Parallel Connection Of Several Weighing Modules; Connections Using The Four-Wire Technique; Cable Extensions - HBM C16M Serie Instrucciones De Montaje

C16M...
6.1 Parallel connection of several
weighing modules
Transducers can be wired in parallel by joining the trans­
ducer cable core ends of the same color. In this case
HBM program offers the junction boxes VKK... and for
use in Ex areas the junction box VKK...EX. The output
signal of these junction boxes is the an average of the
single output signals.
CAUTION
Overloading in a single load cell can no longer be
detected from the output signal.
6.2 Connections using the four‐wire
technique
With connections to amplifiers using the four‐wire tech­
nique the cores BU (blue) and GN (green) should be con­
nected together, as should BK (black) and GR (grey).
Please take in account that this causes deviations to the
sensitivity and the temperature coefficient of sensitivity
that this causes.
6.3

Cable extensions

Cable extensions must be screened and of low capaci­
tance. We recommend the use of HBM cables which sat­
isfy these requirements. With cable extensions it should
be ensured that a proper connection is provided with low
contact resistances and good insulation.
A1268-3.0 HBM: public
Connection
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