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PART NUMBER:48-2959

INDICATED USE: General purpose survey with alarming capabilities
CONNECTOR: Series C (others available)
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 193 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 degrees F(-20 degrees C) to 122 degrees F(50 degrees C) 
May be certified for operation from -40 degrees F(-40 degrees C) to 150 degrees F(65 degrees C)
SIZE: 6.5"(16.5 cm)H X 3.5"(8.9 cm)W X 8.5"(21.6 cm)L
WEIGHT: 3.5 lbs(1.6 kg) including batteries