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Compatible thermocouples, Temperature accuracy – Measurement Computing USB-2001-TC User Manual

Page 13

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USB-2001-TC User's Guide

Specifications

13

Compatible thermocouples

Table 3. Compatible sensor type specifications

Parameter

Specification

Thermocouple type

J:

–210 °C to 1200 °C

K:

–270 °C to 1372 °C

R:

–50 °C to 1768 °C

S:

–50 °C to 1768 °C

T:

–270 °C to 400 °C

N:

–270 °C to 1300 °C

E:

–270 °C to 900 °C

B:

0 °C to 1820 °C

Temperature accuracy

The following graphs show the errors for each thermocouple type when connected to the USB-2001-TC. The
graphs display the maximum errors at 25 °C and over the full operating temperature range, and account for
cold-junction compensation errors.

The graphs were generated using thermocouples connected to subminiature

connectors of the same type.

The CJC sensor resolution is 0.0625 °C. This is the minimum value of the CJC step width. As such, the reading
may result in a saw tooth curve rather than a square curve as the temperature inside the board changes. This is
the expected behavior.