1.1 General introduction
The tester use the magnetic control discharging method to test the vacuum degree of arc extinguish chamber, it’s easy operation, high precision and high intelligent. 
 

1.2 Technique index
Test scope: various models of vacuum switching tube
Test method:it adopts the new type exciting winding to perform the un-demounting measuring of vacuum switching tube.
Test range: 10-5~10-1Pa
Measuring precision: 10-5~10-4Pa, 25%
10-4~10-3Pa, 20%
10-3~10-2Pa, 20%
10-2~10-1Pa, 15%
Size: 420×320×280mm3
Weight:15kg