6
7
•
Press the
▲
, or
▼
key to increase or decrease the reaction time.
•
An infinite mode for time may also be set if the reaction time is adjusted in the way described above, until
the display shows the “-:--” message.
•
If the selected temperature program is not started within 10 seconds, the temperature screen will be
displayed.
The reactor has 2 predefined temperature profiles:
•
105 °C (221 °F)
•
150 °C (302 °F)
To choose from the available profiles:
•
At start up, the display briefly illuminates all message segments then displays the heater block tempera-
ture. The current settings are displayed (reaction time and temperature) on the second line.
•
Press the
105°C/150°C
key to select the temperature program 105°C or 150°C.
OPERATING MODES
•
Idle mode
: the default mode. While in this mode the meter measures and displays the heater block
temperature,
an IDLE
message, the target temperature and the reaction time.
•
Heating mode
: activated by the
START
key. First, the reactor will heat to the desired temperature. When
the temperature is reached and it is stable, a beep signals the user that the vials can be inserted into the
heater block. Pressing the
START
key initiates the countdown timer. A beep tone is heard also at the end of
the heating cycle, the heater is off and the block starts cooling. The heating mode will be stopped anytime if
the
STOP
key is pressed.
The instrument shows messages when special conditions occur.
Temperature Low
: Appears during the heating mode if the measured
temperature is lower than the set point. Wait for warm-up period.
Temperature high
: Appears during the heating mode if the heater block
temperature is over the set point. Wait for cooling period.
Heating system malfunctions
: Appears when the heating mode is ON
for more than 5 minutes and the temperature has not increased.
Prepare the reactor as follows:
• Place the reactor on a flat table. Do not place the instrument under direct sun light.
• Connect the reactor to a power outlet with ground. Verify the correct voltage and frequency are used.
See the label on the instrument.
• Turn the reactor ON using the power switch located on the rear panel. Wait until unit displays the
heater block temperature.
Hot surface
: Appears when the heating block temperature is over 50 °C.
ERRORS AND WARNINGS
or
TEMPERATURE SELECTION
TIMER SELECTION
STARTUP
