Can the Rosemount 375 output a 4–20 MA signal?
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This post was last edited by liuyiping111 on 2011-3-14 at 11:14. I would like to ask everyone: Can the Rosemount 375 generate a 4–20 MA signal? If so: How exactly is it done?
Damn. It’s not a standard instrument; it’s just a digital communication terminal. It can’t even receive signals of 4–20mA, let alone output any signals.
This post was last edited by Ah Hai on 2011-3-14 at 13:11. It’s possible to do this, as long as your instrument supports the HT protocol. There is a circuit testing option that includes 1) instrument setup, 2) instrument diagnosis and maintenance, 3) circuit testing. If you’re not sure how to use it, you can refer to the Rosemount transmitter manual; it basically involves steps 1 and 2
Let me correct a misconception: what the original poster asked was whether 375 could deliver power, and the answer confirmed that it couldn’t. You are referring to loop testing; the 375 can adjust the output current of the transmitter connected via HART control, rather than the output of the 375 itself. Also, I’m puzzled by LZ’s claim that the BT200 can output 4–20mA; I’ll go and verify it.
I’ve asked; the BT200 is the same as the 375 – it only performs circuit testing, and it cannot be separated from the transmitter, meaning it cannot be operated without power supplied to the transmitter
Neither 375 nor BT200 is capable of outputting a milliampere signal.
Reply to 6# Qinxin He: I agree with you!