Carbon dioxide measurement
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Measurement range options
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GMM221 |
0 ... 2 %, 0 ... 3 %, 0 ... 5 %, 0 ... 10 %, 0 ... 20 % |
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GMM222
for low concentrations |
0 ... 2000 ppm, 0 ... 3000 ppm, 0 ... 5000 ppm,
0 ... 7000 ppm, 0 ... 10 000 ppm |
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Accuracy (incl. repeatability, non-linearity and calibration uncertainty)at +25 °C (+77 °F) and 1013 hPa |
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GMM221 |
± (1.5 % of range + 2 % of reading)
(applies for concentration above 2% of full scale) |
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GMM222 |
± (1.5 % of range + 2 % of reading) |
Operating environment
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Temperature
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-20 ... +60 °C (-4 ... +140 °F)
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Pressure |
700 … 1300 hPa |
Inputs and outputs
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Outputs
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0 ... 20 or 4 ... 20 mA
and 0 ... 1 V, 0 ... 2 V,
0 ... 2.5 V or 0 ... 5 V
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Operating voltage |
11…20 VDC or 18 ...30 VDC |
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Power consumption |
<2.5 W |
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Mechanics
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Probe cable length |
0.6 m, 2 m, 6 m, or 10 m |
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Weight |
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GMM221 (w/2 m cable) |
max. 180 g |
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GMM222 (w/2 m cable) |
max. 200 g |
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Probe housing material |
PC plastic |
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Housing classification (probe only) |
IP65 (NEMA 4) |
Options and accessories
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GMP221, GMP222 |
spare probe |
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25245GM |
clips (2 pcs) for attaching the probe |
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GM451
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mounting flange for the probe
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GMP343Z200SP |
2 m probe cable |
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GMP343Z600SP |
6 m probe cable |
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GMP343Z1000SP |
10 m probe cable |
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19040GM |
serial COM adapter |
