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1.

Place hard rock samples in an ambient temperature seawater bath to equilibrate and saturate (4–12 hr). Keep sample saturated until measurement. A bell jar/vacuum pump can aid in saturation.

**Seawater bath is not necessary when using the mini-puck

2.

If the surface of the split core is excessively rough, use a lap plate and grit from the Thin Section Lab to prepare a smooth surface on a split-core piece. Pieces must be at least 10 cm long.

3.

Equilibrate the sample and sensor needle together in an insulated seawater bath for at least 15 min prior to measurement. Do not submerge the puck – let the water level rise to half the depth of the puck or less. Secure the puck to the sample with a rubber band.

4.

Optional - Apply thermal joint compound to the side of the probe where the line source is located.

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1.

Load ThermCon software in offline mode. Ensure that the Text_ID field is blank.

2.

Scan the core label using a scanner, then click Verify Sample.

3.

If login is requested, enter UserName and Password and then click OK.
Note: The folder path is shown on the screen. Do not close this window during measurement.

4.

Run TK04 program and choose Measuring > Configuration.

5.

Set configuration parameters as follows:

–Probe Number: serial number of probe to be used in the measurement (Note: results may be wrong by several percent if the wrong serial number is entered or by a factor of ~2 if the wrong type of probe is entered).
–Root Name: 6 characters or less; suggest Core-Type-Section (no special characters).
–Serial Number: number of repeat measurements at each point (1–99 single measurements).
–Folder: path for saving data results.
–Heating Power: for the VLQ (needle probe), set to twice the estimated thermal conductivity value of measured sediment. For example, 2–3 is good for sediment.

For the HLQ (large and mini puck), set equal to the estimated thermal conductivity value of the measured sediment. The mini puck often gets better results without the thermal compound when measuring the standard.
–Measuring Time: set to at least 80 s (needle probe); set to 60 s for Puck.

Click Expert Options to configure Drift Control and Pause in Minutes (see Step 6).

Enter comments.

6.

To configure Drift Control and Pause in Minutes in Expert Options:
–Drift Control (DCL): limit for the range of temperature drift allowed prior to heating and measuring. A larger number allows quicker but less accurate measurement. Default (unchecked) DCL = 10; Recommended DCL =. 10-20

–Pause in Minutes: insert a pause between single measurements; recommended = 10 min. This parameter does not apply when conducting a single measurement on each core or each core section.

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