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 portabilit
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.
Portable and easy to use, the EPOCH 6LT flaw detector is an ergonomic, rugged instrument that delivers user comfort and more uptime.
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.
For rope access technicians, the EPOCH 6LT flaw detector offers features to help keep you safe during challenging inspections.
With features designed to make rope access inspections easier and help keep these inspectors safe, the EPOCH 6LT flaw detector is optimized for one-handed operation and easily attaches to a user’s leg or safety harness.
NDT inspectors working in high portability industries need a lightweight instrument that has the features they need to do their job. The EPOCH 6LT flaw detector meets these needs; it’s comfortable to hold in one hand and small enough to fit in a bag with other equipment.
| 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 (4.62 in. × 3.49 in., 5.76 in.) |
| 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 |
| 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). The product rating is confirmed by means of Evident's internal design verification test process. |
|---|---|
| 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 (14 °F to 122 °F) |
| Battery Storage Temperature | 0 °C to 50 °C (32 °F to 122 °F) |
| Pulser | Turnable 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 |
| Maximum Input Signal | 20 Vp |
|---|---|
| Receiver Input Impedance | 400 Ω ± 5% |
| Receiver Bandwidth | DC to 26.5 MHz at -3 dB (standard version)0.2 to 26.5 MHz at -3 dB (ISO 22232-1:2020 compliant version) |
| Digital Filter Settings | 8 digital filter sets (standard version)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) |
| Automated Calibration | Velocity, zero offsetStraight 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 (0.2320 in./μs) |
| Velocity | 635 m/s to 15240 m/s (0.0250 in./μs to 0.6000 in./μs) |
| 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° |
| Measurement Gates | 2 fully independent flaw gates |
|---|---|
| Gate Start | Variable over entire displayed range |
| Gate Width | Variable over entire 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) |
| 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 |
| Measurement Display Locations | User selects up to four measurements from either gate to display on the live screen. |
| 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 |
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.
With optional Wireless LAN, connect your flaw detector to the Evident Connect and access powerful cloud-based features, including:
Cloud file management includes all EPOCH 6LT file types, making it easier than ever to report and communicate your inspection results.
Dynamic DAC/TCG: Calculates signal amplitude as a percentage or decibel level compared to a DAC curve or a reference echo amplitude fixed at a time-varied gain. The DAC version includes standard, custom DAC warning curves, and 20–80% views.
DGS/AVG: Enables echo signals to be evaluated with a DGS/AVG diagram, which illustrates the relationship between echo height, flaw size, and distance from the transducer.
AWS D1.1 and D1.5: Provides a dynamic reflector indication rating for various AWS weld inspection applications. This enables more efficient inspections by eliminating manual calculations.
Corrosion Module: For corrosion inspections, this feature enables automatic ultrasonic setups based on transducer selection with automatic probe recognition for all standard Evident 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.
Inspection scenarios where the EPOCH 6LT is used:
Mining & Metals
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