| Application |
Alpha, Beta, and Gamma surveying |
| Compatible Detectors |
GM, Scintillation |
| Detection Range |
Dependent on detector |
| Linearity |
Reading within 10% of true value with detector connected |
| Meter Dial |
0 – 2 mR/hr, or 0 – 500 kcpm, BAT TEST
(Meter Faces tab lists other available meter faces) |
| Meter |
6.4 cm (2.5 in.) arc, 1 mA analog type |
|
Rotary Selector Switch |
Switches between: Instrument off; Battery check; Ranges: x0.1, x1, x10, x100 |
|
Response Switch |
Toggles between FAST (4 s) or SLOW (22 s) from 10% to 90% of final reading |
| Controls |
Reset Pushbutton |
Zeroes meter |
|
Audio Switch |
Audio on/off, built-in unimorph speaker, greater than 60 dB at 0.6 meters (2 ft.) |
|
Calibration Controls |
Accessible from front of instrument (protective cover provided) |
| High Voltage |
Adjustable from 400 to 1500 Vdc |
| Threshold |
Fixed at -35 mV ± 10 mV |
| Temperature Range |
-20 to 50 °C (-4 to 122 °F) May be certified for operation from -40 to 65 °C (-40 to 150 °F) |
| Power |
Two each “D” cell batteries housed in externally accessible sealed compartment |
| Battery Life |
Typically greater than 2000 hours with alkaline batteries (battery condition can be checked on meter) |
| Construction |
Cast and drawn aluminum with beige powder coat |
| Connector |
Series “C” (others available) |
| Size (H x W x L) |
16.5 x 8.9 x 21.6 cm (6.5 x 3.5 x 8.5 in.), including handle |
| Weight |
1.6 kg (3.5 lb), including batteries |
