The thermal calibrator is a new generation of multi-functional testing instruments developed and produced to meet the requirements of gas density relay calibration of power supply enterprises and institutions. The emergence of thermal calibrator not only solves the defects of many old products, but also has multiple functions, strong performance and high degree of automation. It is a replacement product of thermal calibrator.

Features of thermal calibrator:

1. The thermal calibrator adopts 32-bit arm single-chip microcomputer and ti high-speed signal processing chip for detection and control, with high integration. Mechatronics design, high precision, good repeatability and high reliability.

2. Equipped with a monochrome LCD screen and a soft keyboard man-machine interface, the operation is simple, the interface is beautiful, and all parameters and states are clear at a glance.

3. Automatically complete pressure measurement and 20 ℃ value conversion, complete dynamic automatic compensation of pressure and temperature. It also displays pressure at measured ambient temperature, pressure at 20°C ambient temperature and ambient temperature. It solves the problem of difficult on-site calibration of thermal calibrators.

4. All testing processes are automatically completed by the instrument without manual intervention, avoiding the tedious manual air circuit adjustment operation.

5. Print the test results in Chinese reports, and analyze the test results intelligently.

6. It can store 50 test results at the same time, and has the function of power-off data protection. Previous test results can be queried and printed at any time.

7. There is no need for a constant temperature box during the calibration process, and the thermal calibrator and pressure gauge can be calibrated in any valid temperature range.

8. Equipped with various types of transition joints. Density relays for most types of switches are field proven without disassembly.

9. There is no gas waste in the calibration process, the detection cost is low, and there is no pollution to the environment.

10. It has the function of modifying the system clock online.

11. It has the function of online modification of system pressure, which can be modified on site.

12. The pilot test of core components adopts imported components with reliable performance.

13. One group of alarm signals and two groups of blocking signals can be tested at the same time.

14. This product is a portable tool, easy to use and reliable. It is a necessary equipment for thermal calibrators.

Safety precautions before the thermal calibrator test:

1. When checking the thermal calibrator on site, please disconnect the power supply and equipment connected to the density relay first to ensure safety and no damage to the calibrator.

2. When the ambient temperature of the calibration density relay is different from that of the calibrator, they are in the same position to the same degree to ensure the calibration accuracy.

3. The corresponding alarm signal line and blocking signal line on the terminal block should be disconnected from the terminal block to prevent the secondary circuit and the blocking signal line from forming a loop and affecting the calibration result.

4. The calibrated density relay should be placed upright, not lying flat, otherwise the calibration will be inaccurate.

5. After the test is completed, the trachea can be pulled out only after the residual gas in the pipeline is discharged.

6. Do not use the quick exhaust port during the test to avoid wasting the gas in the gas source.

7. When the thermal calibrator is used, vibration is strictly prohibited to avoid inaccurate calibration.

8. The calibration device is an electronic product and should be placed at a temperature of -20~70°C and a relative humidity of not more than 90%. Corrosive gases are strictly prohibited in the air.

9. During transportation, the calibrator should avoid violent vibration to prevent rain and snow from getting wet.