YSI CR 3200 Thermoreactor - Manual (Page 21)

CR 3200 Operation
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The thermoreactor is in the program selection mode.
As soon as the thermoblock has cooled down to under 50°C, the
control lamps switch themselves off.
5.3 Stopping a temperature program
You can terminate a running program at any time.
Note
While STOP? is displayed the temperature program goes on running.
As soon as a section of the temperature program is finished (e.g. after
the end of the heating period or after the end of the reaction time), the
STOP? display is overwritten.
5.4 Temperature test program
With the temperature test program, you can check the temperature in
the thermoblock with the aid of an external temperature probe that is
available as an accessory (see chapter 9 A
CCESSORIES /O PTIONS ).
While the temperature test program is active, the display shows the
current temperature of the thermoblock and at the same time the
measured temperature value of the external temperature probe.
The thermoreactor functions correctly if the temperature of the external
temperature probe does not deviate from the nominal temperature
value by more than 2 °C.
If the deviations from the nominal value are greater, further measures
can be necessary (see chapter 7 W
HAT TO DO IF ...).
1 Using 4 6, terminate the running temperature program.
The control lamp for the thermoblock flashes red/green.
The safety query STOP? is displayed.
2 Using g confirm the safety query STOP?.
The temperature program is finished.
The control lamps of the thermoblock will then light up green.
or:
Using 4 6, leave STOP?.
The query STOP? disappears from the display. The
temperature program is continued.