基本原理是對試樣加入不同擋位的直流電壓，流經(jīng)試樣的微弱電流用標(biāo)準(zhǔn)電阻取樣放大后,，從高阻計上讀出,。數(shù)字直接顯示出電阻值,精度高、顯示迅速,、穩(wěn)定性好,、讀數(shù)方便。技術(shù)指標(biāo)1,、采用高集成度的3 1/2位數(shù)字顯示,。

2、量程范圍：1×105Ω ～1.999×1014 Ω

3,、測試電壓為DC100V或DC500V或用戶訂制

4,、工作環(huán)境溫度：20℃±2℃，濕度：35%±10%RH

5,、儀器在穩(wěn)定的工作電壓及無信號輸入時1--8小時之間零點漂移小于±5%

6,、儀器對標(biāo)準(zhǔn)電阻測量的基本誤差：≤±10%

體積電阻率表面電阻率測試儀測試電壓：

（V） 10V 50V 100V 250V 500V 1000V

檔位倍率量限Ω 誤差量限Ω 誤差量限Ω 誤差量限Ω 誤差量限Ω 誤差量限Ω 誤差

1 102 1×106

—

2×107 ±10% 5×106

—

1×108 ±10% 1×107—

2×108 ±10% 2.5×107—

5×108 ±10% 5×107

—

1×109 ±10% 1×108

—

2×109 ±10%

2 103 1×107

—

2×108 ±10% 5×107

—

1×109 ±10% 1×108—

2×109 ±10% 2.5×108—

5×109 ±10% 5×108

—

1×1010 ±10% 1×109

—

2×1010 ±10%

3 104 1×108

—

2×109 ±10% 5×108

—

1×1010 ±10% 1×109—

2×1010 ±10% 2.5×109—

5×1010 ±10% 5×109

—

1×1011 ±10% 1×1010—

2×1011 ±10%

4 105 1×109

—

2×1010 ±10% 5×109

—

1×1011 ±10% 1×1010—

2×1011 ±10% 2.5×1010—

5×1011 ±10% 5×1010—

1×1012 ±10% 1×1011—

2×1012 ±10%

5 106 1×1010—

2×1011 ±10% 5×1010

—

1×1012 ±10% 1×1011—

2×1012 ±10% 2.5×1011—

5×1012 ±10% 5×1011—

1×1013 ±20% 1×1012—

2×1013 ±20%

6 107 1×1011—

2×1012 ±10% 5×1011

—

1×1013 ±20% 1×1012—

2×1013 ±20% 2.5×1012—

5×1013 ±20% 5×1012—

1×1014 ±20% 1×1013—

2×1014 ±20%

7 108 1×1012—

2×1013 ±20% 5×1012

—

1×1014 ±20% 1×1013—

2×1014 ±20% 2.5×1013—

5×1014 ±20% 5×1013—

1×1015 ±20% 1×1014—

2×1015 ±20%

8 109 1×1013—

2×1014 ±20% 5×1013

—

1×1015 ±20% 1×1014—

2×1015 ±20% 2.5×1014—

5×1015 ±20% 5×1014—

1×1016 ±20% 1×1015—

2×1016 ±20%

體積電阻率表面電阻率測試儀儀器技術(shù)參數(shù) ：

絕緣材料固體（液體）體積電阻率及表面電阻率測試儀

額定電壓 10 100 250 500 1000 準(zhǔn)確度 ±5 %

電阻測量 1* 106～1* 1017準(zhǔn)確度 ±10 % ±20 %

微電流測量 1* 105～1* 1014準(zhǔn)確度 ±10 % ±20 %

外形尺寸/重量（MM /KG） 380W * 260D * 150H / 10

體積電阻率表面電阻率測試儀主要用途及特點:

適用于科研、工廠,、學(xué)校,、企業(yè)部門對絕緣材料、電工產(chǎn)品,、電子設(shè)備以及元件的絕緣測量和高阻值兆歐電阻的測量也可用著微電流測量,，是一種直讀式和微電流兩用儀器,。

體積電阻率表面電阻率測試儀測試電壓（V）誤差

DC—10V ±5%

DC—50V ±5%

DC—100V ±5%

DC—500V ±5%

DC—1000V ±5%

體積電阻率表面電阻率測試儀適用的主要標(biāo)準(zhǔn)：

GB/T 1410-2006 固體絕緣材料體積電阻率和表面電阻率試驗方法

GB 12014 防靜電工作服

GB/T 20991-2007 個體防護裝備鞋的測試方法

GB 4385-1995 防靜電鞋、導(dǎo)電鞋技術(shù)要求

GB 12158-2006 防止靜電事故通用導(dǎo)則

GB 4655-2003 橡膠工業(yè)靜電安全規(guī)程

GB/T 12703.4-2010 紡織品靜電性能的評定第4部分電阻率

GB/T 12703.6-2010 紡織品靜電性能的評定第6部分纖維泄漏電阻

GB 13348-2009 液體石油產(chǎn)品靜電安全規(guī)程

GB/T 15738-2008 導(dǎo)電和抗靜電纖維增強塑料電阻率試驗方法

GB/T 18044-2008 地毯靜電習(xí)性評價法行走試驗

GB/T 18864-2002 硫化橡膠工業(yè)用抗靜電和導(dǎo)電產(chǎn)品電阻極限范圍

GB/T 22042-2008 服裝防靜電性能表面電阻率試驗方法

GB/T 22043-2008 服裝防靜電性能通過材料的電阻（垂直電阻）試驗方法

GB/T 24249-2009 防靜電潔凈織物

GB 26539-2011 防靜電陶瓷磚 Antistatic ceramic tiles

GB/T 26825-2011 抗靜電防腐膠

GB 50515-2010 導(dǎo)（防）靜電地面設(shè)計規(guī)范

GB 50611-2010 電子工程防靜電設(shè)計規(guī)范

GJB 105-1998-Z 電子產(chǎn)品防靜電放電控制手冊

GJB 3007A-2009 防靜電工作區(qū)技術(shù)要求

GJB 5104-2004 無線電引信風(fēng)帽用防靜電涂料及風(fēng)帽靜電性能通用要求

北京北廣： 010-52869521

Volume resistivity of surface resistivity tester

Digital high resistance, a current measuring instrument type: EST-121: volume resistivity, surface resistivity uses: Instrumentation Test

One, volume resistivity surface resistivity tester overview

This instrument can measure high resistance, and measuring current. The American company In large scale integrated circuit and patented technology, the instrument has the advantages of small volume, light weight, high accuracy. Dual 3.1/2 digital display the resistance high resistance meter and current. Limit from 1× 104 Ω～ 1× 1018 Ω, is currently the most wide measurement range, the most accurate digital ultra high resistance meter. Current measurement range of 2× 10-4 ～ 1× 10-16A. The built-in test voltage is 10/50/100/250/500/1000V adjustable. The instrument has the advantages of high precision, good stability, showing a rapid, easy reading, applied to anti-static products such as anti-static shoes, anti-static plastic rubber products, computer room anti-static floor activities such as the resistance value of the test as well as insulating materials electrical and electronic products insulation resistance measurement. The instrument can measure the resistance, and can directly measure the weak current.

Instrument is fully consistent with and better than the national standard GB1410 " solid electrical insulating materials, insulation resistance, volume resistivity and surface resistance test method " and " American Standard ASTM D257 DC resistance or conductance of insulating materials test methods " and other standards.

Two, volume resistivity surface resistivity tester main features

Resistance measuring range 0.01× 104 Ω～ 1× 1018 Ω

Current measurement range of 2× 10-4A ～ 1× 10-16A

Small volume, light weight, high accuracy

Resistance, current double display

Good performance is stable, easy reading

All the test voltage （ 10/50/100/250/500/1000V ） test resistance results in reading, is removed from the old high resistance meter in different test voltage or different scale should be multiplied by the coefficient of the inconvenient trouble, allowing the measurement of high resistance as the multimeter is used to measure the general resistance of samples is simple.

Not only can measure high resistance and micro current

Wide application: applied to anti-static products such as anti-static shoes, anti-static plastic rubber products, computer room anti-static floor activities such as resistance testing electrical and electronic products insulation resistance measurement

Three, volume resistivity surface resistivity tester technical indicators

The 1 resistor measurement range: 0.01× 104 Ω～ 1× 1018 Ω.

The 2 current measurement range : 2 × 10-4A～ 1 × 10-16A

3 double header display: 3.1/2 LED display

4 built-in test voltage: 10V, 50V, 100V, 250, 500, 1000V

5 basic accuracy: 1% （ note ）

6: use environment temperature: 0℃ ~ 40 ℃, relative humidity <80%

7 built-in test voltage: 10/50/100/250/500/1000V arbitrary switching

The 8 power supply forms: AC 220V, 50HZ, power consumption is about 5W

Four, volume resistivity surface resistivity meter working principle

According to the Ohm's law, the measured resistance is equal to voltage is applied through Rx V divided by the current I. The traditional high resistance meter is the working principle of measuring voltage V fixed, by measuring the current flows through the sampling resistor I to get the value of resistance. From Ohm's law can be seen, because the current I is inversely proportional to the resistance, but not proportional to the resistance, so the display value is nonlinear, namely the resistance to infinity, the current is zero, i.e., zero is∞, in the vicinity of the scale is very dense, with a low resolution. The scale is nonlinear. Because the measurement of different resistance, the voltage V also vary, so the average high resistance meter is poor accuracy, low resolution.

At the same time measure the voltage across the resistor V and the current through the resistor I, through the interior of the large scale integrated circuit to complete the voltage divided by the current calculation, and then the results obtained after A/D conversion to digital show resistance, even if the voltage across the resistor V and the current through the resistor I is changed at the same time, the display resistance value is not as common due to high resistance meter that measured voltage or current change of V I change, so, even if the measured voltage, resistance, power supply voltage is measured the changes in the results have little effect, the measurement accuracy is very high （ patent ）, theoretically the error can be zero, while the actual error can be done a few thousandths or extremely few.

Typical application

1 measurements of anti-static shoes, conductive shoes resistance value

2, measurement of the antistatic material resistance and resistivity

3, measurement computer room with movable floor system resistance

4, measurement of insulation resistance （ rate）

5, photodiode dark current measurement

6, physics, optics and materials research

Canton company other insulating materials testing instruments:

BDJC-0-100KV dielectric breakdown testing instrument

BDJC series insulating materials at power frequencies of dielectric breakdown test instrument

BDJC series voltage dielectric strength test apparatus

BDJC series voltage breakdown testing instrument

BDJC series insulating paint film breakdown strength tester

BDJC capacitor voltage breakdown testing instrument

EST-121 volume surface resistivity measuring instrument

GDAT-A dielectric loss tester / dielectric constant test

GDAT-C model dielectric constant dielectric loss tester

BDH leakage resistance tester

BDH-B arc resistance tester

China Inspection and certification services tip and inlectual leader, helped many testing quality inspection units and schools and research units to provide comprehensive one-stop quality solutions.

Pay attention to every detail is Canton company for each customer commitment, and North Canton company has been pursuing the aim of. Beijing North Canton precision instrument equipment limited

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