SKMEI 1488 Watch Manual

◆SKMEI 1488 Solar Watch Instruction

（SKMEI 1488 Solar watch button）

A. Features

• Time Display: Display Hour, Minute, Second, Year, Month, Date,12H/24H format selectable
• World time
• Pedometer
• 2 Alarm clock and Chime hourly
• Stopwatch, 100 groups of LAP
• Countdown
• Pacer/Metronome
• Battery reminder
• EL backlight
• Digital compass
• Solar power assistance function

Note：This watch is powered by solar power technology, low-carbon and environmentally-friendly solar energy. It has strong power and long-lasting endurance. solar energy can be automatically received and operated by light energy. It does not need to use the battery power, the battery power will only be used when there is no light. When the built-in battery of watch exhausted, the watch can still be powered by solar energy.

B. Operational Manual

Press K3 key to switch the mode
In any mode, press K4 key to turn on EL backlight for 3s

1.Normal time mode

Keys operation：

• [K1] key : short press switch to week setting and local city name display
• [K2] key : Invalid
• [K3] key : Short press to enter world time setting mode , Long press 2s to enter time setting mode
• [K4] key : turn on EL backlight

Notes：

• 1. Keep pressing K3 2s to enter the setting interface, >0.5s, Hold will be flashing in 2HZ
• 2. In normal case, seconds mode flashes by 1 HZ

Time setting：

Keys operation：

• [K1] key : Short press to increase the setting item’s value orderly, Long press for 2s to increase rapidly by 8HZ
• [K2] key : Short Press to decrease the setting item’s value orderly, long press for 2s to decrease the value rapidly by 8HZ
• [K3] key : Short press to switch the setting item, long pressing for 2s to exit the mode
• [K4] key : Turn on EL backlight for 3s

Notes：

• 1.The mode switch’s order is: Local City->DST->Second->Minute->Hour->Year->
• Month->Date->Month-Date/Date-Month Display->12H/24 Hour->LCD Lightness
• ->Sound setting->City setting
• 2.The setting item and Set point flashes by 2HZ
• 3.It will exit the mode if no operation within 1 minute

2. World time setting

Keys operation：

• [K1] key：Short press to switch cities eastward
• Long pressing for 2s to switch cities rapidly
• [K2] key：Short press is invalid,
• Long press for 2s to start/stop DST
• [K3] key：Switch to pedometer mode
• [K4] key：Turn on EL backlight

Notes：

• 1.“WT” is displayed first when switching to the world mode, and the current city code is displayed after 1s
• 2.Cannot turn on/off daylight saving time (DST) when UTC is selected as World Time City
• 3.The standard time/summer time setting only affects the currently selected time zone, and other time zones do not affect

3. Pedometer setting

Keys operation：

• [K1] key：switch alternately：step number->calorie->distance->sport time->step number
• [K2] key：Short press is invalid
  Long press for 2s to start/stop pedometer
• [K3] key：Short press to switch to history query mode
  Long press for 2s to enter the setting mode
• [K4] key：Turn on EL backlight
  Long press for 3s to clear the day's step record

Notes：

• 1.The step counter is displayed when the pedometer function is turned on.
• 2.[K1] key switch alternately：step number->calorie->distance->sport time->step number

 

• 3.Long press K2 key for 2s under step count mode to turn on/off the pedometer function.

Setting status：

Keys operation：

• [K1] key：Short press to increase the setting item’s value orderly
  Long press for 2sto increase rapidly by 8HZ
• [K2] key：Short Press to decrease the setting item’s value orderly
  Long press 2s to decrease the value rapidly by 8HZ
• [K3] key: Short press to switch setting items alternately: unit->footstep->weight->unit
  Long press for 2s to exit the setting mode
• [K4] key：Turn on EL backlight for 3s

Notes：

• 1.The setting item and Set point flashes by 2HZ
• 2.It will exit the mode if no operation within 1 minute

4. History query mode

Keys operation：

• [K1] key：If there is data, the day’s data is switched; if there is no data, press the button is invalid.
• [K2] key：If there is data, this watch can record 7 days’ sport data; if there is no data, press the button is invalid.
• [K3] key：Switch to alarm mode
• [K4] key：Turn on EL backlight for 3s

Notes：

• 1.On history record screen, press [K1] key to view the history sports record alternately.
  
• 2.Press [K1] key to switch alternately cycle through the history screen of a certain day.
  

5. Alarm setting

Keys operation：

• [K1] key：Switch alternately: AL1->AL2->Chime->AL1
• [K2] key：Turn on/off alarm switching（Chime hourly switching）
• [K3] key：Short press to switch the Stopwatch mode
  Long press for 2s to enter setting mode
• [K4] key：Turn on EL backlight

Notes：

• 1.When the alarm reaches the setting time, it will ring for 30 seconds by 3HZ
• 2.It will return to dual time display if no operation within 5 minutes

Setting status：

Keys operation：

• [K1] Key : Short Press to increase the setting item’s value orderly
  Long press for 2s to increase rapidly by 8HZ
• [K2] Key : Short Press to decrease the setting item’s value orderly
  Long press 2s to decrease the value rapidly by 8HZ
• [K3] Key : Short press to switch setting items alternately：Hour->Minute->Hour
  Long press to exit the setting mode
• [K4] Key : Turn on EL backlight

Notes：

• 1.When enter the alarm setting, this watch will turn on the alarm automatically, the setting item and Set point flashes by 2HZ
• 2.It will exit the mode if no operation within 1 minute

6. Stopwatch mode

Keys operation:

• [K1] key: Start/Suspend stopwatch
• [K2] key: When stopped, short press is invalid; when running, choose a set of Lap
  Hold K2 2s to reset stopwatch
• [K3] key: switch to countdown mode
  When Lap appears, long press 2S to enter the query
• [K4] Key: EL backlight for 3s.

Notes：

• 1.When Stopwatch stopped,the nearest point will flash.
• 2.When stopwatch stopped,if you do not perform any button within five mins, the watch will automatically exit from setting,and then return to normal time mode.
• 3.When choosing a set of Lap, it would display "LAP+1" and flash after 15s.

Lap Operation Status:

Keys operation:

• [K1] key:Short pressing to check next set of LAP
  Long press for 2s to quickly view, and stop it when reach the TTL 
• [K2] key:Short pressing to check previous set of LAP
  Long press for 2s to quickly view, and stop it when reach the TTL 
• [K3] key:Short pressing to switch to countdown mode
  Long press for 2S to exit viewing mode and return to Stopwatch Mode.
• [K4] key:EL backlight

7.Countdown mode

Keys operation:

• [K1] key: Start/Suspend countdown function
• [K2] key: When countdown running, K2 key is invalid; When stopped, reset Stopwatch mode 
• [K3] key:Short pressing to switch to Pacer/Metronome mode
• Long press for 2S to enter the setting mode
• [K4] key:EL backlight

Notes：

• 1. When stopwatch stopped,if you do not perform any button within five mins, the watch will automatically exit from setting, and then return to normal time mode.

Setting status：

Keys operation:

• [K1] key:Short press the setting item plus 1
  Raise by 8Hz per second after pressing button 2s
• [K2] key:Long press the setting item subtract 1
  Reduce by 8Hz per second after pressing button 2s
• [K3]key: Short pressing to switch to setting item cyclically:Hour->Minute->Second->Hour
  Long press for 2S to exit the setting mode
• [K4] key: EL backlight

Notes:

• 1.Enter into Countdown Mode setting automatically restores the initial value, the setting item and the Set point flash by 2HZ.
• 2.Long press [K3] 2S to enter, When exit the setting, Hold it will flash by 2HZ.
• 3.In Setting Mode,if you do not perform any button within one minute, the watch will automatically exit from setting, and then return to normal time mode.

8. Metronome mode

Keys operation:

• [K1] key:Start/Suspend Pacer/Metronome
• [K2] key:Short press is invalid
• Long press for 2S to reset metronome
• [K3] key:Short pressing to switch to Compass Mode
• Long press 2S to enter the Setting Mode (can also enter during operation)
• [K4] key:EL backlight

Notes:

• 1.Metronome frequency is 30-180
• 2.When the metronome is turned on, switch the mode, and the beat reminder is not activated; if switch to the metronome or the Stopwatch Mod (Running seconds), it also ringing reminds.
• 3.Timer auto recounts from zero if it reach to the max number 99999.

Setting status：

Keys operation:

• [K1] key:Short press the setting item plus 1
  Raise by 8Hz per second after pressing button 2s
• [K2] key:Long press the setting item Subtract 1
  Reduce by 8Hz per second after pressing button 2s
• [K3] key:Short press is invalid
  Long press for 2S to exit the setting mode
• [K4] key:EL backlight for 3s

9. Compass mode

Normal display：

Keys operation:

• [K1] key:When the measurement status is invalid and IDLE stops measuring, it would restart measurement
• [K2] key:When measurement status turns on/off the display angle in the reverse direction and IDLE stops measuring,it would restart measurement.
• [K3] key:Short press to switch to time mode
  Long press for 2S to enter into Compass Setting Mode
• [K4] key:The measurement status lights up the backlight, and when IDLE stops measuring,it would restart measurement

Notes:

• 1.It will stop measurement automatically if you do not perform any button within 60s,and you could press any keys to restart measurement.

Setting status：

Keys operation:

• [K1] key:Start/stop correction when CAL is setting.
• When setting the magnetic declination, short press then angle angle plus 1 and long press for 2S to set it quickly.
• [K2] key:Start/stop correction when CAL is setting.
  When setting the magnetic declination, short press then angle angle subtract
  1 and long press 2S to set it quickly.
• [K3] key:Short pressing to switch setting items: CAL->DEC->CAL(circulation)
  Long press 2S to exit the setting state
• [K4] key:EL backlight

Notes:

• 1.When setting the compass correction (CAL), the clockwise or counterclockwise rotation after starting. After two laps rotations, press and hold Mode 2S to exit and confirm correction.
• 2.Setup declination range: -90 to 90, press button to stop when it reach to maximum or minimum

10. Sensor power-on detection

Function description：
At power-on, if the MCU communicates with the sensor abnormally, there is a corresponding error display.
If the step counter IC and the MCU communicate abnormally, the dot matrix displays "ERR1"
If the compass IC and the MCU communicate abnormally, the dot matrix displays "ERR2"
The above abnormal display shows 2s, then enter the time mode.
If the communication is normal, no error is displayed and the time mode is entered directly.

11. Comprehensive description

1. When setting the magnetic declination, when set to ”+”, the display angle is the measured angle plus the correction angle. When set to “-” , the display angle is the measured angle subtract the correction angle.
 2.Step sleep
After the step is turned on, if there is no stepping or standing still in one minute, the step counting function will enter the sleep state to save power, and swinging or walking will exit the sleep state.
3.Compass test
Test once in 250ms, select the average of the last two values
4. Low power detection
 Detect once every hour
 Detect low battery at 59 minutes and 55 seconds