Vaisala GMM220 - Manual (Page 5)

GMM220 _____________________________________________________ CO2 Transmitter Modules
M010115EN-E _______________________________________________________________________ 5
Technical Data
Carbon Dioxide
Measuring ranges
GMM221 0 … 2%, 0 … 3%, 0 … 5%, 0 … 10% , 0 … 20% CO
2
GMM222 0 … 2000 ppm, 0 … 3000 ppm, 0 … 5000 ppm,
0 … 7000 ppm, 0 … 10 000 ppm
Accuracy (including repeatability, non-linearity and calibration uncertainty)
at 25 °C and 1013 hPa
GMM221 ±1.5% of range + 2 % of reading
(applies for concentrations above 2% of full scale)
GMM222 ±1.5% of range + 2 % of reading
Nonlinearity ± 0.5% FS
Typical output temperature
dependence -0.3% of reading / °C
Typical pressure
dependence +0.15 of reading/hPa
Long-term stability <±5 %FS / 2 years
Response time (63%) 20 seconds (GMM221)
30 seconds (GMM222)
Warm-up time 30 seconds, 15 minutes (full specifications)
Inputs and Outputs
Outputs 0 ... 20 or 4 ... 20 mA, 0 ... 1 V, 0 ... 2V
0 ... 2.5 V, or 0 ... 5 V
Analog output resolution 12 bits
Recommended external load:
current output max. 200 Ω
voltage output min. 1000 Ω
Operating voltage 11 … 20 VDC or 18 … 30 VDC
Connections Screw terminals, wire size 0.5 ... 1.5 mm2l
Power consumption < 2.5 W
Operating conditions
Operating temperature -20…+60 °C (-4 ... +140 °F)
Storage temperature -30 ... +70 °C (-22 ... +158 °F)
Operating pressure 700 ... 1300 hPa
Humidity range
probe 0 … 100 %RH (non-condensing)
mother board 0 … 85 % RH (non-condensing)
Mechanics
Probe:
housing material PC plastic
housing classification IP65
Weight:
GMM221(w/ 2m cable) max. 180 g
GMM222 (w/ 2m cable) max. 200 g