UV flame detector 975UR

IRModbusRS-485

The Rosemount 975UR UV/IR flame detector senses radiant energy in the short wave section of both the ultraviolet and infrared portions of the electromagnetic spectrum and can detect hydrocarbon-based fuel and gas fires. The signals from both sensors are analyzed for frequency, intensity and duration. Simultaneous detection of radiant energy in both the UV and IR sensors triggers an alarm signal. The UV sensor incorporates a special logic circuit that helps prevent false alarms caused by solar radiation. Specifications Communication ProtocolOptional HART™ communications on the 0-20 mA analog current (FSK) - used for maintenance, configuration changes and asset management, available in mA source output wiring options. RS-485 Modbus compatible communication link that can be used in computer controlled installations Ambient TemperatureOperating: -76 °F to +185 °F (-60 °C to +85 °C) Storage: -76 °F to +185 °F (-60 °C to +85 °C) Enclosure RatingStainless Steel 316L with electro polish finish Heavy duty copper free aluminum (less than 1%), polyurethane painted MountingStainless Steel 316L with electro polish finish DimensionsDetector 4"x 4.6"x 6.18"(101.6 x 117 x 157 mm) WeightDetector (stainless steel 316L) 6.3 lb (2.9 kg) Detector (aluminum) 2.8 lb (1.3 kg) Tilt mount 2.5 lb (1.1 kg) Certifications/Approvals ATEX and IECEx: Ex II 2 G D Ex db eb op is IIC T4 Gb Ex tb op is IIIC T110 °C Db (Ta -50°C to +85°C) IP66/68