High Range Gamma Area Monitor UDMG-206

For supplies to the Russian Federation

Certificates:

Purpose:
gamma dose rate measurement in critical conditions (radiation monitoring during accident)

Main features and functions:

  • measurement of gamma dose rate, and data display (depending on version) or data output via RS485
  • detection unit is operable under all possible accident of BBP reactor.
  • automatic self-testing, alarm signal generation, alarm signal display and alarm output via RS485
  • built-in control source for workability diagnostics
  • three alarm threshold levels (warning level and two emergency levels)
  • alarm of measured value "minor change"
  • "dry-contact" signal of threshold value is exceeded
  • standard (0...20mA / 4...20mA) analog output for measured data transfer to external systems
  • standard (0...20mA / 4...20mA) analog input for external device connection and its measured data consideration in algorithms
  • detecting unit can be installed at a distance up to 70 m from processing unit
  • unified and replaceable components for all "RADSYS" system devices

Performance specification

Measurement range:

10-3 ÷ 105 Gy/h

Energy window

0,06 ÷ 3,00 MeV

Operating temperature range

IPU: 0 to +55 °С
DU: 0 to +60 °С; stable in accident situation within 2 days under environment air temperature +180 °С and within 30 minutes under temperature +205 °С 

Operating pressure range

84,0 to 106,7 kPa
DU: up to 600 kPa in accident situation

Operating humidity range

up to 95 % at +35 °С
DU: up to 100 % at temperature +40 °С and lower temperature, without condensing

Relative error

40 %

Seismic stability

up to 8 points

Protection index

IP65

Dimensions and weight

DU: Ø50,5x440 mm; not more than 4,5 kg
LPDU: 390х200х190 mm; not more than 8,0 kg
LPU: 339х196х106 mm; not more than 4,5 kg

Measurement chamber volume                  

0,1 l

Cable length between DU and IPU

not more than 85 m

Corresponds to 3N class requirements according to NP-001-97 (OPB-88/97)

Power supply

220 V

Power output

35 VA

Options

 

  • Power supply 24 V
  • Display and buzzer
  • Two two-step or one-step relays
  • Mineral cable
  • Cable penetration (or penetration module)
  • Junction box