9. Once the thermometer reaches 60% of the
expected melting point the heating controller
should be reduced to 10°C/min, by turning
the heating controller anti-clockwise.
10. Continue to reduce the heating controller so
that it is on 1°C/min when the sample is
within 15°C of the expected melt.
11. Observe the melt through the eyepiece,
while recording the temperature on the
thermometer; make a note of the melt
temperature.
12. Turn off to begin cooling, or insert the
accessory brass insert to speed up cooling.
Cleaning & Servicing
WARNING: Ensure the unit is
disconnected from the mains electricity
supply and allowed to cool before
attempting any cleaning or servicing.
Cleaning
Periodically clean the instrument using a damp
cloth and mild detergent solution. Do not use
harsh or abrasive cleaning agents.
In the event of any breakage of the thermometer
bulb or capillary tubes disconnect the unit from
the mains supply. Any debris can be removed
simply by unscrewing the dome nuts holding the
3
lens and then lifting the lens out (see Fig 7). The
instrument can then be turned upside down so
that any debris falls out. Once the lens has been
removed the chamber can be cleaned with a
damp cloth or a soft brush.
Servicing
This unit does NOT require routine servicing.
Repairs
There are no user replacement parts on this
instrument. If this unit were to stop working or
malfunction in any way, only suitably qualified
personnel should investigate the problem. Prior
to any internal repairs being undertaken a
service manual should be requested from the
Technical Service Department of Barloworld
Scientific Ltd. quoting both the model and serial
number of your product.
NB: Fuses are mounted in both the live and
neutral line.
Only spare parts supplied or specified by
Barloworld Scientific Ltd. or its agents should be
used. Fitting of non-approved parts may affect
the performance and safety features designed
into the instrument.
If in any doubt, please contact the Technical
Dept. of Barloworld Scientific or the point of
sale.
Barloworld Scientific Ltd.
Stone, Staffordshire ST15 0SA
United Kingdom
Tel: +44 (0) 1785 812121
Fax: +44 (0) 1785 813748
e-mail [email protected]
www.barloworld-scientific.com
Fig 7
Lens
Dome nuts
Heating
controller
