RAM GAM-1

Display:

Large, four digit, continuous ranging, LCD readout for display of accumulated dose, dose rate, alarm threshold value, overflow, low battery, and detector failure

LED:

Flashing count rate indication

Audio:

Piezo electric element synchronised with count LED

Units:

mR and mR/hr or µSv and µSv/hr

Controls:

Three key keypad with positive feedback for ON/OFF, RESET and SPEAKER. Key combinations for selecting accumulated dose and threshold displays

Power Source:

Standard 9V alkaline battery - provides approximately 50 hours continuous use with speaker off. Automatic battery check under full load.

Detector:

Energy compensated GM tube - ZP1201 or equivalent

Measuring Range:

0.05mR/hr to 999mR/hr (0.5µSv/hr to 9999µSv/hr)

Display Range:

0.05mR/hr to 999mR/hr (0.5µSv/hr to 9999µSv/hr)

Sensitivity:

17 cps/mR/hr (¹³⁷Cs)

Accuracy:

±15% of reading within measuring range

Energy Range:

50keV to 2.0 MeV

Energy Dependence:

±20% related to ¹³⁷Cs

Angular Dependence:

Less than ±20% for ±45^o of preferred direction

Temperature Range:

Operation: -10^oC to +50^oC (15^oF to 122^oF)
Storage: -20^oC to +60^oC (-5^oF to 140^oF)

Humidity Range:

40% to 95% RH (non condensing)

Case:

High impact ABS

Dimensions:

13cm x 7.2cm x 3.4cm (5.12" x 2.83" x 1.34")

Weight:

0.280 Kg (0.62 lbs)