Handheld K-Type Armored Thermocouple and Digital Thermometer

ZYLAB Handheld K-Type Armored Thermocouple and Digital Thermometer

Introduction:

The ZYLAB Handheld K-Type Armored Thermocouple is a high-precision temperature sensing instrument designed for accurate furnace temperature calibration and measurement. It is widely used in high-temperature tube furnaces, muffle furnaces, and laboratory sintering systems.
This thermocouple adopts a composite armored structure with reinforced protection tubes and advanced surface modification treatment, providing excellent durability and long service life even under harsh conditions.

When paired with a ZYLAB digital thermometer, this handheld thermocouple allows real-time monitoring and precise verification of the actual temperature inside the furnace chamber — ensuring the accuracy of the temperature displayed by the main control system.

Key Features :

• Wide Measuring Range: 0–1300°C continuous measurement; ideal for long-term operation between 0–1200°C.

• High Accuracy: Enables precise comparison between handheld readings and furnace display temperatures.

• Reinforced Protection Tube: Wear-resistant, oxidation-resistant, and anti-sulfidation design for extended thermocouple life.

• Customizable Design: Insertion depth and sheath diameter can be tailored to specific furnace types and applications.

• Reliable Construction: The composite armored tube structure ensures stability and prevents temperature lag during measurement.

Applications：

• Furnace temperature calibration and verification

• High-temperature sintering process monitoring

• Laboratory and industrial furnace testing

• Metallurgical and materials research

• Thermal process development in R&D laboratories

Example：

1. Insert alumina tube plugs at both ends of the furnace tube.

2. Insert the K-type armored thermocouple probe through the alumina plug’s center hole into the middle of the furnace chamber (the area with the highest sintering temperature).

3. Connect the thermocouple to the handheld digital thermometer.

4. On the furnace’s monitoring interface, input the sintering temperature curve.

   • Example: Set the target temperature to 400°C, heat for 40 minutes, and hold for 60 minutes.

   • During the hold stage, record the temperature from the handheld thermometer when the reading stabilizes.

   • Example result:

     • Handheld thermometer: 395°C

     • Furnace display: 400°C

     • Temperature deviation: 5°C

   • The same accuracy is achieved for 500°C and 600°C, confirming stable measurement reliability.