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[供應(yīng)]橡膠塑料體積電阻率測試儀
產(chǎn)地：北京市房山區(qū)經(jīng)濟技術(shù)開發(fā)區(qū)顧八路1號
更新時間：2024-11-25 09:57:31
有效期：2024年11月25日 -- 2025年2月22日
已獲點擊：333
電阻、電流雙顯示
性能好穩(wěn)定、讀數(shù)方便
所有測試電壓（100/250/500/1000V）?測試時電阻結(jié)果直讀，免去老式高阻計在不同測試電壓下或不同量程時要乘以系數(shù)等使用不便的麻煩，使測量超高電阻就如用萬用表測量普通電阻樣簡便。
既能測超高電阻又能測微電流
橡膠塑料體積電阻率測試儀（ZST-121）
符合標準：
GB1410《固體電工絕緣材料絕緣電阻、體積電阻系數(shù)和表面電阻試驗方法》
ASTM D257《絕緣材料的直流電阻或電導試驗方法》
一、概述
本儀器既可測量高電阻，又可測微電流。采用了美國In公司的大規(guī)模集成電路,使儀器體積小、重量輕、準確度高。以雙3.1/2 位數(shù)字直接顯示電阻的高阻計和電流。量限從1×104Ω～1×1018 Ω，是目前國內(nèi)測量范圍zui寬，準確度zui高的數(shù)字超高阻測量儀。電流測量范圍為2×10-4 ～1×10-16Ａ。機內(nèi)測試電壓為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、計算機房防靜電活動地板等電阻值的檢驗以及絕緣材料和電子電器產(chǎn)品的絕緣電阻測量。本儀器除能測電阻外，還能直接測量微弱電流。
二、主要特點
電阻測量范圍寬 1×104Ω～1×1018Ω
電流測量范圍為 2×10-4Ａ～1×10-16Ａ
體積小、重量輕、準確度高
電阻、電流雙顯示
性能好穩(wěn)定、讀數(shù)方便
所有測試電壓(100/250/500/1000V) 測試時電阻結(jié)果直讀，免去老式高阻計在不同測試電壓下或不同量程時要乘以系數(shù)等使用不便的麻煩，使測量超高電阻就如用萬用表測量普通電阻樣簡便。
既能測超高電阻又能測微電流
三、技術(shù)指標
1、電阻測量范圍： 0.01×104Ω～1×1018Ω。
2、電流測量范圍為： 2×10-4A～1×10-16A
3、雙表頭顯示： 3.1/2位LED顯示
4、內(nèi)置測試電壓： 100V、250、500、1000V
5、基本準確度：1% (*注)
6、使用環(huán)境：溫度：0℃～40℃，相對濕度<80%
7、機內(nèi)測試電壓： 100/250/500/1000V 任意切換
8、供電形式： AC 220V，50HZ，功耗約5W
9、儀器尺寸： 285ｍｍ× 245ｍｍ× 120 mm
10、質(zhì)量：約2.5KG
四、工作原理
根據(jù)歐姆定律，被測電阻Rx等于施加電壓V除以通過的電流I。傳統(tǒng)的高阻計的工作原理是測量電壓V固定，通過測量流過取樣電阻的電流I來得到電阻值。從歐姆定律可以看出，由于電流I是與電阻成反比，而不是成正比，所以電阻的顯示值是非線性的，即電阻無窮大時，電流為零，即表頭的零位處是∞，其附近的刻度非常密，分辨率很低。整個刻度是非線性的。又由于測量不同的電阻時，其電壓V也會有些變化，所以普通的高阻計是精度差、分辨率低。
本儀器是同時測出電阻兩端的電壓V和流過電阻的電流I，通過內(nèi)部的大規(guī)模集成電路完成電壓除以電流的計算，然后把所得到的結(jié)果經(jīng)過A/D轉(zhuǎn)換后以數(shù)字顯示出電阻值，即便是電阻兩端的電壓V和流過電阻的電流I是同時變化，其顯示的電阻值不象普通高阻計那樣因被測電壓V的變化或電流Ｉ的變化而變，所以，即使測量電壓、被測量電阻、電源電壓等發(fā)生變化對其結(jié)果影響不大，其測量精度很高()，從理論上講其誤差可以做到零，而實際誤差可以做到千分之幾或萬分之幾。
典型應(yīng)用
1．測量防靜電鞋、導電鞋的電阻值
2、測量防靜電材料的電阻及電阻率
3、測量計算機房用活動地板的系統(tǒng)電阻值
4、測量絕緣材料電阻(率)
5、光電二極管暗電流測量
6、物理,光學和材料研究
標準配置：
1、測試儀器：1臺
2、.電源線：1條
3、測量線：3根（屏蔽線、測試接線、接地線）
4、使用說明書：1份
備注：
本儀器配不同的測量電極（夾具）可以測量不同材料（固體、粉體或液體）的體積電阻率和表面電阻率或電導率，*符合國家標準GB1410－2006固體電工絕緣材料絕緣電阻、體積電阻系數(shù)和表面電阻試驗方法，ASTM D257 絕緣材料的直流電阻或電導試驗方法 等標準要求。
Volume surface resistance tester (ZST-121)
Meet the standard:
GB1410 "solid electrical insulation materials insulation resistance, volume resistivity and surfaceresistance test method"
DC resistance or conductance of insulating materials test method "ASTM D257"
One, overview
This instrument can measure high resistance, and micrometer current. Using large scale integrated circuit American In company, so that the instrument has the advantages of small volume, light weight, high accuracy. High resistance meter and current resistance showing withdouble 3.1/2 digit. Range from 1 x 104 to 1 x 1018 Omega Omega, is currently the most widemeasuring range, digital with the highest accuracy of ultra high resistance measuring instrument. The current measurement range of 2 ~ 1 * 10-16A * 10-4. The built-in test voltage of 100/250/500/1000V adjustable. The instrument has high precision, good stability, showing rapid,convenient for reading, insulation resistance measurement in anti-static products such as anti-static shoes, anti-static plastic and rubber products, anti static floor computer room inspectionsuch as value of resistance and insulation materials and electronic products. In addition to the instruments can measure resistance, but also the direct measurement of weak current.
Two, the main features
Resistance measurement range is wide 1 * 104 ~ 1 * 1018 Omega Omega
Current measuring range is 2 * 10-4A to 1 * 10-16A
Small volume, light weight, high accuracy
Resistance, current double display
Good performance stability, easy reading
All voltage test (100/250/500/1000V) results when testing the resistance direct reading, from oldhigh resistance meter in different test voltage or different range should be multiplied by the coefficient etc. use inconvenience trouble, ultra high resistance as measured with a multimetercommon resistance like simple measurements enable.
Not only can measure high resistance and current super micrometer
Three, technical indicators
1, resistance measurement range: 0.01 * 104 * 1018 Omega Omega - 1.
2, the current measuring range: 2 * 10-4A to 1 * 10-16A
3, double headers: 3.1/2 bit LED display
Built in 4, the test voltage: 100V, 250, 500, 1000V
5, basic accuracy: 1% (note)
6, the use of the environment: temperature 0 to 40 DEG C, relative humidity <80%
7, the built-in test voltage: 100/250/500/1000V arbitrary switching
8, the power supply forms: AC 220V, 50HZ, power consumption is about 5W
9, instrument size: 285mm x 245mm x 120 mm
10, quality: about 2.5KG
Four, the principle of work
According to Ohm's law, the resistance being measured Rx is equal to the applied voltagedivided by current V by I. The working principle of the high resistance meter is the traditionalmeasuring voltage V fixed, by measuring the current flowing through the sampling resistor I toobtain the resistance value. From Ohm's law can be seen as the current I is inversely proportional to the resistance, but not proportional, so is nonlinear resistive display value, i.e.,infinite resistance, current is zero, i.e. zero at the header is infinity, scale near the very dense,with a low resolution. The scale is nonlinear. Because the resistance measurement of differentvoltage, the V will also be some changes, so the high resistance of ordinary gauge is poor accuracy and low resolution.
This instrument is the current flowing through the resistor V and a voltage across the resistor Imeasured at the same time, the large scale integrated circuit internal to complete the calculation of voltage divided by current, then put the results obtained after A/D conversion to digital displayresistance, even current voltage V and the flow resistance at both ends of the I is changed at the same time. The resistance of the display value is not like an ordinary high resistance meterthat due to changes in the voltage to be measured changes in V or I current and change, so,even if the measure voltage, measure resistance, power supply voltage change has little influence on the results, the measuring accuracy is very high (patent), theoretically the error can do zero, while the actual error can do a few thousandths or very few.
Typical applications
1 resistance measurement of anti-static shoes, conductive shoes value
2, measurement of anti electrostatic material resistance and resistivity
3, measurement of computer room with movable floor system resistance value
Insulation resistance 4, measurement (rate)
5, photoelectric diode dark current measurement
6, physics, optics and material research
Standard configuration:
1, test equipment: 1 sets
2, the power line: 1.
3, measuring line: 3 (shielding wire, test wiring, grounding wire)
4, instructions for use: 1
Note:
The apparatus with different measuring electrode (fixture) can measure different materials(solid, powder or liquid) of the volume resistivity and surface resistivity or conductivity, fully meet the national standard GB1410 - 2006 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 the standard requirements.
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