Insulation Resistance Tester

The high-temperature insulation resistance tester(Infrared reflector furnace) is designed and developed in compliance with the standard "GB/T 10518-2006 Test Method for Resistance and Resistivity of Insulating Materials at High Temperature" and refers to the American ASTM standard. A number of safety designs have been made for high-temperature insulation resistance testers to ensure the safety of the test process under abnormal conditions such as over-voltage, over-current, over-temperature, etc.; the data storage mechanism ensures the safety of the test process when encountering computer abnormalities or instantaneous power outages. , the data can be saved in the controller without losing the test data, and the original test data can be restored after the equipment is restarted.

Components of high temperature insulation resistance tester

Features

1.  Multifunctional infrared reflection furnace, which can realize electrical testing in high temperature, vacuum and atmosphere environments;
2.  Use platinum material as the measurement wire to reduce signal attenuation and improve test accuracy;
3.  The equipment is equipped with a water cooling device, which has faster cooling speed and higher efficiency;
4.  It can realize measurement functions such as uniform temperature rise and step temperature rise;
5.  Imported temperature sensor and PID automatic temperature control make the temperature measurement more accurate;
6.  Near-infrared heating, the sample is heated more evenly, there is no induced current, and accurate measurement is achieved;
7.  10-inch imported touch screen design, integrated mechanical structure design, more stable and reliable;
8.  Using imported high-frequency test lines, it has stronger anti-interference ability and higher collection accuracy;
9.  99 alumina ceramic insulation, with platinum electrode clamp;
10.  Dexinmag's powerful control analysis software is compatible with the functional test platform system.

Measured parameters

Product Advantage

Eliminate the influence of network harmonics on acquisition accuracy

During the measurement of ultra-high resistance and weak signals, input bias current and leakage current will cause measurement errors. At the same time, a large number of high-frequency and high-power equipment such as frequency converters are used in the power grid, which will cause harmonic interference to the power grid. As a result, it affects the collection of weak signals. The anti-interference module launched by Dexinmag and the latest test analysis technology have achieved a measurement resolution of up to 1fA (10-15 A), thereby meeting the testing needs of many semiconductors, functional materials and nanometer devices.

Automatic averaging function to eliminate irregular input, stronger data processing and internal masking

Auto averaging is a function that detects changes in current and automatically averages them. There is no need to change settings while viewing the measurement results. By automatically eliminating large deviations caused by excessive response of charging current or unstable contact. The current input port uses a large-diameter triaxial connector, which is a 3-layer coaxial design that connects the inner shield to the GUARD (COM) line and the outer shield to the GROUND. Taking into account both anti-interference stability and safety during high-pressure inspection.

Use the method of waiting before measuring to allow the material to be heated more evenly

When the temperature reaches the set temperature, there will be a certain hysteresis in the uniform heating of the sample. Use the equipment temperature holding time and wait before measurement. It can make the material heated more evenly and the measurement more scientific and reasonable.

Heating method

At present, most domestic high-temperature heating methods are tubular furnaces or muffle furnaces. The main principle is to heat the furnace body with heating wires or silicon carbon rods. The heating and cooling processes are slow and inefficient. It is also impossible to achieve high-precision measurement of temperature, and there is also unevenness in the heating area. After years of research, Dexinmag Instruments has developed a paraboloid that can achieve high precision and high reflectivity, which is configured with a high-quality heating source to achieve high-speed heating. It has good temperature distribution during high-speed cooling.  It can realize wide uniform heating zone, high-speed heating and high-speed cooling, and use quartz tube to protect the heated sample without atmospheric pollution. Can be heated in high vacuum and high purity gas. The equipment can be composed of a uniform high-speed heating furnace, a temperature slope furnace, and a stage heating furnace.

It improves heating test capabilities.  Compared with resistance furnaces and other furnaces, the infrared reverberatory furnace saves the heating time, holding time and the time required for natural cooling to room temperature. The set temperature value can also be rewritten during the test. In every aspect, it saves experiment time and increases experiment speed.

Compared with high-frequency furnaces, there are no special installation conditions and requirements for heating samples. Like a resistance furnace, it is easy to install and has a cooling system that is safe and reliable. To improve the work efficiency of test personnel and realize a new temperature control operation!

High-speed heating and cooling methods
High-energy infrared lamps and gold-coated reflections allow high-speed heating to high temperatures. At the same time, the furnace body can be equipped with a water cooling system and a gas cooling device can be added to achieve rapid cooling.

Temperature control
Through the combination of infrared gold-plated focusing furnace and temperature controller, the temperature of the sample can be controlled (much better than ordinary heating methods). Additionally, the cooling rate and holding at any temperature provide high accuracy.

Heating and cooling in different environments
Heating/cooling can be used in vacuum, atmosphere environment, low temperature (high-purity inert gas, static or flowing), is simple to operate, and is made of quartz glass. Infrared light can be delivered to heating/cooling chambers.

Operational software

The software platform of the test system is developed using the labview system, which meets the various testing requirements of functional materials. It has strong stability and operational safety, and has the function of saving power-off data, and image data can also be saved and restored. Compatible with XP, win7, win10 and other systems.

1. Multilingual interface: supports Chinese/English two language interfaces;
2. Status monitoring: system test status;
3. Legend management: Use the status icons in the software to explain the status and understand the test status;
4. Usage permissions: User permissions can be set to facilitate management;
5. Fault status: The software has the fault alarm function of the equipment.
6. Test report: Customize the report format, print the test report with one click, and export reports in EXCEL and PDF formats

Software compatible: Keithley (6487, 6514, 6517b), Keysight (B2985A, B2987A), Tonghui (2683A, 2684A)

Advantage

1. It can use various heating methods such as constant speed, step (heating/lowering), cyclic impact, vacuum, atmosphere, etc.;
2. Using phase-shift trigger technology, the control accuracy fluctuation can be achieved within ±0.25°C;
3. The heating speed is uniform and fast, and it can provide more testing environments for materials.

Application scenarios