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Dual Zone Monitor with SCI (SIL2 approved)

Model CHQ-DZM(SCI)/SIL is a Dual Circuit Zone Controller designed to allow up to 60 conventional detectors (30 on each zone) to be interfaced to Hochiki’s ESP analogue addressable system. The unit also features a Schottky Diode line continuity option, when used in conjunction with the optional LCMU.

Full monitoring against malfunction or disconnection, together with a self-test feature through the ESP protocol, ensuring the integrity of the CHQ-DZM(SCI)/SIL at all times. The CHQ-DZM(SCI)/SIL utilises simple DIL switches for reliable addressing.

When Resistive EOL option is chosen the conventional zone on the CHQ-DZM(SCI)/SIL does not support any line continuity options, therefore if Call Points are being interfaced they should be wired at the beginning of the zone.

  • SIL Level 2 approved
  • Ideal for use in oil and gas environments
  • Single loop address
  • Supports two independent zones of conventional detectors
  • Both zones fully monitored for short/open circuit
  • Requires an auxiliary 24 VDC supply
  • Both models feature an integral short circuit isolator
  • Approved by LPCB