CHAPTER 6
INSTRUMENTATION CALIBRATION
Entire Contents Copyright 2004 by Adaptive Power Systems, Inc. (APSI) • All Rights Reserved • No reproduction without written authorization from APSI.
APS-3000P Series 6 - 14 OM-001-03000-00P-03.9
High-Power (P-HI) Mode Calibration
1. At the FREQUENCY Display, press the ﹀ button to select
(P HI).
2. At the OUTPUT Terminals, carefully connect a resistive load and connect a
certified, calibrated RMS power meter, of at least 0.2% accuracy, to Phase R (US
= A). After you calibrate Phase R, you will repeat this step for Phases S and T.
3. The size the load should be calculated based on the high-current parameter for
your particular APS unit, as shown in the following Calibration Table. Use 100
VAC for the voltage.
4. An example calculation is shown on page 6-2 in the Section Calculation Setup,
subsection How to Calculate the Size of the Load.
5. At the MULTIMETER Display, press the TEST button. The APS unit will
automatically perform a high-power output reading and will output
approximately 120 VAC.
6. The external RMS power meter will display the actual power output. The
CURRENT Display shows the calibration value (see Calibration Table, above).
7. Adjust the load or the output voltage until the RMS power meter displays the
value shown in the Calibration Table (above). Please note, the value for your unit
will depend on the model.
8. At the CURRENT Display, adjust the metered power using the ︿ or ﹀ buttons
until the metered values match.
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