2420 38TH ST ROYELL MANUFACTURING 2025-05-14

Data Sheet = Intelligent Detection Devices Photoelectric Smoke Detector Model OP921 ARCHITECT AND ENGINEER SPECIFICATIONS • Compatible with Siemens Model 'H'-series devices on the same loop (with Model FC9—series fire-alarm control panels) • Compatible with Model 8720/ DPU (device programmer/ loop tester) • Utilizes advanced microprocessor-based signal processing t • Extended temperature and humidity operating range • Each detector is self-testing: • self monitored for sensitivity within ®UL Listed limits • complete diagnostics performed every 10 seconds • Polarity insensitive utilizing Sure Wire" technology • Compatible with Model DB-11—series mounting bases soft • Tri-color detector status LED with 360°viewing • Field-selectable application sensitivity profiles • Remote sensitivity-measurement capability • Utilizes advanced signal processing • Automatic environment compensation • Superior EMI/ RFI immunity • ®UL268A Listed [for direct air-duct use], • RoHS compliant OULC Pending; CSFM Approved • Product Overview The Photoelectric Smoke Detector(Model OP921) uses Model 8720/DPU eliminates the need for cumbersome, state-of-the-art microcontroller circuitry and surface- unreliable mechanical programming methods,such as dials mount technology for maximum reliability. Model or switches, and reduces installation and service costs by OP921 incorporates an optical sensor using a light- electronically programming and testing the detector prior to scattering detection principle. The device utilizes installation. advanced software algorithms to analyze the signals, For proper operation of the field-device programmer/test and provides highly stable and accurate smoke unit,the technician selects the accessory's program mode, detection. and enters the desired address. In turn, Model 8720/DPU Further, Model OP921 uses state-of-the-art automatically sets and verifies the address,as well as tests microprocessor circuitry with error check;detector self- the detector. When in the'test'mode, Model 8720/DPU will diagnostics,and supervision programs. perform a series of diagnostic tests without altering the Field Device Programmer/Test Unit address or other stored data,allowing technicians to determine if the detector is operating properly. Model OP921 is compatible with the Siemens field Model 8720/DPU operates on AC power or rechargeable device programmer/test unit(Model 8720/DPU), which is a compact, portable, menu-driven accessory batteries,providing flexibility and convenience in for electronically programming and testing detectors programming and testing equipment from practically any easily and reliably. location. kj CerberuSTM PRO 9902 Fire Safety &Security Products Photoelectric Smoke Detector Answers for infrastructure SIEMENS 13120