IBC SOLAR SolControl Pro, Manual

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5.4 Hygro-thermal sensors
compact hygro-thermal sensor
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 humidity signal (4… 20 mA)
Configuration data
Measurement Input Unit Gradient Offset
Temperature Analog 4… 20 mA °C 6.25 -55
Relative humidity Analog 4… 20 mA % r. h. 6.25 -25
§ The sensor outputs (power signal) must have a resistance of approx. 500 Ω for a
correct measurement. Since the data logger has an internal load resistance of 70 Ω,
we recommend you to install commonly available 430 Ω load resistors on the sensor
outputs.