07-05-2017 07:24 AM - edited 07-05-2017 07:26 AM
Hi,
I'm new at labview and I am working with Gems hall effect flow sensor.
I connected the sensor to the DAQ according to the manual attached, and I have a labview code to measure the flow rate and the amount of fluid passed through the sensor but the readings are incorrect.
Could you please help me with the code.
Kindest regards
07-05-2017 08:02 AM - edited 07-05-2017 08:06 AM
Hi samar,
in which way are your readings incorrect?
Can you show typical input signal data and their expected result?
Are the results always wrong or only for higher flow rates?
What's the purpose of the yellow-green wire between pin 11&16?
07-05-2017 08:05 AM - edited 07-05-2017 08:06 AM
Hi GerdW,
I tried calibrating the flow sensor with flowing water and the amount of the liquid in is not the same as the resulted data from the used code.
I added some elements to the code to measure not only the flow rate but also the total amount of ml passed.
Thank you for the reply
Summer
07-05-2017 08:08 AM
07-05-2017 08:28 AM
Hi GerdW,
Please find the attached VI.
Regards,
Summer
07-05-2017 08:39 AM
Hi samar,
before trying to analyze massflow you should fix the hardware issues…
Your "sensor output" chart shows just some noise around 10mV - there are NO pulses you can count!
The "detected frequencies" value of 378.5Hz is also nonsense - atleast for the data you present…
Use MAX to setup your DAQ system. Here you also find testpanels you can use for quick measurements. Use a DMM to test your setup independently from MAX/LabVIEW!
07-05-2017 08:42 AM
Tank you GerdW,
I will try it and check where the error could be.
Regards,
Summer