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17
3.3.3
SIGNAL IN/OUT: Control signal input (female) / output (male)
Control uses series control and the input terminal is connected to the host or the output signal that is
switched through the controller. The output terminal is used to connect to the signal input terminal of
the next controller, to achieve control signal switch.
3.3.4
UNIT n INPUT/OUTPUT: Unit n input / output
The input is connected to the output high voltage and current sampling of the corresponding unit of
the host. The output is used to connect the input high voltage and current sampling of the
corresponding unit of the next controller to realize the switching of the test voltage and current. The
input / output terminals of the test voltage are actually connected inside the instrument and can be
used interchangeably. The same is true for the current terminal.
3.3.5
Power Input
Connect the mains power supply to 100~240AC, 47-60Hz.
3.4
Instrument Performance Overview
The ST9010/A can provide 8/4 parallel test withstand voltage units, and the test units are independent
of each other. The 8/4 unit means 8/4 times the safety test speed.
ST90101/A scan controller can extend 4 scan channels per test unit, and the ST9010/A can control
up to 4 units. Used to connect test products with test endpoints no larger than 16. By connecting the
matching test fixtures, the multi-parameter test can be completed once the product is placed.
The output of each test unit is the same: 5kVAC/10mA withstand voltage, 6kVDC/5mA withstand
voltage, 1kVDC/5mA insulation resistance test.
Note:
Each unit of test product must be strictly isolated. The reasons are as follows:
Because one point in the test low end of each unit structure is connected to the ground. Current is
collected between the low end of the test and ground. The current loop of the high voltage of
adjacent units can be achieved through the low end of the other units. The effect of this current on
the measurement is as follows:
1.
This current flows through the current sample, the current sample value of this path is counted.
2.
This current is the ground current, two loop ground current misjudgments occur when GFI is
turned on.
3.
This current is too large to cause SHORT protection of the high voltage source and current