Table 15 SI Traceable Calibration
Property
Description/Value
Uncertainty of relative humidity calibration (
k
=
2)
±0.5 %RH (0 ... 40 %RH)
±0.8 %RH (40 ... 95 %RH)
Uncertainty of temperature calibration (
k
= 2)
±0.1 °C (±0.18 °F) at +23 °C (+73.4 °F)
Table 16 Operating Environment
Property
Description/Value
Operating temperature range for probe body
-40 ... +80 °C (-40 ... +176 °F)
Operating temperature range for probe head
-70 ... +180 °C (-94 ... +356 °F)
Operating environment
Suitable for outdoor use
IP rating
IP66
Electromagnetic compatibility
EN61326-1, Electrical equipment for
measurement, control and laboratory use - EMC
requirements - Industrial environment
Table 17 Inputs and Outputs
Property
Description/Value
Operating voltage
18 ... 30 VDC
Current consumption
10 mA typical
500 mA max.
Digital output
RS-485, non-isolated
Default serial settings
19200 bps N 8 2
Protocols
Modbus RTU
Output Parameters
Relative humidity, temperature, dew point temperature, wet-bulb temperature, absolute humidity,
mixing ratio, water concentration, water mass fraction, water vapor pressure, enthalpy
Table 18 Mechanical Specifications
Property
Description/Value
Connector
M12/5
Weight
310 g (10.9 oz)
Chapter 7 – Technical Data
33
Summary of Contents for HUMICAP HMP4
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