![siemens cerberus pro fc901 siemens cerberus pro fc901](https://www.sipatec.org/files/uploads/BA720.jpg)
Standards regarding the restriction of the use of certain hazardous substances in electrical and electronic equipment Offer wide operating temperature & relative humidity (RH) range Green detectors, as they are RoHS-compliant, meeting the Prevents false alarms thanks to intelligent algorithms Thermal detector provides 7 selectable alarm thresholds, fixed Solution for standard applications with average risk and moderate potential for deceptive phenomena Provide multiple selectable temperature alarm thresholds, fixed and rate-of-rise Selectable as a multi-criteria fire detector and/or a CO life safety gas detectorĮnvironmentally friendly green detectors, as they are RoHS-compliant and replace the need for ionization detectors due to forward/backward light scattering technology Include a multi-purpose carbon monoxide (CO) life safety andfire detector Provide redundant optical and thermal sensors for extraordinary reliabilityĬomply with NFPA 76 (Telecommunication Standard) as a Very Early Warning Fire Detector (VEWFD) as a result ofhigh-sensitivity alarm capabilities
![siemens cerberus pro fc901 siemens cerberus pro fc901](https://www.sipatec.org/files/uploads/DLR1192.jpg)
Model OH921 detectors utilize a modern, accurate, and shock-resistant thermistor to sense temperature changes.Cerberus PRO detectors and peripherals perfectly connectedĬerberusTM PRO Advanced detectors with ASAtechnologyTMĪdvanced multi-criteria fire detector utilizing optical, thermal,and optional CO sensorĮxtreme immunity to deceptive phenomena while providing enhanced detection with the industrys only No False Alarm Guarantee Each Model OH921 detector has microcomputer-chip technology and highly stable, solid-state electronic circuitry. Model OH921 Siemens is a plug-in, (2) two-wire thermal (heat) detector, compatible with Cerberus PRO Modular | Model FC9-series FACPs | FireFinder XLS/V. Model DB-11 has aesthetically conducive plugs to cover the outer mounting-screw holes. The Model DB-11 detector base can be used with the optional Siemens Model LK-11 detector locking kit, which contains 50 detector locks and an installation tool to prevent unauthorized removal of the detector head.
![siemens cerberus pro fc901 siemens cerberus pro fc901](https://i.ytimg.com/vi/EWxSsuRZVbU/maxresdefault.jpg)
The base utilizes screw-clamp contacts for electrical connections and self-wiping contacts for increased reliability. Each Model OH921 detector provides three (3) pre-programmed parameter sets that can be selected by the FACP.Īll Model OH921 Siemens detectors use a surface-mounting base, Model DB-11 or Model DB-11E, which mounts on a 4-inch (10.2 cm.) octagonal, square or single-gang electrical box. The signal processing with detection algorithms allows the detector to first gather the smoke and thermal data, and then analyze this information in the detector’s `neural network.’īy comparing data received with the common characteristics of fires or fire signatures, Model OH921 can compare these signals to those of deceptive phenomena that cause other detectors to trigger a false alarm. Model OH921 Siemens also utilizes a modern, accurate, and shock-resistant thermistor to sense temperature changes. When smoke enters the detector chamber, light emitted from the IRLED is scattered by the smoke particles c and is received by the photodiode.
![siemens cerberus pro fc901 siemens cerberus pro fc901](https://demo.documents.pub/img/378x509/reader025/reader/2021043001/5ab157ac7f8b9a7e1d8c486c/r-1.jpg)
The smoke chamber is designed to manage light dissipation and extraneous reflections from dust particles or another non-smoker, airborne contaminants in such a way as to maintain stable, consistent detector operation. Under normal conditions, light transmitted by the LED is directed away from the photodiode and scattered through the smoke chamber in a controlled pattern. Model OH921 Siemens utilizes an infrared light-emitting diode (IRLED), and infrared light sensing photodiode. Description OH921 Siemens Multi-Criteria Fire Detector