Managing the Datalogger and Data Communication Features
Part # 910-250C
75
• The file name is limited to eight alphanumeric characters with an extension of three
characters. If no file name is assigned, the instrument automatically assigns a generic
name UNTITLED.001, UNTITLED.002, and so forth.
• The note is limited to 10 alphanumeric characters.
• You can manually enter the date and time. Alternately, the EPOCH 4PLUS has an on-
board real time clock that automatically stamps the file with the current date and time
when saving data to that file. If subsequent information is saved to that file, the
EPOCH 4PLUS automatically updates the stamp with the current date and time.
Once the file name is created, press [F5] to return to the live screen. Whatever file is open
(designated by the flashing cursor) is the file that begins to have data saved to it when
returning to the live A-Scan. The file name displays continually at the top left side of the
screen.
Before any data is stored in the file, press [ID] to enter the first Identification (ID) code. A
cursor appears at the ID entry line at the top right side of the screen. Use the alphanumeric
keypad to type in the ID. To redo an entry, use the blue arrow keys to backspace or press
[ID] a second time. A blank line appears. To toggle back to the original ID, press [ID]
again.
8.5 Saving Waveforms and Thickness Readings
Follow the steps outlined in Section 8.4 to setup a file name in the Memory screen and an
Identifier (ID) file in the live screen.
The EPOCH 4PLUS can save two types of data:
• Thickness Readings: Press [SAVE THICK] to save the ID code along with the
displayed depth, amplitude, or TOF value. The waveform and the setup parameters
will NOT be saved during this process, and these IDs cannot be recalled to the live
screen. Saving this limited data allows the EPOCH 4PLUS to store a larger number of
individual IDs and corresponding measurement values as well as thickness readings.
• Waveforms: Press [SAVE WAVE] to save all waveform data and setup parameters in
the datalogger. These IDs can be recalled to the live screen to restore the instrument’s
settings to what they were when the calibration/waveform was initially saved.
Data is saved in the EPOCH 4PLUS datalogger in the currently displayed file and tagged
with the ID code displayed on the screen. The ID code automatically increments to the
next ID in preparation for saving additional data. See Incrementing ID Codes on page 6.
To save thickness readings and waveforms to a different file already created in the
EPOCH 4PLUS or a completely new file, return to the Memory screen and position the
highlight bar over the desired filename (or on a newly created filename.) When you return
to the live screen, the EPOCH 4PLUS saves data to whichever file was highlighted when
the Memory screen was exited. The file name is also displayed on the top left portion of the
live screen.
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