37DL PLUS Ultrasonic Thickness Gage
The
new 37DL PLUS gage is an advanced nondestructive ultrasonic thickness gage
that combines powerful measurement features with sophisticated data
acquisition and output capabilities for applications involving pipes,
tanks and other metal structures subject to internal corrosion or erosion.
Thru-Coat technology
measures and displays the thickness of the metal part and its coating
using a single backwall echo. The temperature compensation feature adjusts
the material velocity for changes in material temperature. The optional
Oxide/Scale feature measures and displays the thickness of the steel and
the oxide or scale buildup. Average/Min mode saves the average or minimum
of several successive thickness measurements.
The A-Scan display is
brighter with better contrast and visibility. Uses a large variety of dual
element and single element contact, delay line and immersion transducers.
Uses
EMAT transducers for no-couplant steel thickness measurements on
oxide scaled surfaces. The file-based alphanumeric datalogger can use
longer file names (32 characters) and identification numbers (20
characters). Every thickness reading on a stored B-Scan can now be
reviewed on the WIN37DL PLUS interface program and on the gage. Select to
view (Min/Max, Alarm or A-Scan) flags for grid points. Grid files can be
expanded by adding rows or columns or by changing the incrementing
direction.
Download pdf Brochure
(243 kb)
Transducers
The 37DL PLUS gage can be
used with a large variety of dual element and single element transducers.
Our full line of dual element transducers features automatic probe
recognition to provide maximum gage performance for each transducer. The
37DL PLUS can also use
EMAT transducers
for couplant-free measurements on oxide scale applications. The 37DL PLUS
is also compatible with our complete line of Microscan single element
direct contact, delay line and immersion transducers ranging in frequency
from 2 to 30 MHz, and recalls 16 default and 10 custom Microscan
transducer setups from memory automatically. As a result, the gage can be
used for non-corrosion applications involving materials such as plastic,
fiberglass, composites, rubber, castings and glass.
|
Thru-Coat Technology
This innovative feature
uses a single backwall echo to measure true metal thickness. The 37DL PLUS
can display both metal and coating thickness, each adjusted for their
correct material sound velocity. The gage can be set to display only the
true metal thickness. There is no need to remove the paint or coating from
the surface. Thru-Coat measurements use the new D7906-SM and D7908 dual
element transducers.
|
The
37DL PLUS automatically calculates and displays both the coating thickness
(0.019 in) and the material thickness (0.284 in) with a single backwall
echo
|
|
Temperature Compensation
Variations in material
temperature cause changes in sound velocity that may affect the accuracy
of the thickness measurement. The Temperature Compensation feature allows
you to enter the calibrated (normal) temperature, and also manually or
automatically enter the current (high) temperature of the measurement
points. The 37DL PLUS displays the temperature-corrected thickness, which
can be saved to the internal datalogger.
|
The
thickness reading of 0.376 in is compensated for the change in material
sound velocity due to the temperature difference between the calibrated
temperature and the material temperature (932 °F)
|
|
Optional Oxide/Scale Measurement
This new option uses
advanced algorithms to measure the thickness of oxide and scale buildup on
the inside of boiler tubes. Knowing the thickness of the oxide and scale
helps predict tube life. The gage simultaneously displays the metal
thickness of the boiler tube and the thickness of the oxide layer.
|
The
37DL PLUS displays the total thickness (0.191 in) and scale thickness
(0.014 in) simultaneously
|
|
DB Grid View
With the improved Grid View
feature, you can view a Min/Max, Alarm or A-Scan flag along with each grid
point, so you can scan through a file and quickly locate Min/Max, Alarm or
A-Scan locations.
|
Flags
clearly indicate (H)High Alarm and (L)Low Alarm thickness measurements
|
