VWR 61161-340 Manual Del Usuario página 3

3. The count-up is shown on the lower portion of the display. When 19:59:59 is reached, the timer
will return to 00:00:00 and begin counting up again.
Counting Down
1. Place the unit in the timer mode by sliding the CLOCK/TIMER switch to TIMER. Slide the switch
to T1 to set channel 1 and to T2 to set channel 2. Slide SET/LOCK switch located on the back of
unit to SET.
2. Press HR, MIN, and SEC keys until desired time is reached. Press MEMORY key once.
"MEMORY" will appear on the display. Slide SET/LOCK switch to LOCK. Recall stored time
period, press MEMORY key.
3. Press the START/STOP key once to start timing. Press the START/STOP key a second time to
pause the timing (time-out). Press the START/STOP key again to resume timing. Any number of
time-outs may be taken. Press CLEAR while the timing is paused to reset the unit to 00:00:00.
4. The upper portion of the display will show channel one. The lower portion of the display will show
channel two. To display both channels simultaneously, slide the CLOCK/TIMER switch to the
TIMER 1 & 2 position.
5. When 00:00:00 is reached, the timer will alarm and begin counting up. "TIME'S UP" will flash in
the upper left portion of the display for the appropriate channel. To silence the alarm and stop the
count-up, press the START/STOP key.
Low Battery
Erratic readings, a faint display, or no display are all indicators that the battery is low and needs to be
replaced. To replace the battery, remove the battery cover located on the back of the unit and insert a
new AAA battery. Incorrectly installed batteries may damage electronics. Replace the Battery Cover.
All Operational Difficulties
If this timer does not function properly for any reason, please properly replace the battery with a new
1.5V AAA alkaline battery (see Low Battery section). Low battery power can occasionally cause any
number of "apparent" operational difficulties. Replacing the battery with a new fresh battery will solve
most difficulties.
Equipment disposal
This equipment is marked with the crossed out wheeled bin symbol to indicate that this equipment
must not be disposed of with unsorted waste. Instead it's your responsibility to correctly dispose of
your equipment at lifecycle -end by handling it over to an authorized facility for separate collection
and recycling. It's also your responsibility to decontaminate the equipment in case of biological,
chemical and/or radiological contamination, so as to protect from health hazards the persons involved
in the disposal and recycling of the equipment. For more information about where you can drop off
your waste of equipment, please contact your local dealer from whom you originally purchased this
equipment.
VWR Collection Manual ver 1, rel 1 02.05.2017