2013-09-05 07:47:03

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西门子B1027万用表

[ 2022-07-30 13:53:45 | 作者: 牛犊 ]
西门子B1027万用表(Norma DM940),产于上世纪80年代末,11年前看过拆解印象深刻,有幸找到一台,成色非常不错,原厂胶套很软,手感出色。

特意买了GP 9V锂电池(没有漏液困扰),完美开机!拆电池盖需要技巧,熟练后很容易。各档位流畅,应该几十年没校准过,于是拿出LTZ1000基准看一下精度(11° 6位半标定7.06519V),表显7.065v!只能用震惊形容!一字不差。

测了几个电容也非常准,电阻测的金封VHD200T 1K000,同样一字不差。温度档标识St1=Mo St2=Pt,并不是常见的K型电偶,决定试试PT100,网购了Heraeus PT100 M310A铂热电阻,果然可以显示温度,但和实际差整10°,不知是不是模式不对,尝试切换St1到St2,一直没成功。

可惜原配表笔不在了,同样找了个古董美产安捷伦34132-37904表笔,虽然未拆封,但毕竟16年了,氧化非常严重,表笔联通都有问题,线阻大的离谱,用砂纸打磨了很久才恢复正常。

11年前中的毒:来个绝版的 B1027西门子万用表拆解
http://bbs.mydigit.cn/read.php?tid=252696

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[最后修改由 牛犊, 于 2022-08-08 13:30:16]
评论Feed 评论Feed: http://www.playcase.com/blog/feed.asp?q=comment&id=573

View Mode: 显示全部 | 评论: 3 | 引用: 0 | 排序 | 浏览: 337
引用 Guest20220801*
[ 2022-08-01 14:11:36 ]
这就对了,玩玩健康的玩具,顺便也让我开开眼界 [yes]

Re:感谢支持!再接再厉。
[最后修改由 牛犊, 于 2022-08-02 09:57:08]
引用 碗碗*
[ 2022-08-03 16:52:42 ]
加个微信吧
引用 mark2000*
[ 2022-08-26 18:45:20 ]
家里是不是都放不下了 [lol] [lol] [lol]

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