PZX-7
Ultrasonic Multi-Mode Thickness Gauge
3
2.3 CAL Key
The
CAL
key is used to enter and exit the
PZX-7
's calibration mode. This mode is
used to adjust the sound velocity value that the
PZX-7
will use when calculating
thickness. The tool will either calculate the sound-velocity from a sample of the
material being measured, or allow a known velocity value to be entered directly. This
provides increased linearity between transducers. Refer to page 16 for an
explanation on the various calibration options.
2.4 GAIN Key
The
PZX-7
has an adjustable gain feature for additional versatility to control the
overall output of the gauge, to compensate for various materials and applications.
There are five gain settings
(VLOW, LOW, MED, HIGH, VHI)
when pulse-echo or
thin PLAS mode is selected, and three gain settings
(LOW, MED, HIGH)
for all other
modes where automatic gain control is used. Refer to page 29 for details regarding
the gain feature.
2.5 SCAN Key
The
PZX-7
offers a high speed scan feature. This feature allows for scanning larger
areas on a given test material, while still offering reasonable representation of
thickness over the area scanned. Refer to page 30 for an explanation on the scan
feature.
2.6 +/- Increment/Decrement Key’s
The
+/-
Keys are used to increment/decrement values, navigate menus, and select
menu options.
2.7 MODE Key
The
MODE
key toggles the measurement modes. If a delay line transducer (dLY) is
selected from the PROB menu option, echo-echo (E-E) and interface-echo (I-E)
modes will be toggled. If a contact transducer (Con) is selected, pulse-echo (P-E)
and echo-echo (E-E) modes will be toggled. Finally, if the plastic transducer (PLAS)
option is selected, the thickness options thin (thin) and thick (thK) will be toggled. The
measurement modes and transducer styles offer the flexibility to address specific
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