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MAR-781 / MAR-782

This instrument is the area monitor that measures the gamma dose rate in the working environment. Equipped with large LED display and loud buzzer alarm function, it is easy to see and hear the measurements from people nearby. Moreover, it is small and light weight enough to easily carry around.

Features
  • For facilities using gamma ray
  • Two models, high-sensitivity and wide-range, available to suit specific target dose rate
  • Detector cable extendable up to 40 meters
  • Large display
  • Equipped with alarm and external signal output
  • Belt and wall-mounting fixtures provided
MAR-781 / MAR-782
Specifications

¡ãMAR-781¡ä
  • Radiation detected
    Gamma ray, X-ray
  • Detector
    Silicon semiconductor detector
  • Measurement energy range
    Approx. 50 keV to 6 MeV
  • Measurement range
    0.1 to 999.9¦ÌSv/h
  • Accuracy
    Within ¡Þ10% (1 to 999.9 ¦ÌSv/h), ¡Þ1 digit (0.1 to 0.9¦ÌSv/h)
  • Counting system ¡¡
    Digital rate meter method, Moving average method
  • Display system
    4-digit 7-segment red LED display
  • Alarm display output¡¡
    Red LED lights up and buzzer turns on.
    Numerical indication blinks.
    No-voltage contact output
  • Data output
    Conforms to RS-422, RS-232C, or current loop communication
    (RS-422 output set at the factory. For RS-232C or current loop communication, internal wiring changed on request.)
  • Analog output
    0 to 1VDC output
  • Detector extension
    Up to 40m using extension cable
  • Environmental requirements in operation
    Temperature: 0 to +40 degrees C, Relative humidity: up to 90% (non-condensing)
  • Power
    100VAC or 6VDC
  • Dimensions
    Approx. (W) 300 ¡ß (D)55 ¡ß (H) 250 mm
  • Weight
    Approx. 2.3 kg

*Battery-operated model (MAR-783) is available. Please contact us for further details.
*If you wish to use the 40m detector extension cable with MAR-781 and MAR-783, please contact us.

¡ãMAR-782¡ä
  • Radiation detected
    Gamma ray, X-ray
  • Detector
    Silicon semiconductor detector
  • Measurement energy range
    Approx. 50 keV to 6 MeV
  • Measurement range
    0.001 to 99.99 mSv/h
  • Accuracy
    Within ¡Þ10% (0.01 to 99.99 mSv/h), ¡Þ1 digit (0.001 to 0.009 mSv/h)
  • Counting system
    Digital rate meter method, Moving average method
  • Display system
    4-digit 7-segment red LED display
  • Alarm display output
    Red LED lights up and buzzer turns on.
    Numerical indication blinks.
    No-voltage contact output
  • Data output
    Conforms to RS-422, RS-232C, or current loop communication
    (RS-422 output set at the factory. For RS-232C or current loop communication, internal wiring changed on request.)
  • Analog output
    0 to 1VDC output
  • Detector extension
    Up to 40m using extension cable
  • Environmental requirements in operation
    Temperature: 0 to +40 degrees C, Relative humidity: up to 90% (non-condensing)
  • Power ¡¡
    100VAC or 6VDC
  • Dimensions
    Approx. (W) 300 ¡ß (D)55 ¡ß (H) 250 mm
  • Weight
    Approx. 2.3 kg

*Battery-operated model (MAR-784) is available. Please contact us for further details.


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