The Model 3 with Model 44-2 is a gamma survey meter using the Model 44-2 shielded plastic scintillation detector
Model 3 - Part Number: 48-1605
Model 44-2 - Part Number: 47-1532
DETECTOR: Model 44-2 Gamma Scintillator
SCINTILLATOR: 1" (2.5cm) diameter X 1" (2.5cm) thick (Nal)Tl crystal
SENSITIVITY: Typically 175 cpm/µR/hr(Cs-137 gamma)
ENERGY RESPONSE: Energy dependent
METER DIAL: 0 - 5k cpm; 0 - 2 mR/hr, BAT TEST (others available)
MULTIPLIERS: X0.1, X1, X10,X100
LINEARITY: Reading within ± 10% of true value
AUDIO: Built-in unimorph speaker with ON/OFF switch (greater than 60 dB at 2 feet)
CALIBRATION CONTROLS: Accessible from front of instrument (protective cover provided)
RESPONSE: Toggle switch for FAST (4 seconds) or SLOW (22 seconds) from 10% to 90% of final reading
RESET: Push button to zero the meter
POWER: 2 each " D " cell batteries (housed in sealed compartment that is externally accessible)
BATTERY LIFE: Typically 2000 hours with alkaline batteries (battery condition can be checked on meter)
METER: 2.5" (6.4cm) arc, 1 mA analog type
CONSTRUCTION: Cast and drawn aluminum with beige polyurethane enamel paint with sub-surface printed front panel
TEMPERATURE RANGE: -4° F(-20° C) to 122° F(50° C)
SIZE: Model 3 - 6.5" (16.5cm)H X 3.5" (8.9cm)W X 8.5" (21.6cm)L
Model 44-2 - 2" (5.1cm) diameter X 7.3" (18.5cm)L
WEIGHT: Model 3 - 3.5 lbs (1.6 kg) including batteries Model 44-2 - 1 lb (0.5 kg)
Return to ludlums.comCopyright © 2000 Ludlum Measurements, Inc.
For comments or suggestions please contact webmaster at: ludlum@ludlums.com
Page last updated: May 2005