Routine Measurement Calibration; Figure 6-3: Current Measurement Calibration Setup (Rear View) - California Instruments MX30-1 User Manual

User Manual - Rev AJ

6.3 Routine Measurement Calibration

The MX Series controller measures voltage and current by digitizing both voltage and current
waveforms on each available output phase. This data is subsequently processed and use to
calculate all measurement parameters such as VRMS, IRMS, Power, VA, Frequency etc. To
calibrate all measurem ents, only the voltage and current measurement need to be calibrated
specifically. All other measurements are derived from these.
Connect the test equipment to the power source as shown in Figure 6-2. If the power system is
a multi-phase system with one controller, the DVM for calibrating the measurement voltage
should always be connected to the Remote Sense connector on the Master cabinet.
Note: The Fluke 8506A Digi
The 8506A must be set to the AC HI ACCUR mode for all AC measurements.
The shunt must be connected to the power source as shown in Figure 6-3. If the Current
Measurement can't be successfully performed, adjust the Current Measurement Pot on the
System Interface board. This adjustment is described in the Non-routine Calibration section of
this manual. If the DC current measurement displays more than 70 counts on the display,
perform the non-routine current monitor adjustment.
160
tal Multimeter must be used for the following calibration.

Figure 6-3: Current Measurement Calibration Setup (Rear view)

California Instruments
MX Series