Under the calibration of thermometers is a set of operations to confirm compliance of the devices with metrological requirements. In other words, this procedure, confirming the accuracy produced by the pyrometer measurements and the possibility of their further use.
Verification procedure is mandatory or not
If the device is used in the sphere of state regulation of ensuring the uniformity of measurements, calibration of the pyrometer is mandatory. Calibration of thermometers should always be performed by the manufacturer of instruments or metrological authority to verify the accuracy of the measurement. Because of the error (error) of measurement can have negative consequences. In other cases, all depends on the desires of the user. But in fact it is also beneficial to calibration. If you can’t trust the measurements, why use the device?
Especially if measuring devices are used in enterprises where accurate information about the temperature of technological processes plays an important role:
- housing;
- oil-Refining industry;
- steel
- Energy;
- Steel industry and other spheres.
Remote actions enable to safely conduct temperature monitoring of objects (items) and production environments, where contact with them is not permitted (high temperature) or impossible (remote areas). Therefore, most users prefer the calibration of the pyrometer, even if not required mandatory verification or calibration.
What operations should be undertaken
Methods of verification (calibration) of measuring devices involves carrying out the following operations:
- an External inspection apparatus;
- Sampling;
- In the initial check required finding (horizontal, vertical) angle field of view;
- Check the range of the measured temperature;
- Identification of their main error;
- definition of the threshold temperature.
register
Calibration of thermometers is possible, if available in the State register of measurement means SI. Therefore, test results (for type approval) are:
- Metrological characteristics of the device;
- is Determined by the calibration interval.
- Methods of calibration of thermometer.
Therefore, acquiring a pyrometer, it is necessary to check availability in the State register (if you are going to perform in the future calibration of your device). Typically, the seller is silent about it. Note, the calibration interval is measured from the time of the verification, and not from the date of purchase of the thermometer. Therefore, it is possible that you buy a new device, and then it turns out that fits the period of its next calibration, and this additional financial costs and time.
Where to perform the verification (calibration)
The transaction data can be held in our company, having the reference base and highly qualified personnel. Therefore, the calibration of the thermometers of any design will be executed at a high metrological level.
Additional error in the measurement
Note that additional error may arise even if the temperature measurement attorney (calibrated) thermometer. For example, if you use an infrared window for electrical diagnostics. Transmittance of infrared radiation through the infrared window is very large, but it is always below 100%. For example, at 0.15 µm, and 94% and 92% at 14µм.
Area of application of infrared Windows BALTECH TR-095W
- Cabinets high voltage
- Modular switching unit
- Electric equipment
- Converters
- Low-voltage installation
the Advantages of temperature measurement by the IR-window
- the high-voltage Cabinet is important equipment in power plants and substations. It retains the safety of the electrical system using the on/off cabling and control electrical loads.
- Harness the high-voltage Cabinet may become warm after some time of operation. It may cause fire if not controlled, heat zones.
- Early detection and elimination of wiring in the zone of overheating in the Cabinet of high voltage is very important for the safety of electrical systems and personnel.
- Zone of overheating in the closet, high voltage may be detected through the temperature control wiring with IR-window and using the infrared camera BALTECH TR.