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Introduction
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Procedures
Preparing the Instrument
- Open MUT Double-click the MUT icon on the desktop (Figure 1a) and login using ship credentials. For more information see the "Uploading Data to LIMS" section below.
- Double-click the IMS icon on the desktop (Figure 11b). IMS initialize's the instruments and checks the movement of both Exlar actuators. Once initialized, the logger is ready to measure a section.
Figure 1.- (a) MUT Icon. (b) IMS Icon.
QE Pro Calibration
- The Instrument Calibration List screen appears automatically if the QE Pro is out of calibration ,(Figure 2).
Figure 2.- Instrument Calibration List window.
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2. Click CALIBRATE to begin the calibration process, starting with the White calibration. The QE Pro integrating sphere lowers over the QE Pro calibration standard until contact. The Integration Time should be less than 0.55 seconds (Figure
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3).
Figure
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3.- White Calibration
Note: If the integration time increases, contact the PP technician.
3. Click Accept.
4. After the White Calibration is complete, the Dark Calibration will begin (Figure
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4). The difference between the calibration values of Dark Pixels and the Spectral Mean should be less than 100. If this difference is higher or if negative values appear on the spectrum, please contact the PP technician.
When finished click Accept.
Figure
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4.- Dark Calibration
5. After the Dark Calibration is complete, the normalize spectra will appear (Figure
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5). Click Accept to apply the calibration.
Figure
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5.- Normalize spectra
Making a Measurement
NOTE: If you would like to change measurement parameters, please contact the PP technician.
- Place section in the core tray. Make sure the section is oriented blue endcap up, and is flush against the benchmark (Figure 26).
Figure
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6.- Benchmark
2. Adjust the section so that it is parallel to the benchmark.
3. Click START. The Section Information screen is displayed (Figure
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7).
Figure
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7.- Section Information Screen
4. 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.
Optional entry fields include:
Comment: Notes and observations.
Missing Top: Used if material is missing or was sampled at the top of the section. If used, the software automatically adjusts the offset.
Exclude Intervals: Enter section intervals to be excluded, like foam-voids. Excluded intervals will be not be measured.
Measure Control Set: Measurement control for the spectrometer. This option is used exclusively by the PP technician.
5. Click MEASURE
6. The sensor assemby moves to the bottom of section. A surface profile, taken by the laser, will be acquired (Figure
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8).
Figure
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8.- Laser Profile
NOTE: If the system prompts for a QE Pro calibration
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, please refer to the calibration instructions (shown below).
Figure 5.- Asking for calibration window
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