Methane CH4 M4-V Infrared Gas Transmitter, digital & 0.4-2.0V or bridge, 0-100% Vol or LEL

Details

Infrared Methane CH4 M4 sensor in 4 or 7 series standard size with integrated digital & analogue (standard 0.4-2.0V) or bridge type dc transmitter. Output on request

Measuring Ranges: 0-100% Vol. or 0-100% LEL CH4. Optional calibration: 0-100% LEL Butane C4H10, 0-100% LEL Ethane, 0-100% LEL Isobutane IC4H10 or 0-100% LEL Propylene C3H6. 

Sensor sizes: 4 or 7 series

Part no: 2112BM4-V

The M4 series of infrared gas detection sensors utilise NDIR (Non Dispersive Infrared) to monitor the presence of Methane CH4, on which the sensor is precalibrated, and hydrocarbons.

This technique is based on the fact that the gas has an unique and well defined light absorption curve in the infrared spectrum that can be used to identify the specific gas. The gas concentration can be determined by using a suitable infrared source and analysing the optical absorption of the light that passes through the gas.

The sensor contains optics and incorporated electronics with software in order to provide an output that is linearised and temperature compensated. The type of output can be of digital MODBUS and analogue voltage type [0.4 V—2 Vdc] (other voltages, falling or rising, are available on request) or bridge type [Vcc/2 ± Δ)] dc (falling or rising and Δ value is to be specified by the customer) depending on the sensor model.

The sensor provides a linearised and temperature compensated digital and analogue voltage output (voltage or dynamic pellistor) that is proportional to the gas concentration.

Available options:

– ATEx approved version infrared CH4 sensor in 4 series sizes with integrated digital & analogue (standard 0.4-2.0V) or bridge type dc transmitter. Output on request (part no. 2112BM4A-V)