HBM PW15AH, Инструкция по монтажу

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Electrical connection
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A02435_02_Y00_00 HBM: public
PW15AH
5.5 EMC protection
Electrical and magnetic fields often induce interference voltages in the
measuring circuit. To ensure reliable measurement, however, the transducer
must be able to transmit signal differences of less than 1 μV to the analysis
unit without interference.
Therefore:
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Use only shielded, low-capacitance measurement cables (HBM cables fulfill
both conditions).
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Do not route measurement cables parallel to power lines or control circuits.
If this is unavoidable, protect the measurement cable, e.g. using rigid steel
conduits
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Avoid stray fields from transformers, motors and contact switches
Planning the shielding design
Due to the numerous application options and differing local constraints, we can
only provide you with general information on correct connection. The shielding
design suitable for your application must be planned locally by an appropriate
specialist. HBM load cells with shielded, round cables are EMC-tested in
accordance with EC directives and bear the CE mark.
Please note:
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Connect the whole surface of the connection cable shield to the shielding
housing of the electronics.
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If using several load cells, connect the whole surface of the shields to the
junction box (grouping transducer signals, e.g. type VKK2 from HBM).
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From there, connect the whole surface of the measurement cable for the
electronics to the junction box and to the shielding housing of the
electronics.