- Can make quantitative measurement for vacuum degree of all models vacuum switch arc-chutes.
- Need not disassemble the vacuum switch during the field test.
- High precision.
- With LCD, easy to operate.
- Can save, print and review the test results.
- The device with RS232 communication interface, connect with the PC can download the vacuum degree-ion current curve, can estimate the life.
- Light in weight, easy to carry.
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