DFU911

On Request

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  • Dust filter unit for ASD
  • Aspiration smoke detection in dirty environments
  • Approval EN 54-20 / EN 54-27
  • Service life time monitored from the ASD control panel
  • Description
  • Specifications
  • Contents
  • Downloads

The DFU911 filter unit is intended for use of ASD smoke detection in dusty and dirty environments.

DFU911 will significantly increase the lifetime of the smoke sensors installed in the ASD, while providing greater reliability against false alarms.

  • SECURITON
  • Dust filter unit for ASD
  • Aspiration smoke detection in dirty environments
  • Approval EN 54-20 / EN 54-27
  • Service life time monitored from the ASD control panel
Reference DFU911
ApprovalEN 54-20 / EN 54-27 / EN [%VAR%]
Environmental conditionsAccording to IEC 60721-3-3 / EN 60721-3-3 3K5 / 3Z1
Ambient humidity conditions95 / 70 % hum. rel (temporarily non-condensing / permanent)
Temperature range0 - +60 °C
Max. temperature. of storage allowed0 - +70 °C
Firmware versionsASD 531 / 532 from 01.01.xx
ASD 533 / 535 from 01.08.xx
Software versionsASD Config from 2.1.0
ASD PipeFlow from 2.5.0
Dimensions (w. x al. x prof.) 111 x 210 x 137 mm
Weight490 g
Housing materialaBS blend, UL 94-V0
Colourgray 280 70 05

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