HT instruments HT7052 - Manual (Page 30)

HT7052
EN - 28
6.8 WITHSTANDING VOLTAGE TEST
6.8.1 Setting of parameters
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
Fig. 43: Initial screen withstanding test Fig. 44: Final screen withstanding test
3. Press again the SELECT key to enter in the setup parameters section. The screen of
Fig. 45 is shown by the meter
Fig. 45: Setting parameters
4. Use the arrow keys  or  for the selection of parameters. The herewith Table 9
shows the meaning of the measurement parameters
5. Set the values by using the arrow keys  or . Press SELECT key to select possible
sub-parameters and repeat the settings
6. Press ESC key to save the settings and back to the measurement screen or the
START/STOP key to exit from the settings menu and activate the test
Parameter Description
Ustart Start test voltage – Range 500V 10kV step 25V
Ustop Stop test voltage – Range 500V 10kV step 25V
Itrigg Set trigger leakage current – Range 0.001mA  5mA step 10A
Tstep Duration of test voltage per one step
Tend Duration of constant test voltage after reaching stop value
Table 9: Setting of internal parameters
CAUTION
 Tstep and Tend are independent timers. The maximum time for each timer
is 30 min 60 s. Tend begins after the completion of the ramp period. Ramp
period can be calculated from:
Ttot-ramp  Tstep * [(Ustop-Ustart) / 25V]
 If Tstep is set to 00min 00s, then the ramp voltage increases by
approximately 25 V every 2s