TERRA

TERRA

Dosimeter-radiometer МКS-05

  • Сonforms to the CE standards
  • Built-in gamma, beta-sensitive Geiger-Muller counter
  • Big display with luminescent backlight
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Description

TERRA is a professional device for official measurements, which measures the level of gamma background, beta
contamination, accumulated dose, and its accumulation time.
TERRA is exported to over 70 countries. The device is in operation in many Governmental Institutions and Agencies worldwide.

Purpose of Use

Purpose of Use

  • Measurement of gamma and X-ray radiation ambient dose equivalent rate (DER)

  • Measurement of gamma and X-ray radiation ambient dose equivalent (DE)

  • Measurement of surface beta-particles flux density

  • Measurement of ambient dose equivalent accumulation time

  • Real time measurement (clock), alarm clock

Features

  • Big display with luminescent backlight

  • Simultaneous indication of units of measurement, measurement errors, threshold level, and real-time on the display

  • Analog ten-segment indicator of registered radiation intensity

  • Ability to perform measurements with a preset error

  • Four-level indication of battery discharge

  • Built-in memory which allows storing up to 1200 measurements

  • Five independent measuring channels with the alternate indication of data on the single liquid crystal display

  • Built-in gamma, beta-sensitive Geiger-Muller counter

  • Prompt evaluation of gamma background within 10 seconds

  • Automatic subtraction of gamma background at measurement of beta contamination

  • Measurement results averaging, manually and automatically interrupted

  • Automatic setting of measurement intervals and ranges

  • Audio, vibration, and vibration-audio alarm of each detected gamma-quantum or beta-particle that can be switched off

  • Two-tone audio, vibration, and vibration-audio alarm of exceeded programmed threshold levels

  • Two AAA batteries

  • Shock-resistant body

  • Small weight and dimensions

Specifications

Measurement ranges and main relative permissible error limits
Gamma and X-ray radiation ambient dose equivalent rate (137Cs) µSv/h 0.1 … 9 999
±(15+2/H*(10)) %, where H*(10)
is a numeric value of measured
DER equivalent to μSv/h
Gamma and X-ray radiation ambient dose equivalent (137Cs) mSv 0.001…9 999
±15%
Beta-particle flux density (90Sr+90Y) 1/(сm²·min) 10…100 000
±(20+200/φβ) %, where φβ is
a numeric value of measured
beta-particles flux density
equivalent to 1/(cm²×min)
Ambient dose equivalent accumulation time 1 min … 9 999 h
Energy ranges of measurement and energy dependence:
Gamma and X-ray radiation MeV 0.05…3.0
±25%
Beta radiation MeV 0.5…3.0
Resolution of threshold level programming for:
– dose rate
– dose
– flux density
µSv/h
mSv
10³/cm²·min
0.01
0.001
0.01
Battery life* hours 2 000
Operating temperature range °С -20…+50
Weight kg 0.2
Dimensions mm 55×26×120
under gamma background not more than 0.3 μSv/h, display backlight and alarm switched off

Delivery kit

  • MKS-05 TERRA dosimeter-radiometer
  • operating manual
  • leather case
  • packing box
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