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Crowcon Xgard Hazardous Area ESU EX, for One Detector

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Crowcon Xgard Hazardous Area ESU EX, for One Detector
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Crowcon Xgard Hazardous Area ESU EX, for One Detector

Crowcon Xgard Hazardous Area ESU EX, for One Detector


C01987 Xgard Hazardous Area ESU EX, for One Detector by Crowcon

The Environmental Sampling Unit provides a cost-effective solution for monitoring high-density gases such as chlorine, sulphur dioxide and flammable vapours, in environments where the positioning of conventional sensors is not practical.

The sampling chamber is fitted with an electric fan, which draws an air sample via a pipe. Xgard gas detectors are fitted to the chamber to monitor for the presence of flammable or toxic gases.


  • Can monitor up to 12 metres of perforated pipe using a fan-aspirated single sensor.
  • Flameproof fan available for flammable gas applications.
  • Fan-fail monitoring is available for up to four units using a Gasmaster control panel.
  • Typical applications include gas detection in LPG and chlorine stores, flammable gas detection in wet wells.
ESU Part Numbers  Hazardous area certified ESU:
C01987 (for one sensor)
C011029 (for two sensors)
C011030 (for three sensors)

Non certified ESU (safe area):
C011004 (for one sensor)
C011031 (for two sensors)
C011032 (for three sensors) 
Dimensions  397 (w) x 363 (h) x 180 (d) mm (15.3 x 10.6 x 7 inches) 
Material  Polycarbonate 
Fan Power 3 Watts 
Supply Voltage (Fan) 24v DC nominal from Gasmaster or Vortex 
Operating Temperature -10 to + 50ºC (14 to 104ºF)
Approval Code (certified type only) Fan: ATEX II 2 G EEx m IIC T4
Fan junction box: ATEX II 2 G EEx d IIC T6 
Certificate Number Fan: Baseefa 03 ATEX 0033X
Fan junction box: Baseefa 04 ATEX 0024X 
Piping  60mm Diameter PVC (2” pipe) 
Maximum Pipe Length 12 Metres (36’)
Weight (excluding piping) 3.5kg (7.7 lbs) excluding gas detector
Accessories  The ESU is supplied with a set of fittings comprising: Retaining nut, washer and gasket for mounting the Xgard detector(s). 2 elbows, 2 end caps, 1 T-piece, 2 reducing bushes and 4 pipe clamps. 2” pipe is available separately in 2 metre lengths.

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