ADvAnCeD ULtrAsonIC CorrosIon GAGe
The Panametrics-NDT™ 37DL PLUS 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. The
37DL PLUS includes many innovative
features that simplify true metal thickness
measurements even when the exposed
surface is coated or painted. A new ThruCoat technology measures and displays
the thickness of the metal part and its
coating using a ‘single backwall echo’.
A new Oxide/Scale option measures and
displays the thickness of the steel and
the oxide/scale build-up on the inside
of boiler tubes to help predict tube life.
Accuracy of high temperature thickness
measurements can be improved by using
the new Temperature Compensation
feature that adjusts the material velocity
for changes in material temperature.
A new Average/Min mode saves the
average or minimum of several successive
thickness measurements.
Improvements
New 37DL PLUS electronics bring
improvements to many standard
measurement features. The new A-scan
display is brighter with better contrast and
visibility. Every thickness reading in a
stored B-scan can now be reviewed on
the 37DL PLUS and in the Interface
Program. The user can select to view
(Min/Max, Alarm, or A-scan flags)
flags with Grid points. The file-based
alphanumeric datalogger can use longer
file names (32 character max) and ID
numbers (20 character max). Grid files
can be expanded by adding rows or
columns or by changing the incrementing
direction.
37DL PLUS
Corrosion Thickness Gage
FeAtUres
• New Thru-Coat™ technology measures
and displays the thickness of the metal
part and its coating using a ‘single
backwall echo’.
• New Temperature Compensation feature
adjusts the material velocity for changes
in material temperature.
• New optional Oxide/Scale feature
measures and displays the thickness of
the steel and the oxide/scale build-up.
• New Average/Min mode saves the
average or minimum of several
successive thickness measurements.
• New A-scan display is brighter with
better contrast and visibility.
• New: uses a vast array of dual element
and single element contact, delay line,
and immersion transducers.
• EMAT transducers for no-couplant steel
thickness measurements through heavily
scaled surfaces.
• The file-based alphanumeric datalogger
can use longer file names (32 character
max) and ID numbers (20 character
max).
• Improved: every thickness reading in a
stored B-scan can now be reviewed in
the WIN37DL PLUS Interface Program
and on the gage.
• Improved: select to view (Min/Max,
Alarm, or A-scan flags) flags for Grid
points.
• Grid files can be expanded by adding
rows or columns or by changing the
incrementing direction.
920-009A
new trAnsDUCers
The 37DL PLUS can be used with a vast array of dual element and
single element transducers. Its full line of D790 series dual element
transducers feature Automatic Probe Recognition to provide maximum
gage performance for each transducer. The 37DL PLUS also has the ability
to use the E110-SB EMAT transducer for no-couplant steel thickness
measurements through oxide-scaled surfaces. The M2017 and M2091
transducers are ideally suited for measuring internal oxide/scale build-up
on boiler tubes. The 37DL PLUS is also compatible with the PanametricsNDT complete line of Microscan single element direct contact, delay line,
and immersion transducers ranging in frequency from 2 to 30 MHz. As
a result, the gage can be used for non-corrosion applications involving
materials such as plastic, fiberglass, composites, rubber, castings, rubber
and glass. Application Auto-Recall automatically recalls 16 default and 10
custom Microscan transducer setups from the gage’s memory.
trAnsDUCers wIth AUtomAtIC probe reCoGnItIon AnD sInGLe eLement trAnsDUCers
PROBE MHZ CABLE CONN TIP DIA RANGE (steel)* TEMP RANGE** WAND HOLDER (w/wand)
D790 Potted Straight .434” 0.040”-20” -5° – 932°F F152 F152A
D790-SM 5.0 LCMD-316-5B
D790-RL LCLD-316-5G
D790-SL LCLD-316-5H Straight
D791 5.0 Potted Rt. Angle .434” 0.040”-20” -5° – 932°F F153
(11.0 mm) (1-500 mm) (-20° – 500°C) – –
D791-RM 5.0 LCMD-316-5C Rt. Angle .434” 0.040”-20” -5° – 752°F – –
(11.0 mm) (1-500 mm) (-20° – 400°C) – –
D792 10 Potted Straight .283” 0.020”-1” 32° – 122°F F150 F150A
D793 Potted Rt. Angle (7.2 mm) (0.5-25 mm) (0° – 50°C) F151
D794 5.0 Potted Straight .283” 0.030”-2” 32° – 122°F F150 F150A
D795 Potted Rt. Angle (7.2 mm) (0.75-50 mm) (0° – 50°C) F151 –
D797 2.0 Potted Rt. Angle .900” 0.150”-25.00” -5° – 752°F – –
D797-SM LCMD-316-5D Straight (22.9 mm) (3.8-635 mm) (-20° – 400°C) – –
D7226 7.5 Potted Rt. Angle .350” 0.028”-4” -5° – 300°F – –
D798-LF (8.9 mm) (0.71-100 mm) (-20° – 150°C) – –
D798 7.5 Potted Rt. Angle .283” 0.028”-4” -5° – 300°F – –
D798-SM LCMD-316-5J Straight (7.2 mm) (0.71-100 mm) (-20° – 150°C) – –
D799 5.0 Potted Rt. Angle .434” 0.040”-20” -5° – 300°F – –
(11.0 mm) (1-500 mm) (-20° – 150°C) – –
MTD705 5.0 LCLPD-78-5 Rt. Angle .200” 0.040”-0.75” 32° – 122°F – –
(5.1 mm) (1.0-19 mm) (0° – 50°C) – –
V260-SM LCM-74-4 Straight 0.080” 0.020” –0.400” 32° – 122°F Sonopen
V260-RM LCM-74-4 Rt. Angle (2.0 mm) (0.5-10 mm) (0° – 50°C)
V260-45 LCM-74-x 45° Angle
D7906-SM
††
5.0 LCMD-316-5L Straight .434” 0.040”-2.0” 32° – 122°F F152 F152A
(11.0 mm) (1-50 mm) (0° – 50°C)
D7908
††
7.5 Potted Rt. Angle .283” 0.028”-1.5” – –
(7.2 mm) (0.71-37 mm)
M2017 20 LCM-74-4 Rt. Angle 0.25” Steel 0.020”-0.500” 32° – 122°F – 2127
(6.35 mm) (0.5-12.0 mm) (0° – 50° C)
Oxide 0.010”-0.050”
(0.25-1.25 mm)
M2091 20 LCM-74-4 Rt. Angle 0.25” Steel 0.020”-0.500” 32° – 122°F – 2127
(6.35 mm) (0.5-12.0 mm) (0° – 50° C)
Oxide 0.006”-0.050”
(0.15-1.25 mm)
E110-SB LCB-74-4 and Straight 1.25” 0.080”-5.00” 32° – 176°F – –
1/2XA/E110 (28.5 mm) (2.0-125 mm) (0° – 80°C)
* Dependent on material, transducer type, surface condition, and temperature † Stainless steel cable available; consult us for part numbers
** Maximum temperature is with intermittent contact only †† Transducers used for Thru-Coat technology
†
Straight (11.0 mm) (1-500 mm) (-20° – 500°C) F152 F152A
†
Rt. Angle – –
®
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”) and
the material thickness (0.284”) 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
the user to enter the calibration block temperature and also manually or automatically
input the current (high) temperature at the measurement points. The 37DL PLUS will
display the temperature corrected thickness that can then be saved to the internal
datalogger.
The thickness reading of 0.376” is compensated
for the change in material sound velocity due to
the temperature difference between the calibrated
temperature and the material temperature (932°F).
Db GrID vIew
The improved Grid View feature allows the user to select either a Min/Max, Alarm, or
A-scan flag to be viewed along with each grid point. This allows the user to quickly scan
through a file and locate Min/Max, Alarm, or A-scan locations.
Flags clearly indicate (H) High Alarm and (L) Low
Alarm thickness measurements.
optIonAL oxIDe/sCALe meAsUrement
This new option uses advanced algorithms to measure the thickness of oxide/scale
build-up on the inside of boiler tubes. The gage simultaneously displays the metal
thickness of the boiler tube and the thickness of the oxide layer. Knowing the thickness
of the oxide/scale helps predict tube life. We recommend the use of the M2017 or
M2091 transducer for this application.
The 37DL PLUS displays the material
thickness (0.164”) and scale thickness (0.011”)
simultaneously.
37DL PLUS SPECIFICATIONS*
Dual Element Measurement Mode: Time
interval from a precision delay after
the excitation pulse to the first echo.
Thru-Coat Measurement:
Measurement
of true metal and coating thickness
using a single backwall echo (with
D7906-SM and D7908 transducers).
Thru-Paint Echo-to-Echo:
Time
interval between two successive backwall echoes for elimination of paint or
coating .
Single Element Measurement Mode:
Mode 1:
Time interval between
excitation pulse to first backwall echo.
Mode 2:
Time interval between delay
line echo to first backwall echo with
delay or immersion transducers.
Mode 3:
Time interval between
successive backwall echoes following
the first interface echo after the
excitation pulse with delay line or
immersion transducers.
Optional Oxide/Scale Measurement:
Measure metal thickness and internal
oxide/scale build-up of pipes. Oxide/
scale thickness range:
M2017: 0.010 - 0.050” (0.25 - 1.25 mm)
M2091: 0.006 - 0.050” (0.15 - 1.25 mm)
Thickness Range:
0.003 - 25.000 inches (0.080 - 635.00mm),
depending on material, transducer
surface condition, temperature, and
SETUP selected
Material Velocity Range:
0.020 - 0.551 inch/μS
(0.508 - 13.998 mm/μS)
Resolution, selectable:
LOW: 0.01” 0.1 mm
STANDARD: 0.001” 0.01 mm
Battery:
6V rechargeable NiCad battery pack, or
field-replaceable alkaline AA batteries
Battery Life:
25 hours in normal measurement
mode with backlight off
Fast-Charger:
Two-hour Fast-Charger with universal
voltage
Transducer Frequency Range:
2-30 MHz (-3 dB)
Operating Temperature:
-10 to +50°C (+14° to 122°F)
Keypad:
Sealed color-coded keypad with tactile
and audible feedback
Case:
Impact-resistant and Water-resistant,
gasketed Lexan® case with sealed connectors. Environmental IP-65 compliant
Liquid Crystal Display:
With backlight. Contrast keypad
adjustable. Display area 4.0 x 3.39 inch
(102 x 86 mm)
Hazardous Area Operations:
As defined by MIL-STD-810E, method
511.3, procedure 1
Rectification:
Full wave, RF, half wave positive, or half
wave negative
Display Range and Delay Control
Metric/English Units
Size:
9.375 x 5.45 x 1.5” (238 x 138 x 38 mm)
Weight:
2.1 lbs. (0.95 Kg)
InternAL DAtALoGGer
Datalogger and RS-232:
The 37DL PLUS identifies, stores,
recalls, clears, and transmits thickness
readings, waveform images, and gage
setup information via the RS-232 serial
port. Baud Rate, Word Length, Stop
Bits, and Parity are adjustable from the
keypad.
Maximum # of Stored Values:
Standard: 60,000 thickness readings
or 4,500 waveforms with thickness
readings
File Names, ID# and Comments:
32 character file name plus 20 character alphanumeric location code with 4
comments per location
File Structures:
7 standard or custom application
-specific file structures
Reports:
On-gage reporting of summary with
statistics, Min/Max with locations,
File Comparison, and Alarm Report.
On-screen comparison of current and
previous readings.
stAnDArD InCLUsIons
Model 37DL PLUS Digital Ultrasonic
Thickness Gage with Waveform
Verification, AC or Battery Operation,
50-60 Hz
• D790-SM Transducer, 5.0 MHz, 0.434”
(11mm) tip, temp. range -5° to 932°F
• Charger/AC adapter (100, 115, 230
VAC)
• Internal Datalogger
• WIN37DL PLUS Interface Program
• Test Block and Couplant
• RS-232 Cable
• Protective Pouch with Neck Strap
• Instruction Manual
• Two-Year Limited Warranty
• Measurement features:
Thru-Coat,
Echo-to-Echo Thru-Paint, EMAT
Compatability, Min/Max Mode,
Two Alarm Modes, Differential
Mode, B-scan, Application Auto
Recall, Temperature Compensation,
Average/Min Mode
optIonAL ACCessorIes
37DLP/EW Third-Year warranty
WIN37DL PLUS/CCG (Color-coded
Grid software)
36CA/EC-115 External Fast Charger,
115 VAC
37DLP/SU/OXIDE Software option for
the measurement of boiler tubes and
internal oxide
1/2XA/E110 Filter adapter for
E110-SB EMAT transducer
Printed 9/2005
© 2005 Olympus NDT, All Rights Reserved.
*All specications are subject to change without notice.
Panametrics, Panametrics-NDT and the Panametrics-NDT logo are trademarks of Panametrics Inc.
Other company or product names mentioned in this document may be trademarks or registered
trademarks of their respective companies. *All specications are subject to change without notice.
Olympus NDT, Inc.
48 Woerd Ave, Waltham, MA U.S.A.
TEL 781-419-3900 • 800 225-8330 in North America
e-mail: info@panametrics-ndt.com
www.pAnAmetrICs-nDt.Com
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