Omega Engineering OM-DAQ-USB-2401 User Manual

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OM-DAQ-USB-2400
Multiple Channel USB Data Acquisition Module
TABLE OF
CONTENTS
Page
Section 1 - Introduction ....................................................................... 1-1
1.1 Precautions  ................................................................................................ 1-1
1.2 Safety Warnings and IEC Symbols ......................................................... 1-2
1.3 Statement on CE Marking ........................................................................ 1-2
1.4 General Description and System Components  .................................... 1-2
Section 2 - Hardware  .......................................................................... 2-1
2.1 Package Inspection  ................................................................................... 2-1
2.2 Included Items  .......................................................................................... 2-1
Section 3 - Hardware Setup  ................................................................. 3-1
3.1 OM-DAQ-USB-2400 Components  ......................................................... 3-1
3.2 USB Hubs and Power Adaptors  ............................................................. 3-1
3.2.1 USB-powered Hubs  .................................................................... 3-2
3.2.2 Self-powered Hubs  ..................................................................... 3-2
3.2.3 Power Adaptors  .......................................................................... 3-2
3.3 Connecting Your OM-DAQ-USB-2401 Acquistition Systems To PC ... 3-3
3.4 Connecting Various Hardware Setups  .................................................. 3-4
3.4.1 Direct Connection To Computer USB Port(s)  ......................... 3-4
3.4.2 Connection To USB-powered Hub  ........................................... 3-5
3.4.3 Connections To Self-powered and USB-powered Hubs ........ 3-5
3.5 OM-DAQ-USB-2401 Mounting  .............................................................. 3-6
3.5.1 OM-DAQ-USB-2401 Wall Mounting ........................................ 3-7
3.5.2 OM-DAQ-USB-2401 DIN Rail Mounting  ................................ 3-8
Section 4 - Software  ............................................................................ 4-1
4.1 Getting Started  .......................................................................................... 4-1
4.2 Software Installation  ................................................................................ 4-1
4.2.1 System Requirements  ................................................................. 4-1
4.2.2 Software Setup ............................................................................. 4-2
4.3 DAQ Central Software Operation  .......................................................... 4-4
4.3.1 Main Control Window Pull-Down Operations  ...................... 4-6
4.3.2 Device Configuration  ................................................................. 4-8
4.4 Power Line Rejection .............................................................................. 4-14
4.5 Optical Isolation ....................................................................................... 4-14
4.6 A/D Conversion  ..................................................................................... 4-14
4.7 Input Ranges .................................................................................................... 4-15
4.8 Analog Input Configuration .................................................................. 4-15
4.9 Measurement Duration, Scan Time, and Resolution ......................... 4-16
4.10 Automatic Calibration ...........................................................................4-17
4.11 Thermocouple Measurements  ............................................................ 4-18
Section 5 - Signal Management ............................................................ 5-1
5.1 Channel Control and Expansion  ............................................................ 5-1
5.2 Scan Time and Resolution  ....................................................................... 5-1
5.2.1 Scan Time  ..................................................................................... 5-1
5.2.2 Resolution [Effective Number of Bits (ENOB, RMS)] .............5-1
5.3 Under Sampling and Aliasing  ................................................................ 5-2