Carbon dioxide measurement

Measurement range options
        GMM221

        GMM222
        for low concentrations

Accuracy (incl. repeatability, non-linearity and calibration uncertainty)at +25 °C (+77 °F) and 1013 hPa
        GMM221

        GMM222

0 ... 2 %, 0 ... 3 %, 0 ... 5 %, 0 ... 10 %, 0 ... 20 %

0 ... 2000 ppm, 0 ... 3000 ppm, 0 ... 5000 ppm,
0 ... 7000 ppm, 0 ... 10 000 ppm





± (1.5 % of range + 2 % of reading)
(applies for concentration above 2% of full scale)
± (1.5 % of range + 2 % of reading)

Operating environment

Temperature
Pressure

-20 ... +60 °C (-4 ... +140 °F)
700 … 1300 hPa

Inputs and outputs

Outputs

Operating voltage
Power consumption

0 ... 20 or 4 ... 20 mA and 0 ... 1 V, 0 ... 2 V,
0 ... 2.5 V or 0 ... 5 V
11…20 VDC or 18 ...30 VDC
<2.5 W

Mechanics

Probe cable length
Weight
        GMM221 (w/2 m cable)
        GMM222 (w/2 m cable)
Probe housing material
Housing classification (probe only)

0.6 m, 2 m, 6 m, or 10 m

max. 180 g
max. 200 g
PC plastic

IP65 (NEMA 4)

Options and accessories

GMP221, GMP222
25245GM
GM45156
GMP343Z200SP
GMP343Z600SP
GMP343Z1000SP
19040GM

spare probe
clips (2 pcs) for attaching the probe
mounting flange for the probe
2 m probe cable
6 m probe cable
10 m probe cable
serial COM adapter