DD北京北广精仪仪器设备有限公司 郑重声明:*
体积电阻率表面电阻率测试仪 型号:BEST-121
本仪器是既可测量高电阻,又可测微电流。采用了美国In公司的大规模集成电路以及技术,使仪器体积小、重量轻、准确度高。以双3.1/2 位数字直接显示电阻的高阻计和电流。量限从1×104Ω ~1×1018 Ω,是目前国内测量范围zui宽,准确度zui高的数字超高阻测量仪。电流测量范围为2×10-4 ~1×10-16A。机内测试电压为10/50/100/250/500/1000V任意可调。本仪器具有精度高、显示迅速、性好稳定、读数方便, 适用于防静电产品如防静电鞋、防静电塑料橡胶制品、计算机房防静电活动地板等电阻值的检验以及绝缘材料和电子电器产品的绝缘电阻测量。本仪器除能测电阻外,还能直接测量微弱电流。
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.
适用的主要标准:
GB/T 1410-2006 固体绝缘材料 体积电阻率和表面电阻率试验方法
GB 12014 防静电工作服
GB/T 20991-2007 个体防护装备 鞋的测试方法
GB 4385-1995 防静电鞋、导电鞋技术要求
GB 12158-2006 防止静电事故通用导则
GB 4655-2003 橡胶工业静电安全规程
GB/T 12703.4-2010 纺织品 静电性能的评定 第4部分 电阻率
GB/T 12703.6-2010 纺织品 静电性能的评定 第6部分 纤维泄漏电阻
GB 13348-2009 液体石油产品静电安全规程
GB/T 15738-2008 导电和抗静电纤维增强塑料电阻率试验方法
GB/T 18044-2008 地毯 静电习性评价法 行走试验
GB/T 18864-2002 硫化橡胶 工业用抗静电和导电产品 电阻极限范围
GB/T 22042-2008 服装 防静电性能 表面电阻率试验方法
GB/T 22043-2008 服装 防静电性能 通过材料的电阻(垂直电阻)试验方法
GB/T 24249-2009 防静电洁净织物
GB 26539-2011 防静电陶瓷砖 Antistatic ceramic tiles
GB/T 26825-2011 抗静电防腐胶
GB 50515-2010 导(防)静电地面设计规范
GB 50611-2010 电子工程防静电设计规范
GJB 105-1998-Z 电子产品防静电放电控制手册
GJB 3007A-2009 防静电工作区技术要求
GJB 5104-2004 无线电引信风帽用防静电涂料及风帽静电性能通用要求
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、测试
将被测试样用测量电缆线和导线分别与讯号输入端和测试电压输出端连接。 将测试电压选择开关置于所需要的测试电压档。 将“放电-测试”开关置于“测试”档,输入短路开关仍置于“短路”。对试样经一定时间的充电以后(视试样的容量大小而定,一般为15秒。电容量大时,可适当延长充电时间),即可将输入短路开关揿至“测量”进行读数,若发现指针很快打出满刻度,应立即揿输入短路开关,使其置于“短路”, 将“放电-测试”开关置于“放电”档,等查明原因并排除故障后再进行测试。 当输入短路开关置于测量后,如发现表头无读数,或指示很少,可将倍率开关逐步升高,数字显示依次为7、8、9、…直至读数清晰为止(尽量取仪表上1~10的那段刻度)。通过旋转倍率旋钮,使示数处于半偏以内的位置,便于读数。测量时先将RV/RS转换开关置于RV测量体积电阻,然后置于RS测量表面电阻。读数方法如下:表头指示为读数,数字显示为10的指数,单位W。用不同电压进行测量时,其电阻系数不一样,电阻系数标在电压值下方。将仪表上的读数(单位为兆欧)乘以倍率开关所指示的倍率及测试电压开关所指的系数(10V为0.01;100V为0.1;250V为0.25;500V为0.5;1000V为1)即为被测试样的绝缘电阻值。例如:读数为3.5′106W倍率开关所指系数为108,测量电压为100V,则被测电阻值为:3.5′106′108′0.1 =3.5′1013W。 在测试绝缘电阻时,如发现指针有不断上升的现象,这是由于电介质的吸收现象所致,若在很长时间内未能稳定,则一般情况下取接通测试开关后一分钟时的读数作为试样的绝缘电阻值。
一个试样测试完毕,即将输入短路揿键置于“短路”,测试电压控制开关置于“关”后,将方式选择开关拨向放电位置,几分钟后方可取出试样。对电容量较大的试样者需经1分钟左右的放电,方能取出试样,以免受测试系统电容中残余电荷的电击。。若要重复测试时,应将试样上的残留电荷全部放掉方能进行。
然后进入下一个试样的测试:为了操作简便无误,测量绝缘材料体积电阻(Rv)和表面电阻(Rs)时采用了转换开关。当旋钮指在Rv处时,高压电极加上测试电压。保护电极接地,当旋钮指在Rs处时,保护电极加上测试电压,高压电极接地。 仪器使用完毕,应先切断电源,将面板上各开关恢复到测试前的位置,拆除所有接线,将仪器安放保管好。
准备
使用前,面板上的各开关位置应如下:
a) 倍率开关置于灵敏度zui低档位置。
b) 测试电压开关置于“10V”处
c) “放电-测试”开关置于“放电”位置。
d) 电源总开关(POWER)置于“关”。
e) 输入短路揿键置于“短路”。
f) 极性开关置于“0”。
检查测试环境的湿度是否在允许的范围内。尤其当环境湿度高于80%以上时,对测量较高的绝缘电阻(大于10 11Ω及小于10-8 A)时微电流可能会导致较大的误差。
接通电源预热30分钟,将极性开关置于“+”,此时可能发现指示仪表的指针会离开“∞”及“0”处,这时可慢慢调节“∞”及“0”电位器,使指针置于“∞”及“0”处。
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、 技术参数
· 型 号 SB36固体(液体)体积电阻率及表面电阻率测试仪
· 额定电压 10 100 250 500 1000 准确度 ±5 %
· 电阻测量 1* 106~1* 1017准确度 ±10 % ±20 %
· 微电流测量 1* 105~1* 1014准确度 ±10 % ±20 %
· 外形尺寸/重量(MM /KG) 380W * 260D * 150H / 10 主要用途及特点:
· 适用于科研、工厂、学校、企业部门对绝缘材料、电工产品、电子设备以及元件的绝缘测量和高阻值兆欧电阻的测量也可用着微电流测量,是一种直读式和微电流两用仪器。
测试电压(V) 误 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、测试电压:
(V) 10V 50V 100V 250V 500V 1000V
档位 倍率 量限Ω 误差 量限Ω 误差 量限Ω 误差 量限Ω 误差 量限Ω 误差 量限Ω 误差
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
北广公司其它绝缘材料检测仪器:
BDJC-0-100KV 介电击穿试验仪
BDJC系列绝缘材料工频率介电击穿试验仪
BDJC系列电压介电强度试验仪器
BDJC系列 电压击穿试验仪
BDJC系列绝缘漆漆膜击穿强度试验仪
BDJC电容器纸工频电压击穿试验仪
BEST-121 体积表面电阻率测定仪
GDAT-A介质损耗测试仪/介电常数测试仪
GDAT-C新型介电常数介质损耗测试仪
BDH 耐漏电起痕试验仪
BDH-B耐电弧试验仪