Thank you for purchasing this Barloworld
Scientific product. To get the best
performance from the equipment, and for
your personal safety, please read these
instructions carefully before use.
Barloworld Scientific 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
Before connection please ensure that the
line supply corresponds to that stated on
the rating label. Both models require a
supply rated at: 230V, 50Hz,~ , single
phase.
Power requirements:
Model
Wattage
SB161-3 150W
SB162-3 2250W
THIS EQUIPMENT MUST BE EARTHED
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 1mm
2
of harmonised code H05W-F
connected to an IEC 320 plug should be used.
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
SB162-3
The control knobs labelled “Heat” on the front
panel control the heat output and hence the
plate temperature. There is a separate control
knob for each of the 3 plates, which operate
independently of each other.
The knobs are graduated with an approximate
temperature scale. This scale refers to the
temperature of the top plates and not to the
temperature of the contents of the vessel being
heated. When the heat is switched on for any
plate an amber pilot light will illuminate next to
the control knob for that plate.
When the surface of a plate becomes too hot to
touch a red warning light on the front panel will
begin to flash next to the heat control knob for
that plate. This will continue to flash while the
plate temperature is above 50°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 325°C can be
achieved.
Do not leave heaters switched on when not in use.
Stirring
SB161-3, SB162-3
The control knobs labelled “Stir” on the front
panel control the stirrer speed. There are 3
independently controlled stirrer positions with
the centre located directly above each of the
knobs. When switched on an amber pilot light
will illuminate next to the control knob
illuminates.
1
Содержание 3 Position Hotplates & Stirrers
Страница 22: ...Notes...
