13
Connecting Sensors to the VWnote
VW SENSOR
WITH BUILT-IN
TEMPERATURE
SENSOR
VW SENSOR
WITHOUT BUILT-
IN TEMPERATURE
SENSOR
For a VW sensor without built-in temperature sensor, only connect the
sensor to the red and the black crocodile clips.
You can connect only one Vibrating Wire sensor at a time to the
VWnote; this sensor can be with or without a built-in temperature
sensor.
All sensor connections to the VWnote are made via the Lemo plug
which is located under a cap on the top of the VWnote; see figure
below:
Consult the sensor user manual for the sensor connections.
If you are still unsure, please contact Soil Instruments.
Please ensure that the bare parts of the clips do not touch each other
and cause shorts among the four wires.
VWnote is only compatible with the 3K ohm thermistor
temperature sensors. It will not work with the RTD-based
temperature sensor in some of the VW sensors.
Only a qualified person trained in the use of VWnote and the
VW sensors may connect sensors.
CLIP COLOUR
SENSOR TERMINAL
Red
VW +
Black
VW -
Green (or Blue)
Tempe
White
Temperature -
WARNING
WARNING
Содержание RO-1 VW Note
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