DD北京北廣精儀儀器設(shè)備有限公司 鄭重聲明：*

體積電阻率表面電阻率測(cè)試儀  型號(hào)：BEST-121

本儀器是既可測(cè)量高電阻，又可測(cè)微電流。采用了美國(guó)In公司的大規(guī)模集成電路以及技術(shù),使儀器體積小、重量輕、準(zhǔn)確度高。以雙3.1/2 位數(shù)字直接顯示電阻的高阻計(jì)和電流。量限從1×104Ω ～1×1018 Ω，是目前國(guó)內(nèi)測(cè)量范圍zui寬，準(zhǔn)確度zui高的數(shù)字超高阻測(cè)量?jī)x。電流測(cè)量范圍為2×10-4 ～1×10-16Ａ。機(jī)內(nèi)測(cè)試電壓為10/50/100/250/500/1000V任意可調(diào)。本儀器具有精度高、顯示迅速、性好穩(wěn)定、讀數(shù)方便， 適用于防靜電產(chǎn)品如防靜電鞋、防靜電塑料橡膠制品、計(jì)算機(jī)房防靜電活動(dòng)地板等電阻值的檢驗(yàn)以及絕緣材料和電子電器產(chǎn)品的絕緣電阻測(cè)量。本儀器除能測(cè)電阻外，還能直接測(cè)量微弱電流。

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.

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(yàn)方法

 GB 12014 防靜電工作服

 GB/T 20991-2007 個(gè)體防護(hù)裝備 鞋的測(cè)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(píng)定 第4部分 電阻率

 GB/T 12703.6-2010 紡織品 靜電性能的評(píng)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(qiáng)塑料電阻率試驗(yàn)方法

 GB/T 18044-2008 地毯 靜電習(xí)性評(píng)價(jià)法 行走試驗(yàn)

 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(yàn)方法

 GB/T 22043-2008 服裝 防靜電性能 通過(guò)材料的電阻（垂直電阻）試驗(yàn)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(jì)規(guī)范

 GB 50611-2010 電子工程防靜電設(shè)計(jì)規(guī)范

 GJB 105-1998-Z 電子產(chǎn)品防靜電放電控制手冊(cè)

 GJB 3007A-2009 防靜電工作區(qū)技術(shù)要求

 GJB 5104-2004 無(wú)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

 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

四、測(cè)試 

將被測(cè)試樣用測(cè)量電纜線和導(dǎo)線分別與訊號(hào)輸入端和測(cè)試電壓輸出端連接。 將測(cè)試電壓選擇開(kāi)關(guān)置于所需要的測(cè)試電壓檔。 將“放電-測(cè)試”開(kāi)關(guān)置于“測(cè)試”檔，輸入短路開(kāi)關(guān)仍置于“短路”。對(duì)試樣經(jīng)一定時(shí)間的充電以后（視試樣的容量大小而定，一般為15秒。電容量大時(shí)，可適當(dāng)延長(zhǎng)充電時(shí)間），即可將輸入短路開(kāi)關(guān)撳至“測(cè)量”進(jìn)行讀數(shù)，若發(fā)現(xiàn)指針很快打出滿刻度，應(yīng)立即撳輸入短路開(kāi)關(guān)，使其置于“短路”， 將“放電-測(cè)試”開(kāi)關(guān)置于“放電”檔，等查明原因并排除故障后再進(jìn)行測(cè)試。 當(dāng)輸入短路開(kāi)關(guān)置于測(cè)量后，如發(fā)現(xiàn)表頭無(wú)讀數(shù)，或指示很少，可將倍率開(kāi)關(guān)逐步升高，數(shù)字顯示依次為7、8、9、…直至讀數(shù)清晰為止（盡量取儀表上1～10的那段刻度）。通過(guò)旋轉(zhuǎn)倍率旋鈕，使示數(shù)處于半偏以內(nèi)的位置，便于讀數(shù)。測(cè)量時(shí)先將RV/RS轉(zhuǎn)換開(kāi)關(guān)置于RV測(cè)量體積電阻，然后置于RS測(cè)量表面電阻。讀數(shù)方法如下：表頭指示為讀數(shù)，數(shù)字顯示為10的指數(shù)，單位W。用不同電壓進(jìn)行測(cè)量時(shí)，其電阻系數(shù)不一樣，電阻系數(shù)標(biāo)在電壓值下方。將儀表上的讀數(shù)（單位為兆歐）乘以倍率開(kāi)關(guān)所指示的倍率及測(cè)試電壓開(kāi)關(guān)所指的系數(shù)（10V為0.01；100V為0.1；250V為0.25；500V為0.5；1000V為1）即為被測(cè)試樣的絕緣電阻值。例如：讀數(shù)為3.5′106W倍率開(kāi)關(guān)所指系數(shù)為108，測(cè)量電壓為100V，則被測(cè)電阻值為：3.5′106′108′0.1 =3.5′1013W。 在測(cè)試絕緣電阻時(shí)，如發(fā)現(xiàn)指針有不斷上升的現(xiàn)象，這是由于電介質(zhì)的吸收現(xiàn)象所致，若在很長(zhǎng)時(shí)間內(nèi)未能穩(wěn)定，則一般情況下取接通測(cè)試開(kāi)關(guān)后一分鐘時(shí)的讀數(shù)作為試樣的絕緣電阻值。

一個(gè)試樣測(cè)試完畢，即將輸入短路撳鍵置于“短路”，測(cè)試電壓控制開(kāi)關(guān)置于“關(guān)”后，將方式選擇開(kāi)關(guān)撥向放電位置，幾分鐘后方可取出試樣。對(duì)電容量較大的試樣者需經(jīng)1分鐘左右的放電，方能取出試樣，以免受測(cè)試系統(tǒng)電容中殘余電荷的電擊。。若要重復(fù)測(cè)試時(shí)，應(yīng)將試樣上的殘留電荷全部放掉方能進(jìn)行。

然后進(jìn)入下一個(gè)試樣的測(cè)試：為了操作簡(jiǎn)便無(wú)誤，測(cè)量絕緣材料體積電阻（Rv）和表面電阻（Rs）時(shí)采用了轉(zhuǎn)換開(kāi)關(guān)。當(dāng)旋鈕指在Rv處時(shí)，高壓電極加上測(cè)試電壓。保護(hù)電極接地，當(dāng)旋鈕指在Rs處時(shí)，保護(hù)電極加上測(cè)試電壓，高壓電極接地。 儀器使用完畢，應(yīng)先切斷電源，將面板上各開(kāi)關(guān)恢復(fù)到測(cè)試前的位置，拆除所有接線，將儀器安放保管好。

準(zhǔn)備 

使用前，面板上的各開(kāi)關(guān)位置應(yīng)如下：

ａ） 倍率開(kāi)關(guān)置于靈敏度zui低檔位置。

ｂ） 測(cè)試電壓開(kāi)關(guān)置于“10V”處

c） “放電-測(cè)試”開(kāi)關(guān)置于“放電”位置。

d） 電源總開(kāi)關(guān)（POWER）置于“關(guān)”。

e） 輸入短路撳鍵置于“短路”。

f） 極性開(kāi)關(guān)置于“0”。

檢查測(cè)試環(huán)境的濕度是否在允許的范圍內(nèi)。尤其當(dāng)環(huán)境濕度高于80%以上時(shí)，對(duì)測(cè)量較高的絕緣電阻（大于10 11Ω及小于10-8 A）時(shí)微電流可能會(huì)導(dǎo)致較大的誤差。

接通電源預(yù)熱30分鐘，將極性開(kāi)關(guān)置于“+”，此時(shí)可能發(fā)現(xiàn)指示儀表的指針會(huì)離開(kāi)“∞”及“0”處，這時(shí)可慢慢調(diào)節(jié)“∞”及“0”電位器，使指針置于“∞”及“0”處。

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

六、 技術(shù)參數(shù) 

·         型 號(hào) SB36固體（液體）體積電阻率及表面電阻率測(cè)試儀

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

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

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

·         外形尺寸/重量（MM /KG） 380W * 260D * 150H / 10 主要用途及特點(diǎn): 

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

測(cè)試電壓（V） 誤 差 

DC—10V ±5% 

DC—50V ±5% 

DC—100V ±5% 

DC—500V ±5% 

DC—1000V ±5% 

　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.

七、測(cè)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% 

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

北廣公司其它絕緣材料檢測(cè)儀器: 

BDJC-0-100KV 介電擊穿試驗(yàn)儀

BDJC系列絕緣材料工頻率介電擊穿試驗(yàn)儀

BDJC系列電壓介電強(qiáng)度試驗(yàn)儀器

BDJC系列 電壓擊穿試驗(yàn)儀 

BDJC系列絕緣漆漆膜擊穿強(qiáng)度試驗(yàn)儀

BDJC電容器紙工頻電壓擊穿試驗(yàn)儀

BEST-121 體積表面電阻率測(cè)定儀 

GDAT-A介質(zhì)損耗測(cè)試儀/介電常數(shù)測(cè)試儀 

GDAT-C新型介電常數(shù)介質(zhì)損耗測(cè)試儀

BDH 耐漏電起痕試驗(yàn)儀

BDH-B耐電弧試驗(yàn)儀