Measurement Computing USB-2416-4AO User Manual
Page 24
USB-2416-4AO User's Guide
Specifications
24
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.