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Ludlum Model 2401-EW Survey Meter
Radiation Service Technician
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Specifications
| Detector |
– 0.566" diameter end window G-M |
| Sensitivity |
– Typically 1050 cpm/mR/hr (137Cs gamma) |
| Energy Response |
– Energy dependent |
| Meter Dial |
– 0 - 2 mR/hr
– 0 - 2.1k cpm
– BAT OK |
| Multipliers |
– X1, X10, X100 |
| Linearity |
– Reading within ±10% of true value |
| Audio |
– built in unimorph speaker (select quiet position on main switch to silence the audio) |
| Calibration Controls |
– Accessible from the front of instrument |
| Response |
– Typically 5 seconds from 10% to 90% of final reading |
| Power |
– 1 ea. 9 volt |
| Battery Life |
– Typically 250 hours with alkaline batteries (battery condition can be checked on meter) |
| Meter |
– 2.5" (6.4 cm) arc<>br>
– 1 mA analog type |
| Construction |
– Aluminium housing with beige polyurethane enamel paint, and a recessed subsurface printed membrane front panel |
| Temperature Range |
-20°C(-4°F) to 50°C(122°F)
May be certified for operation from -40°C(-40°F) to 65°C(150°F) |
| Size |
– 1.8"(4.6 cm)H X 3.3"(8.4 cm)W X 5.3"(13.5 cm)L |
| Weight |
– 0.9 lbs (0.4 Kg) including batteries |
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Analogue & Digital Measurements: eQuipment Safety Systems
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