ML19098A981

Appendix K, Qaqc Records, 2016, Cal Certs - Unc 2360 43-37

ML19098A981
Person / Time
Site:	07000371
Issue date:	03/01/2018
From:	Cabrera Services
To:	NRC Region 1
Shared Package
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Download: ML19098A981 (1)

Text

ERG Certificate of Calibration Calibration and Voltage Plateau Meter:

Manufacturer:

Ludlum Model Number:

2360 Detector:

Manufacturer:

Ludlum Model Nwnber:

43-37 Environmental Restoration Group, Inc.

8809 Washington St NE, Suite 150 Albuquerque. NM 87113 (505) 298-4224 www.ERGoffice.com Serial Number:

Serial Number:

145481 PRl 78371

~ Mechanical Check 0 F/S Response Check

~ Geotropism

~ THR/WIN Operation

~ Reset Check HV Check(+/- 2.5%): ~ 500 V

~ 1000 V ~ 1500 V Cable Length: D 39-inch LJ 72-inch

~ Other:

60"

~ Audio Check IY'J Meter Zeroed

~ Battery Check (Min 4.4 VDC)

Alpha Threshold; 100 mV Source Distance: ~Contact D 6 inches C Other:

Beta Threshold:

4 Source Geometry: D Side

~ Below C: Other:

Beta Window:

40mV Instrument found within tolerance: ~ Yes D No Barometric Pressure: 24.45 Temperature:

70 Relative Humidity 20 inches Hg op Integrated I-Min. Count Range/Multiplier Reference Setting "As Found Reading" Meter Reading a

~

x 1000 400 Kcpm 400 400 398751 398764 x 1000 100 Kcpm 100 100 x 100 40 Kcpm 400 400 39878 39880 x 100 IO Kcpm 100 100 x 10 4 Kcpm 400 400 3988 3989 x 10 1 Kcpm 100 100 x I 400 cpm 400 400 399 399 x I 100 cpm 100 100 High Alpha Source Beta Source

Background

Voltage a

s a

s a

s Vol@,ge_I'lateau 1600 1589 1290 31 2627 27 480 5000 1625 2233 1551 34 3709 31 761 4000 1650 2493 1971 29 5656 31 1220 3000 1675 2499 2278 60 5403 27 1587 2000 1000 0

1600 1625 1650 1675

--..-aackground Alpha __._. Background Beta

-Net Alpha

---

Net Beta Comments; HV Plateau Scaler Count Time= I min. Recommended HV = 1650@ 5000' Reference Instruments and/or Sources:

Ludlum pulser serial number: D 97743 ~ 201932

~ Alpha Source:

~ Beta Source:

Calibrated By:

Reviewed By:

(s/n 4098-03) 12,800 dpm on 1 /4/12 sn: 4099-03) 17, 700 dpm on 114/ 12 Fluke multimeter serial number ~87490128 D Gamma Source Cs-137@ 5.2 uCi (114112) sn: 4097-03 D Other Source:

Calibration Date:

5" * (i-t <-

Calibration Due: S"-1)-1 (

Date:

~

/ 1 r-/i "1 ERG Form ITC. 101.C This calibra1io11conforms10 rhe reqwremenrs and acceprab/e ca/1brart011 cond111011s uf AYS/ X323A - 1997