GEN7iB
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INPUT CARDS
INPUT CARDS
12
HBM KAB2139 cables are designed to meet this setup:
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Fig. 12.2 Three wire shielded cable setup
MoreKAB2139detailscanbefoundintheGN310B/GN311Bdatasheetspecications.
● For high frequency disturbances where high bandwidth measurement is not
required,themeasurementbandwidthcanbereducedbyusingthelowpasslter
of the acquisition card.
● If unshielded cables are used, keep them as close together as possible, i.e. posi-
tion them next to each other (to keep the loop small).
● Make sure that measurement cables that are used for measuring high dynamic
or distorting signals are not closely positioned to measurement cables used for
measuring small sensitive signals.
● Keep all measurement cables well separated from cables connected to high
switching loads or motor cables.
● Separate measurement equipment and cables from potentially interfering equip-
ment like frequency inverters or wireless equipment.
General cabling remark: Only use properly rated cables to measure the signal. Both the
voltage and current rating should be matched to the signal for measurements.
This instrument must be properly grounded.
When using this card, HBM advise using the standard GEN series protective ground
connections to ensure that the entire unit is grounded.
Please see section „Connecting power“ on page 61 for further details.
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