User Manual – Rev BE AMETEK Programmable Power
MX Series 203
6. Calibration
The Routine Calibration should be performed every 12 months. Non-routine
Calibration is only required if a related assembly is replaced or if the periodic
calibration is unsuccessful. Calibration of the MX system can be performed from
the front panel or over the bus. The VIRTUAL PANELS program provides several
calibration screens for this routine calibration but not for non-periodic
calibration. This section covers calibration from the front panel. Refer to the
VIRTUAL PANELS on line help for information on using the VIRTUAL PANELS
program to perform routine calibration.
Full-scale output calibration is done using the internal measurement system. As
such, it is important to calibrate the AC and DC voltage measurements before
performing an AC and DC full-scale output calibration.
NOTE: Perform the Measurement calibration first.
The cardinal calibration points used during calibration are chosen to obtain
optimal performance at the typical operating points of the MX Series. If the
typical application in which the MX system is used is unusual, it may be better
to calibrate it at different operating points than the ones used in this manual.
Also, if the required load values for current calibration are not available, the
programmed voltage may be adjusted to obtain the approximate current
(typically close to maximum available current per phase).
6.1 Recommended Calibration Equipment
Digital Multimeter: Fluke 8506A or equivalent / better.
1 mOhm Current Shunt: Isotek Model RUG-Z-R001-0.1.
Load Bank: Various high power load resistors or a resistive load
bank will be needed. (E.g. Avtron ) Size of the load
bank depends on model and phase mode. A load is
required to perform the current measurement
calibration near full scale. Current measurement
calibration should be done on the lowest available
voltage range. The accuracy and value of the load
resistor is not critical if the current drawn is sufficient to
operate the AC Source in the upper current range (80-
100 %). Suggested values of load bank settings are
shown in Table 6-1.
PC with CI VIRTUAL PANELS: Optional. For MX30-3Pi or MX45-3Pi programmable
Impedance calibration only:
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