EPOCH® 6LT flaw detector

The EPOCH 6LT Portable Flaw Detector

Elevate Your Inspections

Don’t compromise on the inspection capabilities of your flaw detector. The EPOCH® 6LT portable flaw detector combines the functionality of a powerful ultrasonic flaw detection device with a form factor designed to thrive in rope access and high portability applications.

Reliable Flaw Detection in the Palm of your Hand

Portable and easy to use, the EPOCH 6LT flaw detector is an ergonomic, rugged instrument that delivers user comfort and more uptime.

Weighs just 890 g with a grip-oriented weight distribution for one-handed operation with minimal wrist fatigue
Rotary knob and simple button design make it easy to use, even when wearing gloves
Engineered to IP65/67 and drop tested
Clear, bright screen for readable A-scans in any light

More Functionality on the Go

The EPOCH 6LT flaw detector’s workflow is simple and straightforward. Despite the instrument’s small size, it has the features and functions to meet the requirements of nearly any conventional ultrasonic inspection application.

Offers all the core functionality of the EPOCH 650 flaw detector in a small, portable instrument
Meets the requirements of ISO 22232-1
Optional corrosion software with center-pin transducer ID
Optional Wireless LAN connectivity

Designed for Rope Access and Ultra-High Portability Applications

For rope access technicians, the EPOCH 6LT flaw detector offers features to help keep you safe during challenging inspections.

With the optional rope access accessory kit, secure the instrument to your leg with a strap or attach it to your harness, leaving your hands free to maintain balance or adjust the probe
Rotate the display from portrait to landscape to properly view the A-scan and readings
For greater flexibility, the 1/4-20 threaded insert enables you to connect the flaw detector to a wide variety of Olympus and third-party accessories

Software Features

Powerful Features Optimized for One-Handed Operation

The EPOCH® 6LT portable flaw detector has a variety of standard and optional software features designed to meet a wide range of flaw detection applications.

Exporting saved inspection files for reporting is easy. Send your inspection results to a removable USB memory stick in a variety of convenient file formats, such as BMP, CSV, and PDF, to quickly communicate your data.

Connected and Cloud Enabled

With optional Wireless LAN, connect your flaw detector to the Olympus Scientific Cloud and access powerful cloud-based features, including:

Wireless firmware upgrade
File backup and archiving
Remote file access and management

Cloud file management includes all EPOCH 6LT file types, making it easier than ever to report and communicate your inspection results.

Standard Software Features for Reliable Flaw Sizing

Dynamic DAC/TCG: compares echo signals to a DAC curve or reference echo
DGS/AVG: compares echo signals to a DGS/AVG diagram
AWS D1.1 and D1.5: Provides a dynamic indication rating for AWS inspection applications

Added Versatility: Optional Software Features

Corrosion Module:

For corrosion inspections, this feature enables automatic ultrasonic setups based on transducer selection with automatic probe recognition for all standard Olympus corrosion dual transducers, Automatic Gain Control (AGC), a thickness gage measurement algorithm, true V-path correction, and transducer wear compensation using an automatic zero function (“Do Zero”). The module also features a color-coded grid view for improved corrosion reporting capabilities.

Back Wall Echo Attenuator (BEA):

Attenuates the back wall of an inspected part using the screen region defined by Gate 2. BEA software enables the user to monitor for back wall drop off while scanning at a high gain level.

Specification

General
User Interface Languages	English, Spanish, French, German, Japanese, Chinese, Portuguese, Russian, Italian
Transducer connections	LEMO 00
Data storage	100,000 IDs onboard
Battery type and life	Single lithium-ion rechargeable standard; 6 h life
Power requirements	AC Mains: 100 VAC to 120 VAC, 200 VAC to 240 VAC, 50 Hz to 60 Hz
Display type	Full VGA (640 × 480 pixels) transflective color LCD, 60 Hz update rate
Display dimensions (W × H, Diag.)	117 mm × 89 mm, 146 mm
Overall Dimensions (W × H × D)	209 mm × 128 mm × 36 mm, 58 mm at the hand grip
Weight	890 g, including lithium-ion battery
Instrument Inputs/Outputs
USB ports	(1) USB 1.1 Full Speed Host (Type A) (1) USB 2.0 Full Speed Client (Type Mini B)
Video output	1 digital video output
Environmental Ratings
IP rating	Ingress Protection (IP) engineered to IP67 (dust tight and water submersion) and IP65 (dust tight and water jets) per IEC 60529-2004 (Degrees of Protection provided by enclosures—IP Code).
Explosive atmosphere	MIL-STD-810F, Method 511.4, Procedure 1.
Shock tested	MIL-STD-810F, Method 516.5, Procedure I, 6 cycles each axis, 15 g, 11 ms half sine.
Vibration tested	MIL-STD-810F, Method 514.5, Procedure I, Annex C, Figure 6, general exposure: 1 hour each axis.
Operating temperature	-10 °C to 50 °C
Battery storage temperature	0 °C to 50 °C
Pulser
Pulser	Tunable square wave
PRF	10 Hz to 2000 Hz in 10 Hz increments
Energy settings	100 V, 200 V, 300 V, or 400 V
Pulse width	Adjustable from 25 nsec to 5,000 nsec (0.1 MHz) with PerfectSquare™ technology
Damping	50, 400 Ω
Receiver
Gain	0 to 110 dB
Maximum input signal	20 Vp
Receiver input impedance	400 Ω ± 5%
Receiver bandwidth	DC to 26.5 MHz at -3 dB (standard version)
Receiver bandwidth	0.2 to 26.5 MHz at -3 dB (ISO 22232-1:2020 compliant version)
Digital filter settings	8 digital filter sets (standard version)
Digital filter settings	7 digital filter sets (ISO 22232-1:2020 compliant version)
Rectification	Full-Wave, Positive Half-Wave, Negative Half-Wave, RF
System linearity	Horizontal: ± 0.5% FSW
Resolution	0.25% FSH, amplifier accuracy ± 1dB
Reject	0 to 85% FSH in 1% increment positions
Amplitude measurement	1.25% to 110% full screen height
Measurement rate	Equivalent to PRF in all modes (single shot)
Calibration
Automated calibration	Velocity, zero offset; Straight beam (first back wall or echo-to-echo); Angle beam (sound path or depth)
Test modes	Pulse echo, dual, or through transmission
Units	Millimeters, inches, or microseconds
Range	4.31 mm to 6,700 mm at 5,900 m/s
Velocity	635 m/s to 15240 m/s
Zero offset	0 to 750 μs
Display delay	-10 microseconds to 2203 microseconds
Refracted angle	0° to 85° in 0.1° increments, then jump to 90°
Gates
Measurement gates	2 fully independent flaw gates
Gate start	Variable over entire displayed range
Gate width	Variable from 0.040 microseconds to end of displayed range
Gate height	Variable from 2 to 95% full screen height in 1% increments
Alarms	Positive and negative threshold/curve, minimum depth (gate 1 and gate 2)
Measurements
Measurement display locations	5 locations available (manual or auto selection)
Gate (1, 2)	Thickness, sound path, projection, depth, amplitude, time-of-flight, min./max. depth, min./max. amplitude, sizing measurements based on mode
Echo-to-echo	Standard gate 2 – gate 1
DAC/TCG	Standard, up to 50 points, 110 dB dynamic TCG range
Special DAC modes	Custom DAC (up to 6 curves), 20–80% view
Curved surface correction	Standard OD or bar correction for angle beam measurements