HT7052
EN - 29
6.8.2 Perform the measurement
1. Switch on the instrument by pressing the
ON/OFF
key
2. Select with arrow keys
or
the item “WITHSTANDING VOLTAGE DC” on main
menu and confirm with
SELECT
key. The screen of Fig. 43 is shown by the meter
3. Connect the red part of the Test lead 1 or Test leads 2 (see § 4.2) to the
+OUTPUT
input and the black part of the Test leads 2 (see § 4.2) to the
–OUTPUT
input
4. Connect the tip of Test lead 1 or Test leads 2 (positive) and the black cable of Test
leads 2 (negative) to the object on test (see Fig. 46)
Fig. 46: Connection of instrument for withstanding test
5. Press
START/STOP
key to activate the measurement
6. Wait until the set timers run out or until breakdown occurs. The result of test is shown
at display (see Fig. 44) with meaning of items descript in Table 10
7. Wait for the object under test to discharge
8. For saving the result see § 7
Parameter at display
Description
2000V
Start test voltage
7000V
Stop test voltage
7221V
Applied test voltage
I=0.002mA
Measured leakage current
Tm:01min 00s
Timer information
Table 10: Meaning of parameters of withstanding test
CAUTION
Breakdown is detected when the measured current reaches or exceeds the
set current level Itrigg (see § 6.8.1)
The timer shows the time needed to complete each step during the
measurement and it shows the total measurement period after the
completion of the measurement
A high-voltage warning symbol appears on the display during the
measurement to warn the operator of a potentially dangerous test voltage
