Emerson Exchange 365

In reply to Vicken:

Hi Vicken.

I'd like to join the conversation and I hope I might be able to help. From the description you shared, it seems possible that some or most of the problem might be due to bubbles of air in the juice. If this is the case, the best thing you can do to improve the accuracy is to increase the back pressure of the juice as it passes through the meter. If you have a valve downstream of the meter, try closing it some and see if the problem goes away. Pressure drop across the valve will increase making the pressure of the juice inside the meter higher. At higher pressure, any bubbles will shrink or disappear entirely. I can't promise you this will solve the problem entirely, but this technique has proven to be very effective many times in the past.

The orange and green lights are a good clue that this may be the problem and if you can access the diagnostic variable called "drive gain" this is another very good indicator of air bubbles. Every time air bubbles pass through the meter the drive gain will increase quickly. If it ever gets close to 100% drive gain, that is a sure sign you have a significant amount of air bubbles in the juice.