6 Keysight DAQ970A/DAQ973A Service Guide
WARNING
AC POWER CORD
Removal of the AC power cord is the disconnect method to remove power
from the instrument. Be sure to allow for adequate access to the power cord
to permit disconnection from AC power. Use only the Keysight specified
power cord for the country of use or one with equivalent ratings.
WARNING
SELF-TEST
Before measuring any hazardous voltage or current, run the *TST? query
from the remote interface, and read the result to verify that the instrument is
performing properly. The *TST? query is a self-test that returns +0 if the
instrument passes and +1 if the instrument fails. You can also perform this
query from the front panel by pressing [Utility] > Self Test > Quick Test. If
this self-test fails, make sure that the instrument is repaired and passes the
self-test before continuing.
WARNING
IN CASE OF DAMAGE
Instruments that appear damaged or defective should be made inoperative
and secured against unintended operation until they can be repaired by
qualified service personnel.
CAUTION
MEASUREMENT CONSIDERATIONS
This is a sensitive measurement apparatus by design and may have some
performance loss when exposed to ambient continuous electromagnetic
phenomenon. Consider using shielded or twisted cables, common mode
chokes, ferrite clamps, and damping resistors before the input to the
DAQ970A/DAQ973A.
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