Congratulations on your purchase of the AUDIT 2U9 Tank Monitor
System. AUDIT (Automotive Data Information Terminal) is a
registered trademark of Javelina Corporation. The AUDIT System
utilizes a state of the art microprocessor which insures
years of trouble free operation, extended tank sensor life and
accurate tank level measurements.
Your AUDIT 2U9 is the
15th generation AUDIT system specially designed for use in
your new Foretravel Motor Home. The 2U9 incorporates all of the past improvements plus VGA
graphics on a newly styled Color LCD screen. The AUTOCAL
feature calibrates each holding tank for accuracy. Factory
authorized service personnel are very capable of servicing
the AUDIT system should the need arise.
ON/OFF: This switch powers
the monitor, camera and computer and serves as the master power switch. In some cases this switch
has a third position to control the passenger side camera.
SELECT: This switch signals
the computer (CPU) to display either tank level graphics , compass and outside temperature screen
or rear video.
BRIGHTNESS CONTROL: This
switch controls the brightness of the three video pictures (tank level, rear video or the extended
rear video screen).
LCD COLOR MONITOR: The
monitor utilized in the system is a reliable, solid state, 12 volt, LCD (Liquid Crystal Display)
Color Monitor. This monitor has proven capability over a wide
temperature range. This monitor is compatible with the Color Camera
option as well as the Black/White camera option. The screen lens is
made of non-glare glass, cut by water jet to precise tolerances, to
allow surface cleaning without scratching.
SWITCH PANEL: The switches
that control the AUDIT system are located on an electroluminescent panel. The
electroluminescence is what lights the panels for night operation. The
electroluminescence is a thin film of phosphor located between the front panel
graphics and the aluminum panel. Energizing this phosphor with AC
voltage makes the phosphor glow thereby lighting the graphics in
front of it. Care should be taken not to puncture this panel as it could
permanently damage the backlighting. Any addition of
switches should be performed only by factory authorized personnel to
avoid damaging this panel. DRILLING OR
CUTTING INTO THE DASH
PANELS WILL CAUSE PERMANENT DAMAGE TO THE LIGHTING.
Properly cared for these panels will provide over 10,000
hours of operation (night time driving).
CARE AND CLEANING Use only a clean damp cloth to clean the screen or dash
surface. Never use abrasive, acetone or ammonia based
products in cleaning these surfaces.
Model 2U9 Operations The operation of the model 2U9 is virtually automatic. At
Apower up@ the system displays the FORETRAVEL Logo
screen while the computer performs 84 operational tests and
calibrations. Once complete the Computer loads the holding
tank calibrations. This is observed by the multi-color
the "Audit 3U9" on the screen. Once complete the video
screen automatically changes to the selected screen (either
rear video or compass and tank level gauges). Holding tank
levels are determined by external pressure probes connected
to the tank drain plumbing. The tank sensor then transmits
the tank level to the computer via the tank wiring harness. The computer interprets the reading and displays the
appropriate data via a high resolution VGA (video graphic
adapter) located within the computer itself. The model 2U9
computer has a unique auto cal feature that compensates for
tank variances, voltage variances as well as wiring harness
variances. This unique auto cal feature is activated by the factory installer and, once activated, never needs
again unless a tank or sensor is replaced.
The 2U9 displays tank levels using red to represent
critical or awareness levels. For instance, if the Fresh Water is below
1/4 level the resulting level will be displayed in red. The
same is true for the grey and black water tanks except the
critical levels are reversed
and displayed at levels over 3/4 of a tank. The L.P. gas
level turns to red at 1/8 of a tank or less. The L.P. tank, when
empty will still show one red bar at the bottom of the graph
representing that the tank is never totally empty. The
outside temperature displays in degrees Fahrenheit and has two color
ranges, at 85 degrees the temperature turns from green to
CALIBRATION (Model 2U9)
The auto calibration feature of this computer
automatically and easily compensates for variances in tank
thickness, and harness resistance. This feature, once
activated, stores the calibration data in non-volatile
memory on board the computer. The calibration data is accessed each
time the computer is turned "on". Once the calibration data
is stored the auto cal feature need not be used again unless a
tank sensor or tank is replaced. The auto cal feature only
affects the " Fresh", "Grey" & "Black" holding tank
levels.The auto cal has no effect on the Volt, LPG or compass readings.
To activate the Auto Cal
feature proceed as follows:
1. Empty the Fresh, Grey &
Black water holding tanks.
2. Turn the Computer "on"
and select the holding tank screen.
3. Locate connector pin #15
located on the 24 pin Deutsch
connector on the end of the computer. Once the tanks are
emptied, momentarily short Pin #15 to ground. In the center
of the screen you will notice a "wait" and then a "done"
message. When the word "done" appears it means the computer has stored those readings as empty readings.
4. When "done" appears,
fill the tanks to their fullest desired
levels. Once the tanks have been filled to the desired
and allowed to settle (approx. 1 minute) short Pin #15 to
ground. Again, notice a brief "wait" message followed by a
"done" message. This means that the computer has taken the
tank readings and stored them as "FULL" levels.
5. Turn "off" the computer
via the front panel switch, wait 3
seconds and turn the computer "on". The "done" message is
gone and the computer is calibrated.
The computer may be calibrated as many times as necessary. Remember, once the final "done" is displayed
the computer must be turned "off" and then back "on" for the
reading to be loaded!
The 2U9 computer utilizes a state of the art compass
sensor. The sensor has its own on-board microprocessor that
continually calibrates the sensor keeping it accurately able
to define magnetic north. This sensor is so sophisticated that
it has the ability to calibrate to individual vehicle characteristics.
The compass sensor has been fitted to the Foretravel Coach
and, in it=s present configuration, is located on the top
roof mounted facing forward. The sensor must be mounted with
THE USE OF ANY OTHER MOUNTING HARDWARE IS NOT APPROVED