Heating Element Resistance Tester

Foshan Davinci Technology Co., Ltd. is one of the most reliable manufacturers and suppliers of heating element resistance tester in China, also supports customized service. Please feel free to wholesale cheap heating element resistance tester in stock here from our factory. For price consultation, contact us.

Heating Element Resistance Tester

This heating element resistance tester is a high-precision, microprocessor-controlled device capable of measuring resistances from 1μΩ to 3MΩ with a maximum display of 30,000 units. The maximum test speed of 60 times per second, maintaining 0.05% accuracy even at 15 times per second, ensures swift and precise results for various applications.

The resistance tester is an indispensable precision testing device in the manufacturing process of electric heating tubes (heating elements), specifically designed for quickly and accurately measuring the DC resistance value of heating elements. It serves not only as an inspection tool at the end of production but also as a critical quality control point throughout the entire manufacturing process.

There is also a withstand voltage tester

Our heating element resistance tester is versatile, suitable for testing products equipped with heating elements and resistance components.

Why is resistance testing crucial for heating elements?
Resistance is the most critical electrical parameter of a heating element, directly affecting:
Power accuracy: According to the formula Power (P) = Voltage² (U²) / Resistance (R), even small deviations in resistance can lead to significant fluctuations in power.
Product performance: Resistance determines heating efficiency and operating temperature, influencing heating speed and service life.
Safety: Abnormal resistance may indicate internal short circuits, open circuits, poor insulation, or material defects.
Consistency: The consistency of resistance in mass production directly reflects the stability of the manufacturing process.

Resistance tester for heating plate-----Calculation method for the upper and lower limits of resistance.
For example:
the power of heating plate: 700W The power supply voltage is 220V
the Chinese standard upper limit is + 5%: 700+700×0.05=735W
Lower limit setting: 220×220÷735≈65.850Ω
The lower limit of the Chinese standard is - 10%: 700-700×0.1=630W
Upper limit setting: 220×220÷630≈76.825Ω
Note: If the standard voltage is 220-240V, take the intermediate value of 230V for calculation, all power can be calculated according to the above method!

Technical indicators and performance of the Heating Element Resistance Tester characteristics

1. Display:

A： display the resistance value in five digits, and only four digits are displayed when the first digit is greater than 4.

B： The percentage is displayed in four digits plus a sign, and the range is ±0.01%-±9999%.

2. measuring range:

HG2511:10uΩ~20.00KΩ

HG2512:1uΩ~2.0000MΩ;

HG2512B:IuΩ~20.000KΩ

Display: Oversized range display:nNnnN

3. Test speed: slow (6s / s), fast (10s).

4. Gear selection: automatic or manual.

5. Power: AC50/60Hz220V±5%.

6. Operating environment: temperature: 0℃ ~40℃, RH 80%.

7. Remote control interface: optional.

8. Size: 270mm*110mm*300mm(W*H*D).

9. Weight: About 4 kg.

10. Remote control sorting output: super (LOW), qualified (PASS), super (HIGH), is are low-level effective.

Introduction of the remote control interface signal of the Heating Element Resistance Tester

All the functions of the panel can be saved, so that the next time it is turned on, it will be in the state set last time, to simplify the operation. The method is to set the function state first and then set the sorting data. The instrument only saves the sorting settings after setting the sorting data, and saves the function state at the same time. Every time the instrument is turned on, it will read the function status and the sorting data set last time.

When the Heating Element Resistance Tester function is set to single test mode, the range will be determined and locked according to the set data, and the sorting switch will be turned on. The remote control signal is only valid when the remote control interface board is installed and the trigger mode is single measurement. At this time, a test can be started through the start button on the panel, or it can be started through the remote control start signal.

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