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45
4.4.11
STOP
In any test mode, if you press down the “STOP” button on the instrument, it will
automatically end the test. When the test ends, no measurement result will be
output.
4.4.12
OFFSET
Before the test, due to the working environment and placement changes of test
cables, there may some residual base numbers even when the instrument is testing
without load. For customers who require accurate measurements, zero clearing
operation can be done in SYSTEM2 interface. Specific steps are as follows:
1.
Set the current test conditions in the SETUP interface.
2.
Select the OFFSET item in the SYSTEM2 interface and set it to ON.
3.
Press GET, the instrument will automatically start the high voltage test and use
the test value of the current as offset value, adjusting the display to zero.
4.
If the customer has not set the test time, the STOP key can be used to stop the
test.
4.5 Structure and Use of Interface Circuit
4.5.1 PLC and HANDLER interfaces
PLC interface is a control interface used to connect PLC controllers. Importing and
exporting signals on the interface meet the requirements of PLC standard interface.
Except INTERLOCK signal, other signals on HANDLER interface are directly
interconnected.
PLC signals schematic circuit is shown as follows in Figure 4.5.1. The output
interface on the rear panel of the reference instrument arranges from top to bottom.
