ITech IT-M3400 Series User Manual page 33

1. Confirm that the power switch is in the OFF position and verify that there is
2. Remove the output terminals cover of the DC output.
3. Loosen the screws of the output terminals and connect the red and black
4. Thread the red and black test cables through the output terminals cover of
5. Connect the other end of the red and black cables to the DUT. The positive
Connecting the DUT (Remote Sensing)
When the DUT consumes large current or the wires are too long, there is a
voltage drop on the wires between DUT and output terminals of the power
system. To maximize measurement accuracy, the power system provides the
remote measurement terminals VS+ and VS- on the rear panel, which can be
used to measure the terminal voltage of the DUT.
When the power system is used for battery testing in actual applications, the
voltage drop of the wire will lead to voltage inconsistency of both ends and
inconsistency of the cutoff voltage of power system and the actual voltage of
battery, resulting in inaccurate measurement. The connection diagram and
steps of remote sensing are as follows, taking the pluggable output terminals as
an example.
no dangerous voltage on the connection terminals.
test cables to the output terminals, and connect the ground terminal
correctly. Re-tighten the screws.
When maximum current that one test cable can withstand fails to meet the
rated current, use multiple pieces of red and black test cables. For example,
the maximum current is 1,200A, then 4 pieces of 360A red and black cables
are required.
the power system and install the cover.
and negative poles must be properly connected and fastened when wiring.
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Inspection and Installation
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