©
National Instruments Corp.
13
NI 9213E Operating Instructions and Specifications
•
Keep the module in a stable and consistent orientation.
•
Allow the thermal gradients to settle after a change in system
power or in ambient temperature. A change in system power
can happen when the system powers on, the system comes out
of sleep mode, or you insert/remove modules.
Using the Autozero Channel
The NI 9213E has an internal autozero channel to compensate for
the offset error. The NI 9213E specifications all assume the
autozero channel is on for every sample, however, you can choose
not to use the autozero channel in software. When the autozero
channel is on, the NI 9213E measures the autozero channel and
subtracts that measurement from the measurement of each
thermocouple channel. Refer to the software help for information
about using the autozero channel. Visit
ni.com/info
and enter
cseriesdoc
for information about C Series documentation.
