Technical Data

Measurement Performance

Relative Humidity

Sensor

HUMICAP R2 Composite

Measurement range

0 ... 100 %RH

Accuracy at +23 °C (+73.4 °F) 1)

±0.8 %RH (0 ... 90 %RH)

T63 response time

15 s

Temperature

Sensor

Pt100 RTD Class F0.1 IEC 60751

Measurement range

-70 ... +180 °C (-94 ... +356 °F)

Accuracy at +23 °C (+73.4 °F) 1)

±0.1 °C (±0.18 °F)

1)

Defined against calibration reference

0.0

0.5

1.0

1.5

2.0

2.5

3.0

Temperature [°C]

3.5

4.0

90

...

100

%

RH

0 ... 90 %RH

HMP4 Humidity Measurement Accuracy as a Function of Temperature (Including

Non-Linearity and Repeatability)

0

0.1

0.2

0.3

0.4

Temperature [°C]

0.5

HMP4 Temperature Measurement Accuracy over Full Range (Including Non-

Linearity and Repeatability)

SI Traceable Calibration

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)

Operating Environment

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

Complies with EMC standard

EN61326-1, Electrical equipment for

measurement, control and laboratory

use - EMC requirements - Industrial

environment

Operational pressure

< 100 bar

Inputs and Outputs

Operating voltage

15 ... 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

Mechanical Specifications

Probe fitting

M22x1.5 and NPT1/2” fittings included

Connector

M12/5

Weight

530 g (18.7 oz)

Materials

Probe

AISI316

Probe body

AISI316

Cable jacket

FEP

136 [5.35]

Probe cable

2000 [78.74]

M12/5

mm

[in]

Probe Body Dimensions

183 [7.20]

120 [4.72]

Fitting body

M22x1.5 or NPT1/2”

41 [1.61]

32 mm 27 mm

mm

[in]

HMP4 Probe Head Dimensions