The EPOCH 4 set a new industry standard in 2001 when it was introduced with both a Tunable Square Wave Pulser and a Negative Spike Pulser. These high voltage pulsers offer the operator extensive application versatility and ease of use. The Tunable Square Wave Pulser along with Narrowband filtering produce class-leading material penetration and signal-to-noise ratios in difficult materials such as cast metals, large forgings, composites, and plastics.
Both pulsers are standard equipment on the EPOCH 4PLUS, EPOCH 4, and EPOCH 4B, and optional on the EPOCH LT.

Features

• Customizable narrowband filtering
• Selectable, tunable square wave or negative spike excitation pulser
• Light, ergonomically designed (5.7 lbs / 2.6 Kg)
• Fast minimum 60 Hz display update rate
• High-power NiMH battery
• Large, bright, high-resolution ELD with full/split screen views
• Automated transducer calibration
• 400" (10,000 mm) full screen range at longitudinal velocity of steel
• Superior minimum range capability (0.038" or 1 mm full scale at longitudinal velocity of steel)
• Display Freeze holds waveform and soundpath data
• Soundpath data viewable in inches, millimeters, or microseconds
• Peak Hold and Peak Memory
• RF display mode
• Alarms, threshold positive/negative, or minimum depth
• Dual Gate with Echo-to-Echo measurements
• Security Key enables remote upgrade of software options

Ultrasonic Flaw Detector

The Panametrics-NDT™ EPOCH 4 is an advanced digital ultrasonic flaw detector that combines powerful, fully featured measurement capabilities, a comprehensive internal datalogger, and a wide range of software options to solve many demanding inspection problems.
Signal processing features include a 25 MHz bandwidth to permit testing of thinner materials, a selectable square wave pulser to optimize penetration on thick or attenuating materials, and narrowband filters to improve signal-to-noise ratio in high gain applications. The EPOCH 4 incorporates rugged packaging and a conveniently organized direct-access keypad.

A large capacity datalogger allows field storage of test data that can then be transferred to the PC via its versatile GageView PRO Interface Program.

Easy And Fast Operation
The EPOCH 4 with its robust packaging design, large display, and functional color-coded keypad provides easy and fast operation in difficult inspection environments.
Important keys such as Gain, Freeze, Save Thickness, Save Waveform, Enter, and Slewing Keys are grouped together for easy thumb control and one-handed operation of all critical parameter settings.
The five Function keys allow quick access to preset parameter values that can be customized by the operator.

International Versatility
The EPOCH 4's keypad is available in English or International Symbols. Display languages are keypad selectable in French, German, Spanish, Italian, Russian, Japanese, English, and a custom user defined language.

Sophisticated Alphanumeric Internal Datalogger
The EPOCH 4's sophisticated datalogger is designed for ease of use while providing a wide range of features for virtually all flaw detection and thickness gaging applications. All saved data can be organized in alphanumeric file names and identifier (ID) codes that can be scrolled and reviewed on-screen. A Memo feature permits entry of additional inspection data and the Edit feature can be used to add, delete, or clear file names and ID numbers.
Save and recall inspection data sets in any combination of 500 waveforms (or instrument setups) or 10,000 thickness readings. The expandable memory option saves any combination of up to 2,000 waveforms or 40,000 thickness readings.

Extensive Documentation and Transfer Capabilities
The optional Windows-based GageView ^TM Pro Interface program adds practical collection, editing, and review capabilities to the EPOCH 4. 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. GageView Pro is compatible with the EPOCH 4, EPOCH LT, EPOCH 4B, EPOCH 4 PLUS and EPOCH XT flaw detectors.

Standard Software

DAC (Distance Amplitude Correction) Calculates signal amplitude as a percentage or dB difference of the DAC curve level (ASME, ASME-3, or JIS). Same size reflectors peak along the curve independent of their location. An alarm can be activated when a gated signal breaks the curve.
TVG (Time Varied Gain)
TVG with 40 dB dynamic range corrects for distance/amplitude variations due to material attenuation and beam spreading. Reference echoes are brought to a standard full screen level of 80%.

Software Options

• CSC (Curved Surface Correction)
• Spotweld Overlay
• Floating Gate
• Interface Gate
• AWS D1.1 and D1.5
• Wave Analysis
• DGS/AVG - Now set-up on board!
• Expanded Memory
• High PRF (1,000 Hz)
• Low PRF (30 Hz)
• Auto-Freeze
• B-scan
• API 5UE
• Advanced DAC/TVG

EPOCH 4 Specifications* 

*All specifications are subject to change without notice.



Some Epoch 4 Applications