VOLTECH AT3600 USER MANUAL MEASURE MODE
5.2 FRONT-PANEL MEASURE MODE ERROR MESSAGES
The measurement conditions displayed on the front panel are the actual values of the
voltage/current and frequency sensed at the AT3600’s nodes. If voltage or current and
frequency test conditions have been specified it may not be possible for the AT to
maintain these conditions. For example, if the AC impedance of the winding under test is
only 0.1Ω at the specified frequency and you have specified a 5V test signal, then the AT
would have to supply 5V / 0.1Ω = 50 Amps!
You will then see a warning similar to this:
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Measuring LS
FINISH
AUTO V
NEW SET UP
NEW MEASURE
Warning : Signal not trimmed
At : 3.1462V, 100Hz
36.193nF
The AT will continue to measure accurately, but you can also allow the tester to
automatically choose a test voltage or current based on the programmed frequency by
selecting AUTO V.
For the leakage inductance test only, AUTO A may be displayed.
Some tests energize more than one winding (e.g. TRL), and in this case, the display will
show voltage from the first energized node unless the error is only on the second, when
that voltage will be displayed.
For over-range errors you may also see an error message similar to this:
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PROGRAM
MEASURE
EXECUTE
Measuring C
FINISH
NEW SET UP
NEW MEASURE
Nodes : 1 2
Overload : adjust V, l or f
0.0000pF
In this case, choose AUTO conditions where possible in a NEW SET UP and consult
Chapter 7, Tests and Test Conditions. For low voltage / low power tests only, the tester
will continue to try making measurements.
FRONT PANEL OPERATION VPN 98 - 024 PAGE 6.5.5
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