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ZX78直流多值電阻器

發布日期：2025-01-05
訪問次數：894
地址：上海寶山

ZX78直流多值電阻器为串连十进盘所组成的多值电阻器，两接线柱之间的电阻值可以通过改变开关电刷触头位置而使其改变，能方便地整机校验0.02级以下的电阻器及整机校验携带式直流单臂电桥等。还可用于工厂、学校和科研单位作电测和在直流电路中作精密调节电阻之用。本电阻器具有零电阻小、电阻变差小的优点

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ZX78直流多值電阻器

一、用途
本型直流电阻器为串连十进盘所组成的多值电阻器，两接线柱之间的电阻值可以通过改变开关电刷触头位置而使其改变，能方便地整机校验0.02级以下的电阻器及整机校验携带式直流单臂电桥等。还可用于工厂、学校和科研单位作电测和在直流电路中作精密调节电阻之用。本电阻器具有零电阻小、电阻变差小的优点。

ZX78直流多值電阻器
二、技術指標
1、電阻值調節範圍：0～111111.10Ω
2、各步進盤准確度：
3、電阻器的殘余電阻R0＝（10±2）mΩ；
4、電阻器的參考功率：0.05W；標稱使用功率：0.1W。
5、參考溫度：20±0.5℃；標稱使用溫度：20±5℃。
6、參考相對濕度：40％～60％；
标称相对湿度：25％～80％。
7、電阻器線路與外殼之間的絕緣電阻≥1×1010Ω。
8、電阻器線路與外殼之間，能經受頻率爲50HZ，電壓爲2000V的正弦波交流電壓，曆時1分鍾不擊穿。
9、外形尺寸：410×260×150mm。
10、重量：約5kg。

步進盤(Ω)

×104

×103

×102

×10

×1

×0.1

×0.01

准確度(%)

±0.05

±0.01

±0.05

±0.5

±5

誤差等級

0.005

0.01

0.05

0.5

上一篇：ZX74型直流電阻器

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