FMC 组合式直流(高)电位差计
FMC组合式直流(高)电位差计产品介绍
FMC组合式直流(高)电位差计是一款精密测量仪器，主要用于直接测量直流电动势。该仪器采用补偿法原理，通过恒定的标准电动势与被测电动势相互比较，实现高精度测量。其工作电流为0.1毫安，每伏为10000欧姆，具有六个测量十进盘，测量范围从0.000001伏至2.311110伏，最小分度值可达1微伏。仪器内置三只电池盒，可使用1号干电池供电，标准工作电压为3V，可调范围为2.8~3.3V。FMC电位差计不仅适用于实验室环境，也可在工业现场进行直流电压、电流、电阻及功率的测量，配合分压箱使用可将测量上限扩展至600伏。146
FMC组合式直流(高)电位差计技术特性
该电位差计在18~22℃温度范围内工作时，相对湿度需低于80%，其误差允许极限值符合特定计算公式。当环境温度在15~30℃范围内变化时，每超出标准温度5℃引起的附加误差不超过基本误差的1/2。仪器采用高绝缘材料制造，线路与外壳间能耐受2000V交流电压的耐压试验。内置检流计灵敏度高，电流常数小于1×10⁻¹⁰A/mm，响应时间短于4秒，零位漂移控制在2μV/4小时内。仪器外形尺寸为500×250×170毫米，重量约8公斤，结构坚固且便于携带。149
FMC Modular DC (High) Potentiometer Product Introduction
The FMC modular DC (high) potentiometer is a precision instrument designed for direct measurement of DC electromotive force. Utilizing the compensation principle, it achieves high-accuracy measurements by comparing the unknown EMF with a stable reference voltage. With a working current of 0.1mA (10kΩ per volt), the device features six measurement decades covering a range from 1μV to 2.311110V. The instrument incorporates three battery compartments for 1.5V dry cells, operating at a standard 3V voltage adjustable between 2.8-3.3V. Beyond laboratory applications, it serves industrial field measurements of DC voltage, current, resistance and power, with measurement上限 extendable to 600V when used with voltage dividers. 617
FMC Modular DC Potentiometer Technical Features
This potentiometer maintains optimal performance at 18-22℃ with humidity below 80%, with error limits calculated by specified formulas. Temperature variations between 15-30℃ induce additional errors not exceeding half the basic error per 5℃ deviation. The high-insulation construction withstands 2000V AC withstand voltage tests between circuits and enclosure. Its integrated galvanometer offers exceptional sensitivity (<1×10⁻¹⁰A/mm), fast response (<4s) and minimal zero drift (<2μV/4h). The compact 500×250×170mm housing weighs approximately 8kg, ensuring portability without compromising durability. These characteristics make it suitable for diverse measurement scenarios requiring high precision and reliability. 4617
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电位差计
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① 箱 式 直 流 电 位 差 计
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序号
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型 号
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名 称
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测量或调整范围
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小步进
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准确度%
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仪器特点
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出厂价￥
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2-1
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UJ5a
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直流(低)电位差计
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0～20.1110mV
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0.1μV
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0.5
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普
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①普:
普通型,需外接检流计、工作电源、标准电池;
②池：
电池型，内附检流计、电池盒、基准电动势；
③环：
环保型，直接用市电。内附检流计、工作电源、基准电动势。无化学污染。
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2354
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2-2
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TJ6
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教学用(高)电位差计
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0～2.311V
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0.5mV
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0.1
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池
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980
1870
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2-3
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FMTJ6
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环
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2-4
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UJ9
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直流(高)电位差计
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0～1.31110V
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10μV
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0.02
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普
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2450
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2-5
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UJ24
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直流(高)电位差计
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0～1.61110V
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10μV
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0.02
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普
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2580
2880
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2-6
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FMUJ24
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10μV
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0.02
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环
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2-7
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UJ25
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直流(高)电位差计
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0～1.911110V
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1μV
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0.01
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普
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3680
4380
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2-8
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FMUJ25
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1μV
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0.01
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环
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2-9
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UJ27C
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直流(高)电位差计
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0～2.110V
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5μV
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0.1
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池
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980
1180
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2-10
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FMUJ27C
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环
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2-11
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UJ31
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直流(低)电位差计
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×1档: 0～17.1mV
×10: 0～171mV
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1μV
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0.05
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普
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1320
1580
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2-12
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FMUJ31
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环
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2-13
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UJ33a
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直流(高)电位差计
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×0.1档: 0～21.11mV
×1档: 0～211.1mV
×5档: 0～1.0550V
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1μV
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0.05
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池
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1320
1620
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2-14
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FMUJ33a
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环
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2-15
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UJ33b
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直流(高)电位差计
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×0.1档: 0～21mV
×1档: 0～210mV
×10档: 0～2.1V
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1μV
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0.05
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池
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1680
1980
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2-16
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FMUJ33b
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环
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2-17
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UJ36a
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直流(低)电位差计
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×0.2档: 0～46mV
×1档: 0～230mV
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10μV
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0.1
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池
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1050
1250
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2-18
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FMUJ36a
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环
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2-19
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UJ36
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直流(低)电位差计
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×0.2: 0～24.0mV
×1: 0～120mV
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5μV
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0.1
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池
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950
1150
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2-20
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FMUJ36
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环
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2-21
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FMUJ60
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直流(高)电位差计
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0～11.9999V
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0.1μV
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0.01
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环
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6000
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2-22
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87-1
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教学用(高)电位差计
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0～1.700V
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1mV
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0.2
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池
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830
1080
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2-25
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FM87-1
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环
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2-26
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FMA
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学生型(高)电位差计学生型(高)电位差计
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×0.1档: 0～21.10mV
×1档: 0～211.0mV
×10档: 0～2.110V
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1mV
100μV
10μV
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0.2
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池
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1180
1930
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2-27
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FMFA
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环
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2-28
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FMC
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组合式直流(高)电位差计
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0～2.311110V
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1μV
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0.01
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环
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4680
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