Carbon Dioxide Probe

Vaisala GMP251

for %-level measurements in life science incubators, cold storages and all demanding applications

Vaisala CARBOCAP Carbon Dioxide Probe GMP251 is a new intelligent probe for measuring carbon dioxide. This robust, stand-alone measurement device is designed for use in demanding applications, such as life science incubators, where stable, reliable, and accurate performance is required.

GMP251 is based on Vaisala’s unique, second-generation CARBOCAP technology that enables exceptional stability. A new type of infrared (IR) light source is used instead of the traditional incandescent light bulb, which extends the lifetime of GMP251.

GMP251 incorporates an internal temperature sensor for compensation of the CO2 measurement according to ambient temperature. The eff ects of pressure and background gas can also be compensated for. The measurement range is 0 ... 20 %CO2 and the sensor performance is optimized at 5 %CO2 measurement.

The operating temperature range of the probe is wide (-40 … +60 °C (-40 ... +140 °F)), and the probe housing is classified as IP65. Condensation is prevented as the internal sensor head is heated.

GMP251 is resistant to dust and most chemicals, such as, H2O2 and alcohol- based cleaning agents.

Ease of Use

GMP251 is a compact probe with easy and fast plug-in, plug-out installation. The surface of the probe is smooth, which makes it easy to clean. The probe provides several output options, including analog current and voltage outputs and digital RS-485 output with Modbus protocol.

Applications

GMP251 is ideal for life science incubators, cold storages, fruit and vegetable transportation, and for all demanding applications where stable and accurate %-level CO2 measurements are needed.