MODEL MA0393 X-RAY EXPOSURE METER

X-ray Exposure Meter Model MA0393
The Gammex MA0393 X-ray Exposure Meter is a rugged meter for making routine tests of x-ray exposure and rate. This compact instrument consists of an electrometer with display electronics and a built-in ion chamber. Just place the meter on the optional remote detector on the x-ray table, collimate the beam to the detector and make an exposure. The 3 1/2 digit, 1/2 inch liquid display is easy to read and presents up to 2 R and 20 R/min
SPECIFICATIONS Range . . . . . . . . . . 0.001 to 2 R, 0.01 to 20 R/min Measurement Area . . 20.5 cm 2 (5.1 cm diameter) effective Center of Ion Chamber . . . . . . 1.03 cm below top of chamber Standard Calibration . At 75 kVp w/4 mm Al filtration at 22¡ã C and one atmosphere Reproducibility . . . . Within 2% short term over 100 mR to 2 R Energy Response . . . ¡À5% from 15 to 65 keV (30 to 150 kVp filtered) Electrometer Drift . . 0.5 to 1 mR/min typical; 6 mR/min max Maximum Exposure Rate . . . . . Minimum 90% collection at 20 R/sec Reset . . . . . . . . . . . Automatic or Manual Operating Environment . . . . . . 10 to 40¡ã C, max 90% relative humidity Display . . . . . . . . . . 3 1/2 digit LCD Controls . . . . . . . . . Auto/Manual Reset, Zero Reset, Dose/Dose Rate, Integral/Remote Ion Chamber ON/OFF Switch Power . . . . . . . . . . 9V Alkaline Battery (included) Size . . . . . . . . . . . . 7x15x16 cm (2x6x6.3 in) Weight . . . . . . . . . . 0.7 kg (1.5 lbs)