YSI CR 4200 Thermoreactor - Manual (Page 22)

Operation CR 4200
22 ba76121e01 09/2012
5.4 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.
5.5 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 selected 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 ...).
Note
The external temperature probe has the same accuracy as the internal
temperature sensor.
1 Using 4 or 6 terminate the running temperature program for
the thermoblock to be stopped.
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 lamp of the thermoblock will then light up green.
or:
Using 4 or 6 leave STOP? for the thermoblock to be
stopped.
The query STOP? disappears from the display. The
temperature program is continued.