Viewing The Face In The Dark - Casio 3541 Operation Manual

Charging Time Guidelines
●
The table below shows guidelines for
approximate charging times.
Charging Times Required for 1 Day of
Operation
Approximate
Light Level (Lux)
Charging Time
50,000 8 minutes
10,000 30 minutes
5,000 48 minutes
500
Charge Recovery Times
Sunny day, outdoors (50,000 lux)
●
Dead battery Medium
n
charge
Medium charge High
n
charge
High charge Full charge
n
Sunny day, near a window (10,000 lux)
●
Dead battery Medium
n
charge
Medium charge High
n
charge
High charge Full charge
n
Overcast day, near a window (5,000 lux)
●
Dead battery Medium
n
charge
Medium charge High
n
charge
High charge Full charge
n
Indoor fluorescent lighting (500 lux)
●
Dead battery Medium
n
charge
Medium charge High
n
charge
High charge Full charge
n
Note
Actual charging time depends on the
●
charging environment, watch settings,
and other factors.
Watch Operation Guide 3541
Power Saving Function
●
Leaving the watch in a dark location for about
one hour between the hours of 10 p.m. and 6
a.m. will cause the display to go blank, and the
watch to enter Level 1 power saving. If the
watch is left in this condition for six or seven
days, the watch will enter Level 2 power
saving.
Power Saving Level 1 :
Digital display goes blank to save power. The
watch can connect with a phone at this level.
8 hours
Power Saving Level 2 :
Digital display goes blank to save power. All
functions are disabled.
Recovering from Power Saving Operation
3 hours
Use one of the operations below to exit power
saving.
35 hours
Press any button.
●
10 hours
Move the watch to a bright location.
●
Trigger auto light by angling the watch
●
towards your face.
10 hours
Note
132 hours The watch will not enter power saving
●
in the cases below.
36 hours
Alarm Mode
ー
While in the Stopwatch Mode
ー
While in the Timer Mode
ー
You can enable or disable Power
●
16 hours
Saving.
Configuring Power Saving
l
Function Settings
214 hours
Note that the watch also may enter
●
58 hours
power saving if its face is blocked from
light by your sleeve while you are
wearing it.
209 hours
-
-

Viewing the Face in the Dark

The watch has a light that illuminates the face
for viewing in the dark.
To illuminate the face manually
●
Press (B) to turn on illumination.
Illumination will turn off automatically if an
●
alarm starts to sound.
Important!
Frequent use of illumination will run
●
down the battery.
Note
Display illumination is disabled when
●
any one of the conditions below exists.
Alarm, timer alert, or other beeper
ー
sounding
Time calibration reception in
ー
progress
To illuminate the face when Auto Light
●
is enabled
If Auto Light is enabled, face illumination will
turn on automatically whenever the watch is
positioned at an angle of 40 degrees or more.
40
degrees
or more
8