GM70 specifications - GM70

GM70 User Guide

Document code
M010139EN
Revision
H
Language
English
Product
GM70
Document type
User guide
Table 1. GMP220 probe measurement performance
Property Description/Value
Response time (63 %)

GMP221 probe: 20 s

GMP222 probe: 30 s

Warm-up time

30 s (15 min to full specification)

30 min to full specification with GM70PUMP

Sensor type CARBOCAP®
Measurement ranges
High concentrations of CO2, short probe (GMP221) 0 … 2 %, 0 … 3 %, 0 … 5 %, 0 … 10 %, 0 … 20 %
Low concentrations of CO2, long probe (GMP222) 0 … 2000 ppm, 0 … 3000 ppm, 0 … 5000 ppm, 0 … 7000 ppm, 0 … 10 000 ppm
Accuracy (at 25 °C and 1013 hPa) 1
GMP221 probe ±(1.5 % of range + 2 % of reading) 2
GMP222 probe ±(1.5 % of range + 2 % of reading)
Temperature dependence, typical −0.3 % of reading/°C
Pressure dependence, typical +0.15 % of reading/hPa
Long-term stability < ±5 %FS / 2 years
Measurement environment
Operating temperature

−20 … +60 °C (−4 … +140 °F)

+15 … +40 °C (+59 … +104 °F) with GM70PUMP

Relative humidity 0 … 100 %RH, non-condensing
Operating pressure 700 … 1300 hPa
Flow range (diffusion sampling) 0 … 10 m/s
Table 2. GMP220, GMH70, and GM70PUMP mechanical specifications
Property Description/Value
Probe cable length 1.9 m (6.2 ft)
IP rating
GMH70 handle

IP65: Dust-tight. Protected from water jets from any direction.

GM70PUMP

IP54: Limited protection against dust. Protected from water splashes from any direction.

Housing material
GMP221 and GMP222 probe PC plastic
GMH70 handle ABS/PC blend
GM70PUMP Aluminum casing
Weight
GMH70 with GMP221/GMP222 probe 230 g (8 oz)
GM70PUMP with GMP221/GMP222 probe 700 g (25 oz)
Storage
Storage temperature −30 … +70 °C (−22 … +158 °F)
Storage humidity 0 … 100 %RH, non-condensing
Table 3. GM70 compliance
Property Description/Value

EMC compatibility

EN 61326-1:1997 + Am1:1998 + Am2:2001, Electrical equipment for measurement, control and laboratory use - EMC requirements; generic environment

1 Including repeatability, non-linearity and calibration uncertainty.
2 Applies to concentrations above 2 % of full scale.