Ludlum Model 192 Micro R Meter

Ludlum Model 192 MicroR Meter

Ludlum Model 192 Specifications:

INDICATED USE: Low level (microR) gamma survey
DETECTOR: 2" X 1" sodium iodide (NaI)Tl scintillator
SENSITIVITY: Typically 700 cpm/microR/hr (Cs-137 gamma )
ENERGY RESPONSE: Energy dependent
METER DIAL: 0 - 5 microR/hr, BAT TEST (others available )
MULTIPLIERS: X1, X10, X100, X1000
LINEARITY: Reading within plus or minus 10% of true value
ALARM: The Model 192 has a dual action alarm.
1. A fixed alarm point can be set at any point from 10% of full scale to full scale, and is indicated by a constant audible tone, and the lamp turning on.
2. A quick deviation alarm that is based on background radiation levels. When the instrument is turned on, it takes an 8 second measurement of background radiation levels and determines a deviation alarm setting. If the radiation level exceeds this setting, the alarm audio will beep every 1/8 second, and the lamp will flash.
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 meter, and also re-accumulate background data and recalculate the alarm deviation.
POWER: 2 each "D" cell batteries (housed in sealed compartment that is externally accessible )
BATTERY LIFE: Typically 600 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
TEMPERATURE RANGE: -4° F(-20° C) to 122° F(50° C)
May be certified for operation from -40° F(-40° C) to 150° F(65° C)
SIZE: 7.8"(19.8 cm)H X 3.5"(8.9 cm)W X 8.5"(21.6 cm)L
WEIGHT: 4.5 lbs(2.1 kg) including batteries

Waterproof Pelican Cases Available



Ludlum Model 192 Common Meter Dials



0 - 5

0 - 50 nSv/h





Replacement Parts

Check Source
Standard Carrying Case
Air and Water Tight Carrying Case

Meter Bezel
Meter Movement
Detector Assembly

Ludlum Model 192 Manual



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