With the gradual improvement of voltage levels in domestic substations, the usage of SF ₆ high-voltage circuit breakers in the power sector is currently growing at a rate of about 15% per year. In the fields of high voltage, ultra-high voltage, and extra high voltage switches, SF ₆ gas has almost become the only insulation and arc extinguishing medium. However, SF ₆ high-voltage switches are mostly installed indoors, and the air flow is relatively slow. Once SF ₆ gas leaks, it is easy to cause local oxygen deficiency, resulting in suffocation of workers due to oxygen deficiency, which poses a great safety hazard to their lives. Due to the decrease in insulation level, it also greatly reduces the arc extinguishing effect of high-voltage circuit breakers, causing damage to the circuit breaker body. Therefore, once SF ₆ gas leakage is discovered, corresponding measures must be taken to accurately locate the leakage point, repair the leakage point, and promptly eliminate the safety hazards of high-voltage circuit breakers.

Technical features:

1. Can qualitatively and quantitatively detect leaks in SF₆ electrical equipment.

2. Can accurately locate the leakage fault point of SF₆ gas electrical equipment.

3. Display multiple parameters such as SF₆ concentration value, temperature and humidity value, battery indication, time, and diaphragm pump status on the same screen.

4. Adopting non dispersive infrared (NDIR) technology, the world's top brand sensors are imported from Germany with original packaging

5. Fast testing speed, stable data can be achieved in 10 seconds, with good data repeatability.

6. Equipped with temperature and pressure compensation, it can perfectly compensate for gas concentration under different temperature and pressure environments.

7. SF₆ gas has a single response and does not respond to any other gas, so there will be no false alarms.

8. The non gas contact measurement characteristics can ensure that sensor poisoning will not occur at any concentration.

9. The sensor constant temperature chamber ensures that the sensor does not experience temperature drift at any ambient temperature.

10. Adhering to the European design concept of simplicity and low consumption, after software and hardware optimization, it has built-in lithium battery for ultra long standby.

11. During on-site inspection work, operators can wear it with them for climbing work.

12. Improved the previous model's color screen, which was not clear under sunlight, making it more suitable for on-site personnel to use.

13. Sound and light segmented alarm ensures that on-site operators can detect leakage points without the need to view data

Technical indicators:

1. Measurement principle: Non dispersive infrared, dual wavelength principle

2. Detection range: 0-1500ppm

3. Detection resolution: 0.1PPmv

4. Detection range: 0-1500PPmv

5. Detection accuracy: ± 2% FS (0-1000ppm)

6. Repetitive error: ≤± 1%

7. Ultimate sensitivity: 0.1PPmv