Three functions-AC hipot testing, DC hipot testing and insulation resistance testing. The TOS9200 can perform AC hipot tests and insulation resistance tests, while the TOS9201 can also conduct DC withstanding tests. Once connected to a device being tested, the TOS9201 executes an AC hipot test, DC hipot test, and insulation resistnace testing in succession in one process.AC hipot testing at 5 kV and 100 mA.
Equipped with a high-efficiency switching power supply in its highvoltage power block, a PWM-based switching amplifier and a 500 VA high-voltage transformer, the TOS9200/TOS9201 realizes a maximum output of 5 kV/100 mA (continuous output for 30 minutes), or 2.5 times the output of Kikusui’s former models. At a test voltage of 500 V or more and an upper current of 100 mA, or greater the tester instantaneously satisfies the requirements of a short-circuit current of 200 mA or more which is required by the IEC standard *. In addition, the tester ensures a load effects of 30% or less and the generation of a consistent 50 Hz/60 Hz test voltage free from the affect of the supply voltage. These features eliminate the need to readjust the output voltage once the test voltage is preset.
*Continuous outputs are impossible because the output is cut off if an overcurrent is detected.DC hipot testing at 6 kV and a maximum output of 50 W
The TOS9201 permits DC hipot testing at up to 6 kV *. The tester is equipped with a stable, low-ripple DC/DC converter with a load factor of 1% or less.
*Maximum output of 50 W for up to 1 minute.

• Rise-time control function
• Fall-time control function
• Offset cancel function
• Measured-value hold function
• Output voltage monitoring function
• Memory function
• Program function
• Interlock Function
• DC Discharge Function
• Includes: AC Power cable, High-voltage test lead wire TL01-TOS (1.5m), Interlock jumper, High-Voltage Danger seal, Fuse, Operation Manual (Operation Manual for Tester, Operation for GPIB/RS-232C Interface)