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Hygro-thermal sensors
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meteocontrol compact hygro-thermal sensor
At a supply voltage of 24 V DC at the sensor, the load resistance (cable + input resistance data logger) should be between 600 and 700 Ohm to obtain the best measurement results.
The input resistance of the data logger is 40 Ohm.
The installation of an additional resistance (approx. 500 Ohm) improves the measurement accuracy of the sensor.
meteocontrol compact hygro-thermal sensor: Sensor connection
Description | |
|---|---|
| 1 | Data logger terminal, digital output / multi-input |
| 2 | Data logger terminal, Power Out |
| 3 | Hygro-thermal sensor |
| 4 | Load resistor |
Connection
Wire color | Use |
|---|---|
Yellow | Power supply for humidity sensor (24 V DC) |
Black | Power supply for temperature sensor (24 V DC) |
Green | Temperature signal (4 … 20 mA) |
Brown | Ambient air humidity signal (4 … 20 mA) |
Configuration data
Measurement | Input | Unit | Gradient | Offset |
|---|---|---|---|---|
Temperature | Analog 4 … 20 mA | °C | 6.25 | -55 |
Ambient air humidity | Analog 4 … 20 mA | % r. h. | 6.25 | -25 |