73
Relative humidity: t90 < 6 sec for a 60 %RH step at constant T
Barometric pressure: t90 < 44 sec
CO
2
concentration: t90 < 2 min
Resolution:
Temperature including dew point temperature: 0.1 °C
Relative humidity: 0.1 %RH
Barometric pressure: 1 hPa
CO
2
concentration: 1 ppm
Recommended calibration interval:
1 year
AWP-C
___________________________________________
Measured values:
CO
2
concentration of air
Range:
0 ppm to 5000 ppm (range 0 ppm to 10000 ppm as option)
Accuracy:
•
50 + 0.03 * measured value [ppm CO
2
at 23 °C and 1013 hPa]
•
temperature dependency in range -20 to 45 °C is typ. ± (1 +
measured value / 1000) [ppm CO
2
/°C]
Response time (at air flow ~1 m/s):
t90 < 2 min
Resolution:
1 ppm
Recommended calibration interval:
5 years
AWP-TRP
___________________________________________
Measured values:
Temperature and relative humidity from a probe, which is part of
shipment. Barometric pressure from internal sensor. Other
humidity quantities are calculated from the measured
temperature and humidity.