Auto Meter 1302 - Manual

• Pulse rate generated proportional to vehicle speed.
• Output within the voltage ranges listed below:
2.0 to 16 V peak (Square Wave), 3 wire
2.0 to 120 V peak to peak (Sine Wave), 2 wire
Recommended Auto Meter Hall Effect (Square Wave), 3 wire 16 pulses
Per Revolution senders:
5291 Standard 7 ⁄
8
-18 thread
5292 Ford, plug in
INSTALLATION INSTRUCTIONS
3
1
/
8
" ELECTRIC SpEEdOmETER
2650-1184
WARNING
Incorrect hookup will damage speedometer and void
warranty. Please read these instructions.
2 1 ⁄
4
"
3.300"
3.141" dia. (3 9 ⁄
64
" ref.)
General Information
Speedometer Senders
The speedometer is designed to operate with an electrical speed
sender. The speed senders signal impulse range must be between
500 and 400,000 pulses/mile. Any speed sender or electronic
module that meets the following two conditions can be used:
mounting
1. Mount the speedometer in a 3.156" (3 5 ⁄
32
") dia. hole in the
dashboard. (Be careful not to cut the hole too large.) It can also
be mounted in standard after market street rod panels.
2. Cut a 3 ⁄
8
" dia. hole in the firewall for the speedometer wires. Place
a rubber grommet in the hole and route the connector wires
through the grommet to the engine compartment.
3. Connect the speedometer wires as shown in the Wiring Section.
4. Secure the speedometer to the dashboard using the provided
bracket, thumbnuts and lockwashers.
NOTE: With the ignition switch off, the speedometer pointer may
not always rest at zero. This is normal. When engine is started,
pointer will position correctly.
Front
Calibration
(Only needed if the conditions in General Information
are not met.)
Calibration Range: 500 to 400,000 pulses/mile
1. Speedometer and sender must be installed.
2. To set the speedometer in calibration mode; press and hold the
Trip/Reset button while starting the engine, then release the
Trip/Reset button. The pointer will then move to full scale.
1. Tires slightly increase in diameter as vehicle speed increases.
To minimize this error drive at an average speed during
calibration. (Approx. 45 mph for most street vehicles. )
2. Tires slightly increase in diameter as air pressure is increased.
To minimize this error, check the tires to ensure correct air pressure.
3. The diameter of the tires change with vehicle load. Minimize this
error by having an average load in the vehicle during calibration.
4. Tire slippage. Minimize this error by not breaking traction.
5. Accuracy of 2 mile distance driven during calibration. Minimize
this error by verifying the distance.
NOTE: Always recalibrate speedometer after any tire size or differential
ratio change.
This is a list of factors that can affect speedometer accuracy and
how to minimize them during calibration.
3. Go to the beginning of a known two-mile distance and stop. Press and
release the Trip/Reset button. The pointer will move to half scale and
is ready for calibration.
NOTE: The accuracy of the speedometer depends on the accuracy of the
measured two-mile distance.
4. Drive the two-mile distance and stop. Press and release the
Trip/Reset button. The calibration mode will be exited and the pointer
will return to 0 mph.
Calibration is complete!
Once the speedometer is mounted and wired into the vehicle, the
speedometer should be tested to verify the electrical connections are
working properly. First, watch the speedometer’s pointer as the power
is applied. The pointer should first move to a midrange position, then
down to the zero box on the dial. This action verifies that power is
properly connected to the speedometer. The vehicle should be driven
some distance to verify the Vehicles Speed Sender (VSS) is connected
properly, and that the pointer moves. If the pointer does not move off the
zero box, verify the VSS is connected properly.
This electric speedometer utilizes a LCD to display odometer and trip
odometer mileage. Momentarily pressing of the Trip/Reset button on the
dial window toggles the odometer/trip odometer information displayed
on the LCD. Pressing the button, while in trip mode, for more than two
seconds will reset the trip odometer. The odometer cannot be reset.
This Auto Meter electric speedometer is pre-calibrated for 16,000 pulses/
mile. When converting from a cable driven speedometer, no further
calibration is needed if:
1. The transmission’s speedometer cable take off is 1000 RPM at 60
MPH. Most vehicles meet this requirement. If the vehicles tire size
and/or differential ratio has changed, the speedometer needs to
be recalibrated.
2. The vehicle is equipped with a 16-pulse/revolution sender.
(See Speedometer Senders below for available Auto Meter Senders.)
If the above conditions have not been met, the speedometer must be recalibrated.
(see calibration section)
NOTE: The odometer on this speedometer will read from 1 to 5 miles.
This is done during factory testing to insure optimum quality.
Side View
QUESTIONS :
If after completely reading these instructions you have questions regarding the operation or installation of your instrument(s),
please contact Auto Meter Technical Service at 815-899-0801.
You may also email us at [email protected].
Additional information can also be found at http://www.autometer.com/tech_faq.aspx