Measurement-computing USB-2416-4AO Manual do Utilizador descarregar pdf (Página 24)

USB-2416-4AO User's Guide Specifications

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The USB-2416-4AO GND and DGND pins are isolated from earth ground. You can connect thermocouple

sensors to voltages referenced to earth ground as long as isolation between the GND/DGND pins and earth

ground is maintained.

Table 4. J type thermocouple accuracy specifications, including CJC measurement error.

All specifications are (±).

A/D data rate

Sensor temperature range Accuracy error

maximum

Accuracy error

typical

Tempco

(°C/°C)

3750 S/s

-210 °C 2.572 °C 1.416 °C 0.022

0 °C 0.935 °C 0.469 °C

1200 °C 1.869 °C 1.456 °C

2000 S/s

-210 °C 2.572 °C 1.416 °C 0.022

0 °C 0.935 °C 0.469 °C

1200 °C 1.869 °C 1.456 °C

1000 S/s

-210 °C 2.572 °C 1.416 °C 0.022

0 °C 0.935 °C 0.469 °C

1200 °C 1.869 °C 1.456 °C

500 S/s

-210 °C 2.442 °C 1.334 °C 0.022

0 °C 0.881 °C 0.415 °C

1200 °C 1.821 °C 1.408 °C

100 S/s

-210 °C 2.442 °C 1.334 °C 0.022

0 °C 0.881 °C 0.415 °C

1200 °C 1.821 °C 1.408 °C

60 S/s

-210 °C 2.442 °C 1.334 °C 0.022

0 °C 0.881 °C 0.415 °C

1200 °C 1.821 °C 1.408 °C

50 S/s

-210 °C 2.442 °C 1.334 °C 0.022

0 °C 0.881 °C 0.415 °C

1200 °C 1.821 °C 1.408 °C

25 S/s

-210 °C 2.442 °C 1.334 °C 0.022

0 °C 0.881 °C 0.415 °C

1200 °C 1.821 °C 1.408 °C

10 S/s

-210 °C 2.442 °C 1.334 °C 0.022

0 °C 0.881 °C 0.415 °C

1200 °C 1.821 °C 1.408 °C

5 S/s

-210 °C 2.442 °C 1.334 °C 0.022

0 °C 0.881 °C 0.415 °C

1200 °C 1.821 °C 1.408 °C

2.5 S/s

-210 °C 2.442 °C 1.334 °C 0.022

0 °C 0.881 °C 0.415 °C

1200 °C 1.821 °C 1.408 °C

To achieve the thermocouple accuracies listed above, the USB-2416-4AO should be warmed up for 45 minutes

after the initial power on. The accuracies listed above are only guaranteed if the USB-2416-4AO is housed in its

plastic enclosure.

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