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D-UG 120 control unit

D-UG 120
Control unit

Control unit for combination with optical flame sensors for monitoring gas, oil and coal flames. Particularly for applications with single burner view. 

Functionality: Optical flame monitoring

  • Simple adjustment
  • Compact and space-saving design
  • Connection of all DURAG GROUP optical flame sensors possible
  • Time-saving commissioning
  • Low space requirement in control cabinet
  • Simple combustion plants with single burners or optically separated burners
  • Combustion processes in continuous operation
  • Technical data
Operating modeIntermittent operation and continuous operation
Functional SafetySelf-monitoring and fail-safe, supports safety chains up to SIL 3
Switching thresholdFlame intensity (10 levels)
Local displayLEDs
Number of flame sensors that can be connected1
Flame failure detection time (FFDT)1 s
Flame ON/OFF contact1x NO contact
Ready for operation contact1x NO contact
Switching capacity of relay contactsMax. 230 VAC, 2 A
Analogue output0/4 … 20 mA, load max. 200 Ohm
Electrical data24 VDC, 5 W, PELV
Ambient conditions-20 … +60 °C
Degree of protectionIP20
Dimensions100 x 75 x 118 mm
WeightApprox. 0.5 kg
InstallationDIN rail TS35
  • Optional
Supply unit 24 V - Wide range power supply unit for supply of several D‑UG 120
D-NG 24/05
D-ZS 087-20 - Digital display for optimal adjustment of the flame sensors by measuring the pulse rate and its extreme values