KUMA K5248 User manual

USERS GUIDE
K5248 LCD
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Content
Preface......................................................................................................................................................... - 3 -
1. Appearance and Dimensions................................................................................................................... - 4 -
1.1Material and Color ............................................................................................................................. - 4 -
2.Function and Button Definition................................................................................................................ - 4 -
2.1 Function description ......................................................................................................................... - 4 -
2.2 Normal Display Content .................................................................................................................... - 5 -
2.3 Button definition ............................................................................................................................... - 5 -
3. Note for Users ......................................................................................................................................... - 5 -
4.Normal Operation .................................................................................................................................... - 6 -
4.1 On / Off ............................................................................................................................................. - 6 -
4.2 User interface.................................................................................................................................... - 7 -
4.3 Main interface switch.............................................................................. Error! Bookmark not defined.
4.4 Walk Assist Mode.............................................................................................................................. - 7 -
5.5 PAS Level Selection............................................................................................................................ - 8 -
4.6 Battery Indicator ............................................................................................................................... - 8 -
4.7 Reset Trip................................................................................................. Error! Bookmark not defined.
4.8 Lights turn on/off indication ............................................................................................................. - 8 -
4.9 Error code indication......................................................................................................................... - 8 -
5.User Settings ............................................................................................................................................ - 9 -
5.1Battery setting information interface................................................................................................. - 9 -
5.2 Wheel size setting ........................................................................................................................... - 10 -
5.3 Speed limit setting .......................................................................................................................... - 10 -
5.4 Backlight brightness ................................................................................ Error! Bookmark not defined.
5.5 Display Unit Setting (Metric / Imperial) .......................................................................................... - 11 -
5.6 Password setting information interface .......................................................................................... - 11 -
5.7 Password modifaction interface...................................................................................................... - 12 -
5.8 Version information interface ......................................................................................................... - 12 -
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6.FAQ ......................................................................................................................................................... - 13 -
7.Quality Assurance and Warranty Scope ................................................................................................. - 13 -
8.Version number ................................................................................................................................... - 14 -
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Preface
Dear user, to ensure better performance of your e-bike, please read through the K5248 product
introduction carefully before using. We will use the most concise words to inform you of all the
details (including the hardware installation, setting and normal operation use of the display) when
using our display. Meanwhile, the introduction will also help you to solve possible confusion and
barriers.
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1. Appearance and Dimensions
1.1Material and Color
K5248 products are made of PC material and aluminum alloy stem. Under the temperature of -20 to
60℃, the shell material can ensure normal usage and good mechanical performance.
Dimension（unit：mm）
2.Function and Button Definition
2.1 Function description
K5248 provides you with a variety of function modes, to meet your riding needs.
Its functions are as follows:
◆Battery power indication
◆Speed indication (including Max Speed and Average Speed)
◆Distance (including single trip distance and ODO display)
◆Walk assist & Headlight indication
◆Error code indication
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◆Various setting parameters
2.2 Normal Display Content
K5248 Normal Display Interface
2.3 Button definition
There are 3 buttons on K5248, in the following introduction, is named as “MODE”；
named as “UP” and is named as “DOWN”.
3. Note for Users
Be care of the safety use. Don’t attempt to release the connector when battery is on powe r.
Try to avoid hitting.
Don’t split the waterproof sticker to avoid affecting the waterproof performance.
Don’t modify system parameters to avoid parameters disorder.
Make the display repaired when error code appears.
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4.Normal Operation
4.1 On / Off
Long press “MODE” button, then type in password “8888”, the display will work normally. And the
controller will power on at the same time. With the display on, long press “MODE” button, the display
will shut down, the display will leave off battery, the leakage current of display on is less than 1μA.
Start Logo
Password interface
If the e-bike is not used for more than 10 minutes, the display will automatically shut down.
If the password is forgotten, Please use “6688” as the universal password.
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4.2 User interface
Normal display interface
After the display is turned on, it will display the real-time speed by default. The PAS level is displayed
in the lower right corner of the screen, the Single Trip distance (unit: km) and the Odometer (unit: km)
are displayed in the middle position, and the percentage of battery power is displayed at the top.
Short press “MODE” button to switch the riding data in the main interface (TRIP/ODO,MAX/AVG
Speed)
4.3 Walk Assist Mode
Press and hold the “DOWN” button for 2 seconds to enter the Walk assist mode. The E-bike will travel
at a constant speed of 6km/h.
Walk assist mode interface
Walk Assist function can only be used as pushing the e-bike by hands. Please don’t use this
function when riding.
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4.4 PAS Level Selection
Short press the "UP" or “DOWN” button to switch the PAS level, the motor output power will be
changed accordingly by the PAS level of E-bike. The default range of PAS level is 0-5 levels. Level 1 is
the lowest output level, and the level 5 is the highest output power level of the motor. The default
level is level 1.
4.5 Battery Indicator
The battery power is shown as a percentage bar. When the battery is fully charged, the power bar
shows 100%
Battery indicator
4.6 Lights turn on/off indication
Long press "UP" button to turn on head light. Long press "UP" button again to turn off the head light.
Light indication interface
4.7 Error code indication
When the e-bike electronic control system fails, the display will automatically indicate the error code.
For the definition of detailed error codes, see appendix 1.
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Error interface
5.User Settings
When there is no speed in the power on state, press and hold the “UP” and “DOWN” button at the
same time for 2 seconds, and the display will enter the setting interface. Press “MODE” button to select
display settings. Long press “MODE” button to save and exit the setting interface.
5.1 Backlight brightness
Through “UP” and “DOWN” button, the backlight brightness parameters can be changed. Short press
or long press “M” to exit and save the settings.
Back light setting interface
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5.2 Wheel size setting
The settable values are: 16, 18, 20, 22, 24, 26, 700C, and 28 inch. Select the corresponding wheel
diameter of the E-bike through “UP” and “DOWN” button to ensure the accuracy of the speed display
and mileage display. Short press “MODE” button to confirm and switch to next setting option.
Wheel size setting interface
5.3 Speed limit setting
The setting range of the maximum speed setting is 12km/h to 40km/h, the default value of speed
limit is 32km/h. It can be set by pressing “UP” and “DOWN” button. Short press “MODE” button to
confirm and switch to next setting option
Speed limit setting interfface
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5.4 Display Unit Setting (Metric / Imperial)
The setting parameters are Metric and Imperial. Km/h or Mile/h can be selected by pressing “UP” and
“DOWN” button. Km/h means the unit is metric system, and Mile/h means the unit is Imperial
system. The default unit is metric. Short press “MODE” button to switch to next setting option
Indication unit setting interace
5.5 Auto shut down time setting
The setting range of the auto shut down time setting is 5min to 60min, the default value is 5min. It
can be set by pressing “UP” and “DOWN” button. Short press “MODE” button to confirm and switch
to next setting option
Auto shut down time setting interface
5.6 Password setting information interface
This setting interface includes two setting items: whether to turn on the POWER ON password
option and change the password. You can change the presence or absence of the boot password
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through UP/DOWN.
Setting POWER ON password option interface
5.7 Password modifaction interface
Enter the password you want to modify in this interface, and then briefly press the M button to exit
the password modification.
Modify power on password interface
5.8 Version information interface
This interface shows software version number, which is usable for later display maintenance.
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Version information interface
6.FAQ
Q: Why can’t turn on the display?
A: Please check whether the battery is turned on or the leakage lead wire is broken
Q: How to deal with the error code display?
A: Contact the e-bike maintenance station in time.
7.Quality Assurance and Warranty Scope
I, Warranty Information:
1, King-Meter will be responsible for all faults arising during normal operation that are caused by a
quality defect.
2, The warranty time is 24 months from the day the display leaves the factory.
II, The following are not covered by warranty:
1, Shell opened.
2, Connector damaged.
3, After display out of factory, the shell is scratched or damaged.
4, Lead wire of display scratch or break.
5, The fault or damage is caused by the force majeure (such as fire, earthquake, etc.) or natural disasters
(such as lighting, flooding, etc.)
6, Product exceeded warranty period.
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8.Version number
The instruction manual of this display is the operation manual of the general software version
(version 1.0) of Tianjin King-Meter Technology Co., Ltd. The version of the display software used on
some vehicles may be slightly different from this manual, and the actual version used shall prevail.
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Appendix 1：Error Code Definition
Error Code Definition
21 Current Abnormal
22 Throttle Abnormal
23 Motor phase problem
24 Motor Hall defect
25 Brake Failed
30 Communication Abnormal
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