SF6 gas density relay is an important component used to monitor the changes in SF6 gas density in the SF6 switch body during operation, and its performance directly affects the safety of SF6 switch operation. The SF6 gas density relay operating on site often experiences inflexibility and poor contact of contacts after a period of time due to infrequent operation. Some density relays may also have poor temperature compensation performance, which can lead to misoperation of SF6 density relays when the ambient temperature suddenly changes.

KDJD-D density relay calibrator is an intelligent SF6 gas density relay calibrator. This calibrator uses high-precision pressure sensors and high-speed A/D converters, combined with a 32-bit high-performance microprocessor, to perform performance verification on various SF6 gas density relays. It can accurately measure the pressure value at the current temperature when the signal is activated, automatically convert the standard pressure at 20 ℃ for different environmental temperatures, and has printing, storage, and USB conversion functions. At the same time, it can automatically identify faults during the testing process. This product is easy to carry, easy to operate, has high testing accuracy, strong stability, and good reliability, reflecting the "intelligent" characteristics of the instrument.
 

1. High testing accuracy: The core components are imported, with high integration, high precision, and good repeatability
High reliability.
2. Highly intelligent: The verification process does not require a constant temperature chamber and can detect SF6 gas within different effective temperature ranges
Verify the density relay and pressure gauge. By using pressure and temperature dynamic compensation algorithms, automatic pressure measurement and conversion of 20 ℃ equivalent pressure values are completed, and the pressure at the current temperature and the equivalent pressure at 20 ℃ are displayed, solving the difficult problem of on-site calibration of SF6 gas density relays.
3. Powerful function: It can simultaneously test one set of alarm signals and two sets of locking signals, and has the functions of calibrating normal temperature pressure gauges and 20 degree pressure gauges.
4. Friendly human-machine interface: equipped with LCD screen and rotating mouse human-machine interface, easy to operate and user-friendly
Beautiful appearance, clear and concise parameters and status. The testing process is automatically completed by the instrument, without the need for manual intervention, avoiding tedious manual air circuit adjustment operations.
5. Complete supporting transition joints: This product is a portable instrument equipped with multiple types of transition joints. Most models of switch density relays can be verified on site without disassembly, making it a commonly used instrument for SF6 density relay calibration.
6. Low gas consumption: The calibration process consumes very little gas, does not waste SF6 gas, has low testing costs, and is pollution-free.
7. Support data storage: The instrument has a built-in memory that can instantly save test results and has power failure data storage function
Can query and print historical experimental data at any time.
8. Support report printing: Print test results in a report format and perform intelligent analysis on the test results.
9. Clock modification: It has the function of online modification of the system clock.
10. USB drive transfer: Supports USB drive transfer of test data, which can be read through a PC for easy and fast operation.
11. PC software has powerful functions: PC application software has powerful functions and is easy to operate, enabling data analysis, saving, printing, and generating complete test reports for centralized data management.

1. Measurement method: fully automatic testing
2. Working voltage: AC220V, 50Hz
3. Rated frequency: 50Hz
4. Measurement accuracy: 0.2 level
5. Pressure calibration range: 0-0.9MPa
Measurement range: 0-1.000Mpa
SF6 density relay: single alarm, single interlock, single alarm single interlock, single alarm double interlock
Room temperature gas pressure gauge: pressure point calibration between 0 and 1MPa
20 degree gas pressure gauge: pressure point calibration between 0 and 1MPa
6. Pressure display resolution: 0.001MPa
7. Environmental temperature display resolution: 0.1 ° C
8. Storage capacity: 50 sets
9. Environmental temperature measurement range: -20 ℃ to 80 ℃
10. Working humidity: £ 90% RH
11. Verification objects: single alarm, single lock, single alarm single lock, single alarm double lock
12. Display mode: 320 × 240 graphic dot matrix monochrome LCD screen
13. Operation method: Rotate the mouse (one click shuttle) input
14. Printer type: high-speed micro printer
15. Printing method: report style printing
16. Dimensions: Host 365 × 300 × 220 (mm3)
17. Attachment box 400 × 370 × 200 (mm3)
18. SF6 gas density display method: pressure under the tested environment, equivalent pressure at 20 ℃.
19. Instrument weight: 8kg