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Digital Temperature Calibrator Accuracy Table for TEGAM 940 Series Thermocouple Temperature Calibrators

Veröffentlicht November 04, 2019 von Advanced Energy Editor

See the full-size chart above for maximum uncertainties with Advanced Energy's TEGAM thermocouple calibrators

Have you ever tried to determine what the accuracy of a thermocouple temperature calibrator is in degrees? Accuracy specifications are typically given as a percent of a reading ± a small Voltage; not in degrees. To help TEGAM users, we developed this table below to convert the 940 Series Thermocouple Calibrators’ specifications into degrees. We used the maximum error for each 100°C increment of the thermocouple’s range so that you can easily see what the accuracy is IN degrees, within the temperature range that is important for your application. These tables are based on k=2 uncertainty so you can be confident that the 940 Series thermocouple temperature calibrators will meet or exceed these accuracies. Whether you are measuring sub-zero or 2000°C, you can thus find what the maximum uncertainty (accuracy) is in the region you are validating or calibrating.

Sometimes when you develop a data table for one purpose, you find that it can be even more useful for another purpose. This is what happened when we developed these 100°C accuracy tables. One of our engineers looked at the tables and said, “This is great.” His observation was that the table could also help users to select the proper thermocouple type to use for an application’s temperature range. The table shows you the accuracy over the total range of all the thermocouple types that the temperature calibrator can read/simulate.

Using this table, you can see the accuracy and the thermocouple range and select the best thermocouple type to cover the total range you need, and with the best accuracy in the most critical range of your system. You still should consider atmospheric compatibility of the thermocouple types, but this table gives you the temperature and accuracy at a glance. A good example is that if your critical temperature is around 1000°C and you want to use base metal thermocouples, Types K, J, and N will cover the range, but the calibrator accuracy is higher for Types J and N at 1000°C. Type J has an iron leg and is not good in an Oxygen environment at high temperatures so your selection would be Type N for the best accuracy.

Please see the TEGAM table below to help you with our temperature calibration product selection and applications. For questions and inquiries, please Contact us here by phone, form or email.

View our 940A thermocouple temperature calibrator for more information or to purchase.
 
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