Atec Panametrics-Olympus-Epoch-4 - Manual (Page 3)

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)
Corrects sound path information when
using an angle beam transducer to
inspect a curved surface circumferentially.
Spotweld Overlay
The Weld Overlay feature allows on-
screen comparison of the live waveform
with a stored reference waveform. The
Stamping feature permits stored weld
data to be stamped “good”, “undersized”,
“stick”, or two other operator defined
conditions. (PN: EP4/SPOTWELD)
Floating Gate
Automatically varies Gate Level by -6 dB
or -12 dB of the gated backwall echo.
Results in consistency of edge-depth
measurements by making readings at the
same relative amplitude. (PN: EP4/FG)
Interface Gate
Powerful tool for immersion applications
where the water path distance between
the transducer and front surface of the
part is continually changing. Maintains
the Interface Echo (between the water
and the front surface of the part) on the
left side of the EPOCH 4’s display.
(PN: EP4/IG)
AWS D1.1 and D1.5
Provides a dynamic reflector “indication
rating” for various AWS weld inspection
applications. This allows for a more
efficient inspection by eliminating
manual calculations. (PN: EP4/AWS)
Wave Analysis
Used to select particular points along
an RF waveform and then obtain a
timing/thickness measurement and also
a dB difference between the two points.
Applications include measuring the scale/
oxide buildup on the inner diameter of
boiler tubes. (PN: EP4/WAVE)
DGS/AVG – Now set-up on board!
Flaw sizing technique that permits echo
signals to be evaluated using DGS/AVG
diagram associated with a particular type
of probe and material. The DGS/AVG
diagram shows the relationship among
echo height, flaw size, and distance from
the transducer. (PN: EP4/DGS/AVG)
Expanded Memory
Increases datalogger capacity from 500
waveforms/10,000 thickness readings
to 2,000 waveforms/40,000 thickness
readings. (PN: EP4/ MEM)
High PRF (1,000 Hz)
Increases the PRF rate of the EPOCH 4
and is useful for higher scanning speed
inspections. The high PRF software fixes
the PRF at 1 KHz. (PN: EP4/HPRF)
Low PRF (30 Hz)
Reduces or eliminates “wrap-around”
noise by setting the PRF to a fixed 30
Hz. This feature is often necessary when
inspecting materials that are highly
attenuating or have long sound paths.
(PN: EP4/LPRF)
Auto-Freeze
Provides the ability to automatically
freeze the A-Scan waveform when a gate
alarm has been triggered.
(PN: EP4/AUTOFREEZE)
B-scan
Generates an easy to understand cross-
sectional profile view of an inspected
part. Excellent for corrosion mapping
of pipes, boilers, and storage tanks.
This view can be used to visually verify
acquired thickness measurements and
also highlight areas with critically thin
thickness values. Contact Olympus NDT
for a detailed brochure on the B-Scan
option. (PN: EP4/BSCAN)
GageView Pro
A powerful software that collects,
manages, and formats stored inspection
data. (PN: GAGEVIEWPRO-KIT-SERIAL)
API 5UE: Allows defect sizing accord-
ing to API Recommended Practice 5UE.
Uses the Amplitude Distance Differential
Technique (ADDT) to measure the size
of potential defects during the prove-up
process of OCTG pipe. The measurement
process is simple and repeatable since all
ADDT variables are captured from a Peak
Memory envelope. (PN: EP4/API5UE)
Advanced DAC/TVG: Calculates
signal amplitude as a percentage or
dB level compared to a DAC curve
or a reference echo amplitude fixed
with Time Varied Gain. DAC versions
include ASME, ASME 3, JIS, and
Custom. Contains several key features
including: dynamically adjustable DAC
curves, switchable DAC & TVG
views, 80%-20% DAC/TVG, a flexible
TVG table, and custom DAC
warning curves. (PN: EP4/ADT)
DAC (Distance Amplitude Correction) TVG (Time Varied Gain)