User manual VAISALA GMM111 DATASHEET

[. . . ] www. vaisala. com GMM111 Carbon Dioxide Module The Vaisala CARBOCAP® Carbon Dioxide Module GMM111 is a CO2 measurement module with flow-through aspiration. Features/Benefits GMM111 The Vaisala CARBOCAP® Carbon Dioxide Module GMM111 is designed especially for control of biological processes where high CO2 concentrations are used. [. . . ] The tunable FPI filter measures CO2 absorption, and simultaneously a reference wavelength. This internal reference measurement compensates effectively for any changes in the optical path, such as light source intensity changes and contamination. In the HVAC market, this type of reference measurement is a unique feature to Vaisala CARBOCAP® products. The true internal reference measurement of Vaisala CARBOCAP® CO2 transmitters provides years of stable CO2 measurements. Technical data Performance CO2 measurement range 0 . . . 20 % Accuracy (including repeatability, non-linearity and calibration uncertainty) ±(1. 5% of range + 3 % of reading) Long-term stability ±1 % CO2/2 years 1 min at 0. 5 l/min flow Response time T90 Flow rate dependence < 1 l/min flow no effect 1 . . . 10 l/min flow 4 % of reading/ l/min Temperature dependence, typical -0. 3 % of reading/°C Pressure dependence, typical +0. 15 % of reading/hPa Warm-up time 1 min, 10 min for full specifications Product lifetime > 10 years Dimensions Dimensions in mm mA V 0 B A 0 24V mA V 0 B A 0 24V 25 Ø3. 2 TUBE I. D. Ø6) 30 6 65 60 Operating environment Temperature +5 . . . 1200 hPa Gas flow operating range < 10 l/min recommended range 0. 2 . . . [. . . ] All specifications -- technical included -- are subject to change without notice. 96 [. . . ]