絕緣表面電阻測試儀電導率(lv)和電阻率(lv)之間(jian)和關系？

　　電(dian)阻(zu)率：是(shi)(shi)用(yong)來表示各種物(wu)(wu)質電(dian)阻(zu)特性(xing)的(de)物(wu)(wu)理(li)量(liang)。某種材(cai)料(liao)制成的(de)長1米(mi)(mi)、橫(heng)截面積是(shi)(shi)1平方(fang)毫米(mi)(mi)的(de)導線的(de)電(dian)阻(zu)，叫做(zuo)這種材(cai)料(liao)的(de)電(dian)阻(zu)率。國(guo)際單(dan)位(wei)制中，電(dian)阻(zu)率的(de)單(dan)位(wei)是(shi)(shi)歐(ou)姆·米(mi)(mi)，常用(yong)單(dan)位(wei)是(shi)(shi)歐(ou)姆·平方(fang)毫米(mi)(mi)/米(mi)(mi)。

　　電(dian)導率：水(shui)的(de)導電(dian)性即水(shui)的(de)電(dian)阻(zu)的(de)倒數，通(tong)常用(yong)它來表示(shi)水(shui)的(de)純(chun)凈度。

　　電(dian)(dian)導(dao)(dao)率是物體傳導(dao)(dao)電(dian)(dian)流(liu)的(de)(de)能力。電(dian)(dian)導(dao)(dao)率測(ce)(ce)量儀(yi)的(de)(de)測(ce)(ce)量原理是將兩塊平(ping)行(xing)的(de)(de)極板(ban)，放到(dao)被測(ce)(ce)溶(rong)液中，在極板(ban)的(de)(de)兩端加上一(yi)定(ding)的(de)(de)電(dian)(dian)勢(shi)（通(tong)常為正弦波電(dian)(dian)壓(ya)），然后(hou)測(ce)(ce)量極板(ban)間流(liu)過的(de)(de)電(dian)(dian)流(liu)。根據歐姆定(ding)律，電(dian)(dian)導(dao)(dao)率(G)--電(dian)(dian)阻(R)的(de)(de)倒數，是由電(dian)(dian)壓(ya)和電(dian)(dian)流(liu)決定(ding)的(de)(de)。

　　電(dian)導率(lv)的(de)基本單(dan)位是(shi)西門子（S），原來(lai)被稱為姆歐，取電(dian)阻單(dan)位歐姆倒數(shu)(shu)之(zhi)(zhi)意。因為電(dian)導池(chi)的(de)幾何形狀影響電(dian)導率(lv)值，標準(zhun)的(de)測(ce)(ce)量中用單(dan)位電(dian)導率(lv)S/cm來(lai)表示，以補償各(ge)種電(dian)極(ji)(ji)尺寸造成的(de)差別。單(dan)位電(dian)導率(lv)（C）簡(jian)單(dan)的(de)說是(shi)所(suo)測(ce)(ce)電(dian)導率(lv)（G）與電(dian)導池(chi)常數(shu)(shu)(L/A)的(de)乘積(ji).這里的(de)L為兩塊極(ji)(ji)板之(zhi)(zhi)間的(de)液柱(zhu)長度，A為極(ji)(ji)板的(de)面(mian)積(ji)。

　　=ρl=l/σ

　　(1)定(ding)義或解釋 電(dian)阻率(lv)(lv)的(de)倒(dao)數為電(dian)導(dao)率(lv)(lv)。σ=1/ρ (2)單(dan)位(wei): 在國際(ji)單(dan)位(wei)制中,電(dian)導(dao)率(lv)(lv)的(de)單(dan)位(wei)是西(xi)門子(zi)/米。 (3)說明 電(dian)導(dao)率(lv)(lv)的(de)物(wu)(wu)理(li)意(yi)義是表(biao)示物(wu)(wu)質(zhi)導(dao)電(dian)的(de)性能。電(dian)導(dao)率(lv)(lv)越(yue)大則導(dao)電(dian)性能越(yue)強,反之越(yue)小。

　　電(dian)導(dao)和電(dian)導(dao)率是什么(me)關(guan)系(xi)：

　　電(dian)導率(lv)，物理學(xue)概念，指在(zai)介(jie)(jie)質中該(gai)量與電(dian)場強度(du)之(zhi)積(ji)等于傳導電(dian)流(liu)密度(du)。對于各(ge)(ge)向(xiang)同性介(jie)(jie)質，電(dian)導率(lv)是(shi)標量；對于各(ge)(ge)向(xiang)異(yi)性介(jie)(jie)質，電(dian)導率(lv)是(shi)張(zhang)量。生(sheng)態學(xue)中，電(dian)導率(lv)是(shi)以數字表示的(de)溶(rong)液傳導電(dian)流(liu)的(de)能力。單位(wei)以西門子每米（S/m）表示。

　　（1）英文：conductivity(orspecific conductance)

　　（2）定義：電(dian)阻率(lv)(lv)的倒數為電(dian)導(dao)(dao)率(lv)(lv)，用希臘字母κ表示（或者γ[1]），κ=1/ρ。除非(fei)特別(bie)指明(ming)，電(dian)導(dao)(dao)率(lv)(lv)的測(ce)量溫(wen)度是標準溫(wen)度（ 25 °C ）。

　　（3）單位(wei)：在國際(ji)單位(wei)制中，電導率的單位(wei)稱為西(xi)門子/米（S/m），其它單位(wei)有：MS/m，S/cm，μS/cm。1S/m=1000mS/m=1000000μS/m=10mS/cm=10000μS/cm。

　　（4）說(shuo)明：電(dian)導(dao)率的物(wu)理意(yi)義(yi)是表示物(wu)質導(dao)電(dian)的性(xing)能。電(dian)導(dao)率越(yue)(yue)大則導(dao)電(dian)性(xing)能越(yue)(yue)強，反之越(yue)(yue)小。另(ling)外，不少(shao)人將電(dian)導(dao)跟(gen)電(dian)導(dao)率混淆：電(dian)導(dao)是電(dian)阻的倒(dao)數，電(dian)導(dao)率是電(dian)阻率的倒(dao)數。

　　標準配置：

　　1 主機(ji) 1 臺

　　2 屏(ping)蔽箱 1 臺

　　3 電極(ji) 1 套(tao)

　　4 測(ce)試線+電源線 5 條

　　備注：

　　本(ben)儀器配不(bu)同的測量(liang)電(dian)(dian)可以測量(liang)不(bu)同材料(liao)（固體、粉(fen)體或(huo)液體）的體積電(dian)(dian)阻(zu)率和表面電(dian)(dian)阻(zu)率或(huo)電(dian)(dian)導率，*符(fu)合國家(jia)標準GB1410－2006固體電(dian)(dian)工絕(jue)緣(yuan)材料(liao)絕(jue)緣(yuan)電(dian)(dian)阻(zu)、體積電(dian)(dian)阻(zu)系數和表面電(dian)(dian)阻(zu)試驗方法，ASTM D257 絕(jue)緣(yuan)材料(liao)的直流電(dian)(dian)阻(zu)或(huo)電(dian)(dian)導試驗方法等(deng)標準要求(qiu)。

絕緣表面電阻測試儀符合標準：

GB/T 1410-2006《 固體絕緣材(cai)料體積電(dian)(dian)阻(zu)率和表面電(dian)(dian)阻(zu)率試驗方(fang)法》

ASTM D257-99《絕緣(yuan)材料的直流電阻或電導試驗(yan)方(fang)法(fa)》

GB/T 10581-2006 《絕緣材料在高溫下電阻和電阻率的試(shi)驗方法(fa)》

GB/T 1692-2008 《硫化橡(xiang)膠 絕(jue)緣電阻率的測定(ding)》

GB/T 2439-2001《硫化橡膠(jiao)或熱塑性(xing)橡膠(jiao) 導電性(xing)能和耗散性(xing)能電阻率的(de)測定》

GB/T 12703.4-2010 《紡(fang)織品(pin)  靜電性能的評定  第４部分：電阻率(lv)》

GB/T 10064-2006_《測定固體絕緣(yuan)材料絕緣(yuan)電阻的(de)試驗方法》

操作方式：

1、電流先手動調零

2、調整測試電壓

3、旋轉電阻(zu)波蕩觀察數值

4、讀取電阻值

5、根據電阻(zu)值按以下公式求出(chu)（1）體積電阻(zu)率(lv)計算(suan)公式如下：

式(shi)中：PV——體積電阻率，單位為歐姆厘米(mi)（Ω.cm）；

RX——按測得的體積電阻，單位(wei)為歐姆（Ω）；

A——是(shi)被保護電極的有(you)效(xiao)面(mian)積，單位為平方(fang)米（m2）或（平方(fang)厘米（cm2））

h——試(shi)樣的平均厚度(du)，單位為米(m)或厘米（cm）

備注：A=19.635（cm2）

（2）表面電阻(zu)率計算(suan)：

表面電阻率計算公式如下(xia)：

式中：Ps——體積電阻率，單位為(wei)歐姆米（Ω.cm）；

RX——按測得的(de)表電(dian)阻(zu)，單位為歐(ou)姆（Ω）；

P——是被保護電(dian)極(ji)的有效周長，單位(wei)為米(mi)（m）或(huo)（厘米(mi)（cm））

g——兩電極之(zhi)間的距離，單(dan)位為米(m)或厘米（cm）

備注：P=15.708(cm) g=0.2(cm

配套的電極尺寸：

圓柱: 直徑50 mm

圓環: 外徑 75 mm ,內徑 55± 0.2 mm  厚度(du)10 高度(du)30

圓盤: 直徑100mm

屏蔽箱尺寸：20cm*20cm*9 cm  內部(bu)高度50mm

固體式(shi)樣尺寸要求測體積電阻(zu)(zu)率直徑大(da)于55mm（大(da)于電極內徑）  測表面積電阻(zu)(zu)直接大(da)于100mm， 低于此直徑大(da)小(xiao)需改(gai)電極

準確度(du): 準確度(du)優于下表(biao):

超出(chu)有效顯(xian)示范(fan)圍時誤差有可能增加)測試電流準確度(du)與電阻相同測試電壓準確度(du)為 10%

應用

 測量防靜(jing)電鞋、導電鞋的電阻值(zhi)

按照(zhao)(zhao)(zhao)國家標準(zhun)(zhun)(zhun)GB4386-84《防(fang)靜(jing)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)膠(jiao)底鞋(xie)（靴）、導(dao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)膠(jiao)底鞋(xie)（靴）電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)值(zhi)(zhi)(zhi)測(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)方(fang)(fang)(fang)法(fa)》防(fang)靜(jing)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)鞋(xie)的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)值(zhi)(zhi)(zhi)必(bi)須為0.5.×105Ω1.0×108Ω范圍(wei)(wei)內，導(dao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)鞋(xie)的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)值(zhi)(zhi)(zhi)必(bi)須不大于(yu)1.5X105歐姆.不僅制造(zao)廠(chang)在(zai)出廠(chang)時(shi)必(bi)須按這一標準(zhun)(zhun)(zhun)檢(jian)驗(yan)，合(he)(he)格(ge)后才(cai)能(neng)出廠(chang)，在(zai)工廠(chang)使用(yong)(yong)過程中(zhong)(zhong)也(ye)必(bi)須按這一標準(zhun)(zhun)(zhun)進行(xing)定(ding)(ding)期檢(jian)驗(yan)，合(he)(he)格(ge)后才(cai)能(neng)穿(chuan)用(yong)(yong)。   制造(zao)廠(chang)測(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)新(xin)鞋(xie)的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)值(zhi)(zhi)(zhi)時(shi)，應(ying)將(jiang)硫化后有新(xin)鞋(xie)放(fang)置(zhi)24小時(shi)以(yi)(yi)上(shang)(shang)，然(ran)后在(zai)測(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)所(suo)要(yao)求(qiu)的(de)(de)(de)(de)(de)溫度(du)、濕(shi)度(du)環境(jing)中(zhong)(zhong)放(fang)置(zhi)2小時(shi)以(yi)(yi)后才(cai)能(neng)進行(xing)測(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)。使用(yong)(yong)單位(wei)在(zai)定(ding)(ding)期檢(jian)測(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)時(shi)應(ying)將(jiang)鞋(xie)洗干凈，其(qi)溫濕(shi)度(du)的(de)(de)(de)(de)(de)要(yao)求(qiu)及(ji)(ji)放(fang)置(zhi)時(shi)間同上(shang)(shang)。測(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)環境(jing)要(yao)求(qiu)為：溫度(du)：10℃ ～ 40℃相(xiang)對濕(shi)度(du)為40% ～ 70%。 由(you)于(yu)HEST121型數字表面、體積電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)率(lv)測(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)定(ding)(ding)儀是內部同時(shi)測(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓和電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)，且直(zhi)接(jie)顯示出電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)值(zhi)(zhi)(zhi)，所(suo)以(yi)(yi)不必(bi)另外(wai)使用(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓表和電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)表以(yi)(yi)及(ji)(ji)計算電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)值(zhi)(zhi)(zhi)。通(tong)常測(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)試防(fang)靜(jing)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)鞋(xie)只(zhi)用(yong)(yong)106、107、108Ω檔(dang)，測(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)試完畢(bi)將(jiang)開關撥回104檔(dang)。根據(ju)上(shang)(shang)述測(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)試的(de)(de)(de)(de)(de)結果，根據(ju)標準(zhun)(zhun)(zhun)來確定(ding)(ding)被測(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)鞋(xie)是否(fou)合(he)(he)格(ge)或(huo)能(neng)否(fou)穿(chuan)用(yong)(yong)。    測(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)防(fang)靜(jing)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)材料(liao)的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)及(ji)(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)一般防(fang)靜(jing)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)材料(liao)的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)值(zhi)(zhi)(zhi)在(zai)105 Ω～1010 Ω左(zuo)右的(de)(de)(de)(de)(de)范圍(wei)(wei)內，其(qi)測(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極可(ke)(ke)采(cai)用(yong)(yong)三(san)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極或(huo)二(er)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極，其(qi)具體測(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)方(fang)(fang)(fang)法(fa)可(ke)(ke)參照(zhao)(zhao)(zhao)有關的(de)(de)(de)(de)(de)標準(zhun)(zhun)(zhun)或(huo)有關資料(liao)。測(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)計算機房(fang)用(yong)(yong)活(huo)動地(di)板(ban)的(de)(de)(de)(de)(de)系統(tong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)值(zhi)(zhi)(zhi)按照(zhao)(zhao)(zhao)國家標準(zhun)(zhun)(zhun)ＧＢ6650-86《計算機房(fang)用(yong)(yong)活(huo)動地(di)板(ban)技術(shu)條件(jian)》。采(cai)用(yong)(yong)該標準(zhun)(zhun)(zhun)的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極（也(ye)可(ke)(ke)用(yong)(yong)三(san)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極中(zhong)(zhong)的(de)(de)(de)(de)(de)主(zhu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極）測(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)。測(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)絕緣材料(liao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(率(lv)絕緣材料(liao)如(ru)塑料(liao)（聚(ju)乙稀，聚(ju)氯乙稀，尼龍等）橡膠(jiao)等的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)率(lv)很高(gao)，測(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)時(shi)應(ying)采(cai)取屏(ping)蔽(bi)措施，以(yi)(yi)免讀數不穩甚至(zhi)無法(fa)測(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)。測(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)時(shi)可(ke)(ke)采(cai)用(yong)(yong)三(san)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極。方(fang)(fang)(fang)法(fa)可(ke)(ke)參照(zhao)(zhao)(zhao)國家標準(zhun)(zhun)(zhun)GB1410。 測(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)及(ji)(ji)1014Ω以(yi)(yi)上(shang)(shang)超(chao)高(gao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)的(de)(de)(de)(de)(de)測(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)當測(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)超(chao)過1014Ω以(yi)(yi)上(shang)(shang)的(de)(de)(de)(de)(de)超(chao)高(gao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)時(shi),可(ke)(ke)以(yi)(yi)通(tong)過測(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)的(de)(de)(de)(de)(de)方(fang)(fang)(fang)法(fa),然(ran)后用(yong)(yong)歐定(ding)(ding)律(lv)求(qiu)出超(chao)高(gao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)值(zhi)(zhi)(zhi)。測(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)與測(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)的(de)(de)(de)(de)(de)方(fang)(fang)(fang)法(fa)基本(ben)相(xiang)同，

 例如(ru)：電流(liu)(liu)表頭(tou)顯示(shi)讀數(shu)為(wei)1.234，量程位(wei)置處在10－8，則電流(liu)(liu)為(wei) I=1.234×10-8  A

利用歐姆定律

   V

R= ---

   I

可以計算出電阻值。利用測量(liang)電流的(de)(de)方法可測量(liang)超過1014Ω以上的(de)(de)超高(gao)電阻1015～1018Ω。

本儀器(qi)既(ji)可測量超高電(dian)(dian)(dian)(dian)阻，又可測極微弱電(dian)(dian)(dian)(dian)流(liu)。采用了大規模集成電(dian)(dian)(dian)(dian)路以及技 術，使儀器(qi)體積(ji)小、重量輕、準確(que)度高。以數字液(ye)晶顯示(shi)電(dian)(dian)(dian)(dian)阻并同時(shi)直接顯示(shi)流(liu)過(guo)被測電(dian)(dian)(dian)(dian)阻的(de)電(dian)(dian)(dian)(dian)流(liu)。電(dian)(dian)(dian)(dian)阻量程從1×104Ω ～1×1018Ω， 電(dian)(dian)(dian)(dian)流(liu)測量范圍 為2 ×10-4A ～1 ×10-16A。機內測試(shi)電(dian)(dian)(dian)(dian)壓(ya)為DC10V、50V、100V、250V、500V、1000V。