38DL PLUS
Overview
Cloud-Connected with the 38-Link
38DL PLUS® Ultrasonic Thickness Gauge:
Advanced Features, Simple Operation, Rugged, Reliable
The 38DL PLUS is an innovative instrument that signals a new era in ultrasonic thickness gauging. Ideally suited for almost every ultrasonic thickness application, this handheld thickness gauge is fully compatible with a full line of dual and single element transducers. The versatile 38DL PLUS can be used in applications ranging from wall thinning measurements of internally corroded pipes with dual element probes to very precise thickness measurements of thin or multilayer materials with single element transducers.
The 38DL PLUS comes standard with many powerful but easy-to-use measurement features and a host of application-specific software options. Its sealed case is designed to meet IP67 requirements to withstand the rigors of very wet or dusty environments. The color transflective VGA display provides superior readability from bright sunlight to complete darkness. It features a simple, ergonomic keypad that can be operated with the left or right hand for easy access to all functions.
Key Features
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What Makes This Thickness Gauge Different From Others?
The 38DL PLUS is designed to meet the challenges of demanding applications and built to withstand tough conditions in the field and on the production floor. Whether you work in very wet or dusty conditions, cold or hot climates, or bright or dark areas, the 38DL PLUS can handle any inspection job. Need an instrument tough enough to tolerate shocks, drops, and rough handling? The 38DL PLUS with its protective rubber boot and designed for IP67 rating is your answer.
Built for Tough Environments
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Designed for Easy Operation
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38-Link™ Wireless Communication Adaptor
The optional 38-Link wireless adaptor enables any existing 38DL PLUS thickness gauge to send and receive data using Bluetooth® or wireless LAN*. The 38-Link adaptor provides three powerful wireless communication capabilities:
For more details, see the 38-Link page, or download the 38-Link brochure. *Wireless LAN and Bluetooth dongle availability depends on your region. Contact your local Olympus sales representative for more information. |  |
Data Logger and PC Interface
The 38DL PLUS has a full-featured internal bidirectional alphanumeric data logger that is designed to easily collect and transfer thickness readings and waveform data.
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GageView™
|  Onboard DB Grid View with three programmable colors |
Standard Package
38DL PLUS digital ultrasonic thickness gauge, AC or battery, 50 Hz to 60 Hz
| Measurement features: THRU-COAT, Thru-Paint Echo-to-Echo, EMAT compatibility, Min./Max. mode, two alarm modes, differential mode, B-scan, Application Auto-Recall, temperature compensation, Average/Min. mode |
Specifications
| Measurements > Dual element transducer measurement mode | Time interval from a precision delay after the excitation pulse to the first echo |
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| Measurements > THRU-COAT® measurement | Measurement of true metal and coating thicknesses with a single back-wall echo (with D7906-SM and D7908 transducers) |
| Measurements > Thru-Paint Echo-to-Echo | Time interval between two successive back-wall echoes to eliminate paint or coating thickness |
| Measurements > Single element transducer measurement modes | Mode 1: Time interval between the excitation pulse and the first back-wall echo
Mode 2: Time interval between the delay line echo and the first back-wall echo (with delay or immersion transducers) Mode 3: Time interval between successive back-wall echoes following the first interface echo after the excitation pulse (with delay line or immersion transducers) Oxide: optional Multilayer mode: optional |
| Measurements > Thickness range | 0.080 mm to 635.00 mm (0.003 in. to 25.000 in.) depending on material, transducer surface conditions, temperature, and selected configuration |
| Measurements > Material velocity range | 0.508 mm/μs to 13.998 mm/μs (0.020 in./μs to 0.551 in./μs) |
| Measurements > Resolution (selectable) | Low: 0.1 mm (0.01 in.)
Standard: 0.01 mm (0.001 in.) High Resolution (optional): 0.001 mm (0.0001 in.) |
| Measurements > Transducer frequency range | Standard: 2.0 MHz to 30 MHz (-3 dB)
High Penetration (optional): 0.50 MHz to 30 MHz (-3 dB) |
| General > Operating temperature range | -10 °C to 50 °C (14 °F to 122 °F) |
| General > Keypad | Sealed, color-coded keypad with tactile and audible feedback |
| General > Case | Impact-resistant and water-resistant, gasketed case with sealed connectors. Designed for IP67. |
| General > Dimensions (W x H x D) | Overall: 125 mm x 211 mm x 46 mm (4.92 in. x 8.31 in. x 1.82 in.) |
| General > Weight | 0.814 kg (1.80 lb) |
| General > Power supply | AC/DC adaptor, 24 V; lithium-ion battery 23.760 Wh; or 4 AA auxiliary batteries |
| General > Battery life, lithium-ion | Operating time: minimum 12.6 h, 14 h typical, 14.7 h maximum Fast charge: 2 h to 3 h |
| General > Standards | Designed for EN15317 |
| Display > Color transflective VGA display | Liquid crystal display, display area 56.16 mm x 74.88 mm (2.2 in. x 2.95 in.) |
| Display > Rectification | Full wave, RF, half-wave positive, or half-wave negative |
| Inputs/Outputs > USB | 1.0 client |
| Inputs/Outputs > RS-232 | Yes |
| Inputs/Outputs > Memory card | Maximum capacity: 2 GB External microSD memory card |
| Inputs/Outputs > Video output | VGA output standard |
| Internal Data logger > Data logger | The 38DL PLUS identifies, stores, recalls, clears, and transmits thickness readings, waveform images, and gauge configuration information through the standard RS-232 serial port or USB port. |
| Internal Data logger > Capacity | 475,000 thickness measurements or 20,000 waveforms with thickness measurements |
| Internal Data logger > File names, IDs, and comments | 32-character file names and 20-character alphanumeric location codes with four comments per location |
| Internal Data logger > File structures | Nine standard or custom application-specific file structures |
| Internal Data logger > Reports | On-gauge reporting of summary with statistics, Min./Max. with locations, Min. review, file comparison, and alarm report |
Software Options
38DLP-OXIDE (U8147014): Code-activated Internal Oxide measurement software
38DLP-HR (U8147015): Code-activated High Resolution measurement software
38DLP-MM (U8147016): Code-activated Multilayer measurement software
38DLP-HP (U8147017): Code-activated High Penetration (low frequency) measurement software
38DLP-EBSCAN (U8147018): Encoded B-scan software
Optional Accessories
38DLP/EW (U8778348): Three-year warranty
1/2XA/E110 (U8767104): Filter adaptor for E110-SB EMAT transducer
38-9F6 (U8840167): RS-232 cable
38-C-USB-IP67 (U8800998): USB cable for IP67 sealed operation
38DLP/RFS (U8780288):Foot switch, factory installed
HPV/C (U8780124): Digital caliper for thickness input for velocity measurements
38DLP-V-CC (U8840172): Cable for digital caliper
EPLTC-C-VGA-6 (U8840035):VGA output cable
MICROSD-ADP-2GB (U8779307): 2 GB External microSD memory card
BSCAN-ENC (U8779522): Encoded B-scan buggy
38DL--ENC-CBC-10 (U8840168): 10 ft encoder cable
Software Features
Thickness Measurements on Internally Corroded Metals
One of the major applications of the 38DL PLUS is measuring the remaining thickness of pipes, tubes, tanks, pressure vessels, hulls, and other structures affected by corrosion or erosion. Dual element transducers are most commonly used for these applications.
- Automatic Probe Recognition for standard D79X series dual element transducers
- Ten custom dual element transducer setups
- Optimized default gain during calibration for dual element transducer
- V-Path Builder for custom V-path compensation
- Calibration Doubling warning when echo doubling may occur during calibration
- THRU-COAT® and Echo-to-Echo measurements on painted and coated surfaces
- High temperature measurements; up to 500 °C (932 °F)
- Boiler tube and Internal Oxide measurements (optional) with M2017 or M2091 single element transducers
- EMAT transducer (E110-SB) for no-couplant measurements of boiler tubes with external oxide/scale buildup
 | Optional Encoded B-ScanThis powerful optional feature allows the 38DL PLUS to be connected to a linear encoded scanner to generate encoded B-scans. The 38DL PLUS will capture and store the distance traveled information along with corresponding thickness readings. The waveform at the minimum thickness is also captured. The user can select the distance between measurements and select between bidirectional and unidirectional modes. Up to 10,000 thickness readings can be stored in a single B-scan. |
| Thru-Coat® TechnologyA single back-wall echo is used to measure true metal thickness. You can display the metal and coating thicknesses, each adjusted for their correct material sound velocities. There is no need to remove paint and coatings from surfaces. THRU-COAT measurements use the D7906-SM, D7906-RM, and D7908 dual element transducers. |
| Temperature CompensationVariations in material temperature affect sound velocity and accuracy of thickness measurements. The temperature compensation feature allows you to manually enter the calibration block's temperature and the current (high) temperature at the measurement points. The 38DL PLUS automatically displays the temperature-corrected thickness. |
| Optional Oxide/Scale Measurement38DL PLUS uses advanced algorithms to measure the thickness of oxide/scale buildups inside boiler tubes. The gauge 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 using M2017 or M2091 transducers in this application. |
 | V-Path BuilderThis new and patented feature allows you to build a custom V-Path compensation curve for almost any dual element transducer. These curves can be saved and recalled along with custom setups for most dual element transducers. You simply calibrate and enter the known thickness with a minimum of 3 and up to 10 calibration points, and the instrument will create the V-path. |
Automatic Probe Recognition
All standard dual element transducers feature Automatic Probe Recognition, which automatically recalls a default V-path correction for each specific transducer.
Thickness Measurements on Plastics, Metals, Composites, Glass, Rubber, Ceramics
When using single element transducers, you can make accurate thickness measurements on metals, plastics, composites, glass, ceramics, and other materials. These transducers are available in a wide range of frequencies, diameters, and connector styles. The High Resolution software option allows you to make very precise measurements at a resolution of 0.0001 in. or 0.001 mm.
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| High Penetration Software OptionThis option allows you to use low frequency single element transducers (as low as 0.5 MHz) to measure thick or sound attenuating materials such as rubber, fiberglass, castings, and composites. Multilayer Software OptionThis software option calculates and simultaneously displays thickness measurements of up to four individual layers. It also displays total thickness of selected layers. Typical applications include thickness of barrier layers in plastic fuel tanks, bottle preforms, and soft contact lenses. |
38-Link™ Wireless Adaptor
Simplified Data Transfer and Management
Ultrasonic thickness gauge inspections can be time consuming—thousands of individual measurements recorded in the field and painstakingly compiled into data management software. And if these readings are recorded by hand, inaccuracies can lead to longer equipment shutdowns and added time and costs for owner-operators. The 38-Link adaptor enables any 38DL PLUS® thickness gage to send and receive data using a Bluetooth® or wireless LAN connection*, simplifying data management and enabling a more efficient workflow. Upgrading is simple—the 38-Link adaptor easily attaches to the gauge’s rubber boot. *Wireless LAN and Bluetooth dongle availability depends on your region. Contact your local Olympus sales representative for more information. 3 Connection OptionsPowerful Fleet Management Tools |  |
Wirelessly connect to the Olympus Scientific Cloud™ (OSC) and subscribe to the Inspection Project Manager (IPM) app to benefit from:
- Improved data integrity
- Fast, reliable data transfers from the inspection site
- Faster reporting and decision making
- Improved visibility to project status
- Remote management and monitoring of projects, jobs, and tasks
- Improved human and device resource utilization
Send Thickness Data to Your Mobile Phone or Tablet
Use the Olympus Link mobile app and Bluetooth® to send thickness data to your phone or tablet. From your mobile device, share thickness data over text message or email, or save the data as a text file for easy import to a spreadsheet. You can also send data to compatible third-party mobile applications.
Easily Populate Your Thickness Data into Data Entry Programs
Use the optional Link-Wedge software and Bluetooth to send data from your gage to an active Windows® software application. The software can populate data into almost any Windows-based data entry program. The Link-Wedge is only compatible with Windows 10.
Transducers
Transducers for Precision Thickness Gauges | Transducers for Corrosion Thickness Gauges |
Olympus offers a complete selection of transducers, cables, couplants, calibration test blocks, and accessories to meet a wide variety of ultrasonic precision thickness gaging applications.
