Introduction

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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 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 4.- QE Pro Dark Calibration.

5. After the Dark Calibration is complete, the normalize spectra will appear (Figure 5). Click Accept to apply the calibration.

Figure 5.- QE Pro Normalize spectra.

• Making a Measurement

NOTE: If you would like to change measurement parameters, please contact the PP technician.

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1. Place section in the core tray. Make sure the section is oriented blue endcap uptowards calibration standards/benchmark, and is flush against the benchmark (Figure 6).

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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.

    NOTE:  If the system prompts for a QE Pro calibration, please refer to the calibration instructions (shown above).

6. The sensor assemby moves to the bottom of section. A surface profile, taken by the laser, will be acquired (Figure 8). 

Figure 8.- Laser Profile.

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7. After profile completion, a pop-up is displayed, containing the measured section length. Confirm this length visually (Figure 9) and adjust if needed.

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8. Using the pre-cut GLAD wrap, cover the section surface. Click >>>GO to begin MS and color reflectance measurements.

    NOTE: Wrap MUST have a proper seal. Any bubbles or wrinkles WILL affect measurements. Sediment contamination within the sensors WILL cause DAMAGE.

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9. MSP and Color reflectance data graphs are displayed in real time during acquisition (Figure 10).

    NOTE: the QE Pro has indindividual display tabs for each component of the color reflectance. Display tabs can be toggled back and forth.

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10. After data acquisition, measurements of MSP (Magnetic Susceptibility Point) and white standards standard are performed. Placement of the sensors to their respective standard is extremely important. For the MSP measurement, this corresponds to the insertion of the sensor into the standard (Figure 11).

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Figure 11.- Correct position of sensor on the top of the standards.

   NOTE: MSP data can be drift corrected if necessary. Please contact the PP technician for further instructions.

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