How do I resolve an incorrect sign in FLEX?

  • If The FLEX is a pressure sensor: Verify the tubing. The high pressure port needs to go TO THE SPACE OF CONCERN and the low goes to the REFERENCE SPACE. 

  • If the FLEX is reading a voltage value: Verify the inputs/outputs are configured correctly on the display and verify that the customer has wired the device properly 

    My suggestion to resolve the difference: The difference in the values could be the fact the customer did not zero the sensors out and they are seeing a pressure offset with an accuracy difference. 

  • Open the doors between the space of concern and the reference and zero out the FLEX. There can be a difference in values depending on the accuracies of  all the pressure devices. 
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