
I‑5039
43
20 OPERATIONAL PRECAUTIONS
(1) POWER switch reclosing procedure
To reclose the POWER switch after turning it OFF, be sure to provide a waiting period of more than 10
seconds.
(2) Blackout procedure
You are recommended to black out the display after use for the purpose of saving the display from
fading due to burn.
The blackout procedure is as follows.
1) Turn the POWER switch to OFF.
2) Turn the POWER switch to ON.
3) When the display has been totally blacked out, turn the POWER switch to OFF immediately.
If there are some segments left on display, do over again from step 1), though the user has the option
of storing the sports timer as it is because it performance will not be affected by such state.
(3) Procedure for restart after memory call
The memory can be called up after stopping or resetting the sports timer by pressing the STOP or
RESET button of the grip switch.
After memory call, press the RESET button of the grip switch to initialize the memory.
Unless the RESET button is pressed, the MODEL ST-306 will not be restarted.
(4) Buzzer
When the POWER switch is turned off, the internal buzzer may beep momentarily, but this is no
problem.
21 CARE AFTER USE
The sports timer, MODEL ST-306, is designed for outdoor use, but should not be left to take care of
itself outdoors for an extended period.
After use, wipe clean of moisture, and stow away indoors.
CAUTION
AFTER USE, BE SURE TO REMOVE THE DRY CELLS FROM THE
INSTRUMENT. FAILURE TO OBSERVE THESE PRECAUTIONS MAY
LEAD TO EXPLOSION, ELECTROLYTE LEAKAGE, AND EXOTHERMIC
REACTION OF DRY CELL, CAUSING INJURIES AND
ENVIRONMENTAL POLLUTION.