Olympus 39DL Plus Ultrasonic Thickness Gauge

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 gauge delivers results you can trust in a seamless workflow.

• Connected: Data transfer options include 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 a full line of dual and single element transducers
• Reliable: Obtain accurate, reproducible measurements with exceptional signal quality, stable waveforms, and optimized algorithms

*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
Get the scanning speed of a flaw detector with the ease of use and affordability of a thickness gauge. For inspection codes that require a 60 Hz display update rate for scanning, the 39DL PLUS thickness gauge offers an affordable alternative. With an industry-leading* 60 Hz update rate for handheld thickness gauges, the 39DL PLUS instrument makes it easier to find thin spots when scanning for minimal thickness areas on pipes and other assets affected by corrosion.

*As of June 2024

One Gauge for Multiple Applications
The 39DL PLUS gauge offers powerful measurement features and a suite of application-specific software options, making it an all-in-one solution 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
• Standard resolution: 0.01 mm or 0.001 in. for all transducers
• High Resolution software option of 0.001 mm or 0.0001 in. with single element transducers from 2.25 MHz to 30 MHz
• Corrosion thickness gauging with dual element transducers
• THRU-COAT™ technology and echo-to-echo measurements on 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
• 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