MercuryiTC
©2014 Oxford Instruments Omicron NanoScience. All rights reserved.
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4 Place the sensor in a location with known temperature T1.
5 Edit Actual T to equal the true temperature T1. Tap Calculate.
6 Place the sensor in a location with known temperature T2.
7 Edit Actual T to equal the true temperature T2. Tap Calculate.
8 Tap Calculate to request the iTC to do the calculations.
9 Tap Save to save the new calibration.
10 Tap Home to return to home page.
In the sequence above, tapping “Calculate” in step 5 writes the pair of values ‘measured
variable value’ and ‘Actual T1 for a T1 reference point to an internal table. Tapping “Calculate”
in step 7 does the same for a T2 reference point. Tapping “Calculate” again will perform
iterative adjustments of ‘Scale’ and ‘Offset’ to find the best small correction to fit the generic
curve to the actual reference point data with the minimum error.
4.11 Types of temperature sensor
The MercuryiTC can use several types of temperature sensor.
4.11.1 Thermocouples
A thermocouple comprises two junctions of dissimilar metals held at different temperatures. This
acts as a voltage source, based on the Seebeck effect, the output voltage of which increases
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