Olympus 39DL PLUS Ultrasonic Thickness Gauge

The 39DL PLUS gauge works as a precision or corrosion thickness gauge for demanding applications. Integrated Wi-Fi, Bluetooth, USB, RS-232, and a removable microSD card. Scan for minimal thickness areas at a 2 times faster display update rate. Tackle multiple thickness applications with full line of dual and single element transducers.

Faster Thickness Results

Streamline your ultrasonic thickness inspection process with one fast, connected, and reliable handheld gauge. The 39DL PLUS gauge works as a precision or corrosion thickness gauge for demanding applications.

With world-class ultrasonic capability, fast scanning speeds up to a 60 Hz update rate, and fully integrated wireless connectivity, our flagship handheld thickness gauge delivers results you can trust in a seamless workflow.

- Connected: Integrated Wi-Fi, Bluetooth, USB, RS-232, and a removable microSD card
- Fast: Scan for minimal thickness areas at a 2 times faster display update rate
- Versatile: Tackle multiple thickness applications with our full line of dual and single element transducers

Wi-Fi and Bluetooth are pending certification in some regions. Contact your local Evident representative for details on their availability. Up to 60 Hz versus 30 Hz on the predecessor model and comparable handheld thickness gauges.

Affordable Part Scanning

With breakthrough scanning speeds, the 39DL PLUS instrument offers an industry-leading 60 Hz update rate for handheld thickness gauges.

Works as an affordable alternative for inspection codes that require a 60 Hz display update rate for scanning; get the scanning speed of a flaw detector with the ease of use of a thickness gaugeFind thin spots more easily when scanning for minimal thickness areas on pipes and other assets affected by corrosion.

One Thickness Gauge for Multiple Applications

Take advantage of powerful measurement features and a suite of application-specific software options for your current and future requirements.

- Wide thickness range: 0.08 mm (0.003 in.) to 635 mm (25 in.) depending on material and transducer selection
- Corrosion thickness gauging with dual element transducers
- High Resolution software option of 0.001 mm or 0.0001 in. with single element transducers from 2.25 MHz to 30 MHz
- THRU-COAT technology and echo-to-echo measurements to measure through painted and coated surfaces
- Internal Oxide/Scale software option for boiler tube and internal oxide measurements
- Multilayer software option to measure up to four layers simultaneously
- High Penetration software option for attenuating materials such as fiberglass, rubber, and thick castings
- Standard resolution: 0.01 mm or 0.001 in. for all transducers
- Thickness, velocity, and time-of-flight measurements
- Differential mode and reduction rate mode to track thickness variation and its percentage from a preset value
- Time-based B-scan mode: 10,000 reviewable readings per scan
- High Dynamic Gain technology with digital filters optimizes the starting gain setting based on calibration
- V-Path Builder for custom V-path compensation in corrosion applications
- Designed for EN15317 compliance
- Compatible with all probes and accessories supported on the predecessor model

Benefits

Trusted Ultrasonic Technology

The 39DL PLUS gauge builds on proven performance. Confidently perform your work with industry standard technology for ultrasonic thickness testing.

- Accurate, reproducible measurements from exceptional signal quality, stable waveforms, and optimized algorithms
- World-class ultrasonics developed by professionals with 35+ years of nondestructive testing (NDT) experience

Built to Last in Any Environment

Your thickness gauge needs to keep working despite shocks, drops, and rough handling, and the 39DL PLUS instrument is up to the challenge.

- Rugged: Designed for IP67 for protection against dust and water
- Explosive atmosphere, shock, and vibration tested using MIL-STD-810H
- Wide operating temperature range: –10 °C to 50 °C (14 °F to 122 °F)
- Protective rubber boot with gauge stand

Easy to Carry, Easy to Use

Designed with the operator in mind, the 39DL PLUS handheld gauge is comfortable to carry and use in the field or on the production floor.

- Ergonomic keypad: operate with the left or right hand for quick access to all functions
- Lightweight handheld design: Weighs only 0.83 kg (1.83 lb)
- Built-in data logger: Easily collect thickness readings and waveform data
- Efficient inspections: Default and custom setups for dual and single element transducers
- Secure access control: Lock instrument features with password-protected functions
- Excellent clarity: Color transflective VGA display with indoor and outdoor color settings
- See work on a larger screen: VGA output to connect the gauge to a computer or monitor

Specifications:

Measurements

- Dual element transducer 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 thicknesses with a single back-wall echo (with D7906-SM and D7908 transducers)
- Thru-Paint Echo-to-Echo: Time interval between two successive back-wall echoes to eliminate paint or coating thickness
- 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
- Thickness range: 0.08 mm to 635 mm (0.003 in. to 25 in.) depending on material, transducer surface conditions, temperature, and selected configuration
- Material velocity range: 0.508 mm/μs to 13.998 mm/μs (0.02 in./μs to 0.551 in./μs)
- 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.)
- 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)
- Keypad: Sealed, color-coded keypad with tactile and audible feedback
- Case: Impact-resistant and water-resistant, gasketed case with sealed connectors. Designed for IP67.
- Dimensions (W x H x D): Overall: 125 mm × 211 mm × 46 mm (4.92 in. × 8.31 in. × 1.82 in.)
- Weight: 0.83 kg (1.83 lb)
- Power supply: AC/DC adapter, 24 V; lithium-ion battery 23.760 Wh; or 4 AA auxiliary batteries
- Battery life, lithium-ion:
  * Operating time: typically 8 hours
  * Fast charge: 2 to 3 hours
- Standards: Designed for EN15317
- Explosive Atmosphere: Testing using MIL-STD-810H, Section 511.7, Procedure I

Display

- Color transflective VGA display: Liquid crystal display, display area 56.16 mm x 74.88 mm (2.2 in. x 2.95 in.)
- Rectification: Full wave, RF, half-wave positive, or half-wave negative

Inputs/Outputs

- USB: USB 3.0
- RS-232: Yes
- Memory card: Maximum capacity: 32 GB external microSD memory card
- Video output: VGA output standard

Wireless Communication

- Wi-Fi: Integrated
- Bluetooth: Integrated

Internal Data logger

- Data logger: The 39DL 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
- Capacity: 792,832 thickness measurements or 20,000 waveforms with thickness measurements
- File names, IDs, and comments: 32-character file names and 20-character alphanumeric location codes with four comments per location
- File structures: Nine standard or custom application-specific file structures
- Reports: On-gauge reporting of summary with statistics, Min./Max. with locations, Min. review, file comparison, and alarm report

Package Includes:

- 39DL PLUS digital ultrasonic thickness gauge, AC or battery, 50 Hz to 60 Hz. 
- Charger/AC adapter (100 VAC, 115 VAC, 230 VAC)
- Internal data logger
- GageView interface program
- Test block and couplant
- USB cable
- Rubber protective boot with gauge stand and neck strap
- User's manual
- Two-year limited warranty