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Introduction
The Whole Round Multisensor Logger (WRMSL) and Special Track Multisensor Logger (STMSL) are two whole-round systems which allow simultaneous measurements of density, magnetic susceptibility and Pwave velocity. The WRMSL and STMSL are the only two systems, which allow continuous core sections measurements, one after another.
Note: Both tracks function the same way; however, WRMSL measures density, magnetic susceptibility and P wave velocity, whereas STMSL only measures density and magnetic susceptibility. PROCEDURES
PREPARING THE INSTRUMENT
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Procedures
Preparing the Instrument
- 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.
- Click Double-click the IMS icon (Figure 1b). IMS initialize's the instrument and checks the movement of the track. Once initialized, the logger is ready to measure the first section.
Note: For Calibration of the GRA and the Pwave, please see the WRMSL & STMSL User Guide.
Figure 1.- (a) MUT Icon. (b) IMS Icon
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Set Measurement Parameters
- To set the measurement parameters for each instrument, select DAQ > Measurement Editor.
Note: Always set measurement intervals as whole number divisors of the distance between the sensors (30cm), or the movement routine will be highly inefficient. Standard intervals are 2.5 or 5 cm.
2. In the Measurement Editor window, select the Instrument you wish to configure and then click in the Parameters window (Figure 2).
Figure 2.- Instrument Parameters window.
3. In the intrument DAQ Parameters window the user may alter the settings for each instrument (Measurement Interval, Edge, Acquisition Time, Setting the Instrument Online or Offline and Setting the Control of the measurements On or Off). Select Accept Changes. The changes will be written to the configuration file.
4. Select Finished in the Measurement Editor window. Check that the System Status and DAQ Parameters displayed on the main interface window (left side of page) have updated to the values specified.
Preparing Sections
- Core sections measured on the WRMSL and STMSL can be run either immediately after "Core on Deck" or after they have reached temperature equilibrium. The only caveat, is that Pwave velocity, cannot be run "cold" and should only be measured at room temperature (~ 19°C). Temperature equilibrium takes approximately 4 hours.
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Making a Measurement
Note: If you would like to change measurement parameters, please contact the PP technician
- Place section in core tray. Make sure sections are oriented with the blue endcap facing towards the instruments (Figure ).
- Click START. The Section Information screen is displayed
- Place the curson 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 (Figure 4).
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