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UJ27C直流電位差計

發布日期：2025-01-05
訪問次數：904
地址：上海寶山

UJ27C直流電位差計为携带型直流电位差计，仪器内附晶体管放大检流计、标准电池和直流稳压电路，不需外加附件即可进行测量，适合在实验室、车间及野外工作

一、用途
UJ27C直流電位差計为携带型直流电位差计，仪器内附晶体管放大检流计、标准电池和直流稳压电路，不需外加附件即可进行测量，适合在实验室、车间及野外工作。
　　　1、能方便地以補償法原理測量直流電壓（或電動勢）。
　　　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、適合學校教學使用，可直接測量1.5V幹電池或2V蓄電池的電壓值。

UJ27C直流電位差計
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 、各主要指标见下表：
3 、外壳对线路绝缘电阻>100MΩ/500V。外壳对线路能承受频率为50HZ，正弦波交流电压1500V，历时1分钟作用不击穿。

倍率	有效量程	分辨率	基本誤差
×10	0~2.110V	500μV	Elim≤±(0.1%UX+100×10－6）V
×1	0~211.0mV	50μV	Elim≤±(0.1%UX+10×10－6）V
×0.1	0~21.10mV	5μV	Elim≤±(0.1%UX+1×10－6）V

4、仪器工作电源为50HZ、220V交流市电经稳压而得到的两组9V直流电源。它的供电部分是通过精密基准源MC1403输出，该元件为美国莫托洛拉公司产品，电压稳定性优于50PPm，温度系数优于30PPm/℃，当工作电压从9V~4.5V之间变化时，其输出电压恒定为2.5V。
5、內附檢流計靈敏度分粗、中、細、微4檔，電壓靈敏度爲5μV/1mm。阻尼時間小于5s。
6、外形尺寸；280mm×225mm×160mm
7、重量；<5kg

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