2
12
10
11
9
8
RPM sensing wire:
1. Signal intensity from ignition coil is dependent on vehicle type.
FUNCTIONS
BAR RPM: Bar Graphic Tachometer
The bar tachometer has 10,000rpm and 20,000rpm options.
Km/H or MPH: Speedometer
1. Displays speed meter up to 399.9 Km/H or 248.5 MPH.
2. Decimal of speedometer can be optioned by user.
3. Maximum input frequency 7KHz .
4. If a frequency of 7KHz is reached before the speed reaches 399.9Km/h
then the maximum speed will be lower. With a 1277mm diameter wheel
and the speed input connected to an ABS sensor producing 105 pulses
per revolution the maximum speed displayed at 7KHz would be 250Km/h.
RPM: Digital Tachometer
1. It displays digital tachometer up to 19,990RPM and displays 19,999rpm
when tachometer is over 20,000rpm..
2. Tachometer signal can pick up from either CDI or Ignition Coil Signal.
: Shift Warning RPM
1. The function enables you to set up a shift warning RPM.
2. Shift warning LED indicator flashes when RPM reaches preset value, and
stops flashing after you shift gear.
MAX RPM: Maximum Tachometer
Displays highest tachometer achieved since last Reset operation.
MAX SPD: Maximum Speed Meter
Displays highest speed achieved since last Reset operation.
AVG SPD: Average Speed Meter
It calculates average speed from last RESET. The AVG is calculated from
TRIP be divided by RT.
ODO: Odometer
1. ODO accumulates total distance traveled.
2. ODO data is adjustable when it is less than 30km (18.6 Miles), after that
it stored in memory and cannot be reset.
RT: Riding Timer
1. Calculates total running time since last RESET.
2. Counter automatically begins with movement.
TT: Total Riding Timer
1. Calculates total running time since last RESET.
2. Counter automatically begins with movement.
HRT: Hour Meter
1. Calculates total engine operation time since last RESET.
2. Counting automatically begins when revs are detected.
3. HRT data is stored in memory, and cannot be reset.
: 12/24 hour Clock
Displays 12 or 24 hour current time.
: Bar Thermometers
1. Has 7 bars to indicate engine temperature.
2. The 4th bar counting from bottom is turned on when thermometer
reaches the preset warning temperature, each 15°C increase lights
another bar.
3. The bar-temperature flashes when the measured temperature is higher
than the preset warning temperature.
4. The over temperature LED flashes when either temperature input 1 or
input 2 exceeds preset warning temperatures or is connected to –ve.
Excellent water resistance, anti-vibration structure and noise immunity
design.
**EM & IR receivers and IR transmitter for automated lap timing are
available as accessories.
2. Coil 2-5 turns around spark plug lead, with more turns creating steadily
stronger signal, fewer turns creating weaker signal.
3. The RPM circuit is designed for most bikes, however some bikes’ signal is
too strong if the RPM looks like much more than actual RPM and unstable,
please connect the included 1M Ohm resistor in series to solve it.
2-5
CDI
Ignition Coil
Tuns
RPM-INPUT
Either One
Max. 8mm
Vibration Direction
sensor
Max. 8mm
Vibration Direction
sensor
Reed Speed Sensor and Magnet:
1. This sensor is universal sensor for motorcycle, find a rotating part to install
magnet (for example disk, sprocket or driveshaft) and a location to install
the sensor where it can be aligned to the magnet.
2. Align the center of the magnet to either of the sensor marking lines or the
side of the sensor. The magnet must not travel down the body of the
sensor.
3. Installing the sensor parallel to the vibration direction creates optional
anti-vibration effect.
4. Make sure the gap between the magnet and the sensor is within 8mm.
Speed Sensor Mounting:
ACEWELL has several speed sensors; the unit may include one of them. If the
model is intended to be connected to a gearbox electronic speed output to
obtain the speed reading, no speed sensor will be included.
Specific Hall sensors:
Cable drive adaptors for most bikes originally fitted with cable driven
speedometers or milemeters are available. When using these cables it is
necessary to divide the circumference setting by the number of rotations of
the cable per rotation of the wheel or enter the number or rotations into the
“P” screen in setup.
Hall Effec Speed Sensor and Magnet:
1. This is universal sensor for ATV front or rear wheel installation or
motorcycle front wheel installation. For some fitments an accessory speed
sensor holder may need to be purchased.
2. Find a rotating part to install magnet (for example disk, sprocket or
driveshaft) and a location to install the sensor where it can be aligned to
the magnet.
3. Align the center of the magnet to center of side face of the sensor.
4. Make sure the gap between the magnet and the sensor is within 5mm.
*Thermo Sensor and Sensor Tube:
1. The unit includes a water temperature sensor; you have to purchase a
suitable water pipe temperature sensor tube to install the sensor easily.
2. Cut the water pipe, insert the temperature tube into the pipe and secure
it by attached pipe clamps.
3. Screw the sensor into the tube.
4. If your vehicle is fitted with a thermostat that stops water flowing to the
radiator when the engine is cold, you will not get a reading until the
thermostat opens.
**Wire Remote Control Switch Installation:
1. Install the switch arm on handlebar.
2. Install the switch box to one of 3 fixing holes and adjust switch box to a
suitable angle.
3. Plug the switch box connector into the main unit matching connector.
7
5
6
FEATURES
Simultaneously displays tachometer, speedometer, gear indicator,
fuel gauge and *bar-graph temperature meter as well as one of the
other functions.
Built-in gear indicator which calculates gear by comparing speed and
RPM. The gear indicator can be switched off for automatic vehicles.
On some models the backlight can be controlled separately from the
ignition power.
Bar-graph tachometer has selectable scale of 10,000rpm or 20,000
rpm.
End user is able to adjust odometer when the odometer is less than
30km /18.6 miles.
*Acceleration and deceleration timers as well as distance timer for
racing practice.
** Features a 99 lap timer and an optional cable connected remote
control switch.
Built-in 6-8 or 6-10 LED warning lamps with different symbols
depending on model.
Fast processor so can connect to pulse type gearbox speed sensors.
Universal wheel circumference setting range: 1-3999mm.
Fuel gauge full and empty resistances are fully adjustable and it can
connect to sender units with resistance range up to 990 ohms. In
reserve mode, the fuel gauge is not displayed and fuel symbol lights
when the input wire is connected to -ve. The gauge can be switched
off entirely if not required
Flexible battery warning voltage setting from 11.0 to 14.9V.
Speedometer can show nearest 0.1 mph or km/h speed if required by
user. E.g. 100 or 100.5
Includes bracket, RPM sensing wire, speed sensor, *temperature
sensor(s), fitting kits, wiring harness and **wired remote control
switch.
Thanks for purchasing the ATV/Motorcycle computer; this manual
is specifically designed for ACE-7XXX series. The ACE-7XXX series
includes ACE-71XX/72XX, 75XX/76XX and ACE-77XX/78XX,
descriptions with “*” are for ACE-75XX/76XX and ACE-77XX/78XX
only, functions and descriptions with “**” are for ACE-77XX/78XX
only. Each series has different models, each model has different
LED indicators. You may find that the photo has a set of LED
indicators different from your computer, the photo is for reference
only.
INSTALLATION & PARTS
Rubber Pad
Washer
Spring Washer
Fixing Screw Nut
Main Unit
Main Unit Mounting
3
PANEL DESCRIPTIONS
Left direction indicator
High-beam headlamp
Low battery indicator
Right direction indicator
Engine oil warning
Low fuel indicator
1. Tachometer Scale
2. Bar Tachometer
3. 1st row: Speedometer
4. 2nd row: Other functions
5. RESET Button
6. MODE Button
7. Bar Fuel gauge
8. Bar temperature gauge*
9. Gear indicator
10. LED Indicators
11. External control indicators
12. Internal/external control
indicators
SPECIFICATIONS
Power Input
Tachometer Sensor
Speed Sensor
Wheel circumference setting
Speed input divider setup
Maximum frequency of divider
Dimensions
*Temperature Sensor
**Lap Timer Sensor
DC 12V
CDI or Ignition Coil Signal
Reed switch / 2 wire Hall-effect Sensor
& Magnet / Cable drive adaptor
1mm-3999mm (1mm increment)
1-199 Pulses
7K Hz
130.1mm x82.8mmx27.0 mm
Thermo Resistor Sensor
Push button or optional accessory spare parts of IR
receiver/Magnetic Field sensors
Function
Specifications
Symbol
500-10,000 rpm/1,000-20,000rpm options
2.4-399.9 km/h (248.5 MPH)
0.0-999.99 KM/Miles
0.0 – 999,999 KM, 0.0-621,387 Miles
0:00’ – 11H59’59”/23H59’59”
10-19,990 rpm, 10rpm increment
+25°C-180°C / 77°F-356°F
2.4-399.9 KM/h (248.5 MPH)
0-99H59`59``
0-9999H59’
0-9999H59’
8.0-18.0 Volt
0-9999H / 0-9999km(6213Miles)
2.4-399.9 Km/h (248.5 MPH),
10-19,990 rpm, 10rpm increment
+25°C-180°C / 77°F-356°F
N, R, P, H, L, 1, 2, ... 8 gears and off mode
0-1/4 mile. 0-100M, 0-400M
0-100km/h, 50-70mph
100kmh-0kmh
Adjustable 0Ω -990Ω, reserve mode, or not
displayed.
1-7 Bar-graphic
99 Laps
Bar Tachometer
Speedometer
Trip meter 1&2
Odometer
12/24 Hour Clock
Digital Tachometer
*Thermometer Meter
Average speed
Riding timer
Total Riding Timer
Hour meter
*Voltage Meter
Maintenance reminder
Maximum speed
Maximum RPM
*Max. Temperature
Gear Indicator
*Distance timer
*Acceleration timer
*Deceleration timer
Bar Temperature
**Lap Timer
Bar-Fuel gauge
Km/h / MPH
TRIP 1&2
ODO
rpm
RT
Trip RT
SPD RT
d SPD RT
LAP
TT
MAX SPD
MAX RPM
MAX
AVG SPD
LED Indicators
4
1
ACE-7XXX User Manual
HER CHEE ATV Computer
