FT-371Series high resistance dual electric four probe tester

FT-371 Series high

resistance double electric four-probe tester

Function Overview Overview:

1. It can test a resistance of 1010 Ω square

2. LCD display, high-precision AD chip control

3. Constant current output, dual position measurement with four probes

4. Refer to the American A.S.T.M standard

5. Chinese or English language versions

Application Description Widely

used：

Cover film; Conductive polymer film, high and low temperature electric heating film; Thermal insulation, conductive window film, conductive (shielding) cloth, decorative film, decorative paper; Metallized labels, alloy foil films; Melting, sintering, sputtering, coating, coating layers, resistive and capacitive touch screen films; Resistance testing of electrode coatings, other semiconductor materials, and thin film materials

8. Working power supply

1.Input: AC 220V ± 10%. 50Hz power consumption:< 30W9. Errors

Machine

uncertain≤15%

10. Choose to buy function

Choose 1. PC software; Choose 2. Square probe; Choose 3. Linear probe; Purchase 4. Testing Platform 1. PCsoftware; 2. square probe; 3. linear probe; 4. test platform11. Test probe

Probe spacing selection: 2mm； Two specifications of 3mm; Probe material selection: tungsten carbide needle, gold-plated phosphor copper hemispherical needle Optional probe spacing: 1mm； 2mm； 3mm in three sizes. Select probe material: tungsten carbide needle.white steel needle. gilded copper hemispherical needles.

Working principle and calculation formula

The calculation and testing principle of the square resistance of thin layer samples using the dual electric measurement four probe method are as follows

：

The layout of the linear four probe test is shown in Figure 8, with adjacent needle distances of S1 S2、S3, According to the principles of physics and electricity:

When the current passes through probes 1 and 4, and probes 2 and 3 test the voltage, the calculation is as follows:

Working principle diagram of four probe tester

Whole machine schematic diagram

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Display interface

PC

Software interface diagram

Steps and processes

1. Turn on the power and preheat for 5 minutes

2. Assemble the probe and testing platform

3. Set the required parameters

4. Measure the sample

5. Export data

Advantages description:

1. Automatic range

2. Accurate stability

3. Standard resistance calibration instrument

4. Running PC software

5. Simultaneously display resistance, resistivity, and conductivity data

6. Can display 5 digits

7. Chinese and English interface

Partial customer cases

South China University of Technology

Far East Foster New Energy Co., Ltd

South University of Science and Technology of China

1.Fujian Quanzhou Wanlong Industrial Co., LtdSuzhou Huanming Electronic Technology Co., Ltd

2.Shijiazhuang Ordnance Institute

Tianjin Yihengda Technology Co., Ltd

3.Nanchang Gongjin Technology Co., Ltd

Wood Forest Co., Ltd

4.anhui normal university

Guangxi Xinghongyuan Technology Co., Ltd

5.Zhejiang Lide Product Technology Co., Ltd

Sample of Factory Inspection Report

Service Items

Warranty:

12 months, long-term maintenance

Training: Operation Training:

Telephone teaching; USB teaching files; Remote visual communication; On site teaching; Instruction manual and teaching documents

Maintenance and upkeep:

Provide knowledge maintenance and maintenance documents, labels, forms, and maintenance reminders

Verification file:

3Q verification documents, measurement certificates

Extended Services:

Extended warranty service, sample testing service, extended service, instrument rental service

Supporting plan:

Resolve the status of various materials

--Solid state, liquid state, gas state, granular resistance, resistivity, conductivity measurement

Supporting selection plan

Handheld four probe tester

High temperature four probe tester

Ordinary four probe tester

Low resistance four probe tester