Olympus 38DL PLUS Ultrasonic Thickness Gage


Model : 38DL Plus



Olympus 38DL PLUS Ultrasonic Thickness Gauge:

Advanced Features, Simple Operation, Rugged, Reliable

The Olympus 38DL PLUS is an innovative instrument that signals a new era in ultrasonic thickness gauging. Ideally suited for almost every ultrasonic thickness application, this handheld thickness gauge 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 Olympus 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 color transflective 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 38DL PLUS

  • Dual and single element transducer compatibility
  • 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



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 0.080 mm to 635.00 mm (0.003 in. to 25.000 in.) depending on material, transducer surface conditions, temperature, and selected configuration
MATERIAL VELOCITY RANGE 0.508 mm/μs to 13.998 mm/μs (0.020 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)
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 x 211 mm x 46 mm (4.92 in. x 8.31 in. x 1.82 in.)
WEIGHT 0.814 kg (1.80 lb)
POWER SUPPLY AC/DC adaptor, 24 V; lithium-ion battery 23.760 Wh; or 4 AA auxiliary batteries
BATTERY LIFE, LITHIUM-ION Operating time: minimum 12.6 h, 14 h typical, 14.7 h maximum Fast charge: 2 h to 3 h
STANDARDS Designed for EN15317
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
RS-232 Yes
MEMORY CARD Maximum capacity: 2 GB External microSD memory card
VIDEO OUTPUT VGA output standard
INTERNAL DATA LOGGER DATA LOGGER The 38DL 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 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 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

Additional information

Lead Time

5-7 days








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