ATV/Motorcycle/Scooter/Vehicle Computer
MA-085-XXX-XX User Manual
Thanks for purchasing the ATV/Motorcycle/scooter/vehicle computer; this manual is
specifically designed for MA-085-XXX-XX series. MA-085-1XX/2XX series has needle
speedometer scale, weather MA-085-3XX/4XX/5XX/6XX series has different needle
tachometer scales, 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.
Different series with different needle tachometer or speedometer scales are as bellows:
MA-085-21X: 210Km/H MA-085-3XX: 6000rpm
MA-085-26X: 260Km/H MA-085-4XX: 9000rpm
MA-085-5XX: 12000rpm
MA-085-6XX: 15000rpm
The last suffix “–XX can be identified up case material of bezel as bellows:
No. suffix: Plastic material.
-AB: CNC aluminum bezel with anodizing mesh black treatment.
-CP: CNC aluminum bezel with chrome plating treatment.
1. Tachometer Scale
2. Needle Tachometer /speedometer
3. 1st row: Current & Max.
Speedometer
4. 2nd row: Other functions
5. Gear Indicator
6. RESET Button
7. MODE Button
8. RPM Shift Warning Indicator
9. Bar Temperature gauge
10. Bar Fuel gauge
11. 8 LED indicators
FEATURES
PANEL DESCRIPTIONS
Needle tachometer or speedometer, integrated digital functions and 8 LED
indicators for different models.
LCD displays needle speedometer, bar temperature and fuel gauges, gear
indicator and one other function simultaneously.
Gear indicator which calculates gear by comparing speed and RPM.
An optional air temperature sensor can measure outside temperature.
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 15.0V.
Speedometer can show nearest 1 or 0.1 mph or km/h speed if required by user.
E.g. 100 or 100.5.
Highly visible 3 shift warning LED indicator.
Allows end user to adjust odometer when the odometer is less than 30km / 18.6
miles
Universal wheel circumference setting range from 1 to 3999mm.
Includes bracket, RPM sensing wire, hall or reed speed sensor, fitting kits,
wiring harness, main unit sleeve and temperature sensor.
Excellent water resistant, anti vibration structure and noise immunity design.
RPM sensor mounting:
1. Connect either the yellow or white wire to sense the RPM signal.
2. The yellow wire can be wrapped around the spark plug lead.
a.Signal strength from the ignition coil is dependent on coil type.
b.Coil 2-5 turns around spark plug lead, the more turns the stronger the
signal. A weak signal will not show a reading on the screen whereas a very
strong signal will have a reading which is too high or very jittery. If the
reading is incorrect then try putting the 1MΩresistor which is included in the
box inline in the sensor wire.
3. If the signal is still unstable, please try to connect the white wire to either the
ECU rev counter output or to the primary side of the coil or to the pulse wire on
an active spark plug cap.
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.
SPECIFICATIONS
Functions
Specifications
Symbol
Maximum speed
Average speed
Temperature 1
Max. Temperature
Temperature 2
Digital Tachometer
Speedometer
Km/h / MPH
MAX SPD
AVG SPD
1
2
rpm
100
∼
19,900 rpm
2.4-399.9 km/h (248.5 MPH)
2.4-399.9 km/h (248.5 MPH)
2.4-399.9 km/h (248.5 MPH)
0
℃
-180
℃
/ 32
℉
-356
℉
, HI or oFF
<0
℃
display -L-, >180
℃
display -H-
0.0~999.9 KM/624.9Miles
0 - 999999 KM, 0-624999 Miles
999.9-0 KM/Miles count down
AM/PM 0:00’ – 11H59’ / 23H59’
0 – 999999H
0 – 99H59’59”
0 – 999999H
8-18VDC, battery voltage warning settable
N, R, 1, 2,…8 gears and off mode
9999km, 9999 hours or oFF
1-7 Bar-Graphic or off mode
1-7 Bars, Adjustable 10Ω -990Ω,
reserve mode, or not displayed
0
℃〜
180
℃
/ 32
℉〜
356
℉
MAX
TRIP 1or2
TRIP 12
ODO
RT
TT
HRTT
V
Power Input
DC 12V
Tachometer Sensor
CDI or Ignition Coil Signal
Speed Sensor
Reed or hall Sensor
Temperature Sensor
Thermo Sensor
Speed input divider setup
1-199 Pulses
Maximum speed input frequency
7K Hz
Wheel circumference setting 1mm-3999mm
Dimensions
Ø85*56.1mm
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.
Max. 8mm
Vibration Direction
sensor
Max. 8mm
Vibration Direction
sensor
Functions
Specifications
Symbol
Needle Speedometer
Needle Tachometer
MA-085-21X 210Km/H
MA-085-26X 260Km/H
MA-085-3XX 6,000rpm
MA-085-4XX 9,000rpm
MA-085-5XX 12,000rpm
MA-085-6XX 15,000rpm
Main Unit Installation:
Spring Washer
Washer
Rubber Pad
Fixing Screw Nut
Screw
Bracket
Main unit sleeve
Main Unit
Hall Effective Speed Sensor and Magnet:
1. This is universal sensor for ATV or motorcyclefront 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.
Specific Hall sensors:
Cable drive adaptors for most bikes originally fitted with cable driven
speedometers or odometers 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 may have to
purchase a suitable water pipe temperature sensor tube to install
the sensor on some bikes.
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.
5. Custom sensors are available for carburetted bikes to replace the
original sensor.
RPM: Digital Tachometer
1. It displays digital tachometer up to 19,990RPM and displays 19,999
rpm when tachometer is over 20,000rpm..
2. It has 2 wires to pick up RPM signal, the yellow wire is to connect to
Plug,and white wire is for signal from ECU or Ignition coil.
Shift Warning RPM
1. The function enables you to set up a shift warning RPM.
2. The yellow indicator flashes when RPM reaches 500rpm before setting value.
3. The orange indicator turns on when RPM reaches setting value.
4. The red indicator turns on when RPM reaches 500rpm more setting value.
5. Each indicator turns off or stops flashing after you shift gear.
Km/H or MPH: Speedometer
1. Displays speed mete r up to 399.9 Km/H or 248.5 MPH.
2. The maximum frequency of software divider is 7K Hz.
3. With a small wheel size and large number of pulses per wheel
revolution it may not be possible to display very high speeds.
MAX: Maximum Speed Meter
Displays highest speed achieved since last Reset operation
AVG: Average Speed Meter
It calculates average speed from last RESET. The AVG is calculated from
TRIP1 be divided by RT.
TRIP 1or2: Trip Meter 1or2
TRIP function accumulates trip distance since last RESET as long as bike/
vehicle is moving.
TRIP 12: Trip Meter 3
1. TRIP-3 function appears and starts to accumulate trip distance automatically
after low fuel warning LED is turned on.
2. RIP-3 be reset to zero automatically when fuel is added to over the low fuel
warning level.
ODO: Odometer
1. ODO accumulates total distance traveled.
2. ODO datemory 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 riding time from the beginning of the bike.
2. TT data is stored in memory, and cannot be reset.
HRTT: Hour Meter
1. Calculates total engine operation time since installation RESET.
2. Count automatically begins with engine starting.
3. HRTT data is stored in memory, and cannot be reset.
: 12/24 hour Clock
It displays 12 or 24 hour current time.
1 and 2: Temperature Meter 1 & 2
1. It measures and displays from 0
℃
-180
℃
/ 32
℉
-356
℉
.
2. It displays -L-
℃
or -L-
℉
when temperature is lower than 0
℃
(32
℉
) or
disconnected temperature sensor, and displays -H-
℃
or –H-
℉
when temperature
is over 180
℃
or 356
℉
..
3. User can measure engine temperature with sensor 1 and ambient air temperature
with sensor 2.
4. The bar-temperature and digits of temperature as well temperature LED indicator
flash when the thermo sensor detects temperature higher than the maximum
preset temperature.
MAX 1&2: Maximum Temperature 1 & 2
Displays highest temperature achieved since last Reset operation.
: Digital Voltage and Battery Warnings
1. It checks bike’s battery and charging systems health.
2. It has 3 modes to be set, b-on, b-oFF and b-HI, all 3 modes range is from 11.0V to
15.0V.
3. The “b-on” means battery warning on voltage, when the voltage falls below this
the LED will flash.
4. The “b-off” means battery warning off voltage, b-off voltage must larger than b-on
voltage.
5. The “b-HI” means battery high voltage, it comes on to warn that the batter has
over charging.
: Gear Indicator
1. The gear indicator calculates gear by comparing speed and RPM then displays gear
position.
2. User has to train the gear indicator before use it.
SCAN: Scan function
1. The 2nd row of LCD data will be changed automatically every preset number of
seconds if the SCAN is selected. The scan period is from 1 to 20 seconds.
2. All functions will be manual operations when SCAN is switched off.
: Fuel Gauge
1. Has 7 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
: Bar Thermometer*
1. Has 7 bars to indicate engine temperature.
2. The 4th 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.
Speed decimal option:
1. User can decide to display speed to 1 or 0.1 mph / km/h.
2. Follow the item 11 of set up mode to option the decimal of speedometer.
Trip or HRT: Maintenance Reminder
1. The maintenance reminder can set by either trip meter or hour meter, and an
“Off” mode to switch it off.
2. The trip meter maintenance can be set up to 9999km.
3. The HRT maintenance reminder can be set up to 9999 hours.
Bar-Temperature
Bar-Fuel Gauge
Trip meter 1or2
Trip meter 3
Odometer
12/24 Hour Clock
Riding timer
Total Riding Time
Hour meter
Voltage Gauge
Gear indicator
Maintain reminder
Sleeve Rubber Pad
Trip or HRT
Models and Indicators
*X is for 3, 4 and 5, 6 XX is for 21 and 26
MA085-X52
MA085-3XX
MA085-4XX
MA085-5XX
MA085-6XX
MA085-21X
MA085-26X
MA085-X54
MA085-X56
MA085-XX3
MA085-XX5
MA085-XX6
Series
