Bibby Sterilin Stuart CB160 User manual

Hotplates & Stirrers
CB160 CB161 CB162
SB160 SB161 SB162
Instructions for use
Manuel d’utilisation
Istruzioni per l’uso
Instrucciones de funcionamiento
Bedienungsanweisung
Version 1.1

English
Fig 1 (Front view)
Fig 2 (Rear view)
‘Hot’ warning light
IEC socket
Retort rod fitting
Heater on light
Stirrer on light
Mains on light
Thank you for purchasing this Bibby Sterilin
product. To get the best performance from
the equipment, and for your personal safety,
please read these instructions carefully
before use.

Bibby Sterilin hotplates and stirrers are designed
to operate under the following conditions:-
❖For indoor use only
❖Use in a well ventilated area
❖Ambient temperature range +5°C to +40°C
❖Altitude to 2000m
❖Relative humidity not exceeding 80%
❖Mains supply fluctuations not exceeding 10%
of nominal
❖Overvoltage category II IEC60364-4-443
❖Pollution degree 2 IEC664
❖Use with a minimum distance all round of
200mm from walls or other items
If the equipment is not used in the manner
described in this manual the protection provided
by the equipment may be impaired.
Electrical Installation
THIS EQUIPMENT MUST BE EARTHED
Before connection please ensure that the
line supply corresponds to that stated on the
rating label.
Power requirements:
Model Wattage Model Wattage
CB160 500W SB160 700W
CB161 50W SB161 50W
CB162 550W SB162 750W
There is an IEC socket at the rear of the
instrument for connection to the mains supply,
(see figure 2). The unit is supplied with two
mains leads fitted with IEC plugs for connection
to the instrument. One has a U.K. 3 pin plug
and the other has a 2 pin “Shuko” plug for
connection to the mains. Choose the lead
appropriate for your electrical installation and
discard the other.
Should neither lead be suitable, take the lead
with the U.K. plug and replace the plug with a
suitable alternative. See the enclosed instruction
sheet for advice on how to carry out this
procedure.
Should the mains lead require replacement a
cable of 1mm2of harmonised code H05W-F
connected to an IEC 320 plug should be used.
1
IF IN DOUBT CONSULT A QUALIFIED
ELECTRICIAN
The mains lead should be connected to the
instrument BEFORE connection to the mains
supply.
NOTE that when connected to the mains supply a
green neon light on the front of the unit
illuminates, (see figure 1).
Operation
Heating
CB160, CB162, SB160, SB162
The control knob labelled “Heat” on the front
panel controls the heat output and hence the
plate temperature. It is graduated with an
approximate temperature scale. This scale refers
to the temperature of the top plate and not to
the temperature of the contents of the vessel
being heated, When the heat is switched on an
amber pilot light illuminates, (see figure 1).
When the surface becomes too hot to touch a
red warning light on the front panel will begin to
flash, (see figure 1). This will continue to flash
while the plate temperature is above 70°C so
long as the unit remains connected to the
electricity supply.
WARNING: The top surface of the instrument
may be HOT In free air a surface temperature of
450°C can be achieved on the ceramic top
models and 325°C on the metal top models. Do
not leave heaters switched on when not in use.
Stirring
CB161, CB162, SB161, SB162
The control knob labelled “Stir” on the front
panel controls the stirrer speed. When switched
on an amber pilot light illuminates, (see figure 1).
The knob is graduated with an arbitrary 1-9
scale. Turning the knob to a higher number
increases the stirrer speed.

2
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.
WARNING: A ceramic top which is scratched,
chipped, chemically etched or damaged must not
be used.
Metal top units:
The metal top plate should be cleaned using a
damp cloth and a mild detergent solution.
Cleaning is made easier if spillages are attended
to promptly. In any case, spillages of acids and
alkalis MUST be removed immediately as these
chemicals can attack and damage the the surface
of the aluminium alloy. Ensure that the
appropriate safety precautions are observed.
Preparation of Media
Take particular care when heating liquids having
a high viscosity. Viscous liquids can act as thermal
insulators and can cause thermal breakage of the
glassware. This is very important with media
solutions as the viscosity will usually increase as
the temperature rises.
❖Check that the stirring action is sufficient to
agitate the whole of the liquid. Unstirred areas
in the liquid can result in uneven heat transfer
and “hot spots” in the glassware. This can
induce thermal stress and so cause failure.
❖Check the stirring action regularly to ensure
that it remains adequate as the viscosity of the
solution increases.
❖Always use the largest magnetic follower
possible and, if necessary, use a mechanical
overhead stirrer.
❖Do not use glass vessels with thick walls, e.g.
Pyrex Heavy Duty Ware or standard beakers
and flasks having capacities of 5 litres or
greater.
❖NEVER heat glass bottles on a hotplate.
❖Ensure that the heat is built up slowly to avoid
localised overheating.
❖Ensure the glassware is completely free from
scratches or other defects.
❖Place the hotplate in a tray large enough to
contain the liquid in the event of glassware
failure.
❖Wear the appropriate safety clothing - e.g.
gloves, goggles, protective apron etc.

3
Accessory
A rod is available to support apparatus used with
the instrument. The instrument is equipped with
a fitting on the rear to accept the support rod -
catalogue number SR1, (see figure 2). To fit the
rod to your instrument, first isolate from the
mains supply and allow to cool. Then simply
screw the threaded end of the support rod into
the fitting on the rear of the instrument.
Servicing and Repair
This product range does not require any routine
servicing.
Note: There are no internal user replaceable
parts.
In the event of product failure it is recommended
that any repair is only undertaken by suitably
qualified personnel. For advice or to receive a
service manual please contact the Technical
Service Department of Bibby Sterilin Ltd.
Only spare parts supplied by Bibby Sterilin or its
agent should be used. Fitting of non-approved
parts may affect the performance of the safety
features of the instrument.
Note: The magnetic stirrer drive utilises
strong magnets.
If in doubt, please contact the Technical Service
Department of Bibby Sterilin Ltd.
Tel: [phone]
Fax [phone].
E-mail: [email protected]
Spares
The following spare parts are available from your
laboratory supplier. For a comprehensive parts list
please contact the Technical Service Department
of Bibby Sterilin Ltd quoting model and serial
number.
Description Cat. No.
Control knob SB160/CK
Rubber feet, set of 4 SB160/RF
Retort rod, SR1
Warranty
Bibby Sterilin Ltd warrants this instrument to be
free from defects in material and workmanship,
when used under normal laboratory conditions,
for a period of two (2) years. In the event of a
justified claim Bibby Sterilin will replace any
defective component free of charge.
This warranty does NOT apply if,
1. A ceramic top has broken due to mechanical
impact, scratching, chipping or chemical
etching.
2. Any repair has been made or attempted other
than by Bibby Sterilin or its agent.
Bibby Sterilin Ltd
Tilling Drive, Stone, Staffordshire
ST15 0SA, United Kingdom
Tel: [phone]
Fax [phone].
E-mail: [email protected]
www.bibby-sterilin.com