The output current of honeywell transmitter is greater than 20ma, what should I do if the meter shows check status?
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This post was last edited by zangdazhuang on 2011-9-11 22:52. How to deal with the check status displayed on the meter header when the output current of honeywell transmitter is greater than 20ma?
The transmitter is in the protection state and the verification state has not exited?
Is there something wrong with the configuration? If it exceeds 20MA, it means it is out of range. Change the extended range slightly and see if the chesk status still appears. If it is normal, it means your actual result is out of range. Check the on-site measurement situation to see if it is out of range, whether it has been migrated, etc. . .
first: Close the corresponding sampling port of the transmitter to make the transmitter offline (detached from the process medium). For example: Measure the positive pressure of the pressure transmitter, close the root sampling valve, and then open the drain valve. The pressure sensing part of the transmitter is connected to the atmosphere to see if the display returns to zero. If it returns to zero, it means that the transmitter is not faulty, but is producing overpressure. This can be solved by expanding mass production. If it does not return to zero, the transmitter may be configured improperly (for example, negative migration is set) or the diaphragm may be damaged. Secondly: Check Status is displayed in the header, which may be caused by the previous problem. Eliminating the previous problem will solve it naturally. Of course, you can also read the explanation of Check Status in the manual and then decide how to deal with it.
Stop the power supply of the transmitter and then put it back on for a look.
What does it mean that the verification status has not exited? Can you explain in detail? A HONEYWELL STD110 used in our factory always displays check status (range -200Pa-200Pa). I don’t know how to clear it! Solve
It's useless. It keeps showing check status and can't be eliminated.
I have never used Honeywell. We use Yamatake-Honeywell. Judging from the model you mentioned, it should be similar. As my friend mentioned above, if possible, take the transmitter offline and connect it to the atmosphere (pressure change or differential change). Check the output. If it can be reset to zero, it should be fine. You should have a communicator on hand. When the transmitter is online (especially under abnormal circumstances), you can directly check its input pressure or differential pressure to see if it exceeds the range.
Turn off the power and check. This verification status has not exited.