K Series Thermocouple

The Garantta K Series Thermocouple is a nut-type temperature sensor specifically developed for industrial temperature measurement. It is constructed by welding one end of K-type thermocouple wire (KX nickel-chromium nickel-silicon) into a temperature measurement point, which is then placed in a nickel-plated copper sleeve to form a sturdy probe. The other end extends as a lead wire of customizable length, ensuring flexible installation in different equipment and environments.

This sensor is mainly used to measure the temperature of heated metal solids, such as engine components, heating furnace inner walls, and mechanical parts. It supports long-term stable operation in temperature ranges of 0-250℃ (for stainless steel braided wire models) and 0-200℃ (for silicone wire models), adapting to most industrial working conditions.

Proper installation and usage are crucial to ensure the performance and service life of the K Series Thermocouple. Follow these practical guidelines for optimal results:

1.Installation Position: Install the sensor in an area where it can fully contact the measured object, avoiding direct exposure to open flames or areas with excessive airflow. For pipe temperature measurement, the probe should be inserted into the pipe at least 8-10 times the diameter of the protective tube to ensure accurate temperature collection.

2.Thread Installation: Use the M6 thread to fix the sensor firmly, ensuring no air gaps between the nut and the equipment surface. This prevents hot or cold air convection from affecting measurement accuracy.

3.Wire Handling: Avoid pulling or bending the lead wire excessively, especially at the connection with the probe. When routing the wire, keep it away from high-power motors, inverters, and high-voltage cables to prevent electromagnetic interference.

4.Temperature Limits: Do not exceed the rated temperature range of the sensor. For stainless steel braided wire models, the maximum operating temperature is 250℃; for silicone wire models, it is 200℃. Exceeding the limit may cause wire damage or measurement inaccuracies.

5.Regular Inspection: Periodically check the probe surface for dirt, corrosion, or damage. Clean the probe with a dry cloth if necessary, and replace it promptly if the welding point is damaged or the wire is broken.

1. The new K type thermocouple should have a uniform and straight thermoelectric electrode diameter, with no cracks, burrs, or interlayers on the surface; Precious metal thermocouples should not have fragile thermoelectric defects, and there should be no serious color spots or blackening after cleaning.

2. The welding quality of the K-type thermocouple measurement end can affect the reliability of temperature measurement. It is required that the measurement end be firmly welded, which have a metallic luster, and a smooth surface, without contamination, deterioration, slag inclusion, and cracks. The size of the welding point should be as small as possible, and the diameter of the welding point is usually twice the diameter of the thermoelectric electrode.

3. The inspection of the appearance quality of k thermocouple thermal electrodes is generally carried out by visual inspection or observation with the help of a low magnification lens. When checking the diameter of the even wire, a measuring tool with an accuracy of no less than 0.01mm should be used in two vertical directions on the same section.

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