3
MAN# 650051-A
BOOST CALIBRATION
When “BST CAL” is displayed press and hold the button until the display dims, then
release the button. Now the two calibration menus can be accessed. The supplied boost
sensor measures atmospheric pressure. The controller then calculates appropriate boost or
vacuum readings. The “zero” point that all of the calculations are based on can be adjusted
to insure appropriate boost reading at various elevations and weather conditions. There are
two methods for setting the calibration point, auto and manual, either one can be used. For
the auto cal it is very important that the engine is off because the gauge samples the sensor
and saves the current pressure reading as “zero” psi. For the manual cal, the pressure can
be selected from a table or calculated from current conditions.
AUTO CAL
When “AUTO CAL” is displayed, press and hold the switch until the display dims, then
release the switch. The gauge will display “WAIT” and then “DONE” once calibration is
complete. Press and release the switch to go on with setup.
MANUAL CAL
When “MANL CAL” is displayed, press and hold the switch until the gauge dims, then
release the switch. The current calibration value will be displayed. This value is the
atmospheric pressure. A table is found on page 6 of the manual that provides the
appropriate atmospheric pressure at different elevations. The atmospheric pressure can
also be converted to PSIA from a known barometer reading measured in
inHg
. The following
formula can be used to convert inHg to PSIA:
PSIA = inHg / 2
Press and release the switch to select the appropriate PSIA reading. Press and hold the
button until the gauge dims to save the new calibration value and continue with setup.
BOOST WARINING SETUP
There are two boost warnings that can be set from 7 – 69 psi. Press and hold the switch
when “HI WARN” is displayed. Once the display dims release the switch and the current warn
value will be displayed. Press and release the switch to select the desired warn value. Once
the desired value is displayed, press and hold the switch until the display dims, then release the
switch to continue with setup. If the warn point is reached/exceeded the display will flash and
the Warning output will be switched to ground.
The “HI WARN2” is setup the same as the “HI WARN”. This boost value will activate
the Bst Warn terminal only if the “HI WARN2” value is reached or exceeded by switching that
output to ground. This output is the special boost output which can be used to trigger events
based upon boost levels.
BOOST UPDATE SETUP
The update controls the speed at which the boost reading will change or be displayed.
There are three update speeds to choose from. To set the update speed press and hold the
switch when the “UPDATE” message is displayed until the display dims then release the button.
Press and release the button to toggle through the three speeds, “AVERAGE”, “FAST”, and
“PEAKHOLD”. When the desired speed is displayed, press and hold the switch until the display
dims to save the current value, then release the switch to continue with setup.
TEMP SETUP
The supplied temperature sensor is a 0 – 400 ºF sender. The gauge can be setup to
read Fahrenheit or Celsius temperatures.
