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Fire Detection Duty Sensor (FDD)

The fire detection duty sensor has multipoint thermocouples which are connected in parallel to provide an average temperature across the measurement span.

Product Features

  • Sheath material in Grade 316L, 304, 321, 310 stainless steel.
  • Available in thermowell diameters from 25mm to 50mm OD in metric & imperial, lengths up to 2M.
  • MI thermocouples type 'K' and all sensor tips are in direct contact with the thermowell inner wall.
  • From 2 - 8 integral sensors per thermowell
  • Plain, flanged or screwed connection.
  • Complete with a standard ceramic connection block (up to 8 pole) or a temperature transmitter providing a 4 to 20mA output signal.
  • Die-cast aluminium connection heads as standard, M20 cable entry and IP65 rating
  • Can also be supplied with a grade 316 stainless steel connection head.

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