Omega Engineering Barcode Reader OM-DAQ-USB-2401 用户手册

4-25

OM-DAQ-USB-2400 Block Diagram  .................... 4-14

4-26

OM-DAQ-USB-2401 Single-ended and Differential
Conections to Analog Input Channels Diagram ... 4-16

4-27

Calibration/Scan Arrangement  ............................ 4-17

4-28

Thermocouple Wiring  ............................................ 4-18

Table 5-1

Scan Rate vs Resolution (ENOB, RMS) .................. 5-2

5-1

Examples of Under Sampling  ................................. 5-3

5-2

Trigger Source Diagram  ........................................... 5-4

5-3

Noise Reduction in Differential Mode  ................... 5-5

5-4

Example of Floating Differential Circuit .................5-5

5-5

Analog to Digital Converter  .................................... 5-7

6-1

OM-DAQ-USB-2401 With Ferrite Cores Installed .. 6-1

6-2

Ferrite Core  ................................................................ 6-2

Table 9-1

Thermocouple Accuracy (C) for 
OM-DAQ-USB-2400 .................................................. 9-1