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Detector for burnable gasses, HF500

Detector for burnable gasses, HF500

Combustible gas is dangerous if the concentration accumulates in such a way that there is a danger of explosion...

Product Description

Combustible gas is dangerous if the concentration accumulates in such a way that there is a danger of explosion. This level is called the lower explosion limit (LEL). The HF500 detector sounds an alarm when the gas concentration reaches 10% of the lower explosion limit (10% LEL). 

  • with green LED for recognition activation
  • with red LED and acoustic signal when gas is detected
  • automatic reset when gas disappears
  • in the event of an alarm, the acoustic signal can be switched off for 5 minutes, if gas is still present after 5 minutes, the acoustic signal will sound again
  • with yellow fault LED, this indicates that the HF500 needs to be replaced
  • with test button for monthly test
  • recommended replacement date shown on the front

Technical Properties

Switch function/capacity

alarm relay: 5A, 250Vac; SPDT 

Housing (HxWxD) 104 mm | 150 mm | 40 mm
Power source

110..230 Vac, 50/60Hz 

Media temp. -10 ... 55 oC
Maximum humidity 95 %rh

Products

Product Type Product description
Product

HF500NG-NEFR

Detector for natural gas


HF500LPG-NEFR

Detector for LPG