The S1131 system is a fire safety product that includes the OP620 analog photoelectric smoke detector. The detector features high stability, resistance to interference and corrosion, and is suitable for early fire detection and alarm linkage. It uses adaptive addressing and a ring-shaped two-wire loop, with short circuit isolation switches and self-checking function. The detector complies with national standards and can be linked with other devices.
The Siemens S1131 fire safety system uses the CFe20 optical‑sensor detector, designed for high stability and resistance to contamination, magnetic interference, temperature, humidity and corrosion. The detector integrates a short‑circuit isolation function and can alert the controller and fire‑brigade in case of a fault.
Installation is performed by mounting the detector on a pre‑installed base (SO620). The system supports various circuit topologies, including parallel, series and mixed configurations, with a maximum cable length of 2000 m and up to 128 detectors per circuit. The guide also lists compliance with national standards GB4715‑93 and GB50116. This manual is written in Chinese.
| Working voltage | 16‑28 V |
|---|---|
| Working temperature | -25 °C to +60 °C |
| Storage temperature | -30 °C to +75 °C |
| Static current | 200 µA |
| High sensitivity | 2.2 %/m |
| Normal sensitivity | 3.2 %/m |
| Anti‑magnetic interference | 50 V/m up to 1 GHz |
| Lamp current / flash | 15 mA, 32 ms flash, 1 s duration |
| Compliance | GB4715‑93, GB50116 |
The detector operates on a voltage range of 16 to 28 V.
The detector circuit can be laid up to 2000 m long.
The detector complies with GB4715‑93 and GB50116 standards.