SZK200 vacuum degree tester is a vacuum interrupter vacuum degree identification device. It adopts ion charge sampling technology, and has the characteristics of high and low pressure tube type testing, and the measurement curve of almost all vacuum interrupters in China and abroad.
This manual introduces the SZK200 vacuum degree tester, a high‑precision device for measuring vacuum in arc‑extinguishing chambers. It explains the principle based on ion‑charge sampling, the built‑in measurement curves for most domestic and foreign chambers, and the protective input circuit.
The document covers safety precautions, panel layout, wiring, detailed operating procedures, technical parameters, related standards, and a list of accessories. It also includes appendices with curve tables for various chamber types. This manual is written in Chinese.
| Voltage level | 6 kV‑35 kV |
|---|---|
| Measurement range | 10⁻⁵ – 10⁻¹ Pa |
| Measurement error | ≤10 % (10⁻⁴ – 10⁻¹ Pa) |
| Resolution | 10⁻⁵ Pa |
| Operating temperature | -20 °C – 50 °C |
| Air humidity | < 85 % RH |
| Input power | AC 220 V ± 10 % 50/60 Hz |
| Dimensions | 350 × 320 × 225 mm |
It can measure vacuum from 10⁻⁵ to 10⁻¹ Pa.
After connecting the wiring, turn the power switch to ON, wait for the “P” indicator, pre‑heat for 5 minutes, select the pipe type, then press the Measure key to begin automatic testing.
It uses a two‑sample high‑voltage method to subtract the leakage current before calculating the vacuum value.