UJ33D/1数字电位差计
产品概述
UJ33D/1数字电位差计是一款采用数字化和智能化技术的精密测量仪器，适用于直流电压、电流、电阻及温度等多种物理量的测量。该产品结合传统工艺与现代技术，具有便携式设计、高精度测量和多功能应用等特点，可广泛应用于工矿企业、实验室及野外作业等场景。13
核心功能
该设备支持数字直读输出和测量电压值，输出标准电压信号可带负载，可直接校验各种低阻抗仪表。采用四端钮输出方式，有效消除小信号输出时测量导线产生的压降误差。内置精密基准源，无需外接标准电池，既避免环境污染，又简化了用户操作流程。此外，设备配备RS-232标准接口，便于与计算机通信，实现数据交互。24
技术参数
测量范围覆盖0-1999.9mV，最小分辨率达1μV，准确度等级为0.05%。工作电源采用8节1.5V干电池或外接9V直流电源，功耗低至0.6W。整机尺寸为310×240×170mm，重量约4kg，采用通用便携式机箱设计，内置电池盒便于携带。57
应用场景
特别适用于热电偶、传感器及变送器等一次仪表输出信号的精密检测，也可作为标准毫伏信号源直接校验各类工业仪表。通过转换功能，还可扩展用于直流电阻、电流、电功率及温度等参数的测量。915
Product Overview
The UJ33D/1 Digital Potentiometer is a precision measuring instrument that utilizes digital and intelligent technologies for DC voltage, current, resistance, and temperature measurements. Combining traditional craftsmanship with modern techniques, this portable device features high-accuracy measurement and multi-functional applications, making it suitable for industrial plants, laboratories, and field operations.13
Key Features
It supports direct digital reading of output and measured voltage values, with standard voltage signal output capable of driving loads to calibrate various low-impedance instruments. The four-terminal output design effectively eliminates lead resistance errors in small-signal measurements. The built-in precision reference source eliminates the need for external standard batteries, simplifying operation while being environmentally friendly. An RS-232 interface enables seamless computer communication for data exchange.24
Technical Specifications
The measurement range covers 0-1999.9mV with 1μV resolution and 0.05% accuracy. Powered by eight 1.5V dry cells or an external 9V DC supply, it consumes only 0.6W power. The compact design (310×240×170mm, 4kg) incorporates a built-in battery compartment for easy portability.57
Applications
Ideal for precision testing of signals from primary instruments like thermocouples, sensors, and transmitters. It can also serve as a standard millivolt signal source to calibrate industrial meters. Conversion functions extend its use to measure DC resistance, current, power, and temperature parameters.915
UJ33D/1数字电位差计
的详细介绍
直流信号负极性输出及温度测量的负温度显示仅限UJ33D-2，其余从零开始..
详细信息
量程 测量范围 准确度 小分辨率 负载能力
2V 0-1999.9mV ±（0.05%Ux+200μV） 100μV 2mA
200mV 0-199.99mV ±（0.05%Ux+20μV） 10μV 2mA
20mV 0-19.999mV ±（0.05%Ux+2μV） 1μV 2mA
75mV 0-74.999mV ±（0.05%Ux+6μV） 1μV 2mA
(k) -200-1300℃ ±（0.05%Tx+0.2℃） 0.1℃
(E) -200-900℃ ±（0.05%Tx+0.2℃） 0.1℃
(J) -200-1048℃ ±（0.05%Tx+0.2℃） 0.1℃
(S) -50-1768℃ ±（0.05%Tx+1℃） 0.5℃
(T) -200-385℃ ±（0.05%Tx+0.2℃） 0.1℃
直流信号输入输出量程 -10-1999.9mV
消耗功率 ＜0.6W
电源 1.5V 1号干电池8节或外接9V直流电源
外型尺寸 310mm×240mm×170mm
重量 ≤4kg
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