HBM PW27, Инструкция по монтажу, Страница: 15 / 56

Electrical connection
PW27
A3010-2.0 HBM: public
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4.3 Shortening the cable
As the load cell connection uses a six‐wire configuration,
you can shorten the 6‐wire load cell cable without this
changing the load cell calibration.
4.4 Cable extension
Use shielded, low‐capacitance measurement cables only
for extension. Ensure that connection is perfect, with a
low contact resistance.
The cable of a six‐wire load cell can be extended with a
cable of the same type.
4.5 Parallel connection
Only single point load cells with an aligned output
(nominal (rated) sensitivity and output resistance) are
suitable for parallel connection. This option is not
available with type PW27 single point load cells.
4.6 EMC protection
Electrical and magnetic fields often induce interference
voltages in the measuring circuit. Therefore:
S
Use shielded, low‐capacitance measurement cables
only (HBM cables fulfill both conditions)
S
Do not route the measurement cables parallel to
power lines and control circuits. If this is not possible,
protect the measurement cable, in rigid steel conduits,
for example