a 材料高阻測(cè)試測(cè)量如防靜電產(chǎn)品（防靜電鞋、防靜電塑料橡膠制品、計(jì) 算機(jī)房防靜電活動(dòng)地板等）電阻值的檢測(cè)；

b 材料體積電阻(率)和表面電阻(率)測(cè)量；

c 電化學(xué)和材料測(cè)試,以及物理,光學(xué)和材料研究;

d 微弱電流測(cè)量如光電效應(yīng)和器件暗電流測(cè)量。

體積表面電阻率測(cè)試儀使用方法 ：

1、接好電源線

確保電源為220VAC/50Hz

2、接通電源

將電流電阻量程置于 104 檔,電壓量程置于10V，然后開(kāi)機(jī)。

3、調(diào)零

在“Rx”兩端開(kāi)路的情況下,調(diào)零使電流表的顯示為0000 .注意：在“Rx”兩端不開(kāi)路，如接在電阻箱或被測(cè)量物體上時(shí)調(diào)零后測(cè)量會(huì)產(chǎn)生很大的誤差。一般一次調(diào)零后在測(cè)試過(guò)程中不需再調(diào)零。 完畢后關(guān)機(jī)。

4、連接線路

接好測(cè)試線，將測(cè)試線將主機(jī)與屏蔽箱連接好，測(cè)體積電阻時(shí)測(cè)試按鈕撥到Rv邊，測(cè)表面電阻時(shí)測(cè)試按鈕撥到Rs邊。然后開(kāi)機(jī)。

5、選擇合適的測(cè)量電壓

電壓選擇開(kāi)關(guān)在后面板，注意，在測(cè)試過(guò)程中不要隨意改動(dòng)測(cè)量電壓，可能因電壓的過(guò)高或電流過(guò)大損壞被測(cè)試器件或測(cè)試儀器;

6、測(cè)試

測(cè)量時(shí)從低檔位逐漸拔往高檔，每撥一次稍停留1～2秒以使觀察顯示數(shù)字， 當(dāng)被測(cè)電阻大于儀器測(cè)量量程時(shí)，電阻表顯示“1”，此時(shí)應(yīng)繼續(xù)將儀器撥到量程更高的位置，當(dāng)測(cè)量?jī)x器有顯示值時(shí)應(yīng)停下，當(dāng)前的數(shù)字乘以檔次即是被測(cè)電阻值。當(dāng)有顯示數(shù)字時(shí)不要再往更高次檔撥，否測(cè)儀器會(huì)過(guò)量程，機(jī)內(nèi)保護(hù)電路開(kāi)始工作，儀器測(cè)量準(zhǔn)確度會(huì)下降。

7、 測(cè)試完畢將電阻電流量程拔至“104 ”檔，電壓量程調(diào)至10V后關(guān)閉電源

每測(cè)量一次均應(yīng)將量程開(kāi)關(guān)撥回到104“調(diào)零”檔的量程位置以免開(kāi)機(jī)或測(cè)量端短路時(shí)而損壞儀器。

8、 測(cè)量電流及1015Ω以上超高電阻的測(cè)量應(yīng)用測(cè)量電流后用歐姆定律以電壓除以電流計(jì)算電阻的方法，詳見(jiàn)8.5節(jié)內(nèi)容。

9 、體積電阻和表面電阻轉(zhuǎn)換

在測(cè)試過(guò)程中，使用屏蔽箱在進(jìn)行體積電阻和表面電阻轉(zhuǎn)換時(shí)，必須把電源關(guān)閉后進(jìn)行檔位轉(zhuǎn)換，否則會(huì)導(dǎo)致電壓沖擊到主機(jī)無(wú)法顯示或損壞。

Standards and scope of application:

Volume surface resistivity tester completely accord with the national standard GB14102006 solid electrical insulation insulation resistance, volume resistivity and surface resistance test method of material ASTM, D257 DC resistance or conductance of insulating materials test methods such as standard.

A volume surface resistivity tester with different measuring electrodes (clamps) that measures the volume resistivity and surface resistivity or conductivity of different materials (solids, powders, or liquids). Applicable to rubber, plastic, film, and powder, liquid, and solid and paste shape of various insulation materials, volume and surface resistance value measurement. Besides measuring resistance, the instrument can measure weak current directly.

Application range of volume surface resistivity tester:

A material high resistance test measurement, such as anti-static products (anti-static shoes, anti-static plastic rubber products, computer room, anti-static floor, etc.) resistance detection;

Volume resistivity (rate) and surface resistance (rate) measurement of B material;

C electrochemical and material testing, as well as physical, optical, and material studies;

D weak current measurement, such as photoelectric effect and device dark current measurement.

Technical index of volume surface resistivity tester:

1. resistance measurement range: 1 * 104 to 1 * 1018 ohms, divided into ten ranges.

The measuring range of 2. current is 2 * 10-4A to 1 * 10-16A

3. all digital LCD display.

4. accuracy: accuracy is better than the table below

Range effective display range 20~30 RH<80%

104 0.01~19.99 5%

1050.01 to 19.995%

1060.01 to 19.995%

1070.01 to 19.995%

1080.01 to 19.995%

1090.01 to 19.995%

10100.01 to 19.99 5%+2 words

10110.01 to 19.99 5%+2 words

10120.01 to 19.99 5%+5 words

10130.01 to 19.99 10%+5 words

10140.01 to 19.99 10%+5 words

1014 more than 0.01 to 19.99 10-15%+5 words

The error may increase when the effective display range is exceeded. The accuracy of the test current is the same as that of the resistor, and the accuracy of the test voltage is 10%

5. use environment: temperature -10 ~ 50 DEG C, relative humidity <90%.

6. test voltage: DC10V, 50V, 100V, 250V, 500V, 1000V. + 10%

7. power supply form: AC, 220V, 50HZ, power consumption of about 10W.

8. instrument size: 300mm * 280mm * 150 mm.

9. quality: about 3.0KG.

Method for using volume surface resistivity tester:

1. Connect the power cord

Make sure the power is 220VAC/50Hz

2. Switch on the power

Put the current resistance range in the 104 gear, the voltage range is placed at 10V, and then turn on.

3, zeroing

In the "Rx" open end under the condition of zero to display the current scale is 0 note: do not open the "Rx" ends, such as the resistance box or the object to be measured at zero on the measurement will produce great error. After a single zeroing, no zeroing is needed during the test. Shutdown after completion.

4. Connecting lines

Connect the test line, connect the host to the shield box, and measure the volume resistance. The test button is set on the Rv side. When the surface resistance is measured, the test button is set to the Rs edge. Then boot.

5, select the appropriate measuring voltage

Voltage selector switch in the rear panel, note that during the test, do not arbitrarily change the measurement voltage, may be due to excessive voltage or excessive current damage test device or test instrument;

6, test

When measuring from the low level to high level gradually pulling, each dial again slightly for 1 to 2 seconds to make the observation of figures, when the measured resistance is greater than the instrument measurement range, the resistance table shows "1", this time should be allocated to the instrument range to a higher position, when the measurement instrument display value should be stop, the digital grade is multiplied by the measured resistance value. When there is a digital display, do not dial the higher gear again, or the measuring instrument will pass the measuring range, the protection circuit inside the machine will start to work, and the accuracy of the instrument measurement will decrease.

7 、 after testing, draw the resistance current range to "104" file, and the voltage range is adjusted to 10V, then turn off the power supply

Once measured, the range switch should be moved back to the range of the 104 "zero" shift so as not to start or measure the short circuit and damage the instrument at the same time.

8. Measuring current and measuring over 1015 ohm resistance. After measuring current, use Ohm's law to calculate the resistance by dividing voltage by current. See section 8.5.

9 volume resistance and surface resistance conversion

In the test process, when using a shielded box for volume resistance and surface resistance conversion, the power must be switched off after the gear shift, otherwise it will cause voltage shock to the host, can not show or damage.