◇
18
the place where DUT is connected with low terminal.
7.
SCAN interface
Be used to connect ST9121 multi-channel tester. SBOX control program is needed
to be customized.
8.
Backup interface
1.
IEEE488 (GPIB) parallel communication interface. (Option)
2.
ST10203 control interface (Option): it includes all functions of HANDLER
interface. In addition, 24V/1A DC power supply is addeded to connect the small
power-driven circuit, such as indicator light.
9.
Protective earth terminal
Be used to connect instrument to ground.
10.
RS232C serial interface
Serial communication, realize the communication with computer.
11.
Power jack
Be used to input AC power; please use the attached power line with fuse. Change
the fuse according to input power.
12.
Ground break-over calibration
Ground break-over resistance is 1 ohm, use potentiometer to calibrate if there is
deviation.
13.
Mark
This mark describes the instrument’s SN.
14.
High voltage output interface (optional)
Stand-by high voltage output interface.
3.3 Description
ST9201
Provide 5kVAC/30mA withstanding voltage, 6kVDC/10mA withstanding
voltage and insulation resistance tester.
ST9201S Provide 5kVAC/30mA withstanding voltage, 6kVDC/10mA withstanding
voltage and insulation resistance with scanning test.
ST9201B Provide 5kVAC/20mA withstanding voltage, 6kVDC/5mA withstanding
voltage and insulation resistance test.
ST9201C Provide 5kVAC/20mA withstanding voltage test.
In high voltage modular, there is an AB power amplifier power which can assure
the programming of output voltage as well as the isolation of output voltage power
and line power. 40~600Hz high voltage transformer can rise voltage, and use high
voltage feedback loop to assure the accuracy of output voltage, then the actual
voltage adjustment rate is far smaller than that of transformer, which can be used
to the product whose VA is larger than the actual power.
In AC output, set the operation in 50 or 60Hz, not being limited by line voltage,