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2.5 Controlling the Timer
1. By default the timer (R) will be set to 00:00 and count
upwards when the heating or stirring functions are
turned on.
a)
The timer (R) begins in MM:SS mode.
b)
Once the timer reaches 59:59, it will
automatically switch to HH:MM mode at
01:00.
2. When the timer (R) is set to any time between 00:01
and 99:59, the timer (R) will count downwards from
the set time once the heating or stirring functions are
turned on.
a)
The timer (R) can only be set in HH:MM
mode.
b)
Once the timer (R) reaches 00:01 in HH:MM
mode, it will automatically switch to MM:SS
mode at 59:59.
c)
Once the timer (R) reaches 00:00 in the
countdown mode:
All heating and stirring functions will shut off.
The unit will beep 3 times.
3. To change the timer setting (R), press and hold the
right knob (D) until the timer setting (R) displays
'HH:MM'.
a)
Continue to press the right knob (D) after the
unit beeps and the Stirrer Indicator (O)
illuminates.
The stirrer will not turn on unless the right
knob (D) is released before 'HH:MM' appears.
b)
The timer setting (R) cannot be changed while
the heater or the stirrer are running.
c)
The timer setting (R) will return to the
previous timer setting and the minutes setting
will begin to blink to indicate that it can be
modified.
d)
The timer can only be set in HH:MM mode.
4. Rotate the right knob (D) to adjust the minutes
setting.
a)
Clockwise rotation will increase the time.
b)
Counterclockwise rotation will decrease the
time.
c)
The minutes setting will continue to blink to
indicate the new timer setting is not
confirmed.
d)
If the timer setting (R) remains idle without
confirmation for 6 seconds, the timer will
remain at the current setting and the unit will
exit the timer setting control.
13
vwr.com I Instruction Manual VWR
®
Professional Hotplate-Stirrers
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