GMP231 specifications - GMP231

GMP231 User Guide

Document code
M211501EN
Revision
E
Language
English (United States)
Product
GMP231
Document type
User guide
Table 1. Measurement performance
Property Description/Value
Measurement range 0 … 20 %CO2
Calibration uncertainty at 5 %CO2 ±0.1 %CO2
Start-up time < 20 s
Warm-up time for full spec. < 3 min
Response time
T63 < 30 s
T90 < 50 s
Accuracy at 37 °C, 1013 hPa
Repeatability at:
0 … 8 %CO2 ±0.1 %CO2
8 … 12 %CO2 ±0.2 %CO2
12 … 20 %CO2 ±0.4 %CO2
Non-linearity at 0 … 20 %CO2 ±0.1 %CO2
Temperature dependence
With compensation at 3 … 12 %CO2, 20 … 60 °C ±0.1 %CO2
Without compensation (typical) -0.4 % of reading/°C
Pressure dependence
With compensation at 3 … 12 %CO2, 700 … 1100 hPa ±0.015 % of reading/hPa
Without compensation (typical) +0.15 % of reading/hPa
Humidity dependence
With compensation at 0 … 20 %CO2, 0 … 100 %RH ±0.9 % of reading (at 37 °C)
Without compensation (typical) +0.05 % of reading/%RH
O2 dependence
With compensation at 0 … 20 %CO2, 0 … 90 %O2 ±0.6 % of reading
Without compensation (typical) -0.08 % of reading/%O2
Long-term stability
0 … 8 %CO2 < ±0.2 %CO2/year
8 % … 12 %CO2 < ±0.5 %CO2/year
12 % … 20 %CO2 < ±1.0 %CO2/year
Table 2. Operating environment
Property Description/Value
Operating temperature for CO2 measurement 0 … +70 °C (+32 … +158 °F)
Max. temperature durability in standby mode (sensor head only) Max. +195 °C (+383 °F)
Heat sterilization 180 °C durability At least 120 cycles
Storage temperature -40 … +75 °C (-40 … +167 °F)
Pressure (compensated) 500 … 1100 hPa
Pressure (operating) < 1500 hPa
Humidity 0 … 100 %, non-condensing
Condensation prevention Sensor head heating when power on
Chemical tolerance DMSO, IPA (70 %), H2O2 (2000 ppm, non-condensing), ethanol, acetic acid
Electromagnetic compatibility EN61326-1, Generic Environment
Table 3. Inputs and outputs
Property Description/Value
Digital outputs I2C 5 V, RS-485 (2-wire with Vaisala Industrial Protocol)
Analog output

0 … 20 mA (scalable)

max. load 600 Ω

Power consumption < 1 W (pulsed)
Operating voltage

11 … 30 VDC

20 ... 30 VDC (with analog output)

Table 4. Mechanical specifications
Property Description/Value
Connector M12/8 pin
Weight

150 g (5.29 oz) without cable

200 g (7.05 oz) with cable

IP rating

IP54 (sensor head)

IP20 (electronics housing)

Materials
Housing Metal coated plastic ABS+PC
Inner tube Aluminum
Probe tube PPSU
Filter PTFE
Dimensions
Probe tube max. diameter 30.2 mm (1.19 in)
Probe tube min. diameter 24.8 mm (0.98 in)
Probe tube length 118.5 mm (4.67 in)
Sensor filter diameter 19 mm (0.75 in)
Sensor filter length 12 mm (0.47 in)