1) The verification system fully meets the technical indicators of high temperature measurement standards. This verification system fully complies with the current national verification regulations or calibration specifications such as JJG351-1996 "Verification Regulations for Low Cost Metal Thermocouples for Work", JJG141-2013 "Verification Regulations for Precious Metal Thermocouples for Work", JJF1262-2010 "Calibration Specification for Armored Thermocouples", JJF1098-2003 "Calibration Specification for Thermocouple Thermal Resistance Automatic Testing System", etc.
2) This calibration system allows for accidental exit during calibration without losing calibration data. The calibration data can be stored for a long time and can be accessed and printed at any time. It can complete the calibration of various types of thermocouples at any temperature point and the same furnace mixed testing of K, N, E, and J type (same temperature point) thermocouples. At the same time, the constant temperature delay calibration function is added, and the delay time can be increased or decreased arbitrarily within 60 minutes;
3) The calibration functions of this system include: S-type first-class inspection S, R industrial type I and II grade thermocouples, and S-type second-class inspection K, N, E, J working grade I and II thermocouples;
4) This verification system has Baidu calculation function for S, R, and B type thermocouples.
5) Automatic temperature control, automatic calibration, and automatic calculation;
6) Temperature calibration points can be set according to requirements, up to a maximum of 8 temperature calibration points can be set;
7) The temperature at the verification point is randomly displayed in a curved manner;
8) Equipped with three cold end compensation methods (freezing point compensation, automatic compensation, and constant temperature compensation);
9) Parasitic potential of programmable scanning switch: ≤ 0.4μV；
10) Accuracy of the numerical table: 7 and a half digit indicator;
11) Resolution: Potential of 0.1 μ V;
12) During calibration, the deviation of furnace temperature from the calibration point shall not exceed ± 5 ℃. The fluctuation of furnace temperature during the calibration process of low-cost metal thermocouples shall be ≤ 0.2 ℃/min, and the fluctuation of furnace temperature during the calibration process of precious metal thermocouples shall be ≤ 0.1 ℃/min (a precious metal calibration furnace shall be configured). The temperature change inside the furnace from the beginning to the end of each calibration point shall not exceed 0.5 ℃;
13) Calibration temperature range (300-1100) ℃;
14) Verify the number of thermocouples: (1-8);
15) Verification time: Even (4 points) 100-120 minutes;
16) Printing project: Original record table, organized record table, Baidu point table and temperature error;
17) Power supply voltage AC 220V (50HZ), within 16A.
Including the metrology certificate of the National Defense Science and Technology Industry First Metrology Testing and Research Center, the technical indicators meet the requirements of current regulations/specifications.