Buchi R-210, Operation Manual

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6 Operation
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R-210/215 Operation Manual, Version B
6.1.3 Switching the B-491 from oil bath mode to water bath mode
To switch the heating bath from oil bath mode to
water bath mode, proceed as follows:
Switch off the heating bath.
Turn the adjusting knob to any position except
for 0 °C or 180 °C.
Switch on the heating bath.
As soon as the temperature is indicated on
the display, turn the knob to the 0 °C position
within 3 seconds. The indication “WATER” will
now appear on the display.
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Fig. 6.2: Display in water bath mode
NOTE
In water bath mode, the heating bath can be operated with both water or oil.
A setting up to 95 °C is possible in water bath mode.
6.1.4 Selecting the set temperature
With this setting you can ensure, that the heating bath temperature cannot be changed during the
distillation process.
To carry out the setting, proceed as follows:
Switch off the heating bath.
Turn the adjusting knob to the 180 °C / 95 °C (max) position.
Switch on the heating bath. The set temperature setting fl ashes in the display.
Turn the knob within 10 seconds to the desired set temperature, e.g. 60 °C and wait until the set
temperature setting stops fl ashing.
This temperature is now kept whenever the heating bath is switched on and cannot be changed with
the adjusting knob anymore.
6.1.5 Changing / switching off the set temperature
To change or switch off the set temperature, proceed as follows:
Switch off the heating bath.
Turn the adjusting knob to the 0 °C (min) position.
Switch on the heating bath. The set temperature setting is now deleted and the temperature can
be selected via the knob again.
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