RGBW Module unexpected high sensor readings.

[reyem 0]

Hi all,

 

I configured my Fibaro RGBW Module to read 0-10v inputs on all inputs. So set parameter 14 to 0x8888. I have two strange behaviors:

1. without attached sensor, the voltage between GND and I1 is 10.5V. Why?
2. I attached a VH400 Moisture Sensor to I1. The sensor delivers 0-3v depending on moisture. However if I attach the sensor, I measure 3.8V between GND and I1. Touching the sensor increases  voltage to about 5.6V. If I measure the voltage of the sensor without Fibaro Module I get 0.1V ( expected ). If I touch it the voltage increases to about 1.8v ( expected )

 

The power supply delivers 12VDC to the module and the sensor...

 

Can somebody give me a hint on what I'm doing wrong? Is it not possible to use a 0-3V sensor with the RGBW Module? I'm also afraid of destroying my sensors...

 

Sensor: 

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Thank you!

 

Marco