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WARNING: Cryogenic blow back possible if dewar is rapidly filled with liquid nitrogen. Fill par-
tially and allow for initial boil-off prior to filling completely.
AVERTISSEMENT: Possibilité de projections de gaz très froid si le Dewar est rapidement rempli
avec de l'azote liquide. Remplir partiellement et permettre une évaporation initiale avant de rem-
plir complètement.
1
Wear goggles or a face shield, thermally insulated gloves large enough to be removed easily, and a
rubber apron. For extra protection, wear high-topped, sturdy shoes, and leave your pant legs outside the
tops.
2
Transfer the liquid slowly to prevent thermal shock to the equipment. Use containers that have satisfactory
low-temperature properties. Ensure that closed containers have vents to relieve pressure.
Thermal Safety
DANGER: Source instrument surfaces can be hot enough to cause discomfort when in contact
with the skin during a sample run. If you are conducting a subambient test, cold could also
cause injury. After running any type of experiment, you must allow the DXF system to return to
near room temperature before you touch the inner furnace surfaces. Always use the available
software monitor to display temperature even after the termination of the test cycle.
DANGER: Les surfaces de l'instrument source peuvent être assez chaudes pour provoquer un
malaise au contact de la peau pendant l'analyse d'un échantillon. Si vous effectuez un essai à
basse température, le froid peut également provoquer des blessures. Après avoir effectué un
type d'expérience quelconque, vous devez laisser le système DXF revenir à la température
quasi ambiante avant de toucher les surfaces internes de la four. Utilisez toujours le moniteur
logiciel disponible pour afficher la température même après la fin du cycle d'essai.
WARNING: In the event of a power failure, do NOT open the furnace.
AVERTISSEMENT: En cas de coupure de courant, N'ouvrez PAS le four.
If the power has not come back on after a power failure, do NOT open the furnace. The temperature con-
trollers will not be displaying a temperature so you will not know what the temperature is inside the fur-
nace.
The test is over once a power failure occurs. This is no recovery method to restart the test at that point, but
all data is saved up until the power failure occurs.
Do not press any buttons on the front panel after a power failure, just start a test normally. If the test was
running under vacuum, verify the vacuum.
Chemical Safety
WARNING: Do not use hydrogen, oxygen, or any other explosive gas in the DXF system. Only
inert gas, such as nitrogen or argon, should be used.
AVERTISSEMENT: N'utilisez pas d'hydrogène, d'oxygène ou tout gaz explosif dans le système
DXF. Seuls les gaz inertes comme l'azote ou l'argon doivent être utilisés.
DXF Getting Started Guide
Page 8
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