Vacuum Switch Vacuum Tester Manufacturer
Darui Electric recommends:
Vacuum Switch Vacuum Tester is mainly used for quantitative measurement of vacuum degree in various types of vacuum switch arc extinguishing chambers, It uses a single-chip computer as the main control unit, and the test process is fully automated. In principle, it changes the method of using current peak for calibration used by similar products at home and abroad, and instead uses ion charge for calibration, effectively suppressing the interference of pulse power supply during the test process, making the test more stable and reliable.
Vacuum Switch Vacuum Tester Test Principle
Pull the two contacts of the arc extinguishing chamber apart to a certain gap, apply pulsed high voltage, and cause collision ionization with residual gas molecules. The resulting ion current is approximately proportional to the residual gas density, i.e., the vacuum degree. For different vacuum tubes, under the same vacuum degree condition, the magnitude of the ion current also differs. After measuring the ion current, through the ion current-vacuum degree curve, the computer automatically completes the calculation of the vacuum degree and displays the vacuum degree value.
Instrument Features
1. Can quantitatively measure the vacuum degree in the arc extinguishing chamber of various types of vacuum switches;
2. No need to disassemble the vacuum switch during on-site measurement;
3. Test results are accurate and reliable;
4. LCD Chinese character display, making operation simpler and more convenient;
5. Can save, print, and view test data;
6. The instrument is equipped with an RS232 communication interface, which can be connected to a computer to achieve multiple functions such as downloading the vacuum degree-ion current curve and estimating lifespan;
7. The instrument is lightweight and easy to carry;
Technical Parameters
1. Vacuum measurement range: 9.999×10-1～1×10-5
2. Ion current measurement range: 9.999×10-1～1×10-7
3. Measurement error: ＜5%
4. Measurement resolution: 10-5pa
5. Allowable ambient temperature: -20℃～50℃
6. Air humidity: ≤80%RH
7. Power supply: AC, 220V, 50Hz±10%
8. Dimensions: 420×290×210 (mm)
9. High voltage output: pulse ≤30kV15kHz
10. Weight: 8kg
Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.
