Vaisala HMP3 - Table 28 Inputs and Outputs; Table 29 Mechanical Specifications

Table 28 Inputs and outputs
Property Description/value
Operating voltage 15 … 30 VDC
Current consumption 5 mA typical, 400 mA max.
Digital output RS-485, non-isolated
Default serial settings 19200 bps N 8 2
Protocol Modbus RTU
Output parameters
Relative humidity, temperature, dew point temperature, dew point temperature dierence, wet-
bulb temperature, absolute humidity, mixing ratio, water concentration, water vapor pressure,
water vapor saturation pressure, enthalpy
Table 29 Mechanical specifications
Property Description/value
Connector M12 5-pin A-coded male
Weight 68 g (2.40 oz)
Probe cable length 2 m (6.6 ft)
Materials
Probe AISI316
Probe body PBT
Cable overmolds FEP
HMP3, HMP4, HMP5, HMP7, HMP8, HMP9, MMP8, TMP1 User Guide M212022EN-D
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