Demtech Pro-Tester SE, Руководство оператора

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Rev. B, October 2020
Pro-Tester SE Operator’s Manual Page 10
5.5 Settings
a. The Pro-Tester TM requires various settings for proper operation. These settings are
easily accessed via the Menu Mode of operation. To enter the Menu Mode, make sure
the Pro-Tester
TM is on and at the main operating screen (Refer to Page 15).
Simultaneously press and hold the YES and NO buttons on the Control Panel for
several seconds. This procedure puts the system into Menu Mode. This mode of
operation allows the user the set various system parameters. For a complete listing of
all of the features refer to the diagram on page 15.
b. All of the settings required to operate the Pro-Tester TM come factory set for most users
and should not need setting. However, if your particular installation requires setting
any parameters enter the Menu Mode and follow the screen prompts to navigate the
screen menu.
c. Figure 7.1 on page 15 is a Menu Tree drawing. This drawing can be very helpful if
you are trying to find a particular function or setting you wish to access. Use the
drawing to locate the particular item you want to access. Once located, follow the
tree back to the top level. Next, utilizing the user interface on the Pro-Tester
TM ,
proceed back down through the menu structure using the drawing as a guide to access
the particular screen you want.
5.6 Elongation Definition
If you intend to use the strain (elongation) feature of the Pro-Tester
TM
tensiometer it is
important to understand both the definition of this feature/function and how it is intended
to be used. Proper understanding requires the definition of some basic terms. These
terms are defined below.
a. Grip Separation (GS ): The distance between the grip point on each of the left and
right sample grip assemblies (refer to Figure 5.5). There are two user settable
distances, A or B, which have been factory set for 1.7 and 3.5 inches respectively.
The operator must be aware of these values and change the settings if necessary (refer
to Section 5.5) to accommodate the particular sample to be tested.
b. Weld Extrusion (Squeeze-out): The area of a weld whereupon becoming molten the
parent material extrudes (is squeezed) out from between the pressure zone of the
welding tool and then cools. This extruded material does not usually provide an
acceptable bond of the parent material and should not be considered part of the weld
(refer to Figure 6C).