Thickness Gages

27MG Ultrasonic Thickness Gages


The Olympus 27MG is an affordable ultrasonic thickness gage designed to make accurate, measurements from one side on internally corroded or eroded metal pipes, tanks, and other equipment. It weighs only 12 oz. (340 g)
and is ergonomically designed for easy, one-hand operation. Despite its compact size, the 27MG has many innovative measurement features utilizing the same technologies that are available on our more advanced thickness gages.
The durable, rugged 27MG is battery-operated and features a large, backlit LCD with easy-to-read numerals, and
an intuitive color-coded keypad with direct access to many key features.

Standard features include Automatic Probe Recognition to ensure optimal transducer performance, Auto Zero compensation to enhance the accuracy of measurements on hot surfaces, Gain Adjust to improve measurements on sound-attenuating materials such as cast metals, Differential mode, Hi-Low Alarm settings, and a Min./Max. mode that captures the minimum or maximum thickness at 20 measurements per second. The 27MG is designed for inspectors and maintenance engineers that need to monitor the wall thickness in metal pipes, tanks, beams, and structural supports that are susceptible to corrosion on the inside surface. An ultrasonic thickness gage provides a quick, cost-effective solution by transmitting sound into the material from the outside, making it unnecessary to damage the part.

Key features

Automatic Probe Recognition, to enhance transducer performance;

Auto Zero compensation, to enhance the accuracy of measurements on hot surfaces;

Gain Adjust to improve measurements on sound-attenuating materials;

Differential mode;

D7910 dual element transducer;

High-Low Alarm settings; and

A Min./Max. mode that captures the minimum or maximum thickness at 20 measurements per second.

45MG Ultrasonic Thickness Gages: Simple Operation,
Rugged & Reliable


The 45MG is an advanced ultrasonic thickness gage packed with standard measurement features and software options. This unique instrument is compatible with the complete range of Olympus dual element and single element thickness gage transducers, making this innovative instrument an all-in-one solution for virtually every thickness gage application.

Key features

It is compatible with dual element transducers for

measuring thickness on internally corroded metals

Password instrument lock

Two Alarm modes

Time-based B-scan

Differential mode

Designed for IP67

Optional protective rubber boot with gage stand

Wide operating temperature range

USB communication port

Internal and removable MicroSD memory card storage

Colortransflective QVGA display with indoor and outdoor color settings is used for providing high readability

Simple keypad for right hand/left hand operation

Password protected instrument lock

Easy operator interface is used for accessing most of the functions

38DL PLUS Ultrasonic Thickness Gages: Advanced Features, Simple Operation,
Rugged & Reliable


The 38DL PLUS is an innovative instrument that signals a new era in ultrasonic thickness gaging. Ideally suited for almost every ultrasonic thickness application, this handheld thickness gage 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 colortransflective 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

Wide thickness range: 0.08 mm (0.003 in.) to 635 mm (25 in.) depending on material and transducer selection

Corrosion thickness gaging with dual element transducers

THRU-COAT® and Echo-to-Echo measurements on painted and coated surfaces

Internal Oxide/Scale software option

Standard resolution of 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 2.25 MHz to 30 MHz

Multilayer software option for measurements of up to four layers simultaneously

High Penetration software option for attenuating materials such as fiberglass, rubber and thick casting

Thickness, Velocity, and time-of-flight measurements

Differential mode and Reduction Rate mode

Time-based B-scan mode; 10,000 reviewable readings per scan

Olympus High Dynamic Gain technology with digital filters

V-Path Builder for custom V-path compensation

Designed for EN15317

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