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Hochiki CHQ-ISM/DIN Intrinsically Safe Compatible Sounder Module - DIN Enclosure
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The Hochiki CHQ-ISM/DIN Sounder Control Module interfaces between the Hochiki Analogue system via a CHQ-DSC2(SCI) or conventional sounder outputs and the intrinsically safe sounder/beacon units via an intrinsically safe barrier. The module provides line monitoring for open or short circuits on the wiring connected to both the safe and hazardous areas.
| Key Features |
|---|
| > Provides dual sounder circuits > Provides fault-monitored input > Interfaces between loop and I.S. sounders/beacons > Fully monitored for short-circuits > Requires 24 V dc external power supply |
| Manufacturer | Hochiki |
|---|---|
| MPN | CHQ-ISM/DIN |
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| Description | Hochiki Intrinsically Safe Sounder Interface Module, DIN enclosure |
| Product Code | CHQ-IZM/DIN |
| PSU Supply voltage (typical): | 24V |
| I.S. BARRIER 1 Voltage (max.): | 28V |
| I.S. BARRIER 2 Voltage (max.): | 28V |
| Quiescent current (max.): | 50 mA |
| SNDR CCT 1 Current poweredwith 24V (typical): | 12 mA |
| SNDR CCT 2 Current poweredwith 24V (typical): | 12 mA |
| I.S. BARRIER 1 Load Current: | 40 mA max. |
| I.S. BARRIER 2 Load Current: | 40 mA max. |
| Maximum Cable Resistance on I.S. barrier terminals: | 25R |
| EOL CCT 1: | User Determined |
| EOL CCT 2: | User Determined |
| Monitored input EOL: | 10K Ω resistor (supplied) |
| Input Thresholds: | Normal condition (10KΩ±5%): 10.5KΩ max. On/Activated (>100KΩ): 100Ω min. On/Activated (>50KΩ): 50Ω max. |
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