Table Of Contents

3.6 Temperature Calibration Check
It is recommended that the ITC temperature calibration be checked approximately once
every 12 months. The measured temperatures should be within +/- 0.2 degrees of the set
temperatures in the iTC 200 software. This procedure requires a Control Company digital meter
and submersible probe or equivalent. The Control Company meter is model #9612; the probe is
model #4021.
Make sure the cells are clean, and load them with degassed, distilled water. Residue in
the cells or empty cells will yield unpredictable results. Insert the probe into the sample cell and
turn it on.
1. Use the “Temperature” control box under the “Instrument Controls” tab in the iTC 200
software to set the temperature to 30°C.
2. Set the Plot Idle Data flag so that the current data is displayed.
3. When the instrument is thermostatting at the target temperature, the DP has settled at a
negative, stable value, and the DT is 0, use the data reader tool and the display from the
meter to take temperature data points, as close together as possible.
4. Repeat for the second check point at 70°C. If the error for each is not less than 0.2°C, please
contact MicroCal for assistance.
It is recommended that users keep a log with the date of the calibration check and the software
and meter readings for each temperature point.
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