User Manual AMETEK Programmable Power
RS Series 140
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 RS system can be performed from the front panel or over the bus. The RSGUI
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 RSGUI on line help
for information on using the RSGUI 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 RS Series. If the typical application in which the RS 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: Agilent 3458A 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 as
long as 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 RSGUI: Optional.
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