Introduction to GMP251 - GMP251

GMP251 is designed for CO₂ measurement in demanding applications that require reliable and accurate performance. The measurement range is 0 ... 20 %CO₂.

The probe is based on Vaisala’s patented 2nd generation CARBOCAP® technology and equipped with Vaisala Microglow infrared light source. The probe is easy to install with a plug-in/plug-out M12 connection.

Sensor performance is optimized at 5 %CO₂ measurement. For compensation purposes, the probe also includes an internal temperature sensor that allows measurement compensation according to ambient temperature. As dust and most chemicals do not affect the measurement, and the effect of temperature, pressure and background gas can be compensated for, the probe can provide accurate and stable measurements in a wide range of applications.

1

5-pin M12 connector. For pinout, see Wiring.

2

Probe name and orientation mark for Vaisala transmitter installations (front) and laser-printed type label (back).

3

Probe body. Contains the main component board.

4

Measurement cuvette with optics and CARBOCAP® CO₂ sensor.

5

Filter (see Filter Options.