8
9
•
Turn the reactor on using the power switch located on the rear panel. The green POWER LED will be
illuminated.
•
The display briefly illuminates all message segments and then displays the heater block temperature.
•
Select the temperature according to the specific digestion procedure.
•
Press the
START
button to start the heating mode. The yellow HEATING LED will illuminate.
•
The display will show the current temperature of the heating block and the set temperature.
•
When the heating block is above 50
°
C the red HOT LED will flash.
•
The heater block warms for approximately 10-15 minutes, depending on the selected temperature.
During this period the heating indicator will remain ON continuously until block temperature is within
10
°
C of target temperature. The heater and the heating indicator will cycle OFF and ON, in order to
maintain the desired temperature.
•
When the desired temperature is reached and has stabilized, a beep will signal that vials may be placed
in the reactor. At this time the vials can be inserted into the block and the timed digestion can be started.
Press START to start the timer.
The instrument displays the current temperature, and alternately on the second row, the set point value,
and the reaction time.
Notes:
• Use of the optional safety shield is strongly recommended
to protect the operator from splattering reagents in case
a vial should break.
• Do not place the reactor near a heating or cooling source.
Temperature stability could be affected.
• In order to allow the heat transmission from the block to
the liquid inside the tubes, the temperature of the metallic
block is a few degrees higher than the set value.
• During operation, the block temperature will be slightly different for an empty block or one full of vials.
If cold tubes are placed in the block, the temperature will decrease several degrees and a few minutes
will be required to recover as the tubes warm.
• An external stainless steel probe thermometer can be used to check the block temperature, by placing
it into the appropriate receptacle.
• After inserting vials, press
START
to start the timer.
• The heating indicator will cycle ON and OFF maintaining the constant temperature.
• After the time has elapsed, the message DONE is displayed. The heating element will turn OFF, and
the samples are ready to be removed from the reactor.
• To begin another digestion, press
START
. To modify the temperature program use the
105°C/150°C
key. To change the timer value, use
▲
and
▼
keys.
DIGESTION PROCEDURE
