In recent years, China's electronic information industry has developed rapidly, and the demand for various electronic products continues to rise. As a key component of electronic products, the quality of circuit boards (PCBs) directly affects the overall performance and lifespan of the machine. In order to ensure product yield and the manufacturing accuracy of the circuit board, high-precision temperature measurement of the circuit board is required.

PCB temperature measurement: contact based precise positioning, non-contact fast scanning

At present, thermometers used for circuit boards in the market are mainly divided into two categories: contact and non-contact.

Contact thermometers usually use sensors such as thermocouples and thermistors to directly contact the surface of the object being measured. They have the characteristics of high accuracy and fast response time, and are suitable for detecting precision electronic components and key areas that are sensitive to temperature changes. The commonly used types of contact thermometers include thermocouple thermometers and thermistor thermometers.

Thermocouple thermometer: uses the thermoelectric effect to convert temperature signals into electrical signals. Its advantage in the field of circuit board temperature measurement lies in its ability to accurately measure the temperature of key locations such as solder joints and component surfaces. It is widely used for real-time monitoring and control of soldering processes such as SMT (surface mount technology) and DIP (dual in line packaging).

Thermistor thermometer: Its resistance value changes with temperature. In circuit board applications, it can measure temperature fluctuations in specific areas, such as the heating situation of components on the PCB during operation, which helps to detect potential overheating risks in a timely manner and ensure stable operation of the circuit board.

Non contact thermometers use infrared, laser and other methods to achieve non-destructive testing, which is not affected by the material and surface condition of the measured object, and is easy and fast to operate. Common types of non-contact thermometers include infrared thermometers and laser thermometers.

Infrared thermometer: It measures the temperature value by receiving the infrared radiation heat from the surface of an object without contact. For temperature measurement of circuit boards, it can quickly scan the entire PCB surface, monitor the temperature distribution in different areas in real time, and facilitate the identification of hotspots and potential fault hazards.

Laser thermometer: uses a laser beam to irradiate the surface of the object being measured, and determines the temperature value based on the change in reflected light intensity. In the field of circuit board temperature measurement, it can accurately measure the temperature inside the components and is suitable for monitoring and controlling high-temperature components.

Handheld temperature measuring tool: Huashengchang DT-610B series thermocouple thermometer

With the increasing miniaturization and integration of electronic components, engineers have put forward higher requirements for the speed and accuracy of temperature measurement tools.

In this context, the DT-610B/612/613 thermocouple thermometer series launched by Huashengchang complies with the international IEC584 temperature/voltage standard. With its professional performance and flexible configuration, it is becoming a cost-effective solution for engineers to address the challenges of electronic temperature measurement.

This series of thermometers can be widely used in the field of electronic temperature measurement, covering single channel (DT-610B) and dual channel (DT-612/613) K-type thermocouple temperature measurement.

Its core advantages lie in a measurement accuracy of up to 0.15% and a resolution of 0.1 ℃, fast sampling, and the ability to accurately capture the slightest temperature changes in circuit motherboards, small electronic components, and even experimental environments. The DT-610B/612 has a wide range, covering -50~1300 ℃, while the DT-613 extends to -200~1372 ℃ and supports multi range and ° C/° F/° K unit free conversion, meeting diverse scene requirements. The DT-612/613 with dual channel design can not only synchronously measure the temperature of two points, but also calculate and display the temperature difference (T1-T2) in real time, which is particularly suitable for situations that require comparative analysis.

Functional design reflects thoughtful consideration for engineers everywhere. HOLD freezes the current reading, while MAX automatically records the peak temperature, making it easy to quickly record critical data. The deviation compensation setting function of DT-613 can effectively eliminate errors in actual measurements and improve the accuracy of temperature readings.

Humanized details make the operation effortless. The instrument is only palm sized, lightweight and portable, making it easy to fit into a tool kit. The ultra large high-definition backlit LCD screen ensures clear and visible readings even in strong sunlight or low light environments. It can be operated with one hand, and with the support cover, it frees up both hands for desktop measurement and reading. Automatic shutdown and low battery warning extend battery life, energy-saving and practical.

Adaptability is another major highlight. DT-610B/612/613 supports multiple original K/J type temperature probes for selection. Users can flexibly choose the most suitable probe based on the specific object being measured (such as electronic components of different shapes or PCB solder joints). Whether it is temperature monitoring of circuit board components, testing of electronic components, or precision temperature measurement in laboratories, this series of thermometers can become an indispensable temperature measurement tool on engineers' workbenches due to their accuracy, efficiency, and reliability.

In the face of increasingly sophisticated and complex electronic manufacturing and testing requirements, precise temperature measurement has become a key link in ensuring the performance and reliability of circuit boards. As a cost-effective solution to address the challenges of electronic temperature measurement, the DT-610B/612/613 series is undoubtedly an ideal temperature measurement tool for engineers to optimize production processes, improve product yield, and ensure stable operation of circuit boards. It contributes precise temperature management capabilities to the high-quality development of the electronic information industry.