King-Meter Digital II-LCD User manual

KING-METER
USERS GUIDE
Digital II –LCD
English

I
Contents
Preface............................................................................................... 1
Appearance and Size .........................................................................2
Material and Color ....................................................................2
Function Summary and Button Definition........................................3
Function Summary ....................................................................3
Normal Display Area..................................................................4
Button Definition....................................................................... 4
Operation Cautions ...........................................................................5
Installation Instruction ......................................................................5
Standard Operation........................................................................... 6
Power On/Off ............................................................................6
Display Interface........................................................................ 6
Walk Assist.................................................................................7
Turn on Backlight....................................................................... 8
PAS level Selection.....................................................................8
Battery Indicator........................................................................9
Error code..................................................................................9
Users Setting....................................................................................10
Preparation before Starting up ...............................................10
General Setting........................................................................10
Trip Distance and Trip Time Clearance....................................10
Backlight Brightness ................................................................11
Exit Setting............................................................................... 11
Password Setting .....................................................................11

II
Password Enable ..................................................................... 12
Password Modification............................................................12
Using Parameter Setting ......................................................... 13
Wheel Diameter Setting..........................................................14
Speed Limit Setting .................................................................14
Personalized Parameter Setting......................................................15
Personalized Setting Password Input......................................15
Battery Indicator Setting .........................................................16
Pedal Assist Parameter Setting ...............................................17
Pedal Assist Level Option ................................................17
Pedal Assist Ratio Modification ......................................17
Controller Over-Current Cut Setting .......................................18
Pedal Assist Sensor Setting .....................................................19
The Direction of Pedal Assist Sensor Setting ..................19
The Sensitivity of PAS Sensor Setting..............................19
PAS Sensor Proportion Parameter Setting......................20
Speed Sensor Selection...........................................................20
Throttle Function Setting (optional) .......................................21
Throttle Walk Assist Enable/Disable(optional)...............21
Throttle Vector Enable/Disable(optional).......................21
System Setting .........................................................................22
Delay Time Setting of Battery Power ..............................22
Max Speed Limit Setting .................................................22
Button Walk Assist Enable Setting ..........................................23
Walk Assist Speed Setting ...............................................24
Slowly Start up Setting ....................................................24
Exit Setting............................................................................... 25

III
Recover Default Setting...................................................................25
FAQ and Questions..........................................................................26
Quality Warranty and Coverage......................................................27
Circuit Block Diagram ......................................................................28
Software Version .............................................................................29
Appendix 1: Error Code...................................................................30
Appendix 2: Password Table............................................................30
Appendix 3: Personalized Parameter Setting..................................31
Continue Appendix 3:..............................................................32
Appendix 4: Pedal Assist Proportion default value.........................33

1
Preface
Dear users,
To ensure better performance of your e-bike, please read through
the Digital II-LCD product introduction carefully before using it. We
will use the brief words to inform you of all the details（including
hardware installation, setting and normal use of the display）when
using our display. Meanwhile, the introduction will also help you
solve possible confusion and barriers.

2
Appearance and Size
Material and Color
Digital II-LCD housing material: PC. And the color of housing is
black. Working temperature scope: -20℃—+60℃, the shell
material can ensure normal use and good mechanical performance
of the products
Display Size and Installation Size（Unit：mm）

3
Function Summary and Button Definition
Function Summary
Digital II-LCD offers plenty of functions and showing to meet your
requirements.
◆Battery indicator
◆Speed（Including real time speed, Max speed and Average
speed）
◆Distance (Including single Trip distance, ODO）
◆Trip time
◆Walk assist
◆Turn on Backlight
◆Error code
◆Multiple parameter setting
◆Recover default parameter setting

4
Normal Display Area
Digital II-LCD Normal display interface
Button Definition
The display with three buttons as below diagram, in the following
introduction，is named as MODE, is named as
UP, is named as DOWN.

5
Operation Cautions
Be careful during use, do not plug in and out the connector of
display when electrified.
Avoid collision.
Please do not tear off the stickers to avoid water infusion.
Please do not modify system parameters to avoid
parameter disorder.
Make the display repaired immediately when not working
properly.
Installation Instruction
Fix the display on the handlebar, adjust the angel. Plug the two
connectors from display and controller when off power supply.

6
Standard Operation
Power On/Off
Hold MODE button to start display and supply power to the
controller, E-bike start to work. When at working state, press and
hold MODE to shut off E-bike power. In the off state, the display no
longer uses the battery's power supply; leakage current is less than
1uA.
If do not use E-bike for more than 10 minutes, the display
will turn off automatically.
Display Interface
After turning on display, it shows real time speed. Shortly press
MODE to switch speed information, showing as real time speed
(unit Km/h)→average speed (unit Km/h)→Max Speed (unit
Km/h)→real time speed.
Real time speed Average speed Max.speed