S.E. International Inspector EXP Specifications download pdf (Page 26)

Detector

Internal Halogen-quenched, uncompensated GM tube with thin mica window, 1.4-2.0 mg/cm2 areal density.

Eecve diameter of window is 45 mm (1.77 in.). Radiaon symbol on front label and end panel marks the

center of the detector.

Averaging Periods

Display updates every 3 seconds. At low background levels, the update is the average for the past 30-second

me period. The med period for the average decreases as the radiaon level increases.

Operating Range

mR/hr - .001 (1µR) to 100 CPM - 0 to 350,000

µSv/hr - .01 to 1000 CPS - 0 to 5000

Timed Count (Total/Timer) - 1 to 9,999,000 counts

Accuracy (Cs

137

)

mR/hr ±10% typical (NIST), ±15% max - 0 to 100

µSv/hr ±10% typical (NIST), ±15% max - 01 - 1000

CPM ±10% typical (NIST), ±15% max - 0 to 350,000

Energy Sensitivity

Detects Alpha down to 2 MeV. Detects Beta down to .16 MeV; typical detecon eciency at 1 MeV is

approx. 25%. Detects Gamma down to 10 KeV through the end window. 3340 CPM/mR/hr (Cs

137)

. Smallest

detectable level for I

125

is .02 µCi at contact.

Display

4 digit liquid crystal display with indicators. Display updates every 3 seconds.

Alert Set Range

mR/hr .001 - 50 and CPM 1 - 160,000. 70db @ 1m. Pulsang beeper sounds the alert. Adjustable alert levels

are used for mR/hr / CPM, and µSv/hr / CPS. Alarm will sound when in Timer Mode when set alarm threshold

is reached.

Count Light

Red LED ashes with each radiaon event.

Audio Indicator

Internally mounted beeper (can be switched o for silent operaon)

Outputs

Dual miniature jack drives CMOS or TTL devices and counts to computer or datalogger.

USB for use with Observer USB Soware for PCs

Anti-Saturation

Meter will hold at OVER RANGE in elds as high as 100 mes the maximum reading.

Power Requirements

One 9-volt alkaline baery. Baery life is approx. 2000 hours at normal background.

Temperature Range

-10ºC to 50ºC (14ºF to 122ºF)

Weight

275 grams (9.7 oz.) without baery.

Size

150 x 80 x 30 mm (5.9 x 3.1 x 1.2 in.).

Includes

Carrying Case, Cercaon of Conformance, Observer USB Soware

Limited Warranty

1 year limited warranty.

Appendix A: Technical Specicaons

ENERGY RESPONSE

RELATIVE

PHOTON ENERGY (keV)

COUNTRATE

End Window

Side Wall

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S.E. International Inspector EXP Specifications Page 26

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