ALCO-SENSOR FST
E07
Calibration Failed (unable to calibrate – usually due to a sample out of range) Too low/high of Fuel Cell
output difference from last calibration outside of set parameters.
E09
Temp too Cold for Test Type Being Performed
E10
Temp too Hot for Test Type Being Performed
E11
Failed Air Blank – Replace mouthpiece with new mouthpiece and begin test again
Invalid Sample – instrument detected an anomaly in the fuel cell wave form during analysis and aborted test
E12
sequence
E21
Fuel Cell Baseline Unstable – stable fuel cell baseline could not be established in the allotted time
E22
Invalid Calibration Target (target value entered must be between .015 & .200)
E23
Recall Memory Failure
E25
Insufficient drive voltage to reset solenoid
E26
Excess drive voltage after solenoid reset
E27
Insufficient drive voltage to sample
E28
Excess drive voltage after sample
E29
Fuel Cell Signal Clipping Condition – Fuel Cell reading exceeded A/D maximum range
E30
Pressure Sensor Baseline Unstable – Stable pressure baseline could not be established in the allotted time
E31
Result Over Range – Fuel cell result greater than configured maximum reading or Time to Fuel Cell Analysis
was too long (usually = >60 seconds at room temperature)
E32
Internal Error - serious error occurred, normally hardware related
E33
Accuracy Check Required – event requires accuracy check (could be a required scheduled check or post
calibration requirement
xxx
Random three-digit number displays – you have accessed a pass-coded menu option – Contact your
Supervisor.
Frequently Asked Questions
Q: After a fifteen-minute deprivation period does the Alco-Sensor FST respond to anything other than alcohol found in the
human breath?
A: The Alco-Sensor FST responds only to alcohol. It does not respond to acetone or hydrocarbons, which also
might be present in the breath.
Q: What is the life of a fuel cell?
A: Field use indicates that fuel cells have an average life of 3 - 6 years.
Alco-Sensor FST Operator Manual, Page 30 of 33, 11/30/2017
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