Checkline TI-007DLX, Руководство по эксплуатации

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7.0 VELOCITY GAUGE
7.1 Velocity Gauge (VX)
The TI-007DLX includes a function to convert the unit into a dedicated velocity gauge.
With this feature enabled, the TI-007DLX will display all measurements in terms of
velocity, inches per microsecond (IN /μs) or meters per second (M /s), rather than
dimensional inches or millimeters. This is primarily useful for rudimentary “nodularity”
testing, as the velocity can be associated with density and used to determine the
hardness/strength of a given material. A casting manufacturer would typically use this
feature to control their processes and make sure the density/hardness is sufficient for
each part and batch within a specified tolerance.
Using this feature will require calibration on a “known” thickness that will remain
consistent at a specific location on a group of parts. The test will always be performed at
the same location for all parts in the group. The velocity will be determined, and either
accepted or rejected depending on the specified tolerances.
The procedure for enabling this feature is outlined below:
1. Press the key to access the menu items/features.
2. Use the and keys to scroll through the items/features until
the VX feature is being displayed.
3. Press the key to edit the velocity gauge setting. The edit icon will be
illuminated and flashing.
4. Use the and keys to toggle velocity on/off.
NOTE:
Pressing the key prior to pressing the key will abort to the
measurement screen without saving changes.
5. When the desired VX setting is displayed, press the key to set the status
and return to the measurement screen.
7.2 Calibration to a known thickness
In order to calibrate the TI-007DLX a ‘known thickness’ on the material or part will
be used. The same location will be used for all the other parts in the group/batch to
determine the velocity.