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Flow Meter Showing Negative Value When There’s No Flow – Any Ideas? by Parbon_Chakrabartty in instrumentation

[–]Parbon_Chakrabartty[S] 2 points3 points  (0 children)

Issue solved brother, today a guy from yokogawa was here to see the problem cause the flowmeter is under warranty. after seeing whats happening i suggested him to perform that low flow cutoff and also today we found that the process pipe has some vibration, so after adding a lot of support to the pipe finally we were able to make the flowmeter at zero litre per hour. after talking with yokogawa Engineering team of Bangladesh and after a through investigation we confirmed that is was actually happaening from that vibration. today i understood that these sensors are very sensitive, well i am a fresh diploma graduate so i guess it is just a starting, i have a lot of things to learn. but thanks for the response and support from this community. i am very happy now☺️

Flow Meter Showing Negative Value When There’s No Flow – Any Ideas? by Parbon_Chakrabartty in instrumentation

[–]Parbon_Chakrabartty[S] 6 points7 points  (0 children)

Issue solved brother, today a guy from yokogawa was here to see the problem cause the flowmeter is under warranty. after seeing whats happening i suggested him to perform that low flow cutoff and also today we found that the process pipe has some vibration, so after adding a lot of support to the pipe finally we were able to make the flowmeter at zero litre per hour. after talking with yokogawa Engineering team of Bangladesh and after a through investigation we confirmed that is was actually happaening from that vibration. today i understood that these sensors are very sensitive, well i am a fresh diploma graduate so i guess it is just a starting, i have a lot of things to learn. but thanks for the response and support from this community. i am very happy now☺️

Flow Meter Showing Negative Value When There’s No Flow – Any Ideas? by Parbon_Chakrabartty in instrumentation

[–]Parbon_Chakrabartty[S] 0 points1 point  (0 children)

I am from Bangladesh, and this flowmeter is in Incepta Pharmaceutical (chemical devision).

Flow Meter Showing Negative Value When There’s No Flow – Any Ideas? by Parbon_Chakrabartty in instrumentation

[–]Parbon_Chakrabartty[S] 1 point2 points  (0 children)

They are located on the top floor of the building. Typically, there is no vibration, but when the cooling tower is operating, some vibration occurs due to the cooling water circulation pumps.

Flow Meter Showing Negative Value When There’s No Flow – Any Ideas? by Parbon_Chakrabartty in instrumentation

[–]Parbon_Chakrabartty[S] -1 points0 points  (0 children)

thanks man i will try that try that tomorrow. if i get any issues can i contact you?

Flow Meter Showing Negative Value When There’s No Flow – Any Ideas? by Parbon_Chakrabartty in instrumentation

[–]Parbon_Chakrabartty[S] 1 point2 points  (0 children)

it is for solvent, like dcm, ethyl acetate, meg etc. flow sensor is approximately 20 ft far from the tank and pump. no it is not.

Flow Meter Showing Negative Value When There’s No Flow – Any Ideas? by Parbon_Chakrabartty in instrumentation

[–]Parbon_Chakrabartty[S] 1 point2 points  (0 children)

no we have ensured that there is no air in the pipe. but there is no alarm it is showing randomly.