GMP252 Specifications - GMP252

GMP252 User Guide
Document code
M211897EN
Revision
D
Language
English (United States)
Product
GMP252
Document type
User guide
Table 1. Measurement Performance
Property Description/Value
Measurement range 0 ... 10 000 ppmCO2

(up to 30 000 ppmCO2 with reduced accuracy)
Accuracy at 25 °C and 1013 hPa (incl. Repeatability and Non-Linearity)
0 ... 3000 ppmCO2 ±40 ppmCO2
3000 ... 10 000 ppmCO2 ±2 % of reading
Up to 30 000 ppmCO2 ±3.5 % of reading
Calibration Uncertainty
at 2000 ppmCO2 ±38 ppmCO2
at 10 000 ppmCO2 ±105 ppmCO2
Long-Term Stability
0 ... 3000 ppmCO2 ±60 ppmCO2/year
3000 ... 6000 ppmCO2 ±150 ppmCO2/year
6000 ... 10 000 ppmCO2 ±300 ppmCO2/year
Temperature Dependence 0 ... 10 000 ppmCO2
with compensation, -10 ... +50 °C ±0.05 % of reading/°C
with compensation, -40 ... +60 °C < ±0.1 % of reading/°C
without temperature compensation at 2000 ppmCO2 (typical) -0.5 % of reading/°C
Pressure Dependence
with compensation at 0 ... 10 000 ppmCO2, 500 ... 1100 hPa ±0.015 % of reading/hPa
without compensation (typical) +0.15 % of reading/hPa
Humidity Dependence
with compensation, 0 ... 10 000 ppmCO2, 0 ... 100 %RH ±0.7 % of reading (at +25 °C (+77 °F))

without compensation (typical)

+0.05 % of reading/%RH
O2 Dependence
with compensation, 0 ... 10 000 ppm%CO2, 0 ... 90 %O2 ±0.6 % of reading (at +25 °C (+77 °F))
without compensation (typical) -0.08 % of reading/%O2
Start-Up, Warm-Up and Response Time
Start-up time at +25 °C < 12 s
Warm-up time for full spec. < 2 min

Response time (T90) with standard filter

< 1 min
Response time (T90) with spray shield < 3 min
Flow-Through Option
Response time (T90) with > 0.1 l/min 30 s
Flow rate dependence < 1 l/min flow no effect
Flow rate dependence 1 ... 10 l/min flow < 0.6% of reading l/min
Gas flow operating range < 10 l/min
Gas flow recommended range 0.1 ... 0.8 l/min
Table 2. Operating Environment
Property Description/Value
Operating temperature of CO2 measurement -40 ... +60 °C (-40 … +140 °F)
Storage temperature -40 ... +70 °C (-40 … +158 °F)
Humidity 0 ... 100 %RH, non-condensing
Condensation prevention Sensor head heating when power on
EMC compliance EN61326-1, Generic Environment
Chemical tolerance (temporary exposure during cleaning)
  • H2O2 (2000 ppm, non-condensing)
  • Alcohol-based cleaning agents (for example ethanol and IPA)
  • Acetone
  • Acetic acid
Pressure
Compensated 500 ... 1100 hPa
Operating < 1.5 bar
Table 3. Mechanical Specifications
Property Description/Value
Weight, probe 58 g (2.05 oz)
Connector type M12 5-pin male
IP rating, probe body IP65
Materials
Probe housing material PBT plastic
Filter PTFE
Connector Nickel plated brass
Dimensions
Probe diameter 25 mm (0.98 in)
Probe length 130 mm (5.12 in)
Table 4. Inputs and Outputs
Property Description/Value
Digital output Over RS-485:
  • Modbus
  • Vaisala Industrial Protocol
Analog output
  • 0 ... 5/10 V (scalable), min load 10 kΩ
  • 0/4 ... 20 mA (scalable), max load 500 Ω
Operating voltage
With digital output in use 12 ... 30 VDC
With voltage output in use 12 ... 30 VDC
With current output in use 20 ... 30 VDC
Power consumption
Typical (continuous operation) 0.4 W
Maximum 0.5 W
When connected to Indigo 200 transmitter
Analog output 3 voltage (V) or current (mA) outputs:
  • 0 … 10 VDC / 0 … 5 VDC / 0 … 1 VDC / 1 … 5 VDC (min load 1kΩ)
  • 0 … 20 mA / 4 … 20 mA (max load 500 Ω)
Relays 2 configurable relays
Power supply input Nominal 24 V, range:
  • 15 ... 40 VDC
  • 20 ... 28 VAC
Power consumption Max. 3.5 W (transmitter + probe total max. consumption)