User Manual - Rev AV AMETEK Programmable Power
MX Series 168
6.3.1 Measurement Cal - AC
To calibrate AC measurements, set the power source to the AC mode. Select the
MEASUREMENT CAL entry from the MENU 3 screen. Refer to section 4.2.13 for relevant LCD
screen.
Note: For the following calibration steps put the external Digital Multimeter into the AC
mode.
AC Volt Full-scale: Program the output to the 300 VAC range. Close the output
relay. Program the output to 240 VAC and 60 Hz. Go to the
MEASUREMENT CALIBRATION screen. Enter the actual AC
output voltage for the VOLT FS parameter and press the
ENTER key. Save this value by pressing the SET key (Series
I models only).
AC Current Full-scale: Apply a load to the output. Refer to Table 6-1. Program the
output to 120 VAC on the 150 VAC range and 60 Hz. (If a 150
VAC range is not available, select the 300 VAC range and
program the same 120 VAC output.)
Observe the actual output current and enter this value for the
CURR FS parameter. Press the ENTER key. Save this value
by pressing the SET key (Series I models only).
6.3.2 Measurement Cal - DC
To calibrate DC measurements, set the power source to the DC mode. Select the
MEASUREMENT CAL entry from the MENU 3 screen. Refer to section 4.2.13 for relevant LCD
screen.
Note: For the following calibration steps put the external Digital Multimeter into the DC
mode.
DC Volt Zero: [Applies to MX Series I only] Go to the PROGRAM 2 screen and
program the DC mode. Go to the PROGRAM screen and select
the 400 V range. Set the output to +2.0 volts. Go to the
MEASUREMENT CALIBRATION screen and enter the value
displayed on the external meter for the VOLT ZERO parameter.
Save this value by pressing the SET key.
DC Volt +Full-scale: Program the output to +320 volts. Go to the MEASUREMENT
CALIBRATION screen. Enter the actual DC output voltage
displayed on the external multimeter for the VOLT FS parameter
and press the ENTER key. Save this value by pressing the
SET key (Series I).
DC Current Zero: [Applies to MX Series I only] Select the 200 Volt DC range and
program 0 volts. Apply a 80-Ohm, 350-watt rated resistive load
to the output. This resistor will represent approximately a 2-amp
load. Program the output to 160 volts. (If a 200 Volt DC range is
not available, select the 400 V DC range and program the same
160 V output.)
If an 80 Ohm load is not available, select a load and voltage
setting that produces the same 2.0 A current.
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