contact current tester

Product characteristics of [contact current tester]

1. Comply with GB8898-2011 standard, GB4943-2011 standard and GB4706.1-2005 standard;

2. Used to measure the contact current of the test sample;

3. Control with FPGA of ALTERA company;

4. Adopt advanced A / D conversion technology to sample;

5.LCD shows all kinds of parameters and the amplitude of contact current.

6. Can be customized according to customer needs non-standard.

Product brief of [contact current Tester]

Model 421A contact current tester is a contact current instrument for measuring test samples. The instrument is composed of human impedance network and measuring system. LCD is used to display the working power supply voltage, contact current amplitude and functional parameters of the test sample. At the same time, the voltage value of the high frequency signal can also be measured. The FPGA of ALTERA is used to control the contact current without the help of oscilloscope. The contact current peak value can be read directly in the LCD screen without the help of oscilloscope. Designed and manufactured according to the requirements of GB8898-2011, GB4943-2011, GB4706.1-2005, etc., can be applied to Class I equipment, Class II equipment and Class III equipment shall be subjected to contact current test. The instrument is suitable for the contact current test of various household appliances, information products, cash machines, instruments and equipment.

Technical parameters of [contact current tester] (not customizable)

Input characteristics

1. Input voltage: AC 220V ±10%;

2. Input frequency: 50 Hz / 60 Hz;

3. Working environment: temperature: 10 ℃ ~ 30 ℃, humidity: less than 75% RH;

4. Power supply safety pipe: 3A;

5. Dimensions: 300 (W) x 356 (D) x 100 (H);

6. Weight: about 10.

Qualification：

1. Internal measurement of contact current: automatic measurement;

2. Internal measurement range of contact current: U1:25mVp~10Vp; U2:0.035mA~14mA or 25mVp / 10Vp;

3. External measurement of contact current: external oscilloscope;

4. The frequency range of high frequency voltage measurement is 50Hz ~ 1MHz;

5. The range of measuring amplitude of high frequency voltage is 25mVp / 10Vp;

6. The range of measurement amplitude of high frequency voltage: ±5% ±3 words;

7. Input the maximum voltage: 60Vp;

8. Frequency characteristics of human impedance network: the human impedance network is shown in Figure 1 with an error of less than about 5%;

9. Power supply capacity: 500VA;

10. Supply voltage range of sample supply:0-300V;

11. Power supply voltage accuracy:3% to 3 words.

Maintenance and regular maintenance of [contact current tester]

Maintenance:

To prevent the occurrence of electric shock, do not lift the cover of the instrument. All parts inside the instrument need not be maintained by the user. If there is an abnormal condition in the instrument, please ask for maintenance from my laboratory. the attached lines and block diagrams are for reference only.

Regular maintenance:

At least once a year, the AC power supply and relevant accessories of input power line shall be carefully checked and checked to protect the safety of the user and the accuracy of the instrument.

For more information about products, please contact us and visit the company.

Address: Tianhui Road, Wisdom City, Tianhe District, Guangzhou

Tel: 86-20-37896688

Fax:86-20-37896699

Mobile phone: 86-13711272581,Miss Liu

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