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Figure 3.- Measurement Configuration Options
2. Depending on measurement, insert the bayonets or close the caliper onto the sample. Click the instrument motion buttons to slowly lower the transducers to the sample (Figure 4). The autoclose button functions for either the caliper or the bayonets.
Figure 4.- GANTRY motion buttons.
Note:
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Insert the bayonets
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until the entire sensor (
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black
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dot) is within the sample. Stop before the bayonets make contact with the liner.
3. The program continually updates the velocity calculation and displays the value (
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Average of the
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sets of stacks) in the Velocity-Auto box (
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Figure 5). It also displays a signal graph with a red vertical auto-pick location line (Figure
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5), where the program's algorithm has placed the first arrival wave.
Figure 5.- Signal graph and data display on the Velocity-Auto box.
Note: Typical slide bar settings are 100 for the stack bar and10mV for the threshold bar.
4. Click Save Data
Note: If the velocity is out of the expected range, or the pick location is not near or at the first arrival wave, contact the PP technician.
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5. The Section Information screen is displayed.
6. Place the cursor in the SCAN field and scan the section label. SAMPLE ID and LIMS ID automatically fills. These ID tags contain information on expedition, site, hole, core, section number and length.
Additional entry field options are the LIMS and MANUAL tags.
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