How to read the value of the E-type thermocouple scale

What is an E-type thermocouple indexing table?

Why should I use an E-type thermocouple indexing table?

What is the basic structure of an E-type thermocouple indexing table?

How to connect an E-type thermocouple correctly?

What are the precautions for reading an E-type thermocouple indexing table?

How to measure temperature using an E-type thermocouple indexing table?

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An E-type thermocouple indexing table is a device used to measure temperature. It consists of two different metal materials and measures temperature through the thermoelectric potential difference generated by two junctions.

The E-type thermocouple indexing table has a wide temperature range (-200 degrees to 900 degrees) and good linear response characteristics, and is widely used for temperature measurement in industrial and scientific fields.

The basic structure of an E-type thermocouple indexing table includes an E-type thermocouple wire, an insulating sheath, and a connector. The E-type thermocouple wire consists of a nickel-chromium alloy (positive electrode) and a conventional nickel-copper wire (negative electrode).

When connecting an E-type thermocouple, the positive electrode should be in contact with the object being measured and the negative electrode should be connected to the cold end. The cold end refers to the connection head of the E-type thermocouple, which is usually a copper screw.

When reading the value of the E-type thermocouple scale, make sure that the reading point corresponds to the temperature on the scale. At the same time, be careful to avoid heating the connection head to avoid affecting the accuracy of the measurement.

When measuring temperature through the E-type thermocouple scale, you need to connect the positive and negative electrodes of the thermocouple to the thermometer or data acquisition device, and then read the corresponding temperature value on the scale.