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ZX82A直流單臂電橋檢定標准電阻器

發布日期：2025-01-05
訪問次數：812
地址：上海寶山

ZX82A直流單臂電橋檢定標准電阻器按照中华人民共和国行业标准JB/T8225-99《实验室直流电阻器》所规定的技术条件制造。符合标准IEC477－74《实验室直流电阻器》所规定的技术要求。用于检定精度0.05级以下的单臂电桥。也可作为0.01级直流电阻器使用

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ZX82A直流單臂電橋檢定標准電阻器按照中華人民共和國行業標准JB/T8225-99《實驗室直流電阻器》所規定的技術條件制造。符合標准IEC477－74《實驗室直流電阻器》所規定的技術要求。用于檢定精度0.05級以下的單臂電橋。也可作爲0.01級直流電阻器使用。儀器包括兩個獨立系統，即指零儀系統與標准電阻系統，可同時使用和單獨使用。

ZX82A直流單臂電橋檢定標准電阻器

1、標准電阻系統：

a、可調電阻範圍爲0.01～11111.1Ω，

殘余電阻R₀ = (10±2）mΩ。

步进盘（Ω） ×1000 ×100 ×10 ×1 ×0.1 ×0.01

准确度（％） 0.01 0.01 0.02 0.1 1 5

功率额定使用功率0.05W，大使用功率0.1W

b、固定值標准電阻：

电阻值（Ω） 1 10 100 1000 5000 10⁴ 5×10⁴ 10⁵ 5×10⁵ 10⁶ 10⁷ 准确度（％） 0.1 0.02 0.01 0.01 0.01 0.01 0.01 0.01 0.02 0.05 0.2功率 0.05W………………………………… 0.05W 50V……………….50V 2、指零仪系统主要参数：

a、电压灵敏度：2μV/ mm

b、阻壓時間：<4秒

c、指零儀電源：9V（6節1號幹電池串連）

3、參考溫度：20℃±0.5℃；

4、標稱使用溫度：20℃±5℃

5、使用環境相對濕度：≤80％

6、导电线路与外壳之间的绝缘电阻≥500MΩ；

7、電阻器線路與外殼間的試驗電壓、指零儀線路外殼間的試驗電壓分別能承受頻率50H_Z 、正弦波交流電壓2000V、500V，曆時1分鍾不擊穿；

8、外形尺寸：280mm×200mm×130mm

9、重量：約4kg

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