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MicroR Ratemeter - Model 193-6
CE Seal


Specifications

APPLICATION: low level (microR) gamma survey
DETECTOR: 15.2 cm diameter x 2.5 cm thick (6 x 1 in.) EJ212 plastic scintillator
SENSITIVITY: typically 150 cpm/mSv/h (1500 cpm/µR/hr) (137Cs gamma)
ENERGY RESPONSE: energy dependent
LINEARITY: reading  ±10% of true value
METER DIAL: 0-1 µR/hr, BAT TEST (others available)
ALARM: dual action alarm
  1. FIXED: alarm point that 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. DEVIATION: a quick alarm that is based on background radiation levels. When the instrument is turned on, it takes an eight-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.
CONTROLS:
  1. Rotary Selector: switches between instrument off, battery check, ranges: x1, x10, x100, x1000
  2. Response Switch: toggles between FAST (4 seconds) or SLOW (22 seconds) from 10% to 90% of final reading
  3. Reset Pushbutton: to zero meter, and also re-accumulate background data and recalculate the alarm point
  4. Audio Switch: for audio on/off, built-in unimorph speaker, greater than 60 dB at 0.6 meters (2 ft)
  5. Calibration Controls: accessible from front of instrument (protective cover provided)
POWER: two "D" cell batteries
BATTERY LIFE: typically 600 hours with alkaline batteries (battery condition can be checked on meter)
CONSTRUCTION: cast and drawn aluminum with beige polyurethane enamel paint
WEIGHT: 3.9 kg (8.5 lb), including batteries
OVERALL LENGTH: 3.3 m (51 in.)
MicroR Ratemeter