4 Features and Functions
214 Keysight 34970A/34972A User’s Guide
TO PREVENT ELECTRICAL SHOCK
To prevent electrical shock, use only wire that is rated for the highest
voltage to any channel. Before removing a module cover, turn off all power
to external devices connected to the module.
CAUTION WITH MULTIPLE SIGNALS
To avoid the possibility of multiple signal sources becoming connected
together, we recommend when multiplexing two or more sources they
should be connected on separate modules or on separate banks of the
same module.
CAUTION WITH HAZARDOUS VOLTAGES
When any channel is connected to a hazardous voltage source, all
channels in the module should be treated as hazardous and all channel
wiring in the module should be rated for the maximum voltage applied.
Thermocouples attached to any other channel on the module should have
insulation rated for the maximum voltage, or have additional insulation
added rated for the maximum voltage and should be isolated from
conductive parts using a thermal compound or tape rated for the
maximum voltage applied. Do not mount, move, or remove any
thermocouples when the device under test is connected to a supply
source.
ENVIRONMENTAL HEALTH AND SAFETY
When any channel is connected to a hazardous voltage source, the
instrument and the device under test should be supervised, following local
EHS practices to restrict access.
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