Hochiki Intrinsically Safe Compatible Dual Zone Monitor with SCI

Model CHQ-DZM(SCI)-IS is Dual Zone Module which is fully compatible with Hochiki's ESP analogue addressable protocol and I.S. equipment. It is supplied as an OEM version (as illustrated) which can be fitted within an IP67 rated enclosure. The unit is also available as a DIN Rail mountable module. Addressing is achieved via simple DIL switches.

The device is designed to allow up to 40 (20 per zone) Conventional I.S. CDX Range detectors (SLR-E-IS or DCD-1E-IS) in the hazardous area to be interfaced to Hochiki's ESP analogue addressable system within the safe area. The conventional zones on the CHQ-DZM(SCI)-IS do not support any line continuity options; therefore if Call Points are being interfaced they should be wired at the beginning of the zone.

Key Features:

● Single loop address
● Requires an auxiliary 24 V dc supply
● Supports two independent zones of Hochiki I.S. Conventional Detectors
● Both zones fully monitored for short/open-circuit
● DIN rail version available
● Both models feature an integral short-circuit isolator
(Please note that this module should only be installed in the safe area)