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CHAPTER SEVEN
VELOCITY GAUGE
7.1 Velocity Gauge (VX)
The
PZX-7
includes a function to convert the unit into a dedicated velocity gauge.
With this feature enabled, the
PZX-7
will display all measurements in terms of
velocity, inches per microsecond (
IN /
s
) 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:
Velocity Gauge Option
1) Press the
key to access the menu items/features.
2) Use the
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
keys to toggle velocity on/off.
Note:
Pressing the
key prior to pressing the
key will abort to the
measurement screen without saving changes.
Содержание PZX-7
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