DeFelsko PosiTector 100 v.4.0 - Manual (Page 39)

100 Series Page 39
Service
Before returning the Gage for service, attempt to clear the problem by…
•
installing new, “C” alkaline batteries (pg.37), and
•
performing a RESET (pg.30), and if still necessary
•
performing a Gage INITIALIZATION (pg.31)
to restore factory settings and to return the Gage
to an “out-of-the-box” condition.
For service, ensure the following:
•
return Gage, probe and all related material,
including samples if appropriate
•
include company name, return address, contact
and fax number
•
describe the problem as completely as possible
Specifications
Due to continuous process improvement, specifications are subject to change
without notice.
ASTM
The Model 100 conforms to ASTM D6132 – Standard Test Method for
Nondestructive Measurement of Dry Film Thickness of Applied Organic
Coatings Over Concrete Using an Ultrasonic Gage. The Scope of this Test
Method states, “This test method covers the use of ultrasonic film thickness
gages to measure accurately and nondestructively the dry film thickness of
organic coatings applied over a substrate of dissimilar material”. The Test
Method is available from ASTM in West Conshohocken, Pennsylvania, USA at
telephone number (610) 832-9500.
Temperature
Variations in temperature change the velocity of sound in materials, including
the probe. All optimization should be performed on-site with check standards at
the same temperature as the test piece in order to minimize errors due to
temperature variations.
The operating range for the Model 100 is
+
32 to
+
100F (0 to
+
40C). The Gage
compensates automatically for temperature within its operating range. “B”
probes also compensate automatically. “C” and “D” probes are not temperature
compensated and should be allowed a few minutes to reach ambient temperature
before measuring. These two probes should be ZEROED when temperature
changes are suspected (pg.29).