Rotronic HygroMet4

The HygroMet4 is suitable for use wherever high humidity prevails for short or long periods. The HygroMet4 is equipped with an automatic sensor heater.

Description

The HygroMet4 is suitable for use wherever high humidity prevails for short or long periods. In such environments condensation could occur on conventional probes, thereby delivering incorrect values. This is particularly the case in meteorology, in cheese cellars, tunnels and caves.

Heating Function
The HygroMet4 is equipped with an automatic sensor heater. It heats the sensor above ambient temperature by 0.1…10 °C depending on the settings. Heating of the sensor prevents the formation of condensation.

Specifications

Probe type Meteorological probe
Operating range -40…85 °C / 0…100 %rh
Accuracy at 23 ±5 °C Heated: ±1.5 %rh
Power supply / Power consumption 15…24 VDC / 5…24 VDC (only 0…1 V)
With heater: <55 mA @ VDD = 5 VDC / <30 mA @ VDD = 24 VDC
Without heater: <35 mA @ VDD = 5 VDC / <20 mA @ VDD = 24 VDC
Long-term stability <1 %rh / year
Heating mode Permanent heating / Interval / Depending on current measured value
Heating period 1…255 min.
Heating element SMD Thermo
Humidity sensor SMD Thermo
Temperature sensor PT100 1/3 DIN Class B
Response time t 63 <25 sec.
Allowed wind speed 20 m/s, with filter
Communication interfaces RS-485
IP protection rating IP65

Documentation

Datasheet (PDF)

Go to Top