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UJ31直流電位差計

發布日期：2025-01-05
訪問次數：955
地址：上海寶山

UJ31直流電位差計，按照中华人民共和国行业标准JB/T8611-1997《直流电位差计》和IEC523—75《直流电位差计》标准所规定的有关0.05级电位差计技术要求制造。
UJ31为携带式低电势直流电位差计。仪器内附电子指零仪和工作电池，可在实验室、车间现场及学校使用

訂購留言

UJ31直流電位差計，按照中華人民共和國行業標准JB/T8611-1997《直流電位差計》和IEC523—75《直流電位差計》標准所規定的有關0.05級電位差計技術要求制造。

UJ31直流電位差計为携带式低电势直流电位差计。仪器内附电子指零仪和工作电池，可在实验室、车间现场及学校使用。

一、用途
1、能方便地以補償法原理測量直流電壓（電動勢），如果配備標准電阻、過渡電阻也能對直流電阻、電流進行測量。
2、儀器能輸出標准電壓，供各種毫伏表、電子電位差計進行刻度校正。
3、配合各種測量溫度的熱電偶，能快速而准確地測量溫度，是熱工測量上常備的測量工具。
二、主要技術指標
1 、仪器使用条件；
      a、温度参考值；20±2℃
      b、温度标称使用范围；5~35℃
      c、湿度参考值；40％~60％
      d、湿度标称使用范围；25％～80％
2 、各主要指标见表1：
3 、外壳对线路绝缘电阻RJ>100MΩ/500V。
4、外壳对线路能承受频率为50HZ，正弦波交流电压500V，历时一分钟作用而不击穿。
5、仪器工作电压1.5V（内附五节1.5V 1号干电池并联供电）。
6、外形尺寸；320mm×260mm×160mm
7、重量；<4.5kg

量程

因數

有效量程

分辨率

基本誤差

×10

0~211.0mV

10μV

≤±(0.05%UX+5μV)

×1

0~21.10mV

1μV

≤±(0.05%UX+0.5μV)

8、將“標准－未知”扳鍵開關扳向“未知”，調節3個測量盤，使檢流計指零。未知電壓（或電動勢）值爲測量示值乘以倍率。
9、作訊號輸出時，按上述2、4、5、6、7條步驟對好“標准”後，將“測量－輸出”開關置于“輸出”，“標准－未知”開關扳向“未知”，在“未知”端可輸出標准電動勢（不能輸出電流）。輸出的電動勢值爲讀書盤示值乘以倍率。
10、在測量過程中若變換倍率，則需要按第七條步驟重新“對標准”。
11、測量進行過程中，隨著電池消耗，工作電流將有變化，所以連續使用較長時間，應經常校對“標准”，使測量准確。

上一篇：UJ34A直流電位差計

下一篇：UJ27C直流電位差計

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