MKS-U

Description
A full-range radiation survey device in the field environment.
MKS-U measures gamma radiation dose rate from the background to emergency levels. Availability of the remote detector enables measuring emergency levels of gamma radiation dose rate at a distance of 30 m. The device operates under the conditions of atmospheric precipitations, dusty conditions and when the remote detector is submerged in the water at 0.5 m depth. Storage battery of the device is charged with the help of the built-in charger from integral solar battery, from automobile battery or from industrial network.

Features
  • Automatic setting of measurement intervals and ranges.
  • Audio signaling of each registered gamma-quantum or beta-particle.
  • Display and control keys backlight if operating in the dark. Storage battery (five AA nickel-cadmium batteries) charging by the built-in charger from:
– integral heliobattery;
– 12 V automobile battery;
– 220 V/50 Hz industrial network by voltage converter.
  • Multilevel indication of power supply discharge.
  • Ability to operate under atmospheric precipitation, dusty conditions and at immersion of the remote detector in water at 0.5 m depth.
  • Measurement of gamma radiation DER action levels by placing the remote detector at up to 30 m distance.
  • Analog indicator of radiation intensity.
  • Up to 4096 measurement results recording in the nonvolatile memory with further transfer through infrared port to the computer.
  • Viewing the recorded measurement results on the display.
  • Ability to operate with the personal protective equipment (rubber gloves).
  • Wide operating temperature range (-40…+50 °C).
  • Display resistant to the temperature of up to +95 °C.
The device includes:
  • Gas-discharge Geiger-Muller counters without return run of counting response
  • Silicon beta radiation detector
  • Emergency scintillation gamma radiation detector (CsI-scintillator-photodiode)
Specifications
Measurement of gamma and X-ray radiation parameters:
Measurement range of ambient dose equivalent rate with the combined detecting unit0.1 µSv/h … 10 Sv/h
Measurement range of ambient dose equivalent rate with the remote detectorSv/h0.01…100
Measurement range of gamma and X-ray radiation DE with the detector built in the control panel and main relative errormSv
%
0.001…9 999
±15

Main relative permissible error limit of DER measurement when calibrated to 137Cs:
– for the combined detecting unit±(15+2/H*(10))%, where H*(10) is a numeric value of measured DER equivalent to µSv/h
– for the remote detector±(15+200/H*(10))%, where H*(10) is a numeric value of measured DER equivalent to mSv/h
Energy range of measurementMeV0.05…3.0
Measurement range of DE accumulation time and accuracy of measurement1min…100h
±1min per 100h

Measurement of beta radiation parameters:
Measurement range of surface beta-particles flux density1/(cm2×min)10…200 000
Energy range of measurementMeV0.3…3.0
Main relative permissible error limit of beta-particles flux density measurement when calibrated to 90Sr+90Y±(20+200/φß)%, where φß is a numeric value of measured flux density equivalent to part./(cm2×min)
Measurement time intervalsseconds2…50
Storage battery lifehours100
Operating temperature range(for digital display)°С-40…+50
(-40…+95)
Weight of the control panel with the detecting unitkg2.4
Dimensions of the control panelmm160x125x80
Weight of the dosimeter’s kit in packing casekg8
Dimensions of the dosimeter’s kit in packing casemm554x420x123
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