Emerson Automation Solutions
Fixed General Purpose Gas Detector
HART Field Device
1. The Rosemount 925FGD is a fully-assembled unit for either sensor-direct-mount or sensor remote-mount installations. For direct-mount installations, the Rosemount 925FGD will consist of one standalone Rosemount 925 transmitter along with one Rosemount 905 junction box with a Rosemount 625 sensor housing wired and attached. For either configuration, you can order the Rosemount 925FGD with or without the sensor module for instances where sensor modules will be installed after the initial transmitter installation. The Rosemount 925FGD transmitter consists of the transmitter electronics, an LCD display, and infrared touch buttons contained in an explosion-proof housing. The transmitter provides outputs, including 0-20 mA analog signal, fault relay, alarm relays, and HART® protocol. The transmitter is also equipped with status indication LEDs.
2. All Rosemount 925 sensors are smart sensors, meaning all configuration, calibration, and gas sensing data is stored directly on or generated directly from the sensor. This data is then communicated to the Rosemount 925 transmitter, which displays information on the LOI and generates outputs for communication with site control systems. For combustible hydrocarbon gas detection, the Rosemount 925FGD incorporates the Rosemount 625ND sensor module. The Rosemount 625ND sensor module uses nondispersive infrared technology to measure combustible hydrocarbon gas using absorption spectroscopy in the infrared sensor bands.
3. Approved to the latest hazardous area and performance standards for worldwide use.
4. Certified to SIL2 functional safety standards.