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嗨,我们刚刚买了一台34461数字万用表。
我正在尝试使用PT1000进行温度测量。 令我惊讶的是,我无法将R0的设置增加到100欧姆以上。 这可以解决吗? 亲切的问候,汤姆 以上来自于谷歌翻译 以下为原文 Hi, we just bought a 34461 Digital Multimeter. I'm trying to do a temperature measurement using a PT1000. To my astonishment I am not able to increase the setting of R0 above 100 ohms. Can this be solved? Kind regards, Tom |
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2个回答
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嗨Tom,34461A仅支持PT100 RTD(0C时为100欧姆)。
因此,它允许将R0设置为80-120欧姆。 目前还没有计划支持额外的RTD。 以上来自于谷歌翻译 以下为原文 Hi Tom, The 34461A only supports the PT100 RTD (100 ohms at 0C). As such, it allows the setting of R0 for 80 - 120 ohms. There are no plans to support additional RTDs at this time. |
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子虚道人 发表于 2018-12-25 16:45 我想这也是我的问题的答案。 我打算利用我已经为自己制作的一种热敏探头。 我试过的那个没有用,因为它是一个10k设备。 太糟糕了,仪表的灵活性无法进一步提高。 我通过将它们装入带有热环氧树脂的铝塞中来制造探针。 是否有任何特定的Thermister标识可以让我自己进行探测。 探测器的价格对于从口袋里买单的小家伙来说有点疯狂。 B部分:是否允许延长热敏电阻上的电缆进行调整,并用于调整较长电线的电阻增加? 以上来自于谷歌翻译 以下为原文 I guess this was the answer to my question as well. I was planning to utilized one of the thermister probes I have already made for myself. The one I tried didn't work because it is a 10k device. It's too bad that flexibility of the meter can't be enhanced even more. I make the probes by potting them into a aluminum slug with thermo epoxy. Is there any specific Thermister identification that would allow me to make the probe for myself. The price on the probe is a little crazy for the little guy paying for it out of his pocket. Part B: is the adjustment to allow the cable on the thermister to be extended, and used to adjust for the increase in resistance of the longer wire? |
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