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ACRO E-mail Archive Thread: S2B Digital Fuel Flow Problems

Thread: S2B Digital Fuel Flow Problems

Message: re: S2B Digital Fuel Flow Problems

Follow-Up To: ACRO Email list (for List Members only)

From: Dave Swartz <dswartz at icanect.net>

Date: Sun, 24 Mar 1996 04:07:29 UTC

Message:

If the digital flow meter is indicating flow rather than total fuel burned when it goes to zero, the problem could be :
	1) intermittent open or short in the sensor cable
	2) sticking or otherwise faulty sensor
	3) intermittent indicator circuit

These are listed roughly in order of probability.  I have had periodic problems with RF coupling to the circuit (when I'm transmitting) - but this only resets the totalizer, the fuel flow indication should only be temporarily cleared by RF.  We did have to replace the sensor at around 300 hours - it has minimal air flow around it and may be subject to heat damage.