Calibration time of infrared thermometer and its self-calibration rules
1. Scale: The infrared thermometer self-calibration procedure is used for the calibration of infrared thermometers that measure the effect of the scale in (0℃～1600℃).
2. Purpose: To calibrate the temperature of the heating furnace, heat treatment furnace and other equipment used in the company's production process and the infrared thermometer required for the temperature control measurement of the workpiece product during the production process, to ensure that its results meet the requirements of measurement accuracy.
3. References: Commodity Skills Manual "Working Effect Full Radiation Thermometer Verification Regulations"
4. Overview: The infrared thermometer is a non-touch measuring instrument, which is simple to use and can quickly perform non-touch and non-destructive temperature measurement.
5. Calibration procedure
The basis for establishing calibration: According to the temperature measurement scale, put a metal material sample with a diameter area larger than the target diameter required by the infrared thermometer in the resistance furnace. The above is bundled with a certified S-type precious metal thermocouple, and the thermocouple is used as the reference temperature source. To ensure that the temperature of the temperature source is relatively stable, refer to the expansion uncertainty of the calibration temperature source should not exceed the table.
Calibration method: Calibrate the environmental conditions The ambient temperature (18 ~ 25) ℃ refers to the environmental humidity of the electrical measuring equipment operation should meet the requirements of its corresponding technical conditions.
Relative humidity: >85%, to prevent strong background radiation and alternating magnetic field.
Supporting facilities: The accuracy (converted into temperature) of the S-type thermocouple and its point test equipment for measuring the standard temperature source should be better than one-tenth of the maximum allowable error of the infrared measuring instrument.
Additional DC voltage is 520V insulation resistance meter, temperature source heating furnace calibration work frame (table) meter ruler.
When starting up, the digital display should be clear and complete, and the buttons should be normal.
6. Calibration result processing: The calibration data processing is carried out according to the working effect full radiation thermometer verification regulations. The calibration process is written in the infrared thermometer calibration record form, and the calibration report is filled out after the calibration.
7. The calibration time is usually not more than 1 year away from the calibration time.
