There are several units using the Brown protocol; is it possible to convert them to the HART protocol by replacing the circuit board?
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Can the EJA communication protocol be implemented by replacing the circuit board?
You can give it a try – buy a few circuit boards from Chuanyi and see; I think it will work definitely.
This is possible; just replace the communication module part
Try using an existing table and see if there are results in two days
It should be possible, but Hart’s circuit boards aren’t sold separately, unless you already have them.
Sure, we have done it before; we sent the form back to the manufacturer and they took care of it for us.