Cable Extension And Cable Shortening - HBM C9C Montageanleitung

Electrical connection
to the amplifier system; the shield must be connected
extensively. With other connection techniques, a good
EMC shield must be provided in the stranded area,
where the shielding must also be extensively connected.
7.2

Cable extension and cable shortening

Various connection cable lengths are available for the
C9C so that cable extensions and cable shortening are
generally not necessary.
As the transducer has a four-wire configuration, the cable
is also used to compensate the temperature dependence
of the sensitivity. We therefore do not recommend
shortening the cable and extension cables should be
implemented in a six-wire configuration. Please follow the
operating manual for your amplifier system in this case.
All C9Cs ordered with fitted plugs have a six-wire
configuration from the plug. See the Specifications
section 9 on page 26 of this manual for the connector pin
assignment. Please remember that an extension cable
must have six wires. Such an extension will have no
influence on the measurement. If you have selected the
"Sub HD" (for QuantumX) option as the connector in
combination with the "TEDS" option, you must extend
with seven wires as in this case, a so-called "OneWire
TEDS" is fitted and this requires two additional wires.
With extension cables, ensure that connection is perfect
with a low contact resistance and continue to connect the
cable shield extensively. Note that the protection class of
your force transducer will decrease if the cable
connection is not tight and water can penetrate the cable.
Transducers can be irreparably damaged and fail in
these circumstances.
C9C 21
A3729-2.2 HBM: public