The Hochiki SPC-ET is a two-wire conventional optical beam smoke detector made up of an emitter and a receiver. It covers a distance of 5 to 100 m between the two units, giving up to 1500 m² of coverage.
On a conventional system, the emitter and receiver can be powered directly from the zone, or the emitter can use a separate 24 VDC supply. It can also be interfaced to Hochiki's ESP system by connecting the receiver to a CHQ-SZM single zone module or CHQ-DZM dual zone module. A termination module fits a standard UK dual back box for surface or flush mounting, with Schottky or Zener line continuity options.
Key features
- 5 to 100 m range, up to 1500 m² coverage
- Automatic compensation and automatic signal strength adjustment
- Emitter can be powered directly from the zone (or loop)
- Latching or non-latching fault relay
- Can be interfaced to ESP via a CHQ-DZM or CHQ-SZM
- Full line continuity options (Schottky / Zener)
- Approved by LPCB and VdS
Technical specifications
- Ordering code: SPC-ET (ivory)
- Operating voltage: 15 to 33 VDC
- Quiescent current (typical): 250 µA
- Maximum alarm current: 50 mA
- Operating range: 5 to 100 m (emitter to receiver)
- Sensitivity: 25%, 50% or 60% obscuration (selectable)
- Operating temperature: -10 °C to +50 °C
- Storage temperature: -30 °C to +60 °C
- Maximum humidity: 95% RH, non-condensing (at 40 °C)
- Receiver: 685 g, H 145 x W 86 x D 100 mm
- Emitter: 600 g, H 145 x W 86 x D 100 mm
- Approvals: LPCB (EN54-12)
