I have a question

2009-02-05View Original

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When looking at the index table, I saw that the signal type is IS, 4–20mA; usually it’s just 4–20mA. So what does IS, 4–10mA mean? Is it related to the explosion-proof area?

Reply #22009-02-05

IS generally doesn’t have any special meaning, right?

Reply #32009-02-05

:L From what I found on Baidu, it means intrinsically safe; in other words, this entire area needs to be intrinsically safe and explosion-proof. . . Looking at these English abbreviations is really frustrating; sometimes they just appear out of nowhere. . .

Reply #42009-02-05

I don’t think it makes any sense, :(

Reply #52009-02-05

IS stands for intrinsically safe, which means that the signals being transmitted enter and exit the explosion-proof area.

Reply #62009-02-05

IS (Intrinsically Safe) means inherent safety

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