HP E1313A Manual page 138

Custom Reference
Temperature EU
Conversions
Creating Conversion
Tables
Summary
Chapter 4
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linked to the channel(s) using the command
[SENSe:]FUNCtion:CUSTom:TCouple <
The type parameter specifies the type of thermocouple wire so that the
< >
correct built-in table will be used for reference junction compensation.
Reference junction compensation is based on the reference junction
temperature at the time the custom channel is measured. For more
information see " Thermocouple Reference Compensation" on page 142.
The HP E1313/E1413 can measure reference junction temperatures using
custom characterized RTDs and thermistors. The custom EU table
generated for the individually characterized transducer is loaded to the
appropriate channel(s) using the
command. Since the EU conversion from this custom EU table is to be
considered the " reference junction temperature", the channel is linked to
this EU table using the command
[< range >,](@< ch_list >) .
This command uses the custom EU conversion to generate the reference
junction temperature as explained in the section " Thermocouple Reference
Compensation" on page 142.
To have conversion tables created for your application, contact your
Hewlett-Packard System Engineer.
The following points describe the capabilities of custom EU conversion:
•
A given channel only has a single active EU conversion table
assigned to it. Changing tables requires loading it with a
DIAGnostic:CUSTom:...
•
The limit on the number of different custom EU tables that can be
loaded in an HP E1313/E1413 is the same as the number of channels.
•
Custom tables can provide the same level of accuracy as the built-in
tables. Resistance measurements use a linear conversion table, and
the temperature measurements use the piecewise conversion table.
•
Consult with your HP System Engineer for custom EU tables for
your application.
Understanding the HP E1313/E1413
type >[,< range >],(@<
DIAGnostic:CUSTom:PIECewise
[SENSe:]FUNCtion:CUSTom:REFerence
command.
ch_list >) .
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