Catalytic Hydrogen Detector in IP55 Box

G704C-2

The detector is equipped with a head with a catalytic sensor element that measures the concentration of the explosive gas on the LEL (Lower Explosive Limit) scale. The detector is delivered with a pre-alarm threshold of 15% and an alarm threshold of 30% of the LEL. Optionally, an interface with Android App and a PC software are available, which allow the field testing of the detector, and the modification of detection thresholds, alarm filters, addressing, full scale, etc. The detector is equipped with an ADFT IP55 certified dust-proof metal box, housing both the communication electronics and the sensor element, positioned in the lower part, and protected by a special stainless-steel mesh.

  • Multiple communication modules for all kinds of applications
  • Easy replacement of sensor element in case of depletion or failure
  • ATEX II 2G Ex-d IIC T6 Gb certified explosion-proof metal box
  • Optionally configuration via Android App and PC software
  • Direct connection with ESSER by Honeywell loop transponder
  • Modbus Interface for communication to management systems
Supply voltage
12/24 Vdc
Detection type (pre-heating of 150”)
Catalytic
Service life in optimal conditions
3/4 years
Current consumption in standby mode
max. 90 mA
Current consumption in alarm mode
max. 110 mA
Operating temperature
0 °C / +50 °C
Treshold
0-100% LEL
Resolution
0.05 up to 4%
Linearity readout
±10%
Precision readout @ 20 °C
±12%
Gas response time T90
< 30 seconds
Box
ADFT IP55
Weight
370g
Dimensions HxWxD (mm)
175 x 100 x 60
Coverage on installation
4/5 m @ ceiling
  • Since the detectors will be pre-assembled with the communication module, please indicate in your order with two separate lines next to each other the detector type and the related communication module quantity needed.
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  • ES3-L7 ESSER by Honeywell Interface: 3 relay output module for fault, pre-alarm, alarm
  • G7-42 Analog output module at 4-20 mA
  • G7-RL4 4 relay output module
  • G7-MB Modbus output module