23
Heating for a Set Period of Time
In this mode, the user enters the amount of time to heat before turning
heating off permanently. This is useful to heat a reaction or other lab
instrument for a set period of time and then have the reaction stop heating
automatically.
While at this setting and while entering a time into the timer, no power is
applied to the heater.
Step 1.
When the timer displays “toFF”, holding
in the timer knob causes the display to change to a
clock showing 00 : 00. The left 2 digits are hours
and the right 2 digits are minutes. The minutes
digits are blinking which indicates that their value
can be changed.
Hold in the timer
knob for 1 second
Step 2.
To increase the number of minutes, rotate
the timer knob to the right. To decrease the
number of minutes, rotate the timer knob to the
left.
Rotate the knob
to enter minutes
Step 3.
To change the number of hours in the
display, momentarily press the timer knob (1/4
second) and the hours digits begin to blink. To
increase the number of hours, rotate the timer knob
to the right. To decrease the number of hours,
rotate the timer knob to the left.
Rotate knob to
enter hours
Momentarily push knob
to lock in minutes
Step 4
. When the desired time is displayed, hold
in the timer knob for 1 second to enter the time and
start the timer. When the timer starts, the LED
under the label “OFF at Zero” lights. This
indicates that power to the heater will turn OFF
when the timer counts down to zero.
Hold in timer knob for
1 second to store time
and start timer
At any time, the timer program can be aborted by
holding in the timer knob for 1 second. When this
is done, the display changes to toFF. To turn on
heating, push the timer knob twice until the display
reads On.
Push
Push
