LUDLUM M-3 SURVEY METER W/44-2
Ludlum

LUDLUM M-3 SURVEY METER W/44-2

Pine Item #61218

The Model 3 is a portable radiation survey instrument with four linear ranges used in combination with exposure rate, or cpm meter dials.

The instrument features a regulated high-voltage power supply, unimorph speaker with audio ON/OFF capability, fast-slow meter response, meter reset button and six-position switch for selecting battery check or scale multiples of Xo.1,X1,X10 and X100.

Each range multiplier has its own calibration potentiometer.

Features:

Gamma Radiation survey.

NIST-traceable certificate of calibration.

Quantity must be 1 or more
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Specifications

Technical Specifications

Scintillator1\" diameter x 1\" thick sodium iodide
Range60 keV to 1.25 MeV
SensitivityTypically 175 cpm/ µR/ hr (137 Cs gamma)
Operating Voltage500 to 1200 volts
Dimensions2\" diameter x 7.3\" long
Weight1 lb.
MultipliersXo.1 X1 X10 X100
AudioBuilt-in unimorph speaker with ON/OFF switch (greater tha 60dB at 2 feet)
ThresholdFixed at 30 mV +/-10 mV
ResponseFast (4 seconds) or Slow (22 seconds) from 10 to 8=90% of final reading.

Dimension

USMetric
Dimensions6.5 x 8.5\" x 3.5\"\"16.5 x 21.6 x 8.9 cm

Weight

USMetric
Weight3 lbs 1.36 kg