Overview

45MG Ultrasonic Thickness Gauge:
Simple Operation, Rugged, and Reliable

The 45MG is an advanced ultrasonic thickness gauge 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 gauge transducers, making this innovative instrument an all-in-one solution for virtually every thickness gauge application.

Standard Features

In its basic configuration the 45MG is a simple and straightforward gauge that requires minimal operator training to tackle most common thickness gauging applications. With additional optional software options and transducers however, the 45MG can become significantly more advanced and take on applications well beyond that of a typical entry-level gauge. Furthermore, most options are available individually at the time of purchase or can be added in the future as your needs change.

Compatible with full line of Olympus dual element transducers for thickness measurements on internally corroded metals
Min./Max. mode
Two Alarm modes
Differential mode
Time-based B-scan
Reduction Rate
Gain Adjust (standard, high, and low)
Password instrument lock

45MG with optional protective rubber boot and stand

Optional Features

From a simple corrosion gauge to a multi-purpose precision thickness gauge with only a few key strokes. The 45MG offers five code-activated software options that makes it one of the most versatile thickness gauges in the industry.

Echo-to-Echo / THRU-COAT®:Using Echo-to-Echo, the true metal thickness is displayed and the thickness of the coating layer will be ignored. THRU-COAT measures metal and nonmetallic coating thicknesses, each adjusted for their correct sound velocities. There is no need to remove paint or coatings fromsurfaces.
Single Element:For very precise thickness measurements on many materials, including metals, plastics, composites, glass, and ceramics. Compatible with single element Microscan transducers ranging from 2.25 MHz to 30 MHz.
Single Element High Penetration:For thickness measurement on thick or highly attenuating materials such as fiberglass or cast metals. Compatible with single element Microscan transducers ranging from 0.5 MHz to 30 MHz. Included is the Single Element option.
Data Logger:The 45MG has a full-featured internal bidirectional alphanumeric data logger that is designed to easily store and transfer thickness readings and waveform data. Includes GageView™ interface program, a Windows-based application.
Live A-scan with Waveform Adjust:This optional Live A-scan mode allows users to view the ultrasound waveform (or A-scan) directly on the gauge's display, verify the thickness measurement, and make manual adjustments to gain and blanking settings to maximize measurement performance in challenging applications. This helpful option features Manual Gain Adjust, Extended Blanking, First Echo Blank, Range, and Delay.

Built for Tough Environments

Rugged, designed for IP67
Explosive Atmosphere: Safe operation as defined by Class I, Division 2, Group D, as found in the National Fire Protection Association Code (NFPA 70), Article 500, and tested using MIL-STD-810G, Method 511.4, Procedure I.
Shock tested using MIL-STD-810G, Method 516.5, Procedure I, 6 cycles each axis, 15 g, 11 msec Half sine.
Vibration tested using MIL-STD-810G, Method 514.5, Procedure I, Annex C, Fig. 6, general exposure: 1 hour each axis.
Wide operating temperature range
Optional protective rubber boot with gauge stand

Indoor display setting, optional A-scan mode

Designed for Easy Operation

Simple keypad for right hand/left hand operation
Easy operator interface with direct access to most functions
Internal and removable microSD memory card storage
USB communication port
Optional alphanumeric data logger with 475,000 thickness readings or 20,000 waveforms
Default/Custom single element transducer setups (optional)
Password protected instrument lock
Color transflective QVGA display with indoor and outdoor color settings for superior clarity

Outdoor display setting, optional A-scan mode

Specifications

Measurements > Dual element transducer measurement mode	Time interval from a precision delay after the excitation pulse to the first echo
Measurements > Echo-to-Echo (optional)	Time interval between two successive back-wall echoes to eliminate paint or coating thickness
Measurements > THRU-COAT® measurement (optional)	Measurement of true metal and coating thicknesses with a single back-wall echo (with D7906-SM, D7906-RM, and D7908 transducers)
Measurements > Single element transducer measurement modes (optional)	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)
Measurements > Thickness range	0.080 mm to 635 mm (0.003 in. to 25.0 in.) depending on material, transducer, surface conditions temperature, and selected configuration (Full range requires single element option)
Measurements > Material velocity range	0.508 mm/μs to18.699 mm/μs (0.020 in./μs to 0.7362 in./μs)
Measurements > Resolution (selectable)	Low: 0.1 mm (0.01 in.) Standard: 0.01 mm (0.001 in.) Single Element option: 0.001 mm (0.0001 in.)
Measurements > Transducer frequency range	Standard: 2.25 MHz to 30 MHz (-3 dB) High Penetration (Single Element option): 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: 91.1 mm x 162 mm x 41.1 mm (3.59 in. x 6.38 in. x 1.62 in)
General > Weight	430.9 g (0.95 lb)
General > Power Supply	3 AA batteries/USB power supply
General > Battery life operating time	3 AA alkaline: 20 to 21 hours 3 AA NiMH: 22 to 23 hours AA Lithium: 35 to 36 hours
General > Standards	Designed for EN15317
Display > Color transflective QVGA display	Liquid crystal display, display area 54.61 mm x 41.15 mm (2.15 in. x 1.62 in.)
Display > Rectification	Full wave, RF, half-wave positive, or half-wave negative (Waveform option)
Inputs/Outputs > USB	2.0 client
Inputs/Outputs > Memory card	Maximum capacity: 2 GB removable microSD memory card
Internal Data Logger (Optional) > Data logger	The 45MG identifies, stores, recalls, clears, and transmits thickness readings, waveform images, and gauge configuration information through USB or microSD.
Internal Data Logger (Optional) > Capacity	475,000 thickness measurements or 20,000 waveforms with thickness measurements
Internal Data Logger (Optional) > File names, IDs, and comments	32-character file names and 20-character alphanumeric location codes with four comments per location
Internal Data Logger (Optional) > File structure	Six standard or custom application-specific file structures
Internal Data Logger (Optional) > Reports	On-gauge reporting of summary with statistics, Min./Max.

Standard Package

45MG digital ultrasonic thickness gauge
AA alkaline batteries
2-step test block and couplant
USB cable
User's manual on CD
Measurement features: Min./Max. mode, two alarm modes, Differential, mode, B-scan, Reduction Rate, Programmable Lock

Software Options

45MG-SE (U8147022): Single Element option to use single element transducers with frequency range of 2.25 MHz to 30 MHz.
45MG-HP (U8147023): Single Element High Penetration option to use single element transducers with frequency range of 0.5 MHz to 30 MHz.
45MG-EETC (U8147021): Echo-to-Echo and THRU-COAT®
45MG-WF (U8147019): Waveform option
45MG-DL(U8147020): Internal data logger including GageView interface program

Optional Accessories

MICROSSD-ADP-2GB (U8779307): 2 GB External microSD memory card
45MG-RPC (U8779676): Rubber protective boot with stand

Software Options

The 45MG offers five code-activated software options that makes it one of the most versatile thickness gages in the industry.

Echo-to-Echo / THRU-COAT® Option

Echo-to-Echo

The gauge displays the true metal thickness and ignores the thickness of the coating layer, using multiple back-wall echoes:

Auto Echo-to-Echo
Manual Echo-to-Echo (with A-scan option only) that allows:
- Gain Adjust
- Extended Blanking
- Echo Blanking

THRU-COAT Technology

Uses a single back-wall echo 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.

Auto Echo-to-Echo mode with A-scan

THRU-COAT mode showing thickness of coating and steel (waveform not activated)

Manual Echo-to-Echo adjusting the First Echo blank

THRU-COAT mode with optional waveform

Single Element Software Option

The Single Element software option enables you to make very precise thickness measurements at a resolution of up to 0.0001 in. or 0.001 mm. Compatible with single element Microscan transducers ranging from 2.25 MHz to 30 MHz.

Most materials, from thin to thick
Plastic bottles, tubes, pipes, sheets as thin as 0.08 mm (0.003 in.)
Metal containers, steel coils, machined parts as thin as 0.10 mm (0.004 in.)
Cylinder bores, turbine blades
Glass bulbs, bottles
Thin fiberglass, rubber, ceramics, and composite materials
Curved areas or containers with small radii

Single Element High Penetration Software Option

This option allows you to use low frequency single element transducers (as low as 0.5 MHz) to measure thick or highly attenuating materials such as rubber, fiberglass, castings, and composites. Included is the Single Element option.

Most thick or sound-attenuating materials
Thick cast metal parts
Thick rubber tires, belts
Fiberglass boat hulls, storage tanks
Composite panels
Resolution of 0.01 mm (0.001 in.) for transducer frequencies of 0.5 MHz and 1.0 MHz

Optional Data Logger and PC Interface

The 45MG has a full-featured internal bidirectional alphanumeric data logger that is designed to easily store and transfer thickness readings and waveform data. The data logger option includes the GageView™ Interface program.

Data Logger Option

Internal memory of 475,000 thickness readings or 20,000 waveforms with thickness readings
32 Character File name
20 Character ID# (TML#)
6 file formats: Incremental, Sequential, Sequential with custom point, 2-D Grid, Boiler, and Manual (from PC) GageView
Internal and removeable microSD memory cards
File copy with the ability to copy files between internal/removable microSD memory cards
Standard USB communication
Two-way transfer of single element transducer setups
Onboard statistical report
Onboard DB Grid View with three programmable colors
GageView™ interface program communicates with the 45MG
- using the USB port
- or read and write to a microSD memory card
Direct export of internal files to microSD memory card in Excel compatible CSV (comma-separated values) and .txt format.

When viewed on your PC a color coded grid easily flags out-of-tolerance thickness conditions.

Measurement reports can easily be generated and printed containing measurements, ID, and other parameters.

Onboard DB Grid View with three programmable colors

GageViewInterface Program

Included with the Data Logger option
This Windows-based application collects, creates, prints, and manages data from the 45MG.
Creates datasets and surveys
Stored data editing
View dataset and survey files; including thickness readings, gauge setup values, and transducer setup values
Download and upload thickness surveys to and from the gauges
Export surveys to spreadsheets and other programs
Collecting snapshot screens
Printing reports such as Thickness, Setup Table, Statistics, and Color Grid
Upgrade the 45MG software
Download and upload single element transducer setup files

B-scan Screen
When viewed on your PC a color coded grid easily flags out-of-tolerance thickness conditions.

Live A-Scan With Waveform Adjust

This optional Live A-scan mode allows users to view the ultrasound waveform (or A-scan) directly on the gauge's display, verify the thickness measurement, and make manual adjustments to gain and blanking settings to maximize measurement performance in challenging applications. This helpful option features Manual Gain Adjust, Extended Blanking, First Echo Blank, Range, and Delay.

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 gauging applications.