Connecting In Parallel Of Several Load Cells - HBM RTN 0.05 Mounting Instructions

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Electrical and magnetic fields often are the cause for the introduction of
disturbing voltages into the measuring circuit.
Therefore:
• Use shielded low-capacitance cable only (HBM cables meet these
requirements).
• Do not lay the measuring cables in parallel to power cables, especially
high-tension and control lines. If this is not possible, use steel conduits, for
example, to protect and shield the measuring cables.
• Avoid the stray fields resulting from transformers, motors and contactors.

2.1 Connecting in parallel of several Load cells

Load cells are electrically connected in parallel by connecting the same color
wire ends of the connection cable.
WARNING
The overload of an individual load cell cannot be detected on the output
signal. The cable extension to the follow- -on electronics should be
carried out in six wire technology.
Junction box (e.g. "VKK..." or "VKEX" from HBM)
Fig. 8.2:
Connecting in parallel of several Load cells
HBM
Excitation (+)
(black)
Sense (+)
Excitation (--)
(blue)
Sense (--)
(red) Signal (+)
(white) Signal (--)
(green / yellow) Shield
Cable extension
RTN
A1153--1.2 de/en/fr