Cleaning the Furnace . 57
Cleaning the Furnace
An automatic procedure for cleaning the furnace is included in the Pyris software. The
procedure involves lowering the furnace to expose it to the air and then heating it to
approximately 900 °C to burn off any materials coated onto the furnace surfaces.
WARNING:
Since the furnace will be programmed to 900 °C, make certain that
the protective furnace door is closed. DO NOT touch the furnace during this
procedure.
AVERTISSEMENT:
Comme le four sera programmé à 900 ° C, assurez-vous que
la porte du four protecteur est fermée. NE PAS toucher le four pendant cette
procédure.
1.
Start the Pyris software and make sure the Control Panel is displayed.
2.
Select the Clean Furnace icon
from the Control Panel.
3.
The furnace will move to the lowered position and programmed to 900 °C. When the
cleaning procedure is complete, the furnace will remain in the lowered position and
cool down to 30 °C.
NOTE: To abort the furnace cleaning procedure at any time, select the Cool Furnace icon.
Cleaning the Furnace Tube
In order to clean the furnace tube, you must first remove the tube from the furnace. Clean the
furnace tube using
one
of the following methods:
1.
Soak and scrub the furnace tube in a strong detergent (e.g., alconox).
2.
Soak the furnace tube in a strong solvent such as cleaning solution (e.g.,
concentrated H
2
SO
4
and K
2
CrO
7
).
WARNING:
Concentrated H
2
SO
4
and K
2
CrO
7
is a very strong, caustic acid
solution. Wear protective gloves and safety glasses and perform this procedure in
a fume hood.
AVERTISSEMENT:
H
2
SO
4
concentré et K
2
CrO
7
est une solution d'acide caustique
très forte. Porter des gants de protection et des lunettes de sécurité et effectuer
cette opération dans une hotte aspirante.
3.
Dip the furnace tube in a dilute hydrogen fluoride (HF) solution (10% solution, 5 min
maximum).
WARNING:
Hydrogen fluoride is a dangerous skin irritant. Wear protective gloves
and safety glasses and perform this procedure in a fume hood.
AVERTISSEMENT:
Le fluorure d'hydrogène est un irritant cutané dangereux.
Porter des gants de protection et des lunettes de sécurité et effectuer cette
opération dans une hotte aspirante.
4.
Rotate the furnace tube over a Bunsen burner (heat up slowly to avoid cracking).
5.
After cleaning, reinstall the furnace tube.
Содержание TGA 8000
Страница 1: ...TGA 8000 Installation and Hardware Guide THERMAL ANALYSIS...
Страница 5: ...5 Safety and Regulatory Information...
Страница 19: ...19 Prepare the Laboratory...
Страница 25: ...25 Installing the TGA 8000...
Страница 55: ...55 TGA 8000 Hardware Maintenance...
Страница 68: ...68 TGA 8000 Installation and Hardware Guide...
Страница 85: ...85 TGA 8000 Autosampler...
