TA Instruments AR 2000, Руководство оператора

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AR 2000 Operator's Manual
7 6
Connecting and Disconnecting the Geometry Holder
WARNING: The Upper Heated Plate fixture, upper geometry holder, and the upper
geometry, may be hot. Ensure that these components are cool before attempting to
remove or replace the upper geometry holder.
ATTENTION: Le montage d’Upper Heated Plate, le support supérieur de la géométrie
et la géométrie supérieure, peuvent être chauds. Assurez-vous que ces composants
sont froid avant d’essayer d’enlever ou remplacer le support de la géométrie
supérieure.
Connecting the Geometry and Holder
To connect the upper geometry and holder follow these steps:
1. Raise the instrument head fully, using either the Rheology
Advantage™ software or the
Head UP button located on
the instrument control panel.
2. Attach the geometry to the holder, using the attaching tool
provided, if necessary. (This tool cannot be used with the
40-mm diameter geometry, which can attached to the
holder by hand.)
3. When the geometry is in place, carefully insert and posi-
tion the holder within the Upper Heated Plate, and connect
to the instrument shaft by rotating the drawrod. For Upper
Heated Plate geometries, a backoff distance of 120,000 µm is recommended.
4. Use 1.448 x 10 -3 rad/Nm for the geometry compliance, unless other information is available.
Removing the Geometry and Holder
To remove the upper geometry and holder from the AR 2000 rheometer follow these steps:
1. Raise the instrument head fully, using either the Rheology Advantage™ software or the Head UP button
located on the instrument control panel. Grasp the holder firmly, and unscrew from the instrument shaft by
rotating the drawrod.
2. Lower the geometry holder carefully until it is clear of the Upper Heated Plate.
3. When the geometry holder is free of the instrument, the geometry can be removed from the holder using the
geometry attaching tool provided, if necessary.
25 mm Geometry
Heat Spreader
Figure 7.14
Upper Geometry Holder
(Shows the cylindrical heat spreader with
a 25 mm diameter geometry in place.)