Bennett Marine Tab Position Indicator - Manual (Page 2)

Mounting Display
Step 1 Choose a location for the TPI display at the helm (or place in existing 2” gauge hole
if one is available). Make sure that there is no obstruction behind the dash in that location.
Using the Display Retainer / Template, drill a ¼” pilot hole. Remove the template, and snap
out the pilot hole guide by twisting it back and forth.
Step 2 Using the pilot hole
cut a 2” hole in the dash with
the 2” hole saw.
Step 3 Pull the Red and Green cables and Orange and Black
wires through the display retainer, dashboard and TPI gasket.
Step 4 Strip the two green wires
inside the green sensor cable
and insert into wire connector on
the back of the TPI display in
locations marked “GRN” (it does
not matter which green goes in
which GRN) and tighten in place
with small flat screwdriver. Repeat for red wires in red sensor cable and insert into locations
marked “RED”. Twist the silver shield wires together from both the red and green cables and
insert into location marked “SHLD”. Strip and insert the supplied black ground wire into
location marked “-“. Strip and insert supplied orange fused wire into location marked “+”. Make
sure that the fuse holder is closest to the power supply.
Step 5 Connect black wire from display to any convenient negative ground. Connect orange “+” wire from display to 12 volt
positive, such as ignition, accessories or gauges that turn on with ignition or a separate switch. Note: This power lead is
connected last. Use wire tie to secure wires to Display Retainer.
Step 6 Push display into hole, seating it on the gasket. Tighten wing nuts to secure display and retainer snugly to the
dashboard.
Calibration
Make sure that both trim tabs are in the full up position. When you power up the TPI the port and starboard displays will
begin to flash alternately, indicating that the system is not calibrated. Press and hold both buttons on the TPI
simultaneously for about 3 seconds. Both the port and starboard lower yellow LEDs will begin to blink. Using the Trim Tab
controls run both Trim Tabs to the full down position (Bow Down on the control). Hold the control longer then
necessary to ensure that both Tabs go fully down (this will not harm the system). A few moments after the Tabs are all
the way down the upper port and starboard yellow LEDs will begin blinking. Again, using the Trim Tab Controls, run both
tabs to the full up position. Make sure the tabs come all the way up. The upper yellow LEDs will then light up solidly
indicating that the TPI is calibrated and ready to operate. If you wish to re calibrate the TPI at any time simply bring the
Tabs to the full up position, hold both buttons down and repeat the calibration instructions.
Operation
The intensity of the display may be adjusted by pressing the right button to brighten and the left button to dim the display.
The TPI display may be turned off by pressing the left hand button until no display is visible.
Diagnostic Information
Port and starboard display alternately flash: TPI requires calibration. Refer to calibration information above.
Upper yellow LED flashes on port or starboard display: Indicates the display is not receiving a sensor signal. If the port
upper yellow LED flashes the fault is in the port sensor or wires. A flashing yellow LED on the starboard display would
indicate a fault on the starboard sensor or wiring. Check for a broken wire to sensor, faulty connection or corrosion at TPI
display. Switching the connections on the back of the helm display will confirm the diagnostic code if the flashing LEDs
switch sides. Alternatively you may check the twisted pair of wires inside the shielded red and green cables with an Ohm
meter set to the 10X scale. They should produce a reading in the 220 -260 Ohm range.
Bennett Marine
550 Jim Moran Blvd. Deerfield Beach, FL 33442 USA
Phone 954-427-1400 Fax 954-480-2897
Web Site www.BennettTrimTabs.com
E-mail [email protected]