LUDLUM 3A General Purpose Survey Meter With Alarm (GM, Scintillation)

Application: Alpha, Beta, Gamma survey

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 cpm, BAT TEST

(Meter Faces tab lists other available meter faces)

Meter: 6.4 cm (2.5 in.) arc, 1 mA analog type

Alarm: Indicated by red lamp on front panel and constant audio tone. The alarm circuit is triggered by meter deflection.

High Voltage: Adjustable from 400 to 1500 Vdc

Threshold: Fixed at -30 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 × 8.9 × 21.6 cm (6.5 × 3.5 × 8.5 in.), including handle

Weight: 1.6 kg (3.5 lb), including batteries

Datasheet

Manual