The SF6 gas density relay calibrator is an important component used to monitor changes in SF6 gas density within the SF6 switch body during operation. Due to the infrequent action of the SF6 gas density relay calibrator in field operations, it often becomes inflexible and exhibits poor contact after a period of time. Additionally, the temperature compensation performance of the density relay may deteriorate. Sudden changes in ambient temperature can frequently lead to the misoperation of the SF6 density relay calibrator. Therefore, the DL/T596-1996 Preventive Test Code for Power Equipment stipulates that each user of SF6 switches must regularly calibrate the SF6 gas density relay calibrator.
The SF6 density relay calibrator is developed in accordance with the DL/T259-2012: Calibration Specification for SF6 Density Relay Calibrator, issued by the National Energy Administration.
The instrument features a 7.0-inch color LCD touchscreen for human-computer interaction, making it more convenient to operate. It is equipped with a built-in high-capacity rechargeable lithium battery pack, providing an ultra-long standby time. The instrument also includes a standard USB interface, through which historical data can be exported to a USB flash drive.
In addition to calibrating SF6 density relays, the instrument can also calibrate pressure gauges and density gauges. It can automatically detect abnormal conditions during measurement. In case of pipeline leakage, air leakage, or insufficient inlet and outlet air pressure, the instrument will automatically stop operation and display a warning.