83-517-000 Rev.
A
26
2. Connect the unit to an AC source as described in Section 3.7.
3. Connect a DVM with appropriate cables for the rated voltage to the output terminals.
4. Press the front panel AC power switch to the
ON
position.
Constant-Voltage Check
3.8.3
1. Turn on the output by pressing the
OUT
pushbutton so the
OUT
LED illuminates.
2. Observe the power supply
VOLTAGE
meter and rotate the
VOLTAGE
encoder. Ensure that the Output
voltage varies while the
VOLTAGE
encoder is rotated. The minimum control range is from zero to the
maximum rated Output (voltage/current) for the power supply model.
3. Compare the DVM reading with the front panel
VOLTAGE
meter reading to verify the accuracy of the
VOLTAGE meter
. Ensure that the front panel
VOLT
LED is illuminated.
4. Press the front panel AC power switch to the OFF position.
Constant-Current Check
3.8.4
1. Ensure that the front panel AC power switch is at the
OFF
position and the DVM connected across the
output terminals measures zero Output voltage.
2. Connect a DC shunt across the power supply output terminals. Ensure that the shunt and the wire current
ratings are higher than the power supply Output current rating. Connect a DVM across the shunt.
3. Press the front panel AC power switch to the
ON
position,
4. Turn on the output by pressing the
OUT
button so the
OUT
LED illuminates.
5. Observe the power supply
CURRENT
meter and rotate the
CURRENT
encoder. Ensure that the Output
current varies while the
CURRENT
encoder is rotated. The minimum control range is from zero to the
maximum rated Output current for the power supply model.
6. Compare the DVM reading with the front panel
CURRENT
meter reading to verify the accuracy of the
CURRENT
meter. Ensure that the front panel
CURRENT
LED is illuminated.
7. Press the front panel AC power switch to the
OFF
position.
8. Remove the shunt from across the power supply output terminals.
OVP Check
3.8.5
Refer to Section 5.3 for explanation of the
OVP
function prior to performing the procedure below.
1. Turn the front panel AC power switch to the
ON
position and turn on the output by pressing the
OUT
button.
2. Using the
VOLTAGE
encoder, adjust the Output voltage to approximately 10% of the unit Output voltage
rating.
3. Momentarily press the
OVP/UVL
button so that the
CURRENT
meter displays
“
OUP
”. The
VOLTAGE
meter
will display the last
OVP
setting.
4. Rotate the
VOLTAGE
encoder CCW to adjust the OVP setting to 50% of the unit Output voltage rating.
5. Wait a few seconds until the
VOLTAGE
meter returns to display the Output voltage.
6. Adjust the Output voltage toward its maximum and check that the Output voltage cannot be increased more
than the
OVP
setting.
7. Adjust the
OVP
limit to its maximum value by repeating Step 3 and rotating the
VOLTAGE
encoder CW.
UVL C
h
eck
3.8.6
Refer to Section 5.4 for explanation of the
UVL
function prior to performing the procedure below.
1. Press the
OVP/UVL
button TWICE so that the
CURRENT
meter displays
“
UUL
”. The
VOLTAGE
meter will
display the last setting of the UVL level.
2. Rotate the
VOLTAGE
encoder to adjust the
UVL
level to approximately 10% of the unit Output voltage
rating.
NOTE
The Output current
PREV
iew setting must be greater than zero
for the power supply to generate an Output voltage.
NOTE
The Output voltage
PREV
iew setting must be greater than zero
for the power supply to generate an Output current.
