D-LX 201 Compact flame monitor

D-LX 200 Compact flame monitor

D-LX 200 Self-monitoring and fail-safe compact flame monitor for the monitoring of gas, oil, and coal flames with integrated UV or IR flame sensor.

The D-LX 200 compact flame monitor analyses flame radiation using the integrated flame sensor signal. Current output 0/4…20 mA available for further analysis. Flame properties and parameters of the flame monitor can be transmitted to a PC via a RS485 and an IrDA interface.


  • Wide sensitivity range
  • For ambient temperatures from -40°C up to +85°C
  • Dual channel design throughout
  • Measurement of flame flicker frequency
  • Selective to individual burners and fuels


  • Power stations
  • Chemical industry
  • Refineries
  • Cement plants
  • Waste incinerators
  • Steam generators
  • Heating plants


Ambient temperatures
-40 ... +85°C
Bus protocol
Protection class
EX approval
Optional: II 2G Ex d IIC T6 or T5 Gb / II 3G Ex nAnC IIC T6 or T4 Gc
Supply voltage
24V DC ± 20%
Analogue outputs
0/4 ... 20mA, max. load 750Ω
Dimensions (H x W x D)
85 x 85 x 250mm
Flame relay
1 x NO contact, 24VDC, 0,5A
Status relay
1 x NO contact, 24VDC, 0,5A
Viewing angle

Purge air connection
G ½“
1.25 kg
Operational mode
Intermittent operation, continuous operation and 72-hour operation without permanent supervision

Electrical safety
Self-monitoring and fail-safe

Safety time
1, 2, 3, 5 seconden