Fuel Flow Indicator Frequently Asked Questions
Question number FAQ-0825
When I check the instruction manuals for each model in the FP series, I see SIG1 and SIG2. Does this mean there are two measurement signals for reverse current detection?
Yes. SIG1 and SIG2 are always outputting.
When rotating in the forward direction, SIG2 outputs a square wave that is 90 degrees out of phase relative to the square wave output by SIG1.
When rotating in reverse, the opposite occurs: when the square wave from SIG2 is used as a reference, SIG1 outputs a square wave that is 90 degrees out of phase.
When rotating in the forward direction, SIG2 outputs a square wave that is 90 degrees out of phase relative to the square wave output by SIG1.
When rotating in reverse, the opposite occurs: when the square wave from SIG2 is used as a reference, SIG1 outputs a square wave that is 90 degrees out of phase.
Last updated: 2020-02-17