Olympus 38DL PLUS Basic Operation Manual
38DL PLUS
Ultrasonic Thickness Gage
Basic Operation Manual
DMTA-10009-01EN [U8778346] — Rev. D
November 2016
This instruction manual contains essential information on how to use this Olympus product safely and effectively.
Before using this product, thoroughly review this instruction manual. Use the product as instructed.
Keep this instruction manual in a safe, accessible location.
Olympus Scientific Solutions Americas, 48 Woerd Avenue, Waltham, MA 02453, USA
Copyright © 2010, 2011, 2016 by Olympus. All rights reserved. No part of this publication
may be reproduced, translated, or distributed without the express written permission of
Olympus.
This document was prepared with particular attention to usage to ensure the accuracy of the
information contained therein, and corresponds to the version of the product manufactured
prior to the date appearing on the title page. There could, however, be some differences
between the manual and the product if the product was modified thereafter.
The information contained in this document is subject to change without notice.
Part number: DMTA-10009-01EN [U8778346]
Rev. D
November 2016
Printed in the United States of America
All brands are trademarks or registered trademarks of their respective owners and third
party entities.
DMTA-10009-01EN [U8778346], Rev. D, November 2016
Table of Contents
List of Abbreviations ...................................................................................... vii
Labels and Symbols ........................................................................................... 1
Important Information — Please Read Before Use ..................................... 5
Intended Use .......................................................................................................................... 5
Instruction Manual ................................................................................................................ 5
Instrument Compatibility ..................................................................................................... 6
Repair and Modification ....................................................................................................... 7
Safety Symbols ....................................................................................................................... 7
Safety Signal Words ............................................................................................................... 7
Note Signal Words ................................................................................................................. 8
Safety ....................................................................................................................................... 9
Warnings ................................................................................................................................. 9
Battery Precautions .............................................................................................................. 10
Equipment Disposal ............................................................................................................ 11
CE (European Community) ............................................................................................... 11
WEEE Directive .................................................................................................................... 12
China RoHS .......................................................................................................................... 12
EMC Directive Compliance ................................................................................................ 13
FCC (USA) Compliance ...................................................................................................... 13
ICES-001 (Canada) Compliance ........................................................................................ 14
Regulatory Information ...................................................................................................... 14
Warranty Information ......................................................................................................... 14
Technical Support ................................................................................................................ 15
Introduction ...................................................................................................... 17
1. Instrument Description ............................................................................. 19
Table of Contents iii
DMTA-10009-01EN [U8778346], Rev. D, November 2016
1.1 Product Description .................................................................................................. 19
1.2 Environmental Ratings ............................................................................................. 22
1.3 Instrument Hardware Components ....................................................................... 23
1.4 Connectors ................................................................................................................. 24
1.5 Keypad Functions ..................................................................................................... 26
2. Powering the 38DL PLUS ......................................................................... 31
2.1 Power Indicator ......................................................................................................... 31
2.2 Using the AC Power ................................................................................................. 32
2.3 Using Battery Power ................................................................................................. 33
2.3.1 Battery Operating Time ................................................................................. 34
2.3.2 Charging the Battery ...................................................................................... 34
2.3.3 Replacing the Battery ..................................................................................... 36
3. Software User Interface Elements ........................................................... 39
3.1 Measurement Screen ................................................................................................ 39
3.2 Menus and Submenus .............................................................................................. 41
3.3 Parameter Screens ..................................................................................................... 42
3.4 Selecting the Text Edit Mode ................................................................................... 44
3.4.1 Editing Text Parameters Using the Virtual Keyboard .............................. 44
3.4.2 Editing Text Parameters Using the Traditional Method ........................... 46
4. Initial Setup ................................................................................................ 49
4.1 Setting the User Interface Language and Other System Options ...................... 49
4.2 Selecting the Measurement Units ........................................................................... 50
4.3 Setting the Clock ....................................................................................................... 50
4.4 Changing Display Settings ...................................................................................... 51
4.4.1 Color Schemes ................................................................................................ 52
4.4.2 Display Brightness ......................................................................................... 53
4.4.3 Waveform Rectification ................................................................................. 54
4.4.4 Waveform Trace .............................................................................................. 55
4.5 Range of the Waveform Display ............................................................................. 56
4.5.1 Selecting the Range Value ............................................................................. 57
4.5.2 Adjusting the Delay Value ............................................................................ 58
4.5.3 Activating the Zoom Function ..................................................................... 58
4.6 Adjusting the Measurement Update Rate ............................................................. 60
4.7 Changing the Thickness Resolution ....................................................................... 61
5. Basic Operation .......................................................................................... 63
5.1 Setting Up the Transducer ....................................................................................... 63
5.2 Calibration .................................................................................................................. 66
Table of Contents
iv
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5.2.1 Calibrating the Instrument ........................................................................... 67
5.2.2 Test Blocks ....................................................................................................... 70
5.2.3 Transducer Zero Compensation .................................................................. 70
5.2.4 Material Sound Velocity and the Zero Calibrations ................................. 71
5.2.5 Entering a Known Material Sound Velocity .............................................. 72
5.2.6 Locked Calibrations ....................................................................................... 73
5.2.7 Factors Affecting the Performance and the Accuracy .............................. 73
5.3 Measuring Thicknesses ............................................................................................ 75
5.4 Saving Data ................................................................................................................ 76
5.5 Measurements with THRU-COAT D7906 and D7908 Transducers .................. 78
5.5.1 Enabling the THRU-COAT Function .......................................................... 78
5.5.2 Performing a THRU-COAT Calibration ..................................................... 79
5.6 Echo Detection Modes with Dual Element Transducers ..................................... 80
5.6.1 Blanking Adjustments in Manual Echo-to-Echo Detection Mode .......... 83
5.6.2 Dual Element Transducer Selection in Echo-to-Echo Modes .................. 84
5.6.3 Echo-to-Echo Mode Datalogger Flags ......................................................... 85
5.7 Using the VGA Output ............................................................................................ 86
Appendix: Technical Specifications ............................................................. 87
List of Figures ................................................................................................... 95
List of Tables ..................................................................................................... 97
Index ................................................................................................................... 99
Table of Contents
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Table of Contents
vi
DMTA-10009-01EN [U8778346], Rev. D, November 2016
List of Abbreviations
AC alternative current
AEtoE automatic echo-to-echo
AVG average
DB database
DC direct current
EFUP environment-friendly use period
EMAT electromagnetic acoustic transducer
HI high
ID identification
Li-ion lithium-ion
LOS loss-of-signal
MB main bang
MEtoE manual echo-to-echo
MIL military
NiMH nickel metal hydride
P/N part number
PDF portable document format
PRF pulse repetition frequency
SP special
STD standard
TFT thin film transistor (liquid crystal display technology)
USB universal serial bus
VAC voltage alternative current
List of Abbreviations vii
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List of Abbreviations
viii
DMTA-10009-01EN [U8778346], Rev. D, November 2016
CAUTION
Top end view
Warning symbol
Direct current symbol
USB and RS-232
symbols
Labels and Symbols
Safety-related labels and symbols are attached to the instrument at the locations
shown in Figure i-1 on page 1 and Figure i-2 on page 2. If any or all of the labels or
symbols are missing or illegible, please contact Olympus.
Do not touch the inner conductor of the T/R 1 and T/R 2 connectors to avoid risks of
an electric shock. Up to 200 V can be present on the inner conductor. The warning
symbol between the Transmit/Receive (T/R) connector markings is shown in
Figure i-1 on page 1.
Figure i‑1 The warning symbol between the T/R connectors
Labels and Symbols
1
DMTA-10009-01EN [U8778346], Rev. D, November 2016
Serial number label
Side view
Back view
Patent label
Instruction label
(see Table 1 on page 3)
Serial number label
Labels and Symbols
2
Figure i‑2 Labels and symbols are attached to the instrument
Serial number
yynnnnnmm
label
DMTA-10009-01EN [U8778346], Rev. D, November 2016
Table 1 Label contents
Where:
yy: last two digits of the production year
nnnnn: 5-digit nonduplicated incrementing number
representing the n
th
production unit of this product
mm: production month
Instruction label
Labels and Symbols
3
DMTA-10009-01EN [U8778346], Rev. D, November 2016
Table 1 Label contents (continued)
Symbol Description
The CE marking is a declaration that this product conforms to
all the applicable directives of the European Community. See
the Declaration of Conformity for details. Contact your Olympus
representative for more information.
The regulatory compliance mark (RCM) label indicates that
the product complies with all applicable standards, and has
been registered with the Australian Communications and
Media Authority (ACMA) for placement on the Australian
market.
This symbol indicates the location of the membrane vent.
The WEEE symbol indicates that the product must not be
disposed of as unsorted municipal waste, but should be
collected separately.
Labels and Symbols
4
The China RoHS mark indicates the product’s EnvironmentFriendly Use Period (EFUP). The EFUP is defined as the
number of years for which listed controlled substances will not
leak or chemically deteriorate while in the product. The EFUP
for the 38DL PLUS has been determined to be 15 years. Note:
The Environment-Friendly Use Period (EFUP) is not meant to
be interpreted as the period assuring functionality and
product performance.
This device complies with Part 15 of the FCC Rules. Operation
is subject to the following two conditions: (1) this device may
not cause harmful interference, and (2) this device must accept
any interference received, including interference that may
cause undesired operation.
The direct current symbol.
DMTA-10009-01EN [U8778346], Rev. D, November 2016
WARNING
Important Information — Please Read Before Use
Intended Use
The 38DL PLUS instrument has been designed to measure thicknesses of industrial
and commercial materials.
Do not use the 38DL PLUS for any purpose other than its intended use. It must never
be used to inspect or examine human or animal body parts.
Instruction Manual
This instruction manual contains essential information on how to use this Olympus
product safely and effectively. Before using this product, thoroughly review this
instruction manual. Use the product as instructed.
Keep this instruction manual in a safe, accessible location.
Important Information — Please Read Before Use
5
DMTA-10009-01EN [U8778346], Rev. D, November 2016
IMPORTANT
CAUTION
Some of the details of components and/or software images in this manual may differ
from your instrument’s components or software display. However, the principles
remain the same.
The other 38DL PLUS documents are:
38DL PLUS Ultrasonic Thickness Gage — Getting Started (P/N: DMTA-10010-01EN
[U8778357])
A short leaflet containing essential information on how to quickly start operating
the 38DL PLUS instrument.
38DL PLUS Ultrasonic Thickness Gage — User’s Manual (P/N: DMTA-10004-01EN)
A document in PDF format containing the detailed description of the instrument
as well as the setup and operation procedures for all instrument features. The
PDF file can be found on the GageView CD (P/N: Gageview [U8147006]).
GageView Interface Program — User’s Manual (P/N: 910-259-EN [U8778347])
The 38DL PLUS also works with the GageView interface program. Refer to this
document for detailed information on GageView. The document is available in
PDF format on the GageView CD and as online help in GageView.
Instrument Compatibility
Refer to the User’s Manual for information on accessories that are compatible with the
38DL PLUS instrument.
Always use equipment and accessories that meet Olympus specifications. Using
incompatible equipment could cause equipment malfunction and/or damage, or
human injury.
Important Information — Please Read Before Use
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DMTA-10009-01EN [U8778346], Rev. D, November 2016
CAUTION
Repair and Modification
Apart from the battery, the 38DL PLUS does not contain any user-serviceable parts.
Opening the instrument might void the warranty.
In order to prevent human injury and/or equipment damage, do not disassemble,
modify, or attempt to repair the instrument.
Safety Symbols
The following safety symbols might appear on the instrument and in the instruction
manual:
General warning symbol
This symbol is used to alert the user to potential hazards. All safety messages that
follow this symbol shall be obeyed to avoid possible harm or material damage.
Shock hazard caution symbol
This symbol is used to alert the user to potential electric shock hazards. All safety
messages that follow this symbol shall be obeyed to avoid possible harm.
Safety Signal Words
The following safety symbols might appear in the documentation of the instrument:
Important Information — Please Read Before Use
7
DMTA-10009-01EN [U8778346], Rev. D, November 2016
DANGER
WARNING
CAUTION
IMPORTANT
NOTE
The DANGER signal word indicates an imminently hazardous situation. It calls
attention to a procedure, practice, or the like that if not correctly performed or
adhered to will result in death or serious personal injury. Do not proceed beyond a
DANGER signal word until the indicated conditions are fully understood and met.
The WARNING signal word indicates a potentially hazardous situation. It calls
attention to a procedure, practice, or the like that if not correctly performed or
adhered to could result in death or serious personal injury. Do not proceed beyond a
WARNING signal word until the indicated conditions are fully understood and met.
The CAUTION signal word indicates a potentially hazardous situation. It calls
attention to a procedure, practice, or the like that if not correctly performed or
adhered to may result in minor or moderate personal injury, material damage,
particularly to the product, destruction of part or all of the product, or loss of data. Do
not proceed beyond a CAUTION signal word until the indicated conditions are fully
understood and met.
Note Signal Words
The following symbols could appear in the documentation of the instrument:
The IMPORTANT signal word calls attention to a note that provides important
information, or information essential to the completion of a task.
The NOTE signal word calls attention to an operating procedure, practice, or the like,
which requires special attention. A note also denotes related parenthetical
information that is useful, but not imperative.
Important Information — Please Read Before Use
8
DMTA-10009-01EN [U8778346], Rev. D, November 2016
TIP
WARNING
The TIP signal word calls attention to a type of note that helps you apply the
techniques and procedures described in the manual to your specific needs, or
provides hints on how to effectively use the capabilities of the product.
Safety
Before turning on the instrument, verify that the correct safety precautions have been
taken (see the following warnings). In addition, note the external markings on the
instrument, which are described under “Safety Symbols.”
Warnings
General Warnings
• Carefully read the instructions contained in this instruction manual prior to
turning on the instrument.
• Keep this instruction manual in a safe place for further reference.
• Follow the installation and operation procedures.
• It is imperative to respect the safety warnings on the instrument and in this
instruction manual.
• If the equipment is used in a manner not specified by the manufacturer, the
protection provided by the equipment could be impaired.
• Do not install substitute parts or perform any unauthorized modification to the
instrument.
• Service instructions, when applicable, are for trained service personnel. To avoid
the risk of electric shock, do not perform any work on the instrument unless
qualified to do so. For any problem or question regarding this instrument, contact
Olympus or an authorized Olympus representative.
• Do not touch the connectors directly by hand. Otherwise, a malfunction or electric
shock may result.
Important Information — Please Read Before Use
9
DMTA-10009-01EN [U8778346], Rev. D, November 2016
WARNING
CAUTION
CAUTION
• Do not allow metallic or foreign objects to enter the device through connectors or
any other openings. Otherwise, a malfunction or electric shock may result.
Electrical Warnings
• Before operating this instrument using mains electricity, you must connect the
protective earth terminal of the instrument to the protective conductor (mains) of
the power cord. The mains plug shall only be inserted into a socket outlet
provided with a protective earth contact. Never negate the protective action by
using an extension cord (power cable) without a protective conductor
(grounding).
• If there is any possibility that the ground protection could be impaired, you must
make the instrument inoperative and secure it against any unintended operation.
• The instrument must only be connected to a power source corresponding to the
type indicated on the rating label.
If an unauthorized power supply cord is used to power the instrument or charge the
batteries, Olympus cannot guarantee the electrical safety of the equipment.
Battery Precautions
• Before disposing of a battery, check your local laws, rules, and regulations, and
follow them accordingly.
• Transportation of lithium-ion batteries is regulated by the United Nations under
the United Nations Recommendations on the Transport of Dangerous Goods. It is
expected that governments, intergovernmental organizations, and other
international organizations shall conform to the principles laid down in these
regulations, thus contributing to worldwide harmonization in this field. These
international organizations include the International Civil Aviation organization
Important Information — Please Read Before Use
10
DMTA-10009-01EN [U8778346], Rev. D, November 2016
(ICAO), the International Air Transport Association (IATA), the International
Maritime Organization (IMO), the US Department of Transportation (USDOT),
Transport Canada (TC), and others. Please contact the transporter and confirm
current regulations before transportation of lithium-ion batteries.
• Do not open, crush, or perforate batteries; doing so could cause injury.
• Do not incinerate batteries. Keep batteries away from fire and other sources of
extreme heat. Exposing batteries to extreme heat (over 80 °C) could result in an
explosion or personal injury.
• Do not drop, hit, or otherwise abuse a battery, as doing so could expose the cell
contents, which are corrosive and explosive.
• Do not short-circuit the battery terminals. A short circuit could cause injury and
severe damage to a battery making it unusable.
• Do not expose a battery to moisture or rain; doing so could cause an electric
shock.
• Only use the 38DL PLUS unit or an external charger approved by Olympus to
charge the batteries.
• Only use batteries supplied by Olympus.
• Do not store batteries that have less than 40 % remaining charge. Recharge
batteries to between 40 % and 80 % capacity before storing them.
• During storage, keep the battery charge between 40 % and 80 %.
• Do not leave batteries in the 38DL PLUS unit during instrument storage.
Equipment Disposal
Before disposing of the 38DL PLUS, check your local laws, rules, and regulations, and
follow them accordingly.
CE (European Community)
This device complies with the requirements of both directive
2014/30/EU concerning electromagnetic compatibility and directive
2014/35/EC concerning low voltage. The CE marking indicates
compliance with the above directives.
Important Information — Please Read Before Use 11
DMTA-10009-01EN [U8778346], Rev. D, November 2016
WEEE Directive
In accordance with European Directive 2012/19/EU on Waste Electrical
and Electronic Equipment (WEEE), this symbol indicates that the
product must not be disposed of as unsorted municipal waste, but
should be collected separately. Refer to your local Olympus distributor
for return and/or collection systems available in your country.
China RoHS
China RoHS is the term used by industry generally to describe legislation
implemented by the Ministry of Information Industry (MII) in the People’s Republic
of China for the control of pollution by electronic information products (EIP).
The China RoHS mark indicates the product’s EnvironmentFriendly Use Period (EFUP). The EFUP is defined as the number of
years for which listed controlled substances will not leak or
chemically deteriorate while in the product. The EFUP for the
38DL PLUS has been determined to be 15 years.
Note: The Environment-Friendly Use Period (EFUP) is not meant
to be interpreted as the period assuring functionality and product
performance.
“ 中国 RoHS” 是一个工业术语，一般用于描述中华人民共和国信息工业部 （MII）针
对控制电子信息产品 （EIP）的污染所实行的法令。
中国 RoHS 标识是根据 “ 电器电子产品有害物质限制使用管理办
法 ” 以及 “ 电子电气产品有害物质限制使用标识要求 ” 的规定，适
用于在中国销售的电气电子产品上的电气电子产品有害物质限制使
用标识。
电气电子产品
有害物质
限制使用标识
Important Information — Please Read Before Use
12
注意：电气电子产品有害物质限制使用标识内的数字为在正常的使
用条件下有害物质不会泄漏的年限，不是保证产品功能性的年限。
DMTA-10009-01EN [U8778346], Rev. D, November 2016
产品中有害物质的名称及含量
有害物质
部件名称 铅及其
化合物
(Pb) (Hg) (Cd)
机构部件
主体 光学部件
电气部件
附件
本表格依据 SJ/T 11364 的规定编制。
○：表示该有害物质在该部件所有均质材料中的含量均在 GB/T26572 规定的限量要求以下。
×：表示该有害物质至少在该部件的某一均质材料中的含量超出 GB/T26572 规定的限量要求。
× ○○○○○
× ○○○○○
× ○○○○○
× ○○○○○
汞及其
化合物
镉及其
化合物
六价铬及
其化合物
(Cr( Ⅵ ))
多溴联苯 多溴
(PBB) (PBDE)
EMC Directive Compliance
This equipment generates and uses radio-frequency energy and, if not installed and
used properly (that is, in strict accordance with the manufacturer’s instructions), may
cause interference. The 38DL PLUS has been tested and found to comply with the
limits for an industrial device in accordance with the specifications of the EMC
directive.
二苯醚
FCC (USA) Compliance
This device complies with Part 15 of the FCC Rules. Operation is subject to the
following two conditions:
1. This device may not cause harmful interference.
2. This device must accept any interference received, including interference that
may cause undesired operation.
Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
This equipment has been tested and found to comply with the limits for a Class A
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference when the equipment is
Important Information — Please Read Before Use 13
DMTA-10009-01EN [U8778346], Rev. D, November 2016
operated in a commercial environment. This equipment generates, uses, and can
radiate radio frequency energy, and if not installed and used in accordance with the
instruction manual, might cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful
interference, in which case you will be required to correct the interference at your own
expense.
ICES-001 (Canada) Compliance
This Class A digital apparatus complies with Canadian ICES-001.
Cet appareil numérique de la classe A est conforme à la norme NMB-001 du Canada.
Regulatory Information
The 38DL PLUS may display a regulatory screen that lists the specific regulation with
which it complies.
To view the REGULATORY screen
1. In the measurement screen, press [2nd F], [SETUP MENU] (SP MENU).
2. In the SP MENU, select REGULATORY to display the REGULATORY screen.
3. Use the up and down arrow keys to scroll through the different REGULATORY
screens.
4. Press [MEAS] to return to the measurement screen.
Warranty Information
Olympus guarantees your Olympus product to be free from defects in materials and
workmanship for a specific period, and in accordance with conditions specified in the
Olympus Scientific Solutions Americas Inc. Terms and Conditions available at
http://www.olympus-ims.com/en/terms/.
The Olympus warranty only covers equipment that has been used in a proper
manner, as described in this instruction manual, and that has not been subjected to
excessive abuse, attempted unauthorized repair, or modification.
Important Information — Please Read Before Use
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DMTA-10009-01EN [U8778346], Rev. D, November 2016
Inspect materials thoroughly on receipt for evidence of external or internal damage
that might have occurred during shipment. Immediately notify the carrier making the
delivery of any damage, because the carrier is normally liable for damage during
shipment. Retain packing materials, waybills, and other shipping documentation
needed in order to file a damage claim. After notifying the carrier, contact Olympus
for assistance with the damage claim and equipment replacement, if necessary.
This instruction manual explains the proper operation of your Olympus product. The
information contained herein is intended solely as a teaching aid, and shall not be
used in any particular application without independent testing and/or verification by
the operator or the supervisor. Such independent verification of procedures becomes
increasingly important as the criticality of the application increases. For this reason,
Olympus makes no warranty, expressed or implied, that the techniques, examples, or
procedures described herein are consistent with industry standards, nor that they
meet the requirements of any particular application.
Olympus reserves the right to modify any product without incurring the
responsibility for modifying previously manufactured products.
Technical Support
Olympus is firmly committed to providing the highest level of customer service and
product support. If you experience any difficulties when using our product, or if it
fails to operate as described in the documentation, first consult the user’s manual, and
then, if you are still in need of assistance, contact our After-Sales Service. To locate the
nearest service center, visit the Service Centers page at: http://www.olympusims.com.
Important Information — Please Read Before Use 15
DMTA-10009-01EN [U8778346], Rev. D, November 2016
Important Information — Please Read Before Use
16
DMTA-10009-01EN [U8778346], Rev. D, November 2016
IMPORTANT
Introduction
This manual provides basic operating instructions for the 38DL PLUS ultrasonic
thickness gage. The information in this manual is organized to explain the technology,
safety details, hardware, and software. Practical measurement examples help the user
become familiar with the instrument’s capabilities.
For advanced instructions on instrument configuration, use, troubleshooting, and
maintenance, refer to the 38DL PLUS User’s Manual. The list of other 38DL PLUS
documents is provided in “Instruction Manual” on page 5.
Figure i‑3 The 38DL PLUS instrument
Introduction 17
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18
Introduction
DMTA-10009-01EN [U8778346], Rev. D, November 2016
IMPORTANT
1. Instrument Description
This chapter describes the main features and the hardware components of the
38DL PLUS instrument.
The 38DL PLUS Ultrasonic Thickness Gage — User’s Manual (P/N: DMTA-10004-01EN)
contains the information found in the present document as well as other sections
describing the more advanced features of the instrument such as using special
transducers, managing custom transducer setups, using software options, using the
datalogger, and communicating with external devices.
You can find the PDF file of the 38DL PLUS Ultrasonic Thickness Gage — User’s Manual
(P/N: DMTA-10004-01EN) on the GageView CD (P/N: Gageview [U8147006]) that is
included with the 38DL PLUS kit.
1.1 Product Description
The 38DL PLUS by Olympus is a hand-held ultrasonic thickness gage designed for a
wide variety of thickness measurement applications. With the 38DL PLUS, you only
need access to one side of a part to measure, in a nondestructive manner, the thickness
of corroded, pitted, scaled, granular, and other difficult materials (see Figure 1-1 on
page 20).
Instrument Description 19
DMTA-10009-01EN [U8778346], Rev. D, November 2016
Figure 1‑1 Measuring thicknesses with the 38DL PLUS
The 38DL PLUS simultaneously displays a thickness readout and an A-scan view for
waveform verification. The microprocessor of the 38DL PLUS continuously adjusts
the receiver setup so that every measurement is optimized for reliability, range,
sensitivity, and accuracy. An advanced internal datalogger can store up to
475000 thickness measurements and 20000 waveforms.
The 38DL PLUS operates with a full line of single element and dual element
transducers to measure material thicknesses between 0.08 mm and 635 mm (0.003 in.
and 25 in.). The temperature range of measured materials can be between −20 °C and
500 °C (−4 °F and 932 °F) depending on the material characteristics, the transducer,
and the measurement mode. You can also use single element or dual element
transducers for echo-to-echo measurements.
You can connect the 38DL PLUS to a printer and to a computer using the bidirectional
serial USB/RS-232 communication ports.
Advanced Measurement Features
• THRU-COAT measurement
• Temperature-compensated measurement
•Min/Average mode
Chapter 1
20
DMTA-10009-01EN [U8778346], Rev. D, November 2016
•EMAT transducer capability
• Measurement-related status flags and alarms
• Full VGA color transflective LED back-lite display
• Automatic probe recognition for the standard D79X and MTD705 series
transducers
• Dynamic default gain optimization
• V-path calibration to build custom V-path correction tables for any dual element
transducer
• Warning against calibration doubling
• Calibration for unknown material sound velocity and/or transducer zero
• Echo-to-echo measurements
• Fast scan mode with 30 readings per second
• Manual gain adjustment in 1-dB steps
• Hold or blank thickness display during loss-of-signal (LOS) conditions
• Hold minimum, maximum, or both minimum and maximum functions
• Differential thickness display relative to the set point in absolute or percentage
ratio
• Selection of password-protected lockout functions
• Selectable resolution: low of 0.1 mm (0.01 in.), standard of 0.01 mm (0.001 in.), or
high (optional) of 0.001 mm (0.0001 in.) [option not available for all transducers]
A-Scan and B-Scan Display Options
• Real-time A-scan waveform display for verification of critical measurements
• Manual freeze mode with post processing
• Manual zoom and range control of waveform display
• Auto hold on LOS and auto zoom (measured echo centering)
• Extended blank
• Blank after first received echo in echo-to-echo mode
• Receiver gain readout
• Ability to capture and display waveform associated with minimum thickness
during scanned measurements
• Display stored and downloaded waveforms
Instrument Description 21
DMTA-10009-01EN [U8778346], Rev. D, November 2016
Internal Datalogger Functions
• Internal data storage and possibility to export data to a removable microSD
memory card
• Capacity to store 475000 fully-documented thickness readings or
20000 waveforms with thickness readings
• Database enhancements include 32-character file naming and 20-character ID
naming
• Automatic ID number increments following a preset sequence, or manual ID
numbering using the keypad
• Save reading/waveform to an ID number
• Simultaneously show ID number, stored comments, and stored reference
thickness while displaying active thickness and waveform
• Nine file formats available
• Erase selected data or all stored data
• Save or send an held or frozen reading to the thickness display
• Transmit selected data or all stored data
• Keypad-programmable communication parameters
• Standard USB and RS-232 directional communication
1.2 Environmental Ratings
The 38DL PLUS is a rugged and durable instrument that you may use in harsh
environments. The 38DL PLUS was designed to meet the requirement of the IP67
standard (Ingress Protection).
Chapter 1
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