LUDLUM 2242 Gamma Exposure Scaler-Ratemeter (0.1 mR/hr ~ 999.9 R/hr)

Indicated Use: Hazard assessment, Emergency response

Detector: 2  internal energy compensated GM tubes

Sensitivity: 1000 cpm per mR/hr & 17 cpm per mR/hr

Energy Response: Within 15% of true value from 60 keV to 3 MeV

Meter: 4-digit LCD display with 1.3 cm (0.5 in.) high digits, separate annunciators for display units, alert, alarm, low battery, detector overload

Display Range: 0.1 mR/hr to 999.9 R/hr

Backlight: Pushbutton to activate

Range Switch: LOW (mR/hr), HIGH (R/hr)

Reset: Pushbutton to zero meter

Calibration Controls: Some are accessible from the front of the instrument, others are internally located

Overload Protection: Included, indicated by message on display

Alert/Alarm: Indicated by annunciators on display and audible tone

RS-232 Port: Outputs data every 2 seconds, can also be used to calibrate via optional software

Audio: Built-in unimorph type speaker with ON/OFF switch

Temperature Range: -30 to 50 °C (-22 to 122 °F)

Working Environment: Splashproof for outdoor use

Power: 2 "D" cell batteries (housed in sealed compartment that is externally accessible)

Battery Life: Typically 200 hours with alkaline batteries, low battery indicated on display

Size (H x W x L): 16.5 x 8.9 x 21.6 cm (6.5 x 3.5 x 8.5 in.)

Weight: 1.6 kg (3.5 lb), including batteries

Datasheet

Manual