The Rosemount 925 Fixed Gas Detector Transmitter is designed to be used with the Rosemount 625 Gas Sensor and is approved to the latest hazardous area and performance standards for worldwide use.

Features

• Gas transmitter can be fitted with a wide range of combustible gas sensors
  

Specifications

Operating Temperature

-40 to +158 °F (-40 to +70 °C)
-67 to +158 °F (-55 to +70 °C) with heater on

Sensor Type

Rosemount 625 Non-Dispersive Infrared Sensor

Output

4-20 mA with HART® 7 Protocol, Relays

Display/Interface

The integral LCD display can display alert state and diagnostic information.

Humidity Range

0-95% relative humidity, non-condensing

Power Supply

Power supply range: 18 to 30 VDC
Max. power consumption: 4.0 W with heater on

Accuracy

Gas accuracy: ±3% LEL < 50% LEL and ±5% LEL > 50% LEL
4-20 mA accuracy: ±0.1% of span