Cleaning And Care - Stuart CD162 Handbuch

surface temperature of 450°C can be achieved
on the ceramic top CD162 model and 325°C on
the metal top SD160 and SD162 models. Do not
leave heaters switched on when not in use.
Use as a Stirrer
The control knob on the right hand side of the
front panel controls the stirrer speed.
To switch on the stirring function briefly press
and release the knob. Repeat to turn off the
stirring function. When switched on the icon on
the display will revolve and the display will show
the set speed.
Turning the knob clockwise increases speed from
100rpm to 1300rpm. Turning the knob
anti-clockwise decreases the speed.
Use as a Temperature Controller using the
External Probe SD162, CD162 only
These units are supplied with a temperature
probe to allow direct control of liquid
temperature. NOTE: Before attaching probe,
mains supply must be turned off.
To use the probe first insert the connector into
the socket on the rear of the instrument (see fig
2) and place the probe into the vessel containing
the liquid. Switch on the heating function by
briefly depressing the control knob. The heating
icon in the display will show indicating that the
displayed temperatures are those of the liquid
rather than the plate surface.
When switched on the display will show actual
liquid temperature at the bottom of the screen
and the set temperature directly above.
The liquid temperature can be selected and
controlled to a resolution of 1°C.
To increase the set temperature turn the knob
clockwise until the required setting is shown in
the display. To decrease the setting turn the
knob anti-clockwise.
The unit will now begin to heat until the set
temperature is reached and then will hold the
liquid at this value. The actual liquid temperature
is continuously displayed at the bottom of the
screen.
Note that the maximum liquid temperature is
limited to 200°C.
2
Guidance Notes
1. For optimum temperature control please
ensure the contents of the beaker are stirred
adequately.
2. Keep the unit out of strong drafts.
3. Allow the temperature adequate time to
stabilise.
Safety Advice
❖ Do not use the instrument to heat
inflammable liquids.
❖ Never lift or carry the instrument until it has
been switched off and allowed to cool for at
least 30 minutes. The hot warning light will
give guidance.
❖ The unit should be carried using both hands
with the fingers under the side edges.
❖ Never move or carry the unit with containers
on the top plate or while still connected to the
mains supply.
❖ There is a danger of liquid spillage if
containers are over-filled and stirred at high
speed. Always build stirrer speed slowly and
never stir more rapidly than necessary.
❖ NEVER place a cold glass vessel onto a
hotplate which is already hot.

Cleaning and Care

Before attempting cleaning:-
Ensure that the top is cool
Disconnect from the mains electricity supply.
The metal casing should be cleaned using a
damp cloth and a mild detergent solution.
Ceramic top units:
A damp cloth will normally remove most types of
contamination. For more difficult stains a
domestic cream cleanser is recommended.
Cleaning is made easier if spillages are attended
to promptly. In any case, spillages of alkali,
phosphoric acid and hydrofluoric acid MUST be
removed immediately as these chemicals can
attack and damage the glass ceramic. Ensure
that the appropriate safety precautions are
observed.
During cleaning and general operation take care
not to scratch the surface of the top plate as this
could result in subsequent thermal breakage.