Olympus Epoch Lt





The new EPOCH LT is the lightest, thinnest flaw detector you’ve ever seen. This is a handheld digital flaw detector that is just 38 mm (1.5 in.) thick. Packed in a 1 kg (2.35 lbs) package the EPOCH LT gives you a fast display update rate at a minimum 60 Hz, automated transducer calibration, a numeric datalogger, and many other measurement features. The EPOCH LT is the perfect solution when you need to perform quick, basic flaw detection in difficult field conditions or demanding production environments.

  • Light, ergonomically designed (1.0 kg/2.35 lbs)
  • Fast, minimum 60 Hz electronics update rate
  • High-power NiMH battery
  • Large, bright, high-resolution LCD with full/split screen views
  • Automated transducer calibration
  • Display freeze holds waveform and soundpath data
  • Soundpath data viewable in inches, millimeters, or microseconds
  • Peak memory feature
  • RF display mode
  • Alarms, threshold positive/negative, or minimum depth
  • Numeric datalogger
  • EMAT probe compatibility (E110-SB)
  • Standard DAC and TVG
HandHeld Flaw Detector

The Heavy-Duty Lightweight
Although small in size, the EPOCH LToffers many of the performance features you’d normally expect to find in bulkier flaw detectors. In addition to its fast 60 Hz update rate, the EPOCH LT has a Display Freeze Mode that holds waveform soundpath data, Peak Memory that simultaneously displays live waveform and peak envelope of A-scan, RF display mode, selectable threshold positive/negative or minimum depth Alarm Modes, and Auto Transducer Calibration that calibrates for transducer zero offset and/or material velocity.
An on-board numeric datalogger is simple to use and can store up to 100 calibrations/2000 thickness measurements. An optional Expanded Memory feature that allows storage of 500 calibrations/10000 thickness measurements. The EPOCH LT datalogger is compatible with files from the other EPOCH 4 series instruments and the GageView™ Pro Interface program.

Extensive Documentation And Transfer Capabilities
The optional Windows®-based GageView™ Pro Interface program adds practical collection, editing, and review capabilities to the EPOCH LT. GageView Pro is a powerful tool that collects, manages, and formats stored inspection data.
GageView Pro database tracking allows setup of inspection plans with pre-loaded calibrations, IDs, and memos. Data can be printed or easily copied and pasted into word processing and spreadsheet documents for further reporting needs.

Some Epoch LT Applications

Measuring Nodularity in Cast Iron
Ultrasonic Testing in the Foundry Industry
Bond Testing in Composite Power Line Insulators
Ultrasonic Preamplifiers
Laminar Cracking in Fiberglass
Ultrasonic Preamplifiers
Ultrasonic Preamplifiers
Measuring Nodularity in Cast Iron
Ultrasonic Preamplifiers
Ultrasonic Measurements of Liquids
High Temperature Ultrasonic Testing
Measuring Internal Oxide Scale in Boiler Tubes
Measuring Nodularity in Cast Iron
Ultrasonic Preamplifiers
Ultrasonic Testing in the Foundry Industry
Bond Testing in Composite Power Line Insulators
High Temperature Ultrasonic Testing
Thickness Testing of Reinforced Rubber Conveyor Belts
Ultrasonic Preamplifiers


Liquid Crystal Display: 320 pixels (W) x 240 pixels (H)
Display Update Rate: Minimum 60 Hz
Sensitivity: 100 dB Max and Reference level sensitivity feature with 6 dB or 0.1 dB selectable resolution
Auto Transducer Calibration: Automated calibration of transducer Zero Offset and/or Material Velocity
Reject: 0% to 80% of full scale in 1% increments
Units: English, Metric, or Microseconds
Material Velocity: 0.025 to 0.6000 in/µsec (635 to 15240 m/S)
– Standard 4 mm to 5,000 mm (0.16 in. to 200 in.)
– Optional 1 mm to 10,000 mm (0.038 in. to 400 in.)
Refracted Angle: Fixed settings of 0°, 30°, 45°, 60°, 70°, or variable from 10° to 85° in 0.1° increments
Peak Memory: Simultaneous display of live A-scan at 60 Hz update rate and peak envelope of A-scan display
Pulser Type: Negative spike excitation and optional tunable square wave
Pulse Energy: Low (100 V), Medium (200 V), High (300 V), and Max (400 V)
Damping: 50, 63, 150, and 400 Ohms
Rectification: Full Wave, Half Wave Positive or Negative, and unrectified RF settings
Analog Bandwidth: 0.3 MHz to 20 MHz at -3 dB
Test Modes: Pulse Echo, Dual, or Thru-Transmission
Alarms: Selectable threshold positive/negative or minimum depth modes
Operating Temperature: -10° C to 50° C (14° F to 122° F)
Storage Temperature: -40° C to 70° C (-40° F to 158° F) depending on battery and display
Power Requirements: AC Mains: 100-120 VAC, 200-240 VAC, 50-60 Hz
Battery: Internal Rechargeable NiMH battery pack rated at 6 V at 3000 mAh
BatteryOperating Time: 5 to 6 hours nominal. 2 hours typical recharge time
Transducer Cable Connectors: LEMO® 00 connectors. Adaptors for LEMO 1 and BNC available.
Keypad: English or International symbols
Languages: Available in keypad selectable languages: English, French, German, Spanish, Italian, Russian, Japanese, and user-defined custom languages
USBHigh Speed Communications Port
Dimensions: (WxHxD)
238 mm x 138 mm x 38 mm
9.375 in. x 5.45 in. x 1.5 in.
Weight: 1.0 kg (2.35 lbs) with battery
PC Requirements: Compatible with Microsoft® Windows® XP® and Microsoft Windows 2000®
Warranty: One year warranty, battery not included. Optional second year warranty available.
Numeric Datalogger

  • Stores up to 100 calibrations and 2000 thickness measurements.
  • Optional Extended memory stores up to 500 calibrations and 10000 thickness measurements

Standard Inclusions

EPOCH LT, Microprocessor-Based Ultrasonic Flaw Detector with numeric datalogger includes:

  • EP4/MCA Mini charger adapter
  • EPLT/BAT Nickel metal hydride rechargeable battery
  • EPLT/CAL-NIST NIST calibration certificate
  • EPLT/MAN Instruction manual
  • 36DLP-CC Transport case
  • DAC/TVG Software

Optional Accessories

  • EP4/SC Shipping hard shell case
  • PLUS/RPC Rubber protective carrying case
  • EPLT/DP Display protectors (LCD)
  • EPLT/MEM Extended memory


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