User Manual - Rev AJ California Instruments
6.4.1 Output Cal 150 V AC Range (Series I only)
To calibrate AC output, set the power source to the AC mode, low voltage range. Select the
OUTPUT CAL entry from the MENU 3 screen. Refer to section 4.2.14 for relevant LCD screen.
For Series II MX units, proceed to section 6.4.2 as there is only one calibration range.
150 VAC Range DC Zero:
[Applies to MX Series I only] Press the PROGRAM key and
select the 150 Range with the shuttle. Program the output to
0.0 volts. Go to the Output Calibration, press the PHASE key to
select the phase to be calibrated and select the VOLT ZERO
parameter. Close the Output Relay by pressing the OUTPUT
ON/OFF key. Monitor the DC output voltage with the external
DVM. With shuttle control adjust the output voltage for 0.0 ±
0.005 VDC.
Save this value by pressing the SET key.
150 VAC Range Full-scale:
[Applies to MX Series I only] Press the PROGRAM key and
program 120.0 volts and 60 Hz. Once the output settings are
made, turn on the ALC mode and allow the output on all phases
to settle. Next, proceed to the output calibration screen. Select
the VOLT FS parameter and enter the set voltage in the full-
scale calibration window followed by the ENTER key. A value
between 0.9 and 1.1 will appear in the window.
Save this value
by pressing the SET key
.
150 VAC Range HI F
he P OGRAM key and
d 400 Hz. Go the OUTPUT
CAL screen and select the V HI FREQ parameter. Adjust the
output with the shuttle for an output of 120.0 ± 0.05 volts.
Repeat the 60 Hz and 400 Hz adjustments until the output is
within ±0.05 volts of the programmed value.
Save this value by
pressing the SET key.
6.4.2 Output Cal 300 V AC Range
req:
[Applies to MX Series I only] Press t
program the output to 120.0 volts an
R
To calibrate AC output, set the power source to the AC mode, high voltage range. For MX units
with the –HV optional range, use the 300V range for all calibrations. Select the OUTPUT CAL
entry from the MENU 3 screen. Refer to section 4.2.14 for relevant LCD screen.
300 VAC Range DC Zero: Program the output to the 300 VAC Range by pressing and
selecting the 300 Range with the shuttle. Program the output to
0.0 volts and 60 Hz. Go to the OUTPUT CAL screen, select the
VOLT ZERO parameter and adjust the output to 0.0 ± 0.005
VDC.
Save this value by pressing the SET key (Series I
models) or the ENTER key (Series II models).
300 VAC Range High Freq DC Zero: Required for Series II models with –HF option
only.Program the output to the 300 VAC Range by pressing and
selecting the 300 Range with the shuttle. Program the output to
0.0 volts and
820 Hz. Go to the OUTPUT CAL screen, select
the VOLT ZERO parameter and adjust the output to 0.0 ± 0.005
VDC.
Save this value by pressing the SET key (Series I
models) or the ENTER key (Series II models).
MX Series 165
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