Table 6-2: Measurement Calibration Table - California Instruments MX30-1 User Manual

User Manual - Rev AJ
DC Current Full-scale:
6.3.3 Three Phase Mode
As indicated earlier, for three-phase power systems, repeat the preceding steps for the Phase B
and C outputs. The order in which the outputs for each phase are calibrated is not important.
Press the PHASE key to select each output to be calibrated. Monitor the output of the
respective phase by moving the HI input of the Digital Multimeter and th
needed. The LO input should remain connected to the common LO of the sense connector.
For the MX30-3Pi/MX45-3Pi operating in single-phase mode, it will be necessary to repeat the
current measurement calibration while the MX30-3Pi/MX45-3P
maintains specific current measurement calibration coefficients for this mode. The load values
shown in Table 6-1 for MX30-1 and MX45-1 should be used on phase A only. The voltage
measurement calibration does not have to be repeated in single-phase mode as the same
coefficients for phase A are used in either phase mode.
6.3.4 Meas urement Calibration Summary
The following Table is a summary of the preceding calibration steps. The value indicated by the
Ext ernal DVM is called V
I .
DC
TITLE
AC MODE
AC Vol t Full-scale
AC Cu rent Full-scale r
DC MODE
DC Vo t Zero l
(
P/N 70 03-400 only)
DC Volt + Full-scale
DC Current Zero
(
7003-400 only)
DC Current Full-scale
For a multi-phase power system, repeat Paragraph 6.3 for each phase. Move the external test
equipment to the phase that is being calibrated. Refer to Figure 6-2.
While viewing the calibration screen, press the PHASE key to select the respective phase.
MX Series
Enter the actual DC load current for the CURR ZERO
parameter in the MEASUREMENT CALIBRATION screen and
press the ENTER key. Save this value by pressing the SET
key.
Program the output to 0 volts on the 200 range. Apply load
resistor to the output. Refer to Table 6-1. Program 160 volts.
Enter the actual output current for the CURR FS parameter in
the MEASUREMENT C
by pressing the SET key (Series I models only).
or V . The cu rrent measured by the current shunt is called I
AC DC
PROGRAM/LOAD PARAMETERS
300 VAC Range, 240 VAC, 60 Hz, no load
150 VAC Range, 120 VAC, 60 Hz, full load
to 90% of max current range.
400 VDC Range, +2.0 VDC, no load
400 VDC Range, + 320 VDC, no load
200 VDC Range, 160 VDC, 80 ohm load
200 VDC Range, 160 VDC, full load to 90%
of max. current range.

Table 6-2: Measurement Calibration Table

California Instruments
ALIBRATION screen. Save this value
e current shunt as
i is in the single-phase mode as it
PARAMETER
VOLT FS
CURR FS
VOLT ZERO
VOLT FS
CURR ZERO
CURR FS
or
AC
ADJUST TO
V
AC
I
AC
V
DC
V
DC
I
DC
I
DC
163