace to indicate where the " Abnormal" levels were imposed during this calibration. S.3.1 _ Background Radiation Readings

6. 3.1.1 Obtain a copy of Data Sheet 3.
6. 3.1. 2 Record nanitor number and check appropriate block either "As Found" or "As lef t" in Step 6.3.1.2 of Data Sheet 3.
6. 3.1. 3 Read the background radiation level for the monitor being calibrated from the ratemeter module and the appropriate point on the recorder located on Panel 12 and record these values in all the approrpiate blocks for FCK source knob closed, intermcdiate and open position in step 6.3.1.4 on Data Sheet 3.

6.3.2 Field Calibration Kit (FCK) Readings NOTES: 1. Source exposure may be minimized by becoming familiar with the operation of the FCK. 2. With the source in the open position, there is ~- -a -J _-~ ..._..-~~ - no beam shielding in the front hemisphere of n _.. _ z c---------- -- -- -- - 16. 0 . -.. -. _ -.. =.. _m. [ = x_

2302-R3 Revision 0 11/24/76 the calibrator. Check the warning decal on top of the case for radiation levels. Whenever the FCK is not in the closed position, take all readings as quickly as possible to minimize personnel exposure in the area of the FCK. 3. Radiation given off by the FCK mau cause increased indication and/or alarm on other nearby monitoring channels. This, as well as personnel exposure, should be kept in mind when performing this procedure. 6.3'2.1 Remove the area monitor (G-M Tubc) from its mounting. 6.3.2.2 Insert the area monitor into the Victoreen FCK. GM Tube adapter in the FCK. NOTE-Since the FCK is designed for the larger area monitors, the G-M tube adapter must be inserted in the FCK fi rs t. 6.3.2.3 With the source knob in the closed position (full clockwise direction and key withdrawn), record the radiation reading from the applicable ratemeter module and recorder point in Step 6.3.2.3 on Data Sheet 3. 6.3.2.4 Insert the FCK key fully into the lock. Slowly rotate the source knob on the FCK in a counterclockwise direction until it stops. This is the intermediate posi tion. Record the radiation readings on the applicabic ratemeter readout and recorder point in Step 6.3.2.4 on Data Sheet 3. . _. _ 6.3.2.5 Rotate the FCK key fully clockwise and then rotate the source . r.-- ~- ~ ~ knob in the counterclockwise direction to the final position. - ~ _ - _. _ ~. _ _ - -... _. _ _.._... .--- a. . r. - .i 17.0 >06-N1 .z

.e 2302-R3 Revision 0 11/24/76 This is the open position. Record the radiation readings on the applicable ratemeter readout and recorder point in step 6.3.2.5 on Data Sheet 3. ~ 6.3.2.6 Rotate the source knob on the FCK in the clockwise direction until the closed position is reached. Remove the key from the g FCK at this time. 6.3.2.7 Remove the area monitor (d-M Tube) from the FCK and return to its mounting. 6.3.3 Background Correction of Radiation Source Readings

6. 3.1.1 Substract the background readings obtained in Step 6.3.1.3 from the appropriate FCK readings obtained in Steps 6.3.2.3, 6.3.2.4, and 6.3.2.5.

Enter these results as the " Actual Source Readings" in Step 6.3.3.1 on Data Sheet 3. 6.3.4 Calculation of Expected Source Readings 6.3.4.1 Obtain the " Original Source Reading" for each position of the FCK Source Knob and record in the appropriate block in Step 6.3.4.1 on Data Sheet 3. 6.3.4.2 Obtain the date of the " Original Source F-Ming" an record in Step 6.3.4.2 of Data Sheet 3. 6.3.4.3 Calculate the expected scurce reading using Table 1 and record in Step 6.3.4.3 on Data Sheet 3. 6.3.4.4 Calculate the value of the expected source reading plus 15*. of the expected source reading and record in Step 6.3.4.4 on Data Sheet 3. 6.3.4.5 Calculate the value of the expected source reading minus 15% - - ~- =-

-]'_~ _ _

of the expected source reading and record in Step 6.3.4.5 on 72- _; -- ~ _ Data Sheet 3. _~ - - - - --~- l~ Z ~- - - ~ ~ ~ 18.0

- n N_

? h. ___=(-_. _ _ _ _ _. _ _ _ _ _. _. _ _.... _. _ ...-_g _3 .h-m .e -e ^_. _ _

? 2302-R3 Revision 0 11/24/76 6.3.5 Comparison of Actual and Expected Source Readings 6.3.5.1 C pare the " Actual" ratemeter module and recorder source readings recorded in Step 6.3.3.1 of Data Sheet 3 with the +15% of expected source reading and -15% of expected source reading record in Steps 6.3.4.4 and 6.3.4.5 respectively on { Data Sheet 3. The " Actual" source reading should be within +_ 15% of the expected reading, record i Step 6.3.5.1. 6.3.5.2 If the readings do not ccmpare within the tolerance allowe.d, document this as a deficiency on the "E/D" Sheet. 6.3.6 Verification of " Alert" and "High" Alarm Setpoints 6.3.6.1 Enter the required " Alert" and "High" alarm setpoints for the applicable monitor from 2105-1.12 in Step 6.3.6.1 on Data Sheet 3. 6.3.6.2 Ensure that the function selector switch on the readout module is in the "Oper" position. 6.3.6.3 Depress the " Alert Alarm Pushbutton" and record the "As Found" ratemeter module reading in Step 6.3.6.3 on Data Sheet 3. 6.3.6.4 Depress the "High Alann Pushbutton" and record the "As Found" ratemeter module reating in Step 6.3.6.4 on Data Sheet 3. 6.3.6.5 Open the signal input links at the rear of Panel 12 for the monitor being calibrated. 6.3.6.6 Connect the external power supply (Section 5., adjustable 0-3D volts) across C12 (1rEf capacitor) positive lead to ground terminal and the negative lead to the junction of R10 (5.9 megahm resistor) and Cl2. 6.3.6.i Slowly increase the DC voltage (negativel until the " Alert"_ ~' . T .[ ~~ - ~ alarm light energizes. Record the ratemeter module reading at ... _ _ _ _... - -. -. _ _. _.. = . ~. 19.0 g {f 3 _ _. r -. . ~- = .m.

4 2302-R3 Revision 1 11/17/77 which the " Alert" alarm was tripped in Step 6.3.6.7 on Data Sheet 3. Ackno,vledge the local alarm and the "RMS Trouble" alarm from Panel 12. 6.3.6.8 Continue to sicwly increase the DC voltage (negative) until f the "High" alam light energizes. Record the ratemeter module reading at which the "High" alarm was tripped in Step 6.3.6.8 on Data Sheet 3. Acknowledge the local alarm and'the "RMS Trouble" alam from Panel 12. 6.3.6.9 Compare the TRIPPED " Alert" and "High" alarm setpoints recorded in Steps 6.3.6.7 and 6.3.6.8 with the REQUIRED setpoints recorded in Step 6.3.6.1 on Data Sheet 3. The TRIPPED setpoint should equal the REQUIRED setpoint within + one minor division of the ratameter scale recorded in Step 6.3.6.9 on Data Sheet 3 6.3.6.10 If tne setpoints do not compare within the tolerance allowed, document this as a deficiency on the "E/D" Sheet. 6.3.6.11 Disconnect and remove the DC power su m te and close the signal links on the back of Panel 12. Acknowledge the local alam and the "RMS Trouble" alam from Panel 12. 6.3.7 Determination of Check Source Readings

6. 3. 7.1 Depress the C.S. pushbutton for the appropriate monitor.

After the ratameter reading has stabilized, determine the mP./hr that the reading increased above background. Record the mR/hr increase above background in Step 6.3.7.1 on Data Sheet 3 6.3.7.2 Mark the recorder trace as " Finish of 2302-R3". 6.3.8 Deficiency Corrections em 20.0 206 274 2 1 i

2302-R3 Revision 1 11/17/77 h,.3.8.1 Correct any deficiencies using the calibration procedure of Appendix B. If any adjustments are made repeat Steps 6.3.1.1 througn 6.3.7.2 and record results on "As Left" marked Data Sheet 3 6.4 Calibration check of area Gamma monitcrs HP-R-214. NOTE: 1. Perform the following steps making no adjustments unless specifically required by the procedure step. Record data on "as found" Data Sheet 4. 2. Mark the individual channel recorder trace to indicate where " Abnormal" levels were imposed during this calibration. 6.4.1 Background Radiation Reading. 5.4.1.1 Background Radiation Reading of Area Gamma Monitor HP-R-214. 6.4.1.2 Obtain a copy of Data Sheet flo. 4 and fill in detector channel number and FCK number being used. 6.4.1.3 Record the background radiation reading as indicated on the Applicable Recorder and readout module as follows: 6.4.1.4 Place the readout moduie function selector switch in the "all" position. 6.4.1.5 Read the background radiation level for the monitor being calibrated from the ratemeter module and the appropriate point on the recorder located on Panel 12 and record these values in all the appropriate blocks for FCK source knob closed, intermediate and open position in 6.4.1.5 on Data Sheet 4. CAUTION: WHEN TAKING BACKGROUND RADIATICfl READINGS, THE VICTCREEN FIELD CALIBRATION KIT (FCK) MUST BE AT LEAST TWENTY-FIVE (25) FEET FROM THE NEAREST DETECTOR.

  • O-p h

21. 206 275 i 4 ~

2302-R3 Rev'sion 1 11/17/77

  • ~

6.4.2 FCK Reading. 6.4.2.1 Radiation Source Peadings. NOTES. 1. Source exposure may be minimized by beccming familiar with the operation of the FCK. 2. With the source in the open position, there is e no beam shielding in the front hemisphere of the calibrator. Check the warning decal on top of the case for radiatisn levels. Whenever the FCK is not in the closed position, take all rcadings as quickly as possible to minimize personnel exposure in the area of the FCK. Radiation given off by the FCK may cause an indication or alarm on other nearby monitoring channels. This, as wel' as possible personnel exposure, should be kept in mind when performing this test procedure. 3. Radiation given off by the FCK may cause increased indication and/or alarm or other nearby monitoring channels. This, as well as personnel exposure, should be kept in mind when performing this p rocedure. 6.4.2.2 Remove the detector from its mounting bracket. 6.4.2.3 Insert the detector into the Victoreen Field Calibration Kit. (FCK). 6.4.2.4 Record in step 6.4.2.4 of Data Sheet 4 the radiation reading ~ ~ on the recorder and readout module meter. The source knob must be in the closed position (full clockwise d.rection). ~ 206 276 l

~ 2302-R3 Revision 1 11/17/77 Insert the key fully into the lock. Do not turn the key at this time. 6.4.2.5 Sicaly rotate the source knob on the FCK in a counterclockwise direction until it stops. Tais is the intermediate position. Record the radiation reading on the applicable recorder and e readout module meter in step 6.4.2.5 of Data Sheet 4. ~ .4.2.6 Now rotate the key fully clockwise and then rotate the source kn,ob in the counterclockwise direction to the final stop position. This is the open position. Record the reading on the Applicable Recorder & readout module meter in step 6.4.2.6 of Data Sheet 4. 6.4.2.7 Rotate the source knob on the FCK in the Clockwise directicn until the closed button is reached. Remove the key from the FCK at this time also. 6.4.2.8 Remove detector from FCK and return to its mounting. 6.4.3 Bzckground Correction of Radiation Source Readings. 6.4.3.1 Subtract the background radiation reading obtained in step 6.4.1.5 from each of the Radiation Source Readings obtained in step 6.4.2.4, 6.4.2.5 and 6.4.2.6. Enter the results in the " Actual Source Reading" blanks in step 6.4.3.1 of Data Sheet 4. NOTE: When determining the corrected radiation reading, disregard the background radiation level if it is less than 5% of the measured radiation level in either the closed, intermediate or open positions. 6.4.4 Calculation of expected source readings. ~ ~ 6.4.4.1 Obtain " Original Scurce Reading" and date of " original source reading" and record these in step 6.4.4.1 cn Data Sheet 4. 206 277 ~ j 23.0 4 f

~ 23D2-R3 Revision 1 11/17/77 6.4.4.2 Calculate "t" to the nearest month. "t" is the time elapsed between the " Original Source Reading" date and the date of the source readings taken for this test. 6.4.4.3 Cliculate expected source reading using Table 1 and record in step 6.4.4.3 on the Data Sheet 4. 6.4.4.4 CalCJlate the value of the expected source reading plus 15% of d the expected source reading and record in step 6.4.4. 0 en Data Sheet 4. 6.4.4.5 Calculate the value of the expected source reading minus 15% of the expected sou,ce reading and record in step 6.4.4.5 on Data Sheet 4. 6.4.5 Ccmparison of Actual and Expected Source Readings. 6.4.5.1 Compare the " Actual" ratemeter module and recorder source ., readings recorded in step 6.4.3.1 of Data Sheet 4 with the +15% of expected source reading and -15% of expected source l readir.g recorded in step 6.4.4.4 and 6.4.4.5 respectively on Data Sheet 4. The " Actual" scurce reading should be within +15% of the expected reading, record in step 6.4.5.1 on Data Sheet 4. 6.4.5.2 If the readings do not compare within the tolerance allcwed, document this.as a deficiency on the "E/D" sheet. 6.4.6 Verification of " Alert" and "high Alarm" setpoints. 6.4.6.1 Enter the required " Alert" and "High Alarm" setpoints for the applitable meritor from 2105-1.12 cn Data Sheet 4 in step 6.4.6.l. 6.4.6.2 Place function selector switch en readout modale in the "all" position. 206 278 24. .~.-- =~~.

e ~ 2302-R3 Revision 1 11/17/77 6.4.6.3 Depress the " Alert Alarm Pushbutton" and record the "As Found" rate meter reading in step 6.4.6.3 on Data Sheet 4. Compare this reading wi.th the setpoint recorded in step 6.4.6.3. If any difference exists, adjust R30 until the ratereter indicates the alert alarm setpoint as recorded in step 6.4.6.3 on Data e Sheet 4. Release the " Alert Alarm Pushbutton". 6.4.6.4 Depress the "High Alarm Pushbutton" and record the "As Found" ratemeter reading in step 6.4.6.4 cn Data Sheet 4. Ccmpare this reading with the setpoint recorded in step 6.4.6.1. If any difference exists, adjust R20 until the ratemeter indicates the high alarm setpoint as recorded in step 6.4.6.1. Release the ' 9igh Alarm Pushbutton". 6.4.6.5 Cpen the signal and 14V links at the rear of Panel 12 for the channel in test. 6.4.6.6 Connect the DC Power Supply to the signal input connector and adjust the DC Power Supply for zero volts, negative ground and positive signals.

6. 4. 6. 7 Slowly increase the DC voltage until the " Alert Alarm Light" energizes.

Record the ratemeter reading at which the " Alert Alarm" was tripped in step 6.4.6.7 on Data Sheet 4 Reset all a l a rms. 6.4.6.8 Continue to slowly increase the CC voltage until the "High Alarm Light" energizes. Record the ratemeter reading at which the "High Alarm" was tripped in step 6.4.6.8 on Data Sheet 4. ~ Reset all alarms. l

e ~ 2302-R3 Revisicn 1 11/17/77 6.4.6.9 Compare the TRIPPED " alert" and "high alarm" trip setpoints of step 6.4.6.7 and 6.4.6.8 with the REQUIRED setpoints which were entered in step 6.4.6.1 on Data Sheet 4. The TRIPPED setpoint should equal the REQUIRED setpoint with + one minor division of the ratemeter scales recorded in step 6.4.6.9. If I the setpoints do not compare within the tolerance allowed, document this as a deficiency on the "E/D" sheet. 6.4.6.10 Di,sconnect and remove the DC power supply and close the signal and 14V links. 6.4.7 Determination of check source reading. 6.4.7.1 Place the function selector switch in the "CS" position. After the reading stabilized, determine ~the MR/hr. tt.at the reading increased above backgrcund. Record the reading in step 6.4.7.1 on Data Sheet 4. NOTE: If the indicated raciation level is greater than twicu the radiation level which the check source should exhibit, no significant increase from check source actuation will be observed. 6.4.7.2 Mark the recorder trace as " Finish of 2302-R3". 6.4.8 Correct any deficiencies using the calibration procedure of Appendix C. If any adjustments are made repeat steps 6.4.1 through 6.4.7 and record results on "As Left" Data Sheet 4. o e-e 206~280-26.0 14 Y

-l ',. !! 2302-R3 !l, DATA SHEET I Revision 1 RADIATICf4 MONITORiflG SYSTEM i 11/17/77 Procedure l Step lifR 6.1.1.2 M0flITOR HP-R-P AS FOUND AS LEFT INT D E O DESCRIPTI0fl SCX ER liffT. t - f1 R ItilT. RECORDER INIT-i 6.1.2.3 6.1. 2. 2 - Source CPM CPM CPM i 6.l.1.4

Background

CfM CPM CPM 6.1.3.1 Actual Source Rsadings CNC CPM CPM 6.1.4.1 Originai Reading CPM 6.1.4.1 Original Reading D_ ate ~ 3 1.4.3 _ Expected Reading CP}t-~ rP_M CPM 6.1.4.4 +15% of Expected Reading CPM LPM CPM 6.1.4.5 -15% of Expected Reading CPM CPM CPM 6.1.5.1 t 15% xp Comparison of Expected 6.1.5.2 and Source Reading with 6.1.5.3 Ratemeter and Recorder ~ Reading Per 6.1.5.2 & 6.1.5.3 /- X Setpoint Data =- ALERT I flT. H fG'll INT. 0*l*0*I llequired Setpoint TLT C1.6.8.1 Indicated 111 - 6. 1. 6. 8. 2 Setpoint CPM CPM XL-6.1.6.4 " Tripped" l 111 - 6. 1. 6. 5 Setpoint CPM CPM Tripped Setpoint within one i I 6.1.6.6' flinor Division of Required Yes/ilo CPM CPM 'X ~Cimck Source, Recorder, Acceptance Criteria, Sign-0Tf F- ~ 5 1 7.1 Diiserved Increase in Reading Due to Check Source CPM ItiT. N ~ltecorder Trace Marked l es/flo j IrifT. l,O O cceptance Criteria: All Yes/flo Blanks Indicate '"Yes"

    • Record " Pegged" i f Meter Pegs High Due to Background.

' N' PERFORMED BY APPROVED BY .,i I AND DATE: AND DATE: l .l l l i i 'I .i!, 2/.0 .., a.... _

v.,,,. DATA SilEET 2 2302-R3 RADIATI0fl M0filTORIflG SYSTEM Revision I 11/17/77 Procedure Step RECORDER 1 RACE 6.2.1.2 MONITOR llP-R-G ] AS FOUND AS LEFT INT MARKED YES/fl0 READIllGS DESCRIPTION SCALER INIT. RETEMETER I fill. RECORDER IfiTTT 6.2.2.2 Source CPM CPM CPM 6.2.1.4

Background

CPM CPM CPff 6.2.3.1 Actual Source Readings CPM _ CPM CPf1 6.2.4.1 Original ReadTng CPff ~~ ~ 6.2.4.1 Original Reading Date ~ 6.2.4.3 Expected Reading CPff CPM CPM 6.2.4.4 +15% of Expected Reading CPri CPM fi'M 6.2.4.5 -15% of Expected Reading CF4 CH4 CPM i 6.2.5.1 t1 15. x ec Yes/No Comparison of Expected 6.2.5.2 Source Reading with Ratemeter and Recorder Reading Per 6.2.5.2 Yes/No X_ Setpoint Data ~ ~ ~~ 6.2.6.1 Required Setpoint AL-6.2.6.8.1 Indicated 111 - 6. 2. 6. 8. 2 Setpoint CPM CPM AL-6.2.6.4 " Tripped" 11 I - 6. 2. 6. 5 Setpoint CPM CPM Tripped Setpoint within one 6.2.6.6 Minor Division of Required Yes/No CPM CPM ,X -Check Source, Recorder, Acceptance Criteria, Sign-Off {~ ' 6.2.7.1 Observed Increase in Reading Due to Check Source CPM I fi f. Recorder Trace Marked Yes/flo [ IITIE Acceptance Criteria: All Yes/flo Blanks Indicate "Yes"

    • Record " Pegged" if Meter Pegs High Due tn Background.

N co PERFORMED BY APPROVED BY A"D DATE: AND DATE: N i ~ 28.0

.,. m. Ren{sion 1 30 R3 DATA SdEET 3 RADIATI0tl f t0tlITORIllG SYSTEM 11/17/77 Procedure Step 6.3.1.2 M0f1ITOR llP-R-AS FOUND AS LEFT f If11 y3 FCK SOURCE Kil0B POSITI0t1 CLOSLD INTERMEDIATE OPEll DESCRIPTION ITATAMLIER INI RECORDER ~ 6.3.2.3 ~Ifil RATAMETER INT RECORDER INI llATAMETER Ifli IRDitDER TITI 6.3.2.4 6.3.2.5 Source MR/hr MR/hr f1R/nr MR/hr MR[hr MR/hr 6.3.1.3

Background

MR/hr - Mif/lir MRhr - MR/hr MR/hr - MR/hr 6.3.3. Actuai Source Readings MR/hr MR/hr MR/hr MR/hr MR/hr MR/hr MR/hr 6.3.4.1 Original Reading MR/hr t MRfhr ~~ 6.3.4.2 Original Reading Date 6.3.4.3 Expected Reading MR7Iir ~~ MR7I1r fir /hr 6.3.4.4 FlS% of Expected Reading MR/hr MR/hr MR/TiF 6.3.4.5 -15% of Expected Reading MR/hr ,MR/hr Mi?/hr Actual Source Reading e 6.3.5.1 within 15% of Expected? Yes/flo X Setpoint Data ~ ALERT INT llIGil Illi 6.3.6.1 Required Setpoint AL-6.3.6.3 " Indicated" III-6. 3. 6. 4 Setpoint f1R/hr MR/hr Al-6.3.6.7 " Tripped" 11 1 - 6. 3. 6. 8 Sctpoint MR/hr f1R/hr Observed Setpoint Within One 6.3.6.9 Minor Division of Required Yes/No X Check Source, Recorder, Acceptance Criteria, Sign-Off 6.3.7.1 Observed Increase in Reading liue to Check Saurce _ f1R/hr lIfi 6.3.7.2 Recorder Trace Marked Yes/No I* IIil l. Acceptance Criteria: All Yes/No Blanks Indicate "Ye3". n,f

    • Racord "Pe'1ged" if Meter Pegs Iligh Due to Background cb PERFORMED BY APPROVED BV N

Af10 DATE: AND DATE: c.o u: /, - 29.0 L

2302-R3 l DATA SitEET 4 Revision 1 RADIATION MONITORING SYSTEM 11/17/77 -f Procedure Step R ER McE [ AS FOUt1D { AS LEFT INT 6.4.1.2 MONITOR HP-R-2i4 p FCK SOURCE KNOB POSII10fl CLOSED ITTIERMEDIATE CPEN DESCRIPTION RATAMETER INI 6.4.2.4 RECORDER INT RATAMETER INT RECORDER INT RATAMETER INI -RECORDER INT 6.4.2.5 6.4.2.6 Source MR/hr MR/hr MR/hr MR/hr MR/hr MR/hr 6.4.1.5

Background

MR/hr - MR/hr MR/hr - MR/hr MR/hr - MR/lir 6.4.3.I Actual Source Readings MR/hr MR/hr MR/hr MR/hr MR/hr, MR/hr E4.4.1 Original Reading MIT/Iir MIT/hr Mifflir 6.4.4.I Original Reading Date 6.4.4.3 Expected Peading MIT/liF MR/hr MR/liF 6.4.4.4 +15% of Expected Reading MR/hr MR/hr MR/hr 6.4.4.5 75% of ExpecteTiteaing idif/fiF MIT/Tir PR71ir Actual Source Reading l* l 6.4.5.1 within 15% of Expected? Yes/No Setpoint Data ~1NT ALERT INT HIGH 6.4.6.1 Required Setpoint AL-6.4.6.3 " Indicated" 11 I - 6. 4. 6. 4 Setpoint MR/hr MR/hr AL-6.4.6.7 lripped" HI-6.4.6.8 Setpoint MR/hr MR/hr Observed Setpoint Within One 6.4.6.9 Minor Division of Required Yes/No Check Source, Recorder, Acceptance Criteria, Sign-Off 6.4.7.1 Observed increase it. Reading Lue to Check Source MR/hr INT IIIT f. 6.4.7.2 Recorder Trace Marked Yes/lo Acceptance Criteria: All ies/No Blanks Indicate "Yes". N

    • Record " Pegged" if Meter Pegs High Due to Background CD D

PERFORMED BY APPROVED BY AND DATE: AND DATE: g e 30.0 I

e ~ 1 2302-R3 Revision 1 11/17/77 TABLE NO. 1 UNIVERSAL DECAY TABLE The foilowing table gives the fraction of activity of a nuclide NOTE: remaining, from 0.001 half-life to 1.000 half-life. To use t:lis table: 1. Divide elapsed time by the half-life (t/Tb). Time must be in t41e same units. 2. With the answer obtained in Step 1, enter appropriate row along the sitie and the column at the top. The number obtained is the fraction of original activity remaininc. 3. l'ultiply the original activity by this figure to obtain the present activity (or the amount remaining). 133 t0TE: The hal f-life of Ba is 126 months. Decay Ba to the nearest month cnly. l33 Example: If a Ba source was cross calibrated on 4/72, wnat would the decay factor be on 9/74 (it has decay 29 months). 20 C.2001 126 126l 29. 000 0.230 = = 25.2 3.80 3.78 .02 Checking the Universal Decay Table, one would multiply 133 the original activity of the Ba source on 4/72 by 0.85266 to obtain the activity value on 9/74. ~ :_..~' : ::: ...... ~.. : :~ '..... : L. : ~ ^ '. ~ L ~;_ ._~ _ -_ _~

_ ^..
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2302-R3 ~ Revision 1 11/17/77 W ENDIX A ATMOSPHERIC MONITOR CALIBRATION WARNING: Prior to placing the RMS interlock defeat switc.'., if applicable in defeat, permission must be granted by the Shift Supervisor / Shift Foreman, the defeat switcn ':r', h obtained from the Shift Foreman, and entry made in the Control Room Log. A.l.0 iEST SETUP. 1.1 Inform Shift Supervisor of work to be accomplished. 1.2 Obtain and warm-up equipment, Fast rise oscilloscope, pulse ' generator (low output impedance), DVM and scaler are needed. 1.3 Turn applicable Bypass Switch to OEFEAT. . 1.4 Turn ratemeter function switch to OPER. l.5 Slide ratemeter from Panel 12 far enough to ma e internal connecticas. 1.6 For Iodine channels, place to:-'e switch 56 in the DIFFERENTIAL -- position. Green Failure Light should be ON. A.2.0 DISCRIMINATOR VOLTAGE ADJUSTMENT 2.1 Open 16V link and signal link to the detector (. located at rear of Panel 12) 2.2 For Iodine channels, place toggle switch on the analyzer board in the GROSS position. 2.3 Connect oscilloscope ground lead to rateneter chassis. Connect signal lead to ratemeter function switch blue wire (front deck, terminal No. 12). ~ ~ tr e m*-. T-Nh. pp-e. .gg g y e, .2 { _ __ _ ___.._.:.~__ 4 l., z :__. - 34.0 = - - - - _.. =. =... .=. = _.. ...] ~.

2302-R3 Revision i 11/17/77 2.4 Connect pulse generator ground lead to ratemeter chassis. Connect signal lead to ratemeter function switch blue wire. Set up the pulse generator as follows: Repetition rate - Approximately 10,000 pps. Polarity negative pulse Pulse Wii ip sec. Amplitud: - refer to applicable Calibration Data Sheet in the Victoreen Technical Manual, "IS0 TOPIC CALIBRATION TEST REPORT". This voltage is identified as " CLIP". NOTE: Set this vcitage as accurately as possible using the oscilloscope. 2.5 Adjust Discriminator Adjust potenticmeter R3 on the log ratemeter board until the ratemeter just begins to count. 2.6 Disconnect pulse generator and osc.lloscope and reconnect 16V and signal links for the detector. A.

3.0 BACKGROUND

MEASUREMENT J.1 Connect scaler input, using high impedance probe (Section 5.5) to binary of log ratemeter board (842 30} between R13' and R16 or between R18 v R14. Connect scaler ground lead to ratemeter chassis. 3.2 Reset scaler to zero and count for 10 minutes. Mul tiply binary counts obtained by 2 and divide by 10 to obtain CPM. Record this value for later use. A.4.0 CALIBRATION SOURCE MEASUREMENT _ ' _.~~ ~ _ _ _ ~ * ', _ _

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g 2302-R3 Revision 1 11/17/77 4.1 Determine the calibration sot. 'ce to be used as follows: HP-R P 137Cs (No. 177) HP-R G 137Cs (No. 177) 4.2 Refer to " CAL. SOURCE DATA" section of the Victoreen Technical Manual. Connect calibration source per applicable illustration. h 4.3 Reset scaler to zero and count for 2 minutes. hecord CPM for later use. A.5.0 CALCULATION OF EXPECTED AND REQUIRED CPM. 5.1 Refer to "ISOTCPIC CALIBRATION TEST REPORT" section of the Victoreen Technical Manual. Use the applicable Calibration Data Sheet to determine original CPM for the calibration source in the sampler and original date. (For Iodine channels, use " Gross Counting Position" data). NOTE: Determine decay time to the nearest month and use Table No. 1 to determine current " expected" CPM. Add the background counts obtained in Section A.3.0 to determine " required" CPM. Record " expected" and " required" CPM for later use. A.6.0 HIGH VOLTAGE CORRECTION. 6.1 Alternately adjust high voltage (using High Voltage Adjust Potenticmeter Rll5 on the Power Supply Board) and take 0.2 minute scaler runs until measured CPM readings are repeatable with + 3% of the " required" CPM frcm Section A.5.0. Take a 2 minute scaler run to verify results. ~ CAUTION: DO NOT EXCEED 1400 VDC. e m.-_. .m. =w e.., --_mn,. l2 36.0 . _.. _ = . -: =- 2- =. = _ _ f ~~~

2302-R3 Revision 1 11/17/77 6.2 Remove calibration source and take a 10 minute background run to ensure that H.V. adjustments have not altered background CPM enough to invalidate the + 3". agreement. A.7.0 LOG RATEtiETER BOARD CALIBRATION. 7.1 Open 16V and signal links at rear of Panel 12. s

7. 2 For Iodine Channels, ensure 56 is in the GROSS position.

7.3 Adjust the Zero Set Potentiometer R36 until the panel meter reads approximately 1/4" below the 10 CPM mark.

7. 4 Connect pulse generator ground lead to ratemeter chassis.

Connect signal lead to function switch blue wire. 7.5 Coanect oscilloscope ground lead to ratemeter chassis. Connect signal lead to function switch blue wire. 7.6 Set Pulse Generator as follow 2: Repetition Rate: Approximately 10,000 pps Amplitude: 1 volt Pulse Width: Ia sec. Pulse Polarity: Negative (-) NOTE: The scaler should be used to ensure nrocer setting of the pulse generator throughout this section. Connect ground lead to ratemeter chassis. Connect signal lead to function blue wire. 5 7.7 Adjust the output control R38 until the meter reads 10 CPM. .=m-WP= em

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'c - I 2302-R3 Revision 1 11/17/77 3 7.8 Adjust the pulse generator repetition rate to 10 CPM. 3 7.9 Slightly adjust the zero control R36 until the meter reads 10 CPM. 0 7.10 Adjust the pulse generator repetition rate to 10 CPM. 6 6 7.11 Adjust C19,10 CPM control until the meter reads 10, Due to the interaction it may be necessary to switch between 3 5 6 10, 10 and 10 several times, adjusting their respective controls until the optimum span is achieved. 6 7.12 Decade all ranges from 10 through 10 to insure proper spanning. 7.13 Adjust the pulse generator for a one (1) KHz pulse repetition rate and check Log Rate. eter for proper operation, the reading should fall on the black ' CAL' mark a 6X10 CPM. 7.14 Connett oscilloscope to the junction of R39 and R40, which is the output of the calibraticn oscillation. 7.15 Adjust calibration freq 2ency control R45 for 1 msec between pulser. 7.16 Turn.he function switch to the " Cal." position. The meter indict. tion should be on the " Cal." mark of the scale. A.8.0 ALARM BC1RD CALIBRATION e.1 Reset the pulse generator for zero amplitude. 3.2 Set R205 and R214 to the extreme clockwise position. 8.3 Adjust R234 until both alarms (High and A!ert) energize, then slowly back off until one or both just de-energize. 8.4 Set R205 and R214 to the extreme counter-clockwise position. ~ ~~ .:_h.~" Y..:.. :_- _ = = --- ~~' ~ --. ~ - 3 8. 0 .l 2 0 E29T._._. =... .;--~~-._~ .. _ : q _m . _ m _.__ -.___. _. _. _ _.. _ .. es ~ e. . [.

2302-R3 Revision 1 -. 8.5 Set the Pulse Generator,for: li/17/77 Repetition Rate: Approximately 10,000 pps Amplitude: 1 volt Pulse Polarity: flegative (-) Pulse Width: ' ~~ ~1a sec. 8.6 Decrease in a clockwise direction the settings of R205 (High) e and R214 (Alert) alarm set-point controls until alarms energize. 8.7 Decre'se the repetition rate of the H nal generator slightly to de-energize the alarm (s) then slowly increase, noting that b the alarm (s) energize a+ preci< 'y 10 CPM on the meter scale. 8.8 Set the signal generator for a count rate below the alarm set-point to de-energize the alarms. 8.9 Switcn the Function Selector to the " CAL" position. 8.10 Depress the front panel pushbutton,~or the HIGH and ALERT ~~ alarms alternately, and adjust R209 (High) and R229 (Alert) ~ ~ alarm meter calibration control for a meter raading of exactly 5 10 CPM on the scale. 8.11 Due to slight loading effects, it may be necessary to repeat Steps 5 through 10 for optimum cal'bration of the alarms. 8.12 To make ALARM SET P0ItiT adjustments, proceed as folicws: a. Reset the input signal generator to zero amplitude. b. Switch the Function Selector to the " CAL" position. c. Depress the HIGH alarm pushbutton and adjust the High alarm set-point control (R205) until the meter indicates the desired CPM on the scale. d. Depress the ALERT alarm pushbutton and adjust the Alert ~ ~ n. _ __ _. _. alarm set-point control (R214) until the meter indicates ._,c. .n _.. ._. the desired CPM on the scale. . _;. : n_ -r. e ..m .m e ..m. 3 __ = - __ _ - l j i 39.0 , - =..

2302-R3 Revision 1 11/17/77 APPENDIX B G-M AREA MONITOR CALIBRATION B.1 READOUT MODULE CALIBRATION. B.l.1 Power Supply. B.1.1.1 Obtain and warmup equipment. Oscilloscope (section 5), f digitial voltmeter (section 5) and power supply (section 5). B.1.1.2 Turn the function switch to the "0PER" position. B.I.l.3 Place the digitial voltmeter across the +10V and ground terminais on the back of the appropriate monitor or place the positive lead between R13 and R17 and the negative lead to ground. Adjust R14 (2Kn potentiometer) until voltmeter reads #10.01 0.1 vol ts. B.1.1.4 Place the digitial voltmeter across the +22V and ground terminals on the back of the appropriate monitor or place the positive lead between R1 and R4 and the negative lead td ground. The voltmeter should read +22VDC i SVDC. B.1.1.5 Place the digitial voltmeter across the -6.SV test point and ground. The voltmeter should read -6.8 VDC + 0.5 DC. B.1.1.6 Place the digitial voltmeter across tne +600 VDC and ground terminals on the back of the appropriate monitor or place the positive lead at the junction of R24 and C21 and the negative lead to ground. The voltmeter should read +600VDC + 16VDC. B.1.2 Log Count Rate Calibration. B.1.2.1 Turn the function switch to the "0FF" position. B.1.2.2 Adjust the mechanical 7ero adjustnent for the first graduation . _ _ _..n n;;-l.-___ .. _...._ r_ :

f..

.. on the meter. =-. =- 1... _ -. Z.' _Z. .A-Z - ' - ~ ~ ~ ' z. 2D 6 ' & 7 40.0 ~ ~~ ~~~ ~ ~ ' ~ ~ ~ ~ i = .= ._1_. = -. _

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I a 2302-R3 Revision 1 11/17/77 B.l.2.3 Turn the function switch to the "0PERATE" position. B.1.2.4 Obtain ORIGINAL SOURCE readings of field calibration kit found in Table 2. B.l.2.5 Correct these original source readings for time using Table 1 and record as " Expected" Readings. e NOTES: 1. Source exposure may be minimized by becoming familiar 4 with the operation of the FCK.

2. With the source in the open position, there is no beam shi21 ding in the front hemisphere of the calibrator.

Check the warning decal on the top of the case for radiatica levels. Whenever the FCK is not in the closed position, take all readings as quickly as possible to minimize personnel exposure in the area '~ of the FCK. Radiation given off by tha FCK may cause an indication or alarm on other nearby monitoring channels. This, as well as possible personnel exposure, should be kept in mind when performing thfe procedure. B.I.2.6 With the ratemeter and detector energized, take a background reading from the ratemeter and record. NOTE: When taking background measurements, ensure the FCK is greater than 25 feet from the detector. B.l.2.7 Remove the area monitor (G-M Tube) from its mounting. B.l.2.8 Insert the area monitor into the Victoreen FCK G-M Tube Adapter in the FCK. NOTE: ...Since the FCK is des'gned for the larger area mcnitors ~ ~.-.- (Icn-Chambers), the G-M tube adapter must be inserted = -. - _ in the FCK first. - n / 0$):.f?3_.--._-- ~~ - 41.0 ~-\\h =. ~.. = .= -m -...--.--: = w,e sm-. w. .s-- _ =, g

2302-R3 Revision 1 11/17/77 B.l.2.9 Insert the FCK key Tully into the lock. Slowly rotate the source knob on the FCK in a counterclockwise direction until it stops. This is the INTERMEDIATE position. Record the radiation readings caf the applicable ratemeter readout. B. l. 2.10 Compare the readings taken in step B.l.2.9 with the expected source readings found in step B.l.2.5 and insurf that the reading is within 110% of the expected reading. If not. adjust (R21) output adjust (Hi End) to bring the meter reading into :pecification. B.l.2.ll Rotate the source knob on the FCK in the clockwise direction until the CLOSED position is reached. Record the radiaticn readings of the applicable ra'.emeter readout. B.l.2.12 Compare the readings taken in step B.l.2.11 with the expected source readings found in step B.l.2.5 and insure that the reading is within 110% of the expected reading. If not adjust (R12) output adjust (Lo-end) to bring the meter reading into specification. B. l. 2.13 Slowly rotate the source kncb cn the FCK in a counterclockwire direction until it stops. This is the INTERMEDIATE position. Record the radiation readings of the t.pplicable ratemeter readout. B.l.2.14 Compare the readings taken in step B.l.2.13 with the expected source readings found in step B.l.2.5 and insure that the reading is within 110% of the expected reading. If not, adjust (R21) output adjust (Hi end) to bring the meter reading -r into specificaticn. r.- -, ~ - '-- U.-. [ ~ - ~ " " ^ " ~ ~ - 42.0 = - ' ' ~ O-- ~~ ~~ ~ ' ~ '] _]

2302-R3 Revision 1, 11/17/77 B.l.2.15 Slowly rotate the FCK key fully clockwise and then rotate the source knob in the courterclockwise direction to the final position. This ir the OPEN position. Record the radiation readings of the applicable ratemeter readout. B.l.2.16 Compare the readings taken in step B.l.2.15 with the expected source readings found in step B.l.2.5 and insur,e that the reading is within +10% of the expecu d reading. If not, adjust (C23) to bring the meter reading into specification. B.l.2.17 Repeat steps B.l.2.9 through B.l.2.16 until the readings fall in specification. B.l.3 ALARM BOARD CALIBRATION ~ B.l.3.1 OPEN the 120V AC power sliding links in the back of Panel 12 for the appropriate monitor. B.l.3.2 Remos e one end of jumber "B" bet'.eeen R48 and the junction of CR24 and C25 on the side board. NOTE: Removing this jumper Nill place the alarm in the automatic reset mode. B.i.3.3 Disconnect the signal input from the detector. NOTE: This may be done by opening the apprcpriate sliding links in the rear of Panel 12 or by removing the detector signal input from the rear panel of the readout module. B. l. 3. 4 Adjust the readout module front panel meter mechanical ::ero to the first left hand graduation on the meter scale. 3.1. 3. 5 Connect the external power supply to the signal input and [~ ' h -- ~~ ~ ~ ignal ground terminals at the rear of the readout module or ~ s at the open links for the signa, input and signal ground in the ~ 2- ~ " - 'g g 6 ,[., /. rear of Panel 12. =. _ _ _ e = - - 43.0 .~ ~.. i ~I

s, 2302-R3 Revision 1 11/17/77 B.1.3.6 CLOSE the 120V AC power sliding links in the back of Panel 12 for the appropriate monitor. B.l.3.7 Turn the function switch to the OPER position. B.l.3.3 Turn and hold the function switch to the ALARM position. l B.l.3.9 Depress the ALERT alarm pushbutton and adjust (R37), on the e side board, ALERT alarm setpoint potentiometer'to the desired MR/hr reading on the meter scale. B.l.3.10 depress the HIGH alarm pushbutton and adjust (R37), on the main board, HIGH alarm setpoint potentiometer to the desire MR/hr reading on the meter scale. B.1.3.11 Increase the external power supply voltage to insure that the ALERT and HIGH alarms energize properly. B. l. 3.12 Disconnect the D.C. power supply and reconnect tne signal input. 8-m .e% .m. ~], _ ~, ~ ' ' ' _,, ~,,' 7___~_.~_ .__.Z.._~~_'._.____..___. ~ ~ ~ - - - - - - ~ ~ ~ ~

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_ _.--- l-_ __ _:~. - _ __.-__~-_ ~ ~___ __ _. ~~ - ~ ~ =7 --= "='- - 44.0 'u = = _.]

~ 2302-R3 Revision 1 11/17/77 WARNING: PRIOR TO PLACING RMS INTERLOCK DEFEAT SWITCH IN DEFEAT, PERMISSION MUST BE GRANTED BY SHIFT SUPERVISOR AND ENTRY MUST BE MADE IN CONTROL ROOM LOG. APPENDIX C CALIBRATION PROCEDURE FOR GAMMA UNITS (ION CHAMER-HP-R-214) ? NOTE: If proper results cr.nnot be obtained in steps below, troubleshoot, replace, and/or repair the instrument using an approted Work Request, and repeat all steps i in this calibration. C.l.0 TEST EQUIPMENT REQUIRED Oscilloscope - preferrably dual trace, sensitivity Imv/cm. Digital Voltmeter - Fluke 8100A or equivalent. Field Calibration Rig - (for Detector CALIBRATION). 0-8.11 Volt Pcwer Supply - for readout and alarm checkout. C.2.0 Attempt to bring readings in specification utilizing the FCK, and adjusting R41 on the low amplifier board with FCK in the closed position and R41 on the high alarm board with the FCK in the open position. If detector does not ccme into specification proceed with calibration of readout module. C.3.0 CALIBRATION OF READOUT MODULE 3.1 Voltage Regulator Adjustment: Place Digital Voltmeter across +14 volt and grcund terminals on the rear terminal strip. Adjust R44 until voltmeter reads 14 20.1 volts. 206 ^"06299 45.0 I

~ 2302-R3 Revision 1 11/17/77 3.2 Expanded Range Meter Bias Voltage Adjust: Adjust R9 for 5 +.01 volts at the point between R9 and Rll to ground. 3.3 With power off, adjust mechanical zero adjustment for the first graduation en the meter. e C.4.0 CALIBRATIGN OF THE DETECTOR (BENCH CAL.) d 4.1 Turn readout module off. 4.2 Rqpove outer shield of detector; keep detector cable connected. 4.3 Remove the two amplifier boards. 4.4 Turn readout module on. 4.5 Place an oscilloscope at pin IF to calibrcte the timing generato'.. 4.6 Adjust R4 so the pulse rate of signal at pin 1F is 3 pss by oscilloscope. 4.7 Adjust RI4 to zero on the meter incication of readout module. 4.8 De-energize power on ratemeter. 4.9 Place low range amplifier board into detector. 4.10 Re-energize power on ratemeter. 4.11 Insert detector into field calibration kit with FCK in OPEN position. 3 4.12 Adjust R26 on auxiliary board until meter reads 9 X 10 mR/ hr. 4.13 De-energize power on ratemeter and replace high amplifier board. 4.14 Re-energize power on ratemeter. 4.15 Allow equipment to STABILIZE for 15 minutes. y mm w m 'jQQ 46.0 i g i

? "'[' ~ 2302-R3 Revision 1 11/17/77 4.16 OBTAIN GRIGINAL SOURCE readings of field calibration kit found in Table 1. 4.17 Correct this original source readings for time using Table 1 and record. NOTES: Source exposure may be minimized by becoming familiar with the operation of the FCK. With the source in the open position, there is no beam shielding in the front hemisphere of the calibrator. Check the warning decal en the top of the case for radiation levels. Whenever the FCK is not in the closed position, take all readings as quickly as possible to minimize personnel exposure in the area of the FCK. Radiation given off by the FCK may cause an indication or alarm on other nearby monitoring channe's. This, as well as possible personnel exposure, should be kept in mind when performing this test procedure. 4.18 With readout module energized and detector energized, take background reading from ratemeter and record. NOTE: When taking background measurements, insure the FCK is greater than 25 feet from the detecto. 4.19 Place detector into-FCK unit with unit-in the closed position, record meter reading. 4.20 Compare reading taken with corrected source reading fround in Step 4.17, and insure reading is within +10% of corrected source re.. ding. If not, adjust (R41) on low amplifier board "~ to uring meter reading into specification. 206 301 47.0 2 .j s

t 2302-R3 4 Revision 1 11/17/7' 4.21 Place field calibration kit in the open position. Record meter reading. Remain behind window of FCK to limit radiation exposure. 4.22 Compare reading taken with corrected reading found in Step 4.17, and insure reading is within +10% of corrected source reading. i If not, adjust (R41) on high amplifier board to bring meter e reading into specification. 4.23 Repeat Steps 4.19 through 4.22 until both readings fall in specification. <2 0 6 3 0 '.' 48.0 -}}

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