guidelines to minimize thermal gradients and improve the system
accuracy.
• Use small-gauge thermocouple wire. Smaller wire transfers
less heat to or from the terminal junction.
• Run thermocouple wiring together near the TB-9214 to keep
the wires at the same temperature.
• Avoid running thermocouple wires near hot or cold objects.
• Minimize adjacent heat sources and air flow across the
terminals.
• Keep the ambient temperature as stable as possible.
• Make sure the NI 9214 terminals are facing forward or
upward.
• Keep the NI 9214 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.
• If possible, use the foam pad in the TB-9214 opening to
restrict airflow around the terminals.
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ni.com
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NI 9214 Getting Started Guide
