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PREPARATION FOR USE
T-Type Sensors
TP04300 Series Interface & Applications Manual 2-35
T-Type Sensors
Introduction Two T-type (Copper/Constantan) thermocouple assemblies are supplied with the system: a
disc style and a spring style.
The disc style assembly features a circular sensor element to contact the DUT underside.
The spring style assembly features a narrow rectangular sensor element mounted on a spring
to contact the DUT underside.
The disc style tends to contact a larger DUT surface area than the spring style and is more
responsive than the spring style (approximately 2x to 3x faster): it should be used if test speed
and device throughput are critical.
The spring style, however, is more rugged than the disc style, and if spring style response time
is adequate for the application, then the spring style may be a better choice.
Disc Style To interface the factory supplied T-type disc style thermocouple, follow these steps in
accordance with the Sensor Interface Guidelines, page 2-33.
Install the sensor element on the DUT test socket to contact the DUT when inserted in the
socket. See Typical Test Socket (Disc Type), page 2-36.
Plug the connector on the other end of the thermocouple wiring into the “DUT T” port on the
System I/O Panel.
Spring Style To interface the factory supplied T-type spring style thermocouple, follow these steps in
accordance with the Sensor Interface Guidelines, page 2-33.
Install the sensor element on the DUT test socket to contact the DUT when inserted in the
socket.See Typical Test Socket (Spring Type), page 2-37.
Plug the connector on the other end of the thermocouple wiring into the “DUT T” port on the
System I/O Panel.
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