Digital Area Monitor

Description

The Digital Area Monitor with built-in GM Gamma Detector provides continuous gamma radiation monitoring of rooms where radionuclides are received, stored, or dispensed, and in waste management areas where there is the possibility of radioactive contamination. The monitor is wall-mountable.

Specifications

Indicated Use: Area monitoring
Compatible Detectors: GM, proportional, scintillation, neutron
Linearity: Reading within 10% of true value
Response: Typically 3 s from 10% to 90% of final reading
Display: Four-digit LED display with 2 cm (0.8 in.) digits
Display Range: 000.0 to 9999
Display Units: Can be made to display in μR/hr, mR/hr, R/hr, μSv/h, mSv/h, Sv/h, μrem/hr, mrem/hr, rem/hr, cpm, cps, and others
Status Indicator: Green light indicates instrument is functioning properly
Alarms: Low Alarm: Yellow light, 1 beep/second audible, selectable range: 0 to 9999; High
Alarm: Red light, 4 beeps/second audible, selectable range: 0 to 9999; Detector Fail: Red light, constant audible tone > 68 dB at 61 cm (2 ft); Low Bat: Yellow light, indicates less than two hours of battery life remaining
High Voltage: Adjustable from 450 to 2500 V
Threshold: Adjustable from 2 to 100 mV
Dead Time: Adjustable to compensate for dead time of detector and electronics (can be read on display)
Overload: Senses detector saturation (indicated by display reading “-OL-”)
Overrange: Indicates radiation field being measured has exceeded counting range of instrument (indicated by display reading “– – – –”)
Audio: Intensity can vary from approximately 68 to 100 dB through operation of the external rotary baffle and the internal voltage connection. Frequency is approximately 3 kHz
Data Output: Nine-pin connector providing five-decade logarithmic output, RS-232 output, signal ground connection, FAIL and ALARM signals (current sink), and direct connection to battery and ground
Calibration Controls: Accessible from front of instrument (protective cover provided)
Power: 9 Vdc wall-mount adapter, handles any mains voltage worldwide, supplied with four sets of prongs for almost any style wall receptacle
Battery Life: 48 hours in non-alarm condition (typical); 12 hours in alarm condition (typical)
Battery Charger: Battery is continuously trickle-charged when instrument is connected to line power and turned on
Construction: Wall-mount aluminum housing with ivory powder coat
Size (H x W x L): 18.7 x 24.6 x 6.4 cm (7.4 x 9.7 x 2.5 in.)
Weight: 2.1 kg (4.7 lb)