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Frequently Asked Questions about Fuel Flow Meters

Question number FAQ-0825

When checking the instruction manuals for each model of the FP series, there are SIG1 and SIG2; does this mean that there are two measurement signals for backflow detection?

Yes. SIG1 and SIG2 are always output.
When rotating clockwise, a rectangular wave delayed by 90 degrees is output from SIG2 based on the rectangular wave of SIG1.
When rotating counterclockwise, the opposite occurs, and a rectangular wave delayed by 90 degrees is output from SIG1 based on the rectangular wave of SIG2.

Last updated: 2020-02-17