J.P. Instruments Fuel Scan 450 Pilots Guide - Manual (Page 6)

Page 4 FS-450 Fuel Scan
STEP and AUTO buttons
 Holding both the STEP and AUTO buttons
simultaneously for five seconds changes to the pilot
programming procedure.
Section 3 - Modes and Alarms
Modes
There are two standard operating modes of the FS-450: Automatic
Indexing, and Manual Indexing. Most of the time you will
operate the FS-450 in the Automatic indexing mode. When you
first turn on the power the FS-450 starts in the Manual indexing
mode, but will enter the Automatic indexing mode after a minute.
Tapping the AUTO button will begin the Automatic Indexing
Mode. The indicator lights show you what is being displayed in the
lower digital display.
Alarms
The FS-450 has programmable alarms. When the remaining
amount of fuel falls below the alarm limit the lower display will
show the amount of fuel REMaining and the REM indicator light
will flash.
When the remaining time falls below the alarm limit the lower
display will show the MINutes of fuel remaining and the H.M.
indicator light will flash.
When an alarm is displayed, tapping the STEP button will
temporarily disable the alarm indication for the next ten minutes.
When an alarm is displayed, holding the STEP button until the
word
appears will disable that alarm indication for the
remainder of the flight.