Managing Basic Operations
Part # 910-250C
27
1. Press [OPTION].
2. Use the slewing keys to move the highlight bar over Setup and press [ENTER].
3. Use the slewing keys to move the highlight bar over Advanced User and press
[ENTER].
4. Use the slewing keys to move the highlight bar over Save ID and press [ENTER].
5. Use the slewing keys to select the desired value, and press [ENTER] to make the
selection.
6. Press [OPTION] to return to the live screen.
RF Detect
Spotweld allows the user to perform single echo or echo-to-echo measurements in RF
mode on either the positive or negative lobe of the waveform. This option removes the
mirrored gates normally present when working in RF mode.
Filter (See Pulser Frequency Selection on page 39)
The EPOCH 4PLUS is equipped with narrowband filters designed to provide a better
signal-to-noise ratio for many applications by filtering out undesired frequencies.
When set to Standard, you can select factory preset bandpass filters. When set to
Advanced, you can customize the filtering by selecting both high and low pass filters
individually.
Zero Offset
The zero offset parameter compensates for the time offset between electric and acoustic
zero points. This offset is attributed to cable and transducer properties, sound delays from
angle beam wedges and delay line tips, etc.
It is extremely important that you do not offset the screen so much that incorrect multiple
backwall echoes are used during the calibration procedure. For this reason, some users
may want to limit the number of preset function key values for the zero offset parameters.
The Standard setting allows you to press only [F1] to directly set the zero offset value to
0.000 µs.
The Advanced setting allows you to access the [F2] through [F5] keys for additional zero
offset presets. These are designed to closely match calibrated zero offset values for
common straight beam, delay line, and angle beam transducers.
3.7.6
USB Connector
The USB 2.0 port located on the top of the instrument allows for high speed data
transmission between the EPOCH 4PLUS and a PC. The most common use of this port is
communication with a PC via the EPOCH 4PLUS GageView PRO Interface Program
(contact Olympus NDT
TM
or you local representative for further details).
Summary of Contents for Panametrics Epoch 4 Plus
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