LUDLUM 3007B Neutron Dose Survey Meter (2 atm 3He; 4.5 cpm per µSv/h)

Measurement Range: 0 - 100 mSv/h (0 - 10,000 mrem/hr)

Detector: 2 atm 3He tube

Sensitivity (bare 241AmBe): 4.5 cpm per µSv/h (45 cpm per mrem/hr)

Energy Response: Provides an approximate inverse RPG curve for neutrons from thermal to 12 MeV

Gamma Rejection: < 10 cpm through 0.1 Sv/h (10 R/hr) [137Cs gamma]

Threshold: -2 mV

High Voltage: Adjustable from 300 to 2400 Vdc

Operating Voltage: Approximately 1200 Vdc

Response Time: User-selectable from 1 to 60 seconds, auto SLOW, auto FAST, fixed SLOW (22 s), or fixed FAST (4 s)

Alarms: Three adjustable alarm setpoints for each unit in all four modes of operation

Overrange: If the reading exceeds the predefined detector range, the instrument will flash a maximum reading, show OVERRANGE on the display, and trigger an audio warning

Audio: Approximately 4.5 kHz; click audio greater than 65 dB at 0.6 m (2 ft), alarm audio greater than 72 dB

ower: Four alkaline "AA" batteries

Working Environment: Splash-proof shields for outdoor use

Construction: High-impact plastic with water-resistant rubber seals and separate battery compartment

Temperature Range: -20 to 50 °C (-5 to 122 °F), may be certified for operation from -40 to 65 °C (-40 to 150 °F)

Environmental Rating: NEMA rating of 3X, IP rating of 53

Size (H x W x L): 37.1 x 19.5 x 24.4 cm (14.6 x 7.7 x 9.6 in.)

Weight: 5.5 kg (12.2 lb), with batteries

Datasheet

Manual