Electrical connection
7.3
EMC protection
Electrical and magnetic fields can often induce interference voltages in the
measuring circuit. Pay attention to the following points to avoid this:
S Use shielded, low-capacitance measurement cables only (HBM cables fulfill
both conditions).
S Do not route the measurement cable parallel to power lines and control
circuits. If this is not possible, protect the measurement cable with metal
tubing.
S Avoid stray fields from transformers, motors and contact switches.
S Do not ground transducers, amplifiers and indicators more than once.
S Connect all the devices in the measuring chain to the same protective earth
conductor.
S Always connect the cable shield extensively on the amplifier side and on the
transducer side, to create the best possible Faraday cage.
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A04036_01_YI0_03 HBM: public
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