Omega Engineering OM-DAQ-USB-2401 manual Introduction, Precautions

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Introduction 1

Section 1 - Introduction

Please read this manual completely before installing and operating your Omega data acquisition system. It’s important to read and follow all notes, cautions, warnings and safety precautions before operating this device. “Device” refers to your data acquisition unit.

1.1Precautions

This device is not designed for use in any medical or nuclear applications.

Do not operate this device in flammable or explosive environments.

Never operate with a power source other than the one recommended in this manual or listed on product labels.

This device has been designed for dry, moisture free indoor applications only.

Do not operate this device outside of the recommended use outlined in this manual.

Never use your data acquisition unit as a portable device. Your unit has been designed to be operated in a permanent installation only.

NOTE:

There are no user serviceable parts inside your device. Attempting to repair or service your unit may void your warranty.

NOTE:

The discharge of static electricity can damage some electronic components. Semiconductor devices are especially susceptible to ESD damage. You should always handle components carefully, and you should never touch connector pins or circuit components unless you are following ESD guidelines in an appropriate ESD controlled area. Such guidelines include the use of properly grounded mats and wrist straps, ESD bags and cartons, and related procedures.

NOTE:

Never remove a USB cable from an active OM-DAQ-USB- 2401 unit while an acquisition is in progress. An active unit is any unit that is currently open and has channels configured for scanned input. Such disconnection may require you to exit and then re-launch Omega DAQ Central, after the USB cable has been connected.

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Contents OM-DAQ-USB-2401 Servicing North America OM-DAQ-USB-2400 Multiple Channel USB Data Acquisition Module International Usage and CE Marking 10-1 OM-DAQ-USB-2400Section List of FiguresExamples of Under Sampling Introduction PrecautionsStatement on CE Marking Safety Warnings and IEC SymbolsGeneral Description & System Components System Components Package Inspection HardwareIncluded Items USB Hubs and Power Adaptors Hardware SetupOM-DAQ-USB-2401 System Components Self-powered Hubs USB-powered HubsPower Adaptors Connecting Your OM-DAQ-USB-2401 Acquisition System to PC Direct Connection to Computer USB Ports Connecting Various Hardware SetupsConnections to Self-Powered and USB-powered Hubs Connection to USB-powered HubOM-DAQ-USB-2401 Mounting Connections to Self-Powered Hub and to USB-Powered HubOM-DAQ-USB-2400 Series OM-DAQ-USB-2401 Wall MountingOM-DAQ-USB-2401 Rail Mounting OM-DAQ-USB-2401 DIN Rail MountingSystem Requirements Software InstallationSoftware Getting StartedWelcome Screen Software SetupConfirm Installation Screen Main Control Window DAQ Central Software OperationToolbar Buttons Toolbar ButtonsFile Menu Main Control Window Pull-Down OperationsTools Menu Channels Tab 2 Device ConfigurationConfiguration Parameter Settings Manual Acquisition is manually started/stopped Level Data Displays Data Tab18. Main Window Screen 23. Waveform Screen Optical Isolation Power Line RejectionA/D Conversion Input Ranges Analog Input ConfigurationMeasurement Duration, Scan Time, and Resolution 27. Calibration/Scan Arrangement Automatic CalibrationThermocouple Measurements 28. Thermocouple WiringChannel Control and Expansion Signal ManagementScan Time and Resolution Resolution Effective Number of Bits ENOB, RMSRMS Under Sampling and AliasingExamples of Under Sampling SignalTriggering Signal ModesNoise Reduction in Differential Mode Averaging System NoiseAnalog Filtering = RC Input and Source ImpedanceCrosstalk Vadc = VT x Ri / Rs + RiOM-DAQ-USB-2401 Design for CE Conformity CE ConformityFerrite Core Basic Checklist TroubleshootingSymptoms and Solutions Service & Calibration Service & CalibrationSpecifications Cold Junction Power SupplyExternal Power Source Thermocouple Input RangeTC Type Temp Typical Fast Slow Thermocouple Accuracy ºC for OM-DAQ-USB-2401International Usage & CE Marking Approvals and Regulatory Compliance10-2 10-3 10-4 WARRANTY/DISCLAIMER Temperature