Shortening The Cable; Cable Extension; Parallel Connection; Emc Protection - HBM PW27 Série Notice De Montage

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2.3 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.

2.4 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.

2.5 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.

2.6 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
S Avoid stray fields from transformers, motors and contact switches
To ensure the best EMC protection, the load cell, together with the connection
cable and the subsequent electronics, should be placed in a shielded housing.
Exception:
Load cells with shielded, round cables are EMC-tested in accordance with EC
directives and identified by CE certification. But you must make sure that the
connection cable shield is connected to the shielded housing of the
electronics.
HBM
Platform Scales PW27...
A3010−1.0 en/de/fr