Vaisala GMM20W Technical data

GMM20W Carbon Dioxide Module for OEM Applications

www.vaisala.com

Features/Beneﬁts

Incorporates the silicon based

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Vaisala CARBOCAP® Sensor

Stable in terms of time and

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temperature

Dust, water vapor or most

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chemicals do not aect the measurement accuracy of the sensor

Small size enables easy

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integration into various systems

The Vaisala CARBOCAP® Carbon Dioxide Module GMM20W is designed for OEM applications in benign environments.

Technical data

Performance

CARBON DIOXIDE MEASUREMENT

Measurement range 0 ... 2000 ppm

(nominal; can be calibrated for other ranges:

0 ... 5000 ppm, 0 ... 10,000 ppm, 0 ... 20,000 ppm) Accuracy (including repeatability, non-linearity and calibration uncertainty)

± (2 % of range + 2%

of reading) Long-term stability <±5 % of range / 5 years Response time (63%) 1 minute Warm-up time minute, 15 minutes full speciﬁcations Weight 45 g

Inputs and outputs

Outputs 0 ... 20 or 4 ... 20 mA and 0 ... 10 V Resolution of analog outputs 8 bits

current output max. 500 ohm

voltage output min. 1 kohm Operating voltage nominal 24 VAC/DC (18 ... 30 VDC) Power consumption <2.5 W

Operating environment

Temperature -5 ... +45 °C (+23 ... +113 °F) Humidity 0 ... 85 %RH, non-condensing Electromagnetic compatibility EN61326-1,

Generic Environment

Dimensions

Dimensions in mm

CARBOCAP® is a registered trademark of Vaisala.

Accessories and options

Display and relay option GMI21 Relay output option GMR20 Calibration software kit (disk and serial COM adapter) Analog temperature module* (not available when display option is added)

For more information, visit www.vaisala.com or contact us at sales@vaisala.com

19222GM

GMA20T

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