UJ33b直流(高)电位差计
产品概述
UJ33b直流（高）电位差计是一款高精度便携式测量仪器，专为实验室、工业现场和高校教学场景设计。该仪器基于电位补偿原理，能够直接测量直流电势及热电偶热电势，配合标准电阻还可扩展至直流电流、电阻等参数的测量。其核心特点是采用内附晶体管放大指零仪和不饱和标准电池，确保温度系数小且稳定性优异，在0~35℃环境温度下仍能保持可靠性能。126
技术特性
仪器提供三档倍率选择（×0.1/×1/×10），覆盖10μV~2.110V的宽量程，最小分辨力达1μV，基本误差限为±0.05%读数+0.5μV。工作电源采用4节1号干电池与2节6F22叠层电池组合供电，具有环保便携特性。机身采用耐冲击结构设计，尺寸为310×240×160mm，重量约5kg，符合野外作业需求。内置检流计灵敏度可达1×10⁻⁸A/mm，并具备50Hz/500V耐压能力，确保工业环境下的稳定工作。51117
应用场景
该设备特别适用于热电偶标定、电极电位分析、霍尔效应磁场测量等科研实验，同时能对毫伏表、电子电位差计等工业仪表进行快速校验。在高校物理化学实验中，其×10档位（0-2.110V）可直接用于电源内阻测定和酸碱度检测，操作时通过补偿法原理实现无损耗测量，避免传统电压表分流误差。62122
Product Overview
The UJ33b DC (High) Potentiometer is a precision portable measuring instrument designed for laboratory, industrial field, and academic applications. Operating on the null-balance compensation principle, it directly measures DC EMF and thermocouple signals, with expandable capabilities for current and resistance measurements when paired with standard resistors. Its integrated transistorized null detector and unsaturated standard cell ensure minimal temperature drift and outstanding stability, maintaining reliability within 0-35℃ operating conditions. 1410
Key Features
With three range multipliers (×0.1/×1/×10), the device covers 10μV~2.110V measurement span at 1μV resolution, featuring ±0.05%rdg+0.5μV basic accuracy. The dual-power system combines 4×R20 and 2×6F22 batteries for field operation. Its 310×240×160mm rugged chassis (5kg weight) incorporates a high-sensitivity galvanometer (1×10⁻⁸A/mm) and withstands 500V/50Hz insulation tests, suitable for harsh industrial environments. 51215
Typical Applications
Ideal for thermocouple calibration, electrode potential analysis, and Hall-effect experiments in research labs, it also serves as a portable calibrator for millivolt meters and industrial potentiometers. In university settings, the ×10 range enables direct battery internal resistance measurements and pH value detection through its non-loading measurement methodology, eliminating shunt errors caused by conventional voltmeters. 61920
UJ33b直流(高)电位差计
的详细介绍
UJ36a直流电位差计
不需外加附件便可直接测量直流电势及各种热电偶的热电势,配以标准电阻,可测量直流电流、电阻,是工矿企业、实验室和野外现场测量用的精密仪器.有环保型(市电供电)和普通型可选择.
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主要技术参数及性能
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型号
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测量范围
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准确度等级
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检流计
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标准电池
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UJ33a
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×5:0～1.0550V;×1:0～211.0mV;×0.1:0～21.10mV
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0.05级
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内附
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内附
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UJ33b
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×10:0～2.110V;×1:0～211.0mV;×0.1:0～21.10mV
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UJ36a
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×1:0～230mV;×0.2:0～46.0mV
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0.1级
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