ATV/Motorcycle/Scooter Computer
ACE-MD085-254/354/5XX User Manual
Thanks for purchasing the Motorcycle/Scooter/ATV computer; this manual is specifically
designed for ACE-MD085-25X/354/5XX series. MD085-254 has bar-speedometer up to
250Km/H, MD085-354 and MD085-5XX have12000rpm bar-tachometer. Other functions
are the same. Each series includes different models, each model has same functions but
with different LED indicators. You may find that the photo has a set of LED indicators
different from your computer, the photo is for reference.
1. Tachometer Scale
7. Shift warning indicator
2. Bar-tachometer 8. RESET Button
3. Bar temperature gauge 9. MODE Button
4. 1st row: Speedometer
10.Gear Indicator
5. 2nd row: Other functions 11. Bar Fuel gauge
6. LED Indicators 12. 12/24HR clock
FEATURES
PANEL DESCRIPTIONS
Simultaneously displays tachometer, speedometer, gear indicator, clock, fuel
gauge, bar-graph temperature meter and one of the other functions.
Integrated an USB connector for Constant voltage control charger.
Main unit with Aluminum forging CNC upper ring and built-in 5-7 LED indicators
for different applications.
Built-in gear indicator which calculates gear comparing speed and RPM, and
“gear indicator off” mode for Automatic vehicles.
Built-in RGB LED backlight, user can adjust his/her prefer backlight color.
On some models the backlight can be controlled separately from the ignition
power.
Bar-graph tachometer has scale of 12,000rpm, digital tachometer is up to
19,900rpm.
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.
Built-in air temperature sensor which installed outside the housings.
Fast processor so can connect to pulse type gearbox speed sensors.
Universal wheel circumference setting range: 1-3999mm.
Fuel gauge in/- 30
∼
80Ω, 100Ω, 250Ω and 510Ω options for fuel
sender input resistance. 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, PT1/8 temperature sensor,
air temperature sensor, fitting kits and wiring harness.
Excellent water resistance, anti-vibration structure and noise immunity design.
RPM sensor mounting: RPM Input, Either one
1. Signal intensity from ignition coil is dependent on vehicle type.
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.
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.
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.
Hall Effective 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 5m
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.
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
Air Temperature sensor:
1. MD085-5XX series includes an air temperature for outdoor temperature
measurement.
2. Plug the sensor’s connector to the relative connector from main
SPECIFICATIONS
Functions
Specifications
Symbol
Speedometer
Digital Tachometer
Maximum speed
Average speed
Max. RPM
Max RPM
Trip meter
Trip 1/2/3
Odometer
Odometer
12/24 Hour Clock
Riding timer
R.Time
Km/h / MPH
MAX SPD
AVG SPD
100
∼
19,900 rpm, 100rpm increment
100
∼
19,900 rpm, 100rpm increment
2.4~300.0 km/h (187.5MPH)
2.4~300.0 km/h (187.5MPH)
2.4~300.0 km/h (187.5MPH)
0.00~999.99 KM/Miles
0 - 999999 KM, 0-624999 Miles
0:00’00” – 11H59’59” / 23H59’59”
0 – 9999H59’
0 – 99H59’59”
0 – 9999H59’
Gear indicator
1-5 bars, +/- 30
〜
80Ω, 100Ω, 250Ω,
510Ω, off mode or RES mode.
8-18VDC, battery voltage warning settable
0
℃〜
180
℃
/ 32
℉〜
356
℉
, off or Hi modes.
-20
℃〜
60
℃
/ -4
℉〜
140
℉
0
℃〜
180
℃
/ 32
℉〜
356
℉
1-5 bars or Off mode.
Bar-Fuel Gauge
N, R, 1, 2,...8 or off
Total Riding Time
Hour meter
HR Time
88:88(AM/PM)
Volt meter
VOLT
Engine Temperature
Air Temperature
MAX Temperature 1/2
Bar Temperature
DstTimer
AccTimer
DstTimer
Maintain
0 to 1/4 mile. 0 to100Meter, 0 to 400Meter
0 to 100km/h, 50 to 70mph
100km/h to 0km/h
0
〜
9999H / 0
〜
9999Km or Miles adjustable
Distance Timer
Acceleration Timer
Deceleration timer
Maintenance reminder
MAXTEMP1/2
TEMP1
TEMP2
T.Time
Power Input
DC 8-18V
Speed Sensor
Reed, 2 or 3 wires Hall-effect Sensor
Tachometer input CDI or Ignition Coil Signal or ECU
Wheel circumference setting 1mm-3999mm (1mm increment)
Temperature sensor
PT1/8” thermistor sensor
Air Temperature sensor
Air thermistor sensor
Dimensions Ø85*56.1mm
G r a y W i r e
Y e l l o w W i r e
:
Bar-Graphic Tachometer
The bar tachometer is 12,000rpm.
Km/H or MPH: Speedometer
1. Displays speed meter up to 300 Km/H or 187.5 MPH.
2. Speedometer can show nearest 0.1 mph or km/h speed if required by user. E.g.
99 or 99.9
3. The maximum frequency of software divider is 7K Hz.
4. The speed can be less than 399.9 KM/H in case the setup is using software
divider for speedometer, for example the maximum speed is 250KM/H in case
setup of software at 105P and the wheel circumference at 1277mm.
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 setting 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 1
be divided by RT.
TRIP 1/2: Trip Meter 1 or 2
Trip 1 or Trip 2 function accumulates distance travelled since last RESET.
TRIP 3: Trip Meter 3
1. TRIP-3 function appears and starts to accumulate trip distance meanwhile
flashes the last fuel bar automatically at low fuel warning status.
2. The LCD screen will auto change to the Trip 3 screen after 4 seconds of button
operations at low fuel warning status.
3. TRIP-3 be reset to zero automatically when fuel is added to over the low fuel
warning level.
Odometer:
1. Odometer accumulates total distance traveled.
2. Odometer data is adjustable when it is less than 30km (18.6 Miles), after that it
stored in memory and cannot be reset.
R. Time: Riding Timer
1. Calculates total running time since last RESET.
2. Counter automatically begins with movement.
T. Time: Total Riding Timer
1. Calculates total riding time fr om the beginning of the bike.
2. TT data is stored in memory, and couldn’t be reset.
HR Time: Total Hour Meter
1. Calculates total engine operation time since installation.
2. Count automatically begins with engine starting.
3. HR Time data is stored in memory, and couldn’t be reset.
: 12/24 hour Clock
It displays 12 or 24 hour current time.
TEMP1: Digital Engine Temperature Meter
1. It displays -L-
℃
or -L-
℉
when temperature is lower than 40
℃
or 104
℉
, and
displays -H-
℃
or –H-
℉
when temperature is over 180
℃
or 356
℉
.
2. The LCD screen jumps to TEMP 1 screen automatically, flashes temperature
bar and -H- as well backlight color when the thermo sensor detects
temperature higher than the maximum preset temperature.
3. The LCD screen will auto change to the TEMP 1 screen and flashes
bar-temperature and -H- after 4 seconds of button operations at over
temperature status. Backlight always flashes at over temperature status.
4. Stop engine until temperature cooling down to protect your engine.
TEMP 2: Air Temperature
It displays air temperature from -20
℃
(-4
℉
) to+60
℃
(+140
℉
)
MAXTEMP1/2: Maximum Temperature 1/2*
Displays highest temperature achieved since last Reset operation.
Maintain: Maintenance Reminders
1. It counts down the preset Maintain entered time or distance since last RESET.
2. It accumulates Maintain when the count down reaches to “0”, and symbol of
“Maintain” flash to remind you to maintain oil or parts.
3. Push and hold RESET button to reset and restart the maintenance reminder
after maintained.
VOLT: Digital Voltage Gauge
It checks bike’s battery and charging systems health.
: Gear Indicator
1. The gear indicator has each one wire for N and R, connect wires to N and R
gears firstly.
2. The gear indicator calculates gear comparing speed and RPM then displays
gear position.
3. User has to training the gear indicator before use it.
:Bar Thermometer*
1. Have 5 bars to indicate engine temperature.
2. The 3rd bar counts from bottom be turned on and over temperature LED
flashes when thermometer reaches the preset warning temperature, each
+/-15
℃
lights on/off a bar base on the 4th bar.
3. The bar-temperature flashes when the measured temperature is higher than
the preset warning temperature.
:Fuel Gauge
1. Has 5 bars to indicate how much fuel remains.
2. To use as a fuel gauge, it built-in F10 E250, F10 E510, F30 E80,
F100E10,F250E10, F510E10,F80 E30 OFF Ohm fuel sender resistance,
FXXX means full fuel resistance, EXXX means empty fuel resistance, the fuel
bars will disappear when you select “OFF” mode. Last bar flashes to indicate
low fuel level automatically. F30 E80 and F80 E30 are for vehicle application.
3. To use as a reserve indicator, connect the reserve switch to the input and put
into “RES” mode. When the switch pulls the input to –ve the backlight will flash
different color and the last fuel-bar flash. On vehicles with temperature based
sensors a 68 ohm 5w resistor needs to be connected between the input wire
and 12v (switched)
4.If the gauge is not required they can be switched off
DstTimer: Distance Test Timer
1. The DstTimer can be set 100meter or 400meter.
2. The unit calculates trip timer auto- start when receive speed signal and auto-
stop when the bike/vehicle reaches the preset distance.
AccTimer: Acceleration Timer Test
1. The AccTimer can be set 0-100Km/H acceleration test.
2. The unit calculates acceleration timer auto- start when receive speed signal
and auto- stop when the bike/vehicle reaches the preset speed.
DecTimer: Deceleration Timer Test
1. The DecTimer can be set 100 to 0Km/H deceleration test.
2. The unit calculates deceleration timer auto- start when speed decelerates to
100km/h and auto- stop after 2 seconds of the bike/vehicle stop then returns
the over counted 2 seconds automatically..
FUNCTIONS
BUTTON OPERATIONS
MODE Button
1.Press the MODE button to move between all functions in sequence as “ ”
from one function screen to another when the speed sensor does not detect any
signal input.
2.Press the MODE button to move partial functions in loop sequence as “ ”
when speed sensor detects signal input.
Max. 8mm
Vibration Direction
sensor
Max. 8mm
Vibration Direction
sensor
Functions
Specifications
Symbol
Bar speedometer*
250 km/h for model #254 & 25X only
Bar tachometer
12,000 rpm for model #354 & 5XX only
Models and Indicators
MD085-X52
MD085-X54
MD085-X56
MD085-X59
RPM
20171018
10R-0413264
