供应体积电阻率表面电阻率测定仪（厂家价格）

ZST-121体积电阻率表面电阻率测定仪

注    意   事   项

 

仪器使用前请仔细阅读以下内容，否则将造成仪器损坏或电击情况。

 

1. ★检查仪器后面板电压量程是否置于10V档，电流电阻量程是否置于104档。

2. ★接通电源调零，（注意此时主机不得与屏蔽箱线路连接）在“Rx”两端开路的情况下，调零使电流表的显示为0000。然后关机。

3. ★将待测试样平铺在不保护电极正中央，然后用保护电极压住样品，再插入被保护电极（不保护电极、保护电极、被保护电极应同轴且确认电极之间无短路）。 

4. ★测体积电阻时测试按钮拨到Rv边，测表面电阻时测试按钮拨到Rs边，

5. ★接好测试线，将测试线将主机与屏蔽箱连接好。量程置于104档，打开主机后面板电源开关按钮。从仪器后面板调电压按钮到所要求的测量电压。(比如：GBT 1692-2008 硫化橡胶 绝缘电阻率的测定 标准中注明要求在500V电压进行测定，那么电压就要升到500V)

6. ★电流电阻量程按钮从低档位逐渐拨高档，每拨一次停留1-2秒观察显示数字，当被测电阻大于仪器测量量程时，电阻表显示“1”，此时应继续将仪器拨到量程更高的位置。测量仪器有显示值时应停下，在1min的电化时间后测量电阻，当前的数字乘以档次即是被测电阻。

7. ★测试完毕先将量程拨至（104）档，然后将测量电压拨至10V档，最后将测试按钮拨到中央位置后关闭电源。然后进行下一次测试。

8. ★应在“Rx”两端开路时调零，一般一次调零后在测试过程中不需再调零。

9. ★禁止将“RX”两端短路，以免微电流放大器受大电流冲击。

10. ★不得在测试过程中不要随意改动测量电压。

11. ★测量时从低次档逐渐拨往高次档。

12. ★接通电源后，手指不能触及高压线的金属部分。

13. ★不得测试过程中不能触摸微电流测试端。

14. ★在测量高阻时，应采用屏蔽盒将被测物体屏蔽。

15. ★严禁在试测过程随意改变电压量程及在通电过程中打开主机。

16. ★严禁电流电阻量程未在104档及电压在10V档，更换试样。

 

 ZST-121体积电阻率表面电阻率测定仪

Instrument for measuring volume resistivity of the surface resistivity of ZST-121

Note that

The instrument before use, please read the following carefully, otherwise it will cause the instrument damage or shock condition.

1 * check the instrument panel voltage range is placed after the 10V file, the currentresistance range is placed 104 file.

2. Connect the power supply zero, (note that when the host shall not be connected with theshielding box line) in the "Rx" both ends open circuit case, zero to display the current table0000. Then shut down.

3. The test samples will be tiled without protecting the electrode is central, and then use theguard electrode pressed samples, and then insert the protected electrode (do not protect theelectrode, electrode, electrode protection protected should be no short circuit between the coaxial electrodes and confirm).

The test button dial to 4 * Rv edge measuring volume resistance, surface resistancemeasurement when the test button dial to Rs side,

5 * connected test line, will test line will host and shielding box connected. The range is arranged in the 104 file, open the computer after the panel power switch button. From the instrument panel after voltage regulating button to measure the voltage required. (for example: GBT determination standard of 1692-2008 vulcanized rubber insulation resistivityindicate requirements were determined, in the 500V voltage the voltage will rise to 500V)

6. Current resistance range from low level gradually dial button high-grade, each dial againstay 1-2 seconds to observe the digital display, when the measured resistance greater than the instrument measurement range, resistance meter shows "1", this time should continue toinstrument dial to range to a higher position. Measuring instruments have displayed valueshould be stopped, measuring the resistance in the electrochemical after time 1min, the current number multiplied by the grade is measured resistance.

7. The test finished first range dial to (104) file, and then measuring the voltage transferred to the 10V file, will be the final test button dial to the central position after power off. And thenthe next test.

8 it should be in the "Rx" open end tune zero, a general tone in the testing process does not need to be zero zero.

9 * ban the use of "RX" ends in order to avoid short circuit, a micro current amplifier by the large current impact.

10 * not in the test process, do not arbitrarily change the voltage measurement.

11. When measured from low to higher gear shifting gear gradually.

12. After the power is switched on, the metal part of the finger can not touch the high-voltage wire.

13. Shall not touch the micro current measurement end testing process.

14. The measurements on high resistance, should use the shielding box of the object isshielded.

15 it is strictly prohibited in the testing process to randomly change the voltage range andopen the host in the electrifying process.

It is strictly prohibited to 16 current resistance range in 104 stalls and voltage in the 10V file,the replacement of specimen.

Instrument for measuring volume resistivity of the surface resistivity of ZST-121

Mode of operation

ZST-121 volume, surface resistivity tester is a precision measurement instrument of highresistance and very weak current is because the machine has a high performance of theelectrometer amplifier, although the instrument has many protection measures, the ultra high performance electrostatic amplifier in these incorrect operation in use are likely due to too large the current impact, over voltage or discharge of permanent damage or reduce themeasurement accuracy and performance.

The testing process

Incorrect operation mode

The consequences

Whether you read

Before starting the machine

No voltage shifting to 10V, resistance current range shift shifting to 104

Overcurrent impact instrument amplifier overcurrent damage

The testing process

Free adjustment after the panel voltage range and change the test voltage

Over current or reverse discharging overcurrent damage caused by shock instrument

The testing process

Change the shielding box on a decent resistance, surface electrical test switch

Over current or reverse discharging overcurrent damage caused by shock instrument

The testing process

The test voltage is too high, resulting in the breakdown of test materials

Over current or reverse discharge impact instrument over current and the damage orreduced performance measurement

The testing process

Short micro current measurement line and the high voltage line

Over current or reverse discharge impact instrument over current and the damage orreduced performance measurement

Test completed

The voltage range will not be allocated to 10V, resistance current range shift shifting to 104shutdown.

Over current or reverse discharge impact instrument over current and the damage orreduced performance measurement

ZST-121 determination of volume resistivity tester overview of surface resistivity

This instrument can measure both ultra high resistance, and can be measured extremely weak current. Using large scale integrated circuit and new patent technology, the instrumenthas the advantages of small volume, light weight, high accuracy. With digital liquid crystal display resistance and directly display the current flows through the measured resistance.Resistance range from 1 * 104 to 1 * 1018 Omega Omega, current measuring range of 2 * 10-4A to 1 * 10-16A. The built-in test voltage of DC10V, 50V, 100V, 250V, 500V, 1000V.

The instrument has high precision, good stability, show rapid, convenient reading, suitable formeasuring insulation resistance in anti-static products such as anti-static shoes, anti-staticplastic and rubber products, computer room inspection activities such as anti electrostaticfloor value of resistance and insulation materials and electronic products. In addition to the instruments can measure resistance, can also direct current measurements such as the electronic devices such as dark current.

The main features of ZST-121 instrument for determination of volume resistivity surface resistivity

Resistance measurement range of 1 * 104 to 1 * 1018 Omega omega;

The current measurement range of 2 * 10-4A to 1 * 10-16A;

Small volume, light weight, high accuracy;

Current flowing through the resistor, and the resistor is measured the unique dual display,make the operation more convenient measurement;

Stable performance, easy reading;

Not only can measure resistance and can measure current;

The test voltage is six DC10V, 50V, 100V, select 250V, 500V, 1000V;

Easy to use, in any resistance range and testing