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Before the completion of one measurement, the tester ignores other triggers. It can only be triggered
again after the measurement is finished, or press the
【
STOP
】
key to exit the current measurement,
and then trigger the measurement again.
Manual trigger: press the
【
START
】
key on the panel to start measuring.
External trigger: input a low level greater than 10mS through the external HANDLER interface
board.
Bus Trigger: Start the test by sending a trigger signal through the RS232C or GPIB interface.
The bus trigger mode can only be set by using bus commands. For details, please refer to Chapter 5.
4.2.1.2 After Fail
After Fail is test fail, which refers to the setup of handling measures after the test reports FAIL, it is
divided into continue, restart and stop test.
1.
When it is set to CONTINUE, when any of the STEPs determines that the DUT is defective, the
test will continue until all the STEPs are completed.
2.
When it is set to RESTART, when any of the STEPs determines that the DUT is defective, you
can directly press the
【
START
】
key to restart the test.
3.
When it is set to STOP, when any of the STEPs determines that the DUT is defective, you must
press the
【
STOP
】
key before pressing the [START] key to restart the test.
4.2.1.3 Hardware/Software Compensation
Due to the output impedance of the test signal source, the load effect that is the load change, the
output voltage changes accordingly, the compensation function is used.
AC withstand voltage ACV:
50V ~ 5KV (hardware compensation is always ON, software
compensation is ON by default and it can be set to OFF)
DC withstand voltage DCV:
50V ~ 499V (hardware compensation is ON by default and it can be
set to OFF; software compensation is ON by default and it can be
set to OFF)
DCV:
500V ~ 6KV (hardware compensation is always ON, software
compensation is ON by default and it can be set to OFF)
Insulation resistance IR:
50V
~
499V (hardware compensation is ON by default and it can be set
to OFF; software compensation is ON by default and it can be set to
OFF)
IR:
500V ~ 5KV (hardware compensation is always ON, software
compensation is ON by default and it can be set to OFF)
As shown in Figure 4-3: Vo / Vs = RL / (Rs + RL)
Hardware compensation: Vo<Vs due to load effect, using a hardware comparison circuit, Vo
can
be compensated to the same voltage as Vs in 0.1S.
Software compensation: Due to the slow speed of software compensation, it will not cause a
transient voltage shock on the DUT. Moreover, the general IR’s impedance (RL) is much larger
than the output impedance (Rs) of the tester, so Vo ≈ Vs.