LTMD-II sf6 density relay verification instrument is an intelligent SF6 density relay verification instrument.It also belongs to relay calibration testing.

The sf6 density relay tester uses a high-precision pressure sensor and a high-speed A/D converter, combined with a 32-bit high-performance microprocessor, can perform performance verification on various SF6 density relays, and can accurately measure the pressure at the current temperature when the signal is activated. It can automatically complete the conversion of any ambient temperature to the standard pressure at 20°C, and can print and store test data immediately for reference, and automatically identify faults during the test.

SF6 switch is a high-voltage electrical appliance widely used in power systems. The reliable operation of SF6 switch has become one of the most concerned issues of power supply departments. The SF6 gas density relay is an important component used to monitor the SF6 gas density change in the SF6 switch body during operation. Its performance directly affects the operational safety of the SF6 switch. SF6 gas density relays operating on-site do not operate frequently. After a period of time, they often exhibit inflexible actions and poor contact contact. Some of the density relays have poor temperature compensation performance. When the ambient temperature changes suddenly, it often leads to SF6 density. The relay malfunctions. Therefore, DL/T596-1996 “Preventive Test Regulations for Power Equipment” stipulates: Each SF6 switch user unit should periodically check the SF6 gas density relay. From the actual operating conditions, it is also very necessary to periodically verify the SF6 density relays and pressure gauges in the field operation.