Olympus 45mg




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.

Measurements Dual element transducer measurement mode Time interval from a precision delay after the excitation pulse to the first echo
Echo-to-Echo (optional) Time interval between two successive back-wall echoes to eliminate paint or coating thickness
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)
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)
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)
Material velocity range 0.508 mm/μs to18.699 mm/μs (0.020 in./μs to 0.7362 in./μs)
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.)
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)
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: 91.1 mm x 162 mm x 41.1 mm (3.59 in. x 6.38 in. x 1.62 in)
Weight 430.9 g (0.95 lb)
Power Supply 3 AA batteries/USB power supply
Battery life operating time 3 AA alkaline: 20 to 21 hours
3 AA NiMH: 22 to 23 hours
AA Lithium: 35 to 36 hours
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.)
Rectification Full wave, RF, half-wave positive, or half-wave negative (Waveform option)
Inputs/Outputs USB 2.0 client
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.
Capacity 475,000 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 structure Six standard or custom application-specific file structures
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


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