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specified by safety agency personnel and is tied
to the test duration time. Most safety agencies
allow a much shorter duration test (usually 1 sec.
vs. 1 min.) if the voltage is increased by 20%, and
we recommend that the short test be used. The
HT-2800 is factory set for 1700 volts, a voltage
level used for the one second duration test for
many types of equipment. Consult the safety
agencies for the required voltage level for the
type of equipment being tested. If a different
voltage level is required, use this procedure to
set it.
1.
Defeat the
Ground Check
by turning the
rear panel switch Off.
2.
Adjust the Test Duration control to
approximately the middle of its travel.
3.
Connect the HT-2800 to a correctly rated
source of supply and turn the power
switch to the I or ON position. Push the
RESET
button. The yellow
TEST
indicator
should light, indicating that the Tester is
ready to test.
4.
Make sure there are no test leads
connected to the Tester. Push the
TEST
button.
5.
After the
TEST
button is pressed, the
voltage will ramp and hold. Adjust the
high voltage control on the rear panel until
the desired voltage is reached.
6.
If tamperproof operation is desired, we
suggest placing a calibration-style label
over the voltage adjust hole.
7.
Check the position of the
Ground Check
switch, and reset the test time using the
procedure
Adjustment of the High Voltage
Test Time
.
Adjustment of the High Voltage
Test Duration
This procedure sets the amount of time the
Tester will conduct the high voltage test. The
test time is specified by the safety agencies and
is tied to the test voltage. Most safety agencies
allow a much shorter duration test (usually 1
second vs. 1 minute) if the voltage is increased
by 20%, and we recommend that the short test be
used. The HT-2800 is factory set for 2 seconds.
Consult the safety agencies for the test duration
for the type of equipment being tested. If a
different test duration is required, use this
procedure to set it.
1.
Defeat the
Ground Check
by turning the
rear panel switch Off.
2.
Connect the HT-2800 to a correctly rated
source of supply and turn the power
switch to the I or ON position. Push the
RESET
button. The yellow
TEST
indicator
should light, indicating that the HT-2800 is
ready to test.
3.
Make sure there are no test leads
connected to the Tester. Push the
TEST
button.
4.
After the voltage has ramped, the
Full
Voltage
LED will light. The test time is
measured from when the
Full Voltage
LED
lights to when the voltage begins to ramp
down. Time the test.
5.
After the test is complete, adjust the
Test
Time
control on the rear panel. If the time
desired is shorter, turn the Control
counterclockwise, and vice versa.
6.
Push the
RESET
Button, then the
TEST
Button and time the new test. Adjust the
Test Time
control until correct.
7.
Check the position of the
Ground Check
switch before conducting testing.
Setting the Ground Check Switch
This switch controls whether the
Ground Test is conducted between the chassis
and the power supply cord grounding pin of the
unit being tested. The safety agencies require
that this test be conducted on all equipment
using a three-wire power supply cord. For other
types of equipment, such as some portable lamps
and all double-insulated equipment, there are
only two wires in the power supply cord and the
ground continuity check is waived by the safety
agencies.
If the power supply cord of the
equipment being tested has only two pins, the
Ground Check
switch should be set to the Off
position. When the
Ground Check
switch is
turned Off, both the
Ground OK
and
Ground
Open
LED's on the front panel are lit as a
reminder to the operator that the ground
continuity test is not being conducted.
If the power supply cord of the
equipment being tested has three pins, the