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The gauge performs the automatic zero and is then ready to be calibrated for a given material
type.
7.2.2 To conduct a manual probe zero (on block)
1. Remove all couplant from the face of the transducer and
check that the wearface of the transducer is clean and
free of any debris.
2. Use the control button to select
menu items.
The zero submenu items begin scrolling.
3. Apply a drop of couplant on the transducer and place the
transducer in steady contact with the zero disk (located
on the bottom end cap), and obtain a steady reading.
Note: Do not remove the transducer from the zero disk.
The display should show a thickness value, and nearly all
the bars of the stability indicator should be illuminated.
Note: The value that is displayed will change depending
on the current velocity setting in your gauge. Disregard
the value displayed; it is not important. What is important
is accurately performing these steps to ensure reliability
of the zero calculation.
4. Use the control button to select
menu items.
The gauge performs the manual zero.
5. Remove the transducer from the zero disk.
The gauge is now ready to be calibrated for a given material type.
7.3 TRANSDUCER - ZEROING FOR COATING MEASUREMENTS
In order to account for very slight electronic differences in transducers of the same type, frequency,
and diameter, your gauge has a "zero coating" feature. This enables your gauge to obtain very
accurate readings on coatings, eliminating potential errors incurred from slight differences in the
manufacturing processes.
The coating zero should be performed on the zero disk or an uncoated section of the material being
tested or something similar.
Note: For this procedure, a coating transducer must be fitted to the gauge.
ZERO
from the top level
MANUAL
from the sub-
Zero Disk
12
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