National Instruments NI USB-TC01 Bedienungsanleitung Seite 8

Thermocouple Measurement Accuracy
Thermocouple Input
NI USB-TC01 User Guide and Specifications
Temperature measurement errors depend in part on the thermocouple type,
the temperature being measured, the accuracy of the thermocouple, and the
cold-junction temperature sensing accuracy.
The NI USB-TC01 supports the J, K, S, T, N, E, R, and B thermocouple
types. The thermocouple input supports the standard minithermocouple
connector.
Figure 7.
If your thermocouple has bare wire leads, you can purchase a screw
terminal minithermocouple connector to use with the NI USB-TC01. For
the best accuracy, the minithermocouple connector type and thermocouple
type should match.
Open-Thermocouple Detection (OTD)
The NI USB-TC01 is equipped with open-thermocouple detection. With
OTD, any open-circuit condition at the thermocouple sensor is detected by
the software. An open channel is detected by driving the input voltage to a
positive value outside the range of the thermocouple output.
Minithermocouple
8
Connector
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