
IE-HGS-H5(6)4XX-05
28
Specific humidity
3
Accuracy:
±2g/kg at ambient temperature T < 35°C (95 °F)
Range:
0 to 550 g/kg
Mixing ratio
Accuracy:
±2g/kg at ambient temperature T < 35°C (95 °F)
Range:
0 to 995 g/kg
Specific enthalpy
Accuracy:
± 3kJ/kg at ambient temperature T < 25°C (77 °F)
Range:
0 to 995 kJ/kg
4
The values computed from ambient temperature and relative humidity including their
accuracy you can exactly determine by the program
Conversions
. It is free to download at
10.2.
Operating conditions
Operating temperature range:
electronics
H5421, H6421:
-30 to +80 °C (-22 to 176 °F)
electronics
H5424, H6420
:
-30 to +60 °C (-22 to 140 °F)
measuring end of stem
H6420:
-30 to +80 °C (-22 to +176 °F)
CO
2
probe
H5421, H6421
-40 to +60 °C (-40 to +140 °F)
RH+T probe
H6421:
-30 to +105 ºC (-22 to +221 ºF)
It is recommended to switch off the LCD display at ambient temperatures above 70°C (158
°F)
around electronics.
Operating humidity range:
H5421, H6421:
0 to 100 % RH (no condensation)
H5424, H6420:
5 to 95 % RH (no condensation)
Operating barometric pressure range
850 to 1100 hPa
Protection:
H5421
IP65 (electronics), IP65 (CO
2
probe)
H5424
IP30 (electronics)
H6420
IP30 (electronics), IP40 (measuring end of stem)
H6421
IP65 (electronics), IP65 (CO
2
probe), IP40 (RH+T probe)
Other environmental conditions (external influences) according to HD 60364-5-51:
normal
Recommended calibration interval:
H5421
5 years (CO
2
)
H5424
5 years (CO
2
)
H6420
5 years (CO
2
), 1 year (relative humidity), 2 years (temperature)
H6421
5 years (CO
2
), 1 year (relative humidity), 2 years (temperature)
Working position:
H5421, H6421
:
negligible
H5424:
with cable glands upwards
H6420:
with sensor cover downwards
3
This value depends on the atmospheric pressure. For computing is used constant value stored in device memory. Default
value preset by manufacturer is 1013hPa and can be changed by user’s software.
4
This maximum is reached under conditions about 70°C/100%RH or 80°C/70%RH
Содержание H5421
Страница 6: ...IE HGS H5 6 4XX 05 6 H5421 ...
Страница 7: ...IE HGS H5 6 4XX 05 7 H6421 ...
Страница 8: ...IE HGS H5 6 4XX 05 8 H5424 4 Typical application wiring connection of terminals ...