VBike APT TFT 850C User manual

APT TFT 850C LCD display

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1. Product Name
TFT LCD display
Model : APT TFT 850C
1．Suppliers
TIANJIN TXED SCIENCE & TECHNOLOGY. CO., LTD.
Address: Unit A, Bldg E, Xin Mao Science & Technology Park, Hua Yuan Industrial
2．Electrical Parameters
3.2inch IPS screen
24V/36V/48V battery supply
Rated operating current : 40mA
Max operating current : 100mA (36V battery, with USB equipment changed)
USB changing port : 5V 500mA
Off leakage current < 1uA
Max output current to controller : 100mA
Operating temperature : -20～70℃, Storage temperature : -30～80℃
3．Dimensions & Material
Product shell is ABS, transparent window is made with high strength Acrylic.
Dimensions : host/L92mm*W60mm*H14mm

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4．Features
Suitable for low temperature，Max -20℃.
High-contrast 3.2inch IPS colorful matrix screen.
Ergonomic external button design, easy to operate.
Speed display : AVG SPEED, MAX SPEED, SPEED(Real-time).
Kilometer / Mile : Can be set according to customers’ habits.
Smart battery indicator : Provide a reliable battery indicator.
9-level Assist : 3-level/5-level/9-level optional.
Mileage indicator : Odometer/Trip distance/ Clock/ Riding time.
Power indicator : real time power indicator, digital or analog.
Battery information（needs to be supported by battery communication）
DST indicator（needs to be supported by battery communication）
Self-Testing
Speed limit value indicator Error code indicator.
Light sensor（Optional ）
Software upgraded : Software can be upgraded through UART.
USB charging port : 5V/500mA

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5．TFT screen instructions
6．Functional Description
6.1 Power On/Off
Press and hold button for 1 second can turn on/off the display. The Display can
automatically shut down when there is no operate & ride for X minutes（X could be 0~9
）.
*If the display has been set password power on, you need to input the right password before start.
6.2 Assist level operating
Short press button can change the assist level. Top assist level is 9, 0 for
neutral. Level quantities can be adjusted according to the customer
requirements.
Power
UP/DOWN
Battery
Brake Signal
Front Light
Clock
Power loop
Speed value
Power
Assist level
Power indicator
Mileage
Time
Speed Scale
Power Scale
LOGO
Switchover area

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6.3 Speed & Mileage mode switch
Short press button can change the speed and mileage mode,
TRIP→ODO→RANGE→TRIP→TIME→MAX SPEED→AVG
SPEED
**If there is no operation for 5 seconds, display will return Speed (Real-Time) display automatically.
6.4 Headlight/backlight On/Off
Press and hold button for 1 second can turn on/off the headlight, and the scree will
switch to the corresponding mode.
*The motor does not work when the battery voltage is low, Display still can keep the headlight on for a
while when E-bike is in riding.
Daytime mode night mode
POWER
UP

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6.5Walking mode (6km)
Press and hold button for 2 second can get into walking mode, out of the mode
when release the button.
* This feature needs to be supported by controller.
6.6 Data cleanup
Press and hold buttons together for 1 second can reset several temporary
data, temporary data include AVG Speed / MAX Speed / Trip /
Time.
* These temporary data can’t be erased by power off.
7．Parameter setting
Double press button (press interval less than 0.3 second) can get into setting
menus, press
button can
switch to next item. Double press button will exit from menu.
* Display will automatically quit menu when there is no operation for 30 seconds.
* For safety reasons, display can’t get into MENU when riding.
* Display will quit MENU when start riding.
The order of parameters are as follow.
DOWN
UP
&
DOWN
POWER
UP/DOWN
buttons to change the parameter setting, press
POWER
POWER

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8.1 Language：Default EN, Un adjustable
8.2 System : Press Up / Down button to switch between Metric / Imperial.
8.3 Brightness : Press Up / Down button to change the brightness of the backlight,
׀is darkness，׀׀׀׀׀ is brightness
Note : You can set brightness independently between Daytime mode and Night mode.
8.4 Auto off : Press UP/DOWN button to change the auto power off time, from 1 to
9/OFF, the number represent time (minutes) to shutdown, OFF means disable
auto off function, default value is 5 minutes.

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8.6 Battery Ind : Press UP/DOWN button to change the battery indicator, Voltage /
Percentage / OFF.
*Accurate percentage needs communication with battery.
8.5
Scenes
:Only Analog (default)

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Voltage Percentage OFF 8.7 Pow Ind : Press
UP/DOWN button to change the Power indicator, Power / Current.
* This data represent power output of the battery (not motor).

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8.8 Clock : Clock setting, press POWER button get into the clock setting menu,
press UP/DOWN button to set Year/Month/Day/Hour/Min/Sec.
Note : There is an battery inside to sustain clock working when display is powered off, the battery can be charged when display is
power on (riding).Battery often be exhausted after long time unused (after winter or transportation), you need to recharge the
battery as below.
Set Menu : Auto off -> OFF (make display can’t power off automatically)
Keep the display power on for 72 hours, it can charge the battery.
8.9 Start password : Press POWER button get into the password setting menu. If
you had set Start input ON, you must input right password before power on,
password is accorded to your setting.
You need to input the right password before start with 30 seconds, display will power off
automatically if the password was wrong.