Can RFI cause "Unstable Reference" error flag rather than "RFI Inhibit"?
Can RFI from a police radio or cell phone transmission in the breath room cause an error message or exception other than "RFI Inhibit"?
Radio frequency interference or electro-magnetic interference can cause a wide range of errors or error messages on an Intoxilyzer 5000 as shown in this experiment. An Intoxilyzer 5000 was exposed to RFI during the flying wings setting of electronics after an Air Blank.
This experiment shows that RFI can produce an error message other than RFI detection. A strange group of errors including ambient fail, unstable reference, range exceeded, and invalid sample may be more indicative of a RFI problem at the detachment than the errors so described.