1
I
、
Safety rules and precautions
1. Please connect all test cables before starting up, such as printer cables;
2. Before measuring, please check whether the tube type is suitable for the vacuum tube
to be tested for accurate measurement.
3. When starting up, shutting down and measuring, do not touch the high voltage line
and magnetron current line to prevent electric shock.
4. During the use of the instrument, if abnormal noise is found from the coil, the short
circuit or poor contact of the test line should be considered, or the air is very humid, or
the surface of the vacuum circuit breaker is covered with dust.
5. Please do not use gasoline, banana water and other chemical agents to wipe the
machine, but a soft and dry cloth.
6. Please confirm whether the local power grid voltage matches the power supply
voltage of the machine.
AC 220±10% 50/60HZ
7. Please be careful not to use the machine under thunderstorm conditions.
8. Please do not damage the cables that come with the machine to ensure safe use.
9. When the instrument fails, non-professional and technical personnel of the company
are strictly prohibited from opening the instrument for maintenance.
10. It is strictly forbidden to disconnect the high voltage end directly or indirectly to the
ground.
II
、
Instrument introduction
The vacuum tester is an appraisal device for the vacuum of the vacuum interrupter. It
uses a single-chip computer as the main control unit, and the testing process is fully
automated. In principle, this instrument has changed the method of calibration for similar
products at home and abroad by current peak value, and uses ion charge for calibration.
In this way, the accuracy of the physical principle is higher, and the interference of the
pulse power
