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ZX17-2型旋轉式交直流電阻箱

發布日期：2025-01-05
訪問次數：918
地址：上海寶山

ZX17-2型旋轉式交直流電阻箱价格实惠，ZX17a旋转式交直流电阻箱在交流或直流电路中作可调电阻用，也可作电桥桥臂使用，是电学测量和电学实验中常用的仪器。电阻箱适用于周围空气温度＋5～＋45℃及相对湿度小于80%的环境下使用

訂購留言

ZX17-2型旋轉式交直流電阻箱主要技術指標

1、調整範圍

ZX17-1为（0～9）（ 0.1+1+10+100+1000+10000）Ω

ZX17a为（0～10）（0.1+1+10+100+1000+10000）Ω

2、二者的額定功率爲0.5W，各盤電阻允許流過的電流見表1：

步進Ω	10000	1000	100	10	1	0.1
電流A	0.007	0.022	0.07	0.22	0.7	1

3、電阻箱的准確度：在溫度範圍:15℃～25℃、濕度範圍≤80%

的條件下，ZX17-1型交直流電阻箱誤差符合表2規定：

步進Ω	10000	1000	100	10	1	0.1
誤差%	0.1%	0.1	0.2	0.5	2	5

ZX17-2型旋轉式交直流電阻箱誤差符合表3規定：

步進Ω	10000	1000	100	10	1	0.1
誤差%	0.1	0.1	0.2	0.5	2	5

4、零值電阻：30±5mΩ，變差小于2mΩ。

5、零值電感不超過2微亨。

6、電阻箱可在0—10kHz音頻範圍使用。因頻率引起變差小于0.1%。

7、電阻箱時間常數不大于表4所列數據：

步進Ω	10000	1000	100	10	1	0.1
時間常數μs	3	0.75	0.15	0.15	0.25	1

8、電阻箱電氣線路與屏蔽間能承受頻率爲50赫茲，2000伏交流電電壓的作用，曆時1分鍾不擊穿。

9、電阻箱電氣線路與屏蔽絕緣電阻不小于1000兆歐。

上一篇：ZX35/ZX36旋轉式直流電阻箱

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