I Description This instrument is special for testing vacuity of arc-extinguish chamber of a vacuum switch. This instrument is quantitative detection vacuity, not qualitative detection! So it can not only check whether vacuity is in normal range, but also judge the life of a vacuum switch. II Main features 1) Quantitatively detect vacuity in vacuum chamber of various kind of vacuum switch 2) No need dismantle switch at site 3) Higher test precision comparing to conventional "voltage-withstand method". 4) LCD display, simple and convenient operation 5) Test data can be saved, printed and recalled 6) With RS232 communication interface, can be connected to computer for downloading vacuity / ionic current curve and estimating switch life, etc. 7) Light weight, portable III Main technical data 1) Measuring range: 10-4~10-1Pa 2) Measuring precision: 10-4~10-3Pa: 25% 10-3~10-2Pa: 20% 10-2~10-1Pa: 15% 3) Dimension: 420 x 320 x 280mm 4) Weight: 12kg
