Configuration software
4.5.6.1 Creating user-defined thermocouple tables
WL Series Configuration Software lets you create your own customised thermocouple
tables. You may want to create your own thermocouple tables if the:
Configuration software does not support the type of thermocouple you want to
use; or
You want to match the table to the calibration of a particular thermocouple
sensor.
You will normally have to enter both cold-junction compensation tables and
linearisation tables for your thermocouple type. Fill the cold-junction table with the
millivolt output of the thermocouple corresponding to each 10-degree temperature
increment. Your thermocouple documentation should contain this information.
If you are using an
external
cold-junction compensation circuit, set all the values in the
cold junction compensation table to 0 and disable cold junction compensation.
The Linearisation table lets you enter up to 51 data points relating the thermocouple
voltage to the desired output value. You must enter the millivolt input values in
ascending order; with the lowest millivolt value entered into entry 1, and the highest in
the last used entry. Unused entries should be set to “100” millivolts.
You can enter the desired output value either as a milliamp value (range 0-20 mA) or
as a raw 16-bit unsigned value. Refer to Appendix A for more information.
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