Model 2241-2 Survey Meter Specifications

Indicated Use General purpose survey, gross counting
Compatible Detectors G-M, proportional, scintillation
DET1/DET2 A locking toggle switch to allow for quick change between two detector setups (2241-2) or four detector setups (2241-3)
Connector Series "C" (others available on request)
Audio Built in unimorph speaker with ON/OFF switch (greater than 60 dB at 2 feet)
Alert/Alarm Indicated by enunciator on display and audible tone
Display 4 digit LCD display with 0.5"(1.3cm) high digits, separate enunciators for display units, alert, alarm, low battery, detector overload, counting overflow, and scaler counting
Backlight Push-button to activate
Ratemeter Can display in R/hr, Sv/hr, cpm, or cps when control switch is in RATEMETER position
Display Range Auto ranging from 0.0 microR/hr - 9999 R/hr; 0.000 microSv/hr - 9999 Sv/hr; 0 cpm - 999k cpm; or 0 cps - 100k cps
Linearity Reading within plus or minus 10% of true value with detector connected

Scaler Activated by push-button in handle (count time adjustable from 1 - 9999 seconds in 1 second interval)Calibration Controls Accessible from front of instrument (protective cover provided)
High Voltage Two independent controls, each adjustable from 200 - 2500 volts
Discriminator Two independent controls, each adjustable from 2 - 100 mV
Overload Indicated by OVERLOAD on display (adjustable depending on detector selected)
Reset Push-button to zero display, acknowledge and/or reset alarm
Power 2 each "D" cell batteries (housed in sealed compartment that is externally accessible)
Battery Life Typically 200 hours with alkaline batteries (low battery indicated on display)
Construction Cast and drawn aluminum with beige polyurethane enamel paint
Temperature Range -4° F(-20° C) to 122° F(50° C)
May be certified for operation from -40° F(-40° C) to 150° F(65° C)
Size 6.5"(16.5cm)H X 3.5"(8.9cm)W X 8.5"(21.6cm)L
Weight 3.5 lbs (1.6kg) including batteries

MODEL 2241 SERIES DIGITAL SURVEY METERS