Omega Engineering USB-4761 User Manual Download Page 38

WARRANTY/DISCLAIMER

OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and
workmanship for a period of 

13 months

from date of purchase. OMEGA’s WARRANTY adds an

additional one (1) month grace period to the normal 

one (1) year product warranty

to cover

handling and shipping time. This ensures that OMEGA’s customers receive maximum
coverage on each product. 

If the unit malfunctions, it must be returned to the factory for evaluation. OMEGA’s Customer
Service Department will issue an Authorized Return (AR) number immediately upon phone or
written request. Upon examination by OMEGA, if the unit is found to be defective, it will be
repaired or replaced at no charge. OMEGA’s WARRANTY does not apply to defects resulting
from any action of the purchaser, including but not limited to mishandling, improper interfacing,
operation outside of design limits, improper repair, or unauthorized modification. This 
WARRANTY is VOID if the unit shows evidence of having been tampered with or shows evidence
of having been damaged as a result of excessive corrosion; or current, heat, moisture or vibra-
tion; improper specification; misapplication; misuse or other operating conditions outside of
OMEGA’s control. Components in which wear is not warranted, include but are not limited to
contact points, fuses, and triacs.

OMEGA is pleased to offer suggestions on the use of its various products. However, 
OMEGA neither assumes responsibility for any omissions or errors nor assumes liability
for any damages that result from the use of its products in accordance with information
provided by OMEGA, either verbal or written. OMEGA warrants only that the parts 
manufactured by the company will be as specified and free of defects. OMEGA MAKES
NO OTHER WARRANTIES OR REPRESENTATIONS OF ANY KIND WHATSOEVER,
EXPRESSED OR IMPLIED, EXCEPT THAT OF TITLE, AND ALL IMPLIED WARRANTIES
INCLUDING ANY WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE ARE HEREBY DISCLAIMED. LIMITATION OF LIABILITY: The remedies of pur-
chaser set forth herein are exclusive, and the total liability of OMEGA with respect to this
order, whether based on contract, warranty, negligence, indemnification, strict liability or
otherwise, shall not exceed the purchase price of the component upon which liability is
based. In no event shall OMEGA be liable for consequential, incidental or special damages.

CONDITIONS:  Equipment sold by OMEGA is not intended to be used, nor shall it be used: (1) as
a “Basic Component” under 10 CFR 21 (NRC), used in or with any nuclear installation or activity;
or (2) in medical applications or used on humans. Should any Product(s) be used in or with any
nuclear installation or activity, medical application, used on humans, or misused in any way,
OMEGA assumes no responsibility as set forth in our basic WARRANTY/DISCLAIMER language,
and, additionally, purchaser will indemnify OMEGA and hold OMEGA harmless from any liability
or damage whatsoever arising out of the use of the Product(s) in such a manner.

RETURN REQUESTS/INQUIRIES

Direct all warranty and repair requests/inquiries to the OMEGA Customer Service Department.
BEFORE RETURNING ANY PRODUCT(S) TO OMEGA, PURCHASER MUST OBTAIN AN
AUTHORIZED RETURN (AR) NUMBER FROM OMEGA’S CUSTOMER SERVICE DEPARTMENT
(IN ORDER TO AVOID PROCESSING DELAYS). The assigned AR number should then be
marked on the outside of the return package and on any correspondence.
The purchaser is responsible for shipping charges, freight, insurance and proper packaging to
prevent breakage in transit. 

FOR 

WARRANTY

RETURNS, please have

the following information available BEFORE 
contacting OMEGA:
1. Purchase Order number under which 

the product was PURCHASED,

2. Model and serial number of the product

under warranty, and

3. Repair instructions and/or specific 

problems relative to the product.

FOR 

NON-WARRANTY

REPAIRS, consult

OMEGA for current repair charges. Have the
following information available BEFORE 
contacting OMEGA:
1.  Purchase Order number to cover the COST

of the repair,

2. Model and serial number of the product, and
3. Repair instructions and/or specific problems 

relative to the product.

OMEGA’s policy is to make running changes, not model changes, whenever an improvement is possible. 
This affords our customers the latest in technology and engineering.

OMEGA is a registered trademark of OMEGA ENGINEERING, INC.

© Copyright 2007 OMEGA ENGINEERING, INC. All rights reserved. This document may not be copied, photocopied,
reproduced, translated, or reduced to any electronic medium or machine-readable form, in whole or in part, without
the prior written consent of OMEGA ENGINEERING, INC.

Summary of Contents for USB-4761

Page 1: ...omega com e mail info omega com For latest product manuals omegamanual info User sGuide USB 4761 8 Channel Relay Isolated DI USB Data Acquisition Module Shop online at...

Page 2: ...Germany Tel 49 0 7056 9398 0 FAX 49 0 7056 9398 29 Toll Free in Germany 0800 639 7678 e mail info omega de United Kingdom One Omega Drive River Bend Technology Centre ISO 9002 Certified Northbank Irla...

Page 3: ...USB 4761 8 channel Relay Isolated DI USB Data Acquisition Module User Manual...

Page 4: ...tallation 12 Figure 2 2 Device Name on the Device Manager 13 Figure 2 3 The Indicates Improper Installation 14 2 4 Device Setup Configuration 14 2 4 1 Setting Up the Device 14 Figure 2 4 Device Manage...

Page 5: ...Connections 25 3 3 1 Single ended Channel Connections 25 Figure 3 2 Isolated Digital Input Connections 25 3 4 Relay Connections 25 Figure 3 3 Relay Output Channel Connections 25 3 5 Field Wiring Cons...

Page 6: ...n on the features of the DAS module a quick start guide for installation and some brief information on software and accessories for the USB 4761 Module Sections include Features Applications Installat...

Page 7: ...al input channels LED indicators to show activated relays High voltage isolation on input channels 2 500 VDC High ESD protection 2 000 VDC Wide input range 5 30 VDC Interrupt handling capability Bus p...

Page 8: ...otection for Industrial Applications When the system has undergone a hot reset i e without turning off the system power USB 4761 can either retain outputs values of each chan nel or return to its defa...

Page 9: ...the following necessary components USB 4761 DAS Module Shielded USB 2 0 cable 1 8 m Driver software DLL drivers included in the companion CD ROM Personal computer or workstation with a USB port runni...

Page 10: ...Figure 1 1 Installation Flow Chart 5 Chapter1...

Page 11: ...Drivers On the other hand advanced users are allowed to use register level programming as another option although this is not recommended due to its laborious and time consuming nature 1 4 2 Device D...

Page 12: ...ease refer to the corresponding sections in this chapter on the Device Drivers Manual to begin your programming efforts You can also look at the example source code provided for each programming tool...

Page 13: ...will return a status code when they are called to perform a certain task for the application When a function returns a code that is not zero it means the function has failed to perform its designated...

Page 14: ...check list proper instructions about unpack ing and step by step procedures for both driver and USB installation Sections include Unpacking Driver Installation Hardware Installation Device Setup Conf...

Page 15: ...u should take following precautions to ward off possible ESD damage Touch the metal part of your computer chassis with your hand to dis charge static electricity accumulated on your body One can also...

Page 16: ...he companion CD ROM that is shipped with your module package Please follow the steps below to install the driver software Step 1 Insert the companion CD ROM into your CD ROM drive Step 2 The Setup pro...

Page 17: ...ard on your computer It is suggested that you refer to the computer s user manual or related documentation if you have any doubts Please follow the steps below to install the module on your sys tem St...

Page 18: ...listed on the Device Manager tab If you see your device name listed but marked with an exclamation sign it means your module has not been correctly installed In this case remove the mod ule from Devic...

Page 19: ...figuration and Testing of your device 2 4 Device Setup Configuration Device Manager is a utility that allows you to set up configure and test your devices and later stores your settings in the system...

Page 20: ...Manager Dialog Box Note If you have properly installed the device driver but still can t find it in Device Manager please close the Device Manager and restart it 2 4 2 Configuring the Device Step 3 Cl...

Page 21: ...ther information 2 5 Device Testing Following the Setup and Configuration procedures to the last step described in the previous section you can now proceed to test the device by clicking the Test Butt...

Page 22: ...r the sta tus of each digital input channel is high or low Figure 2 6 Digital Input Tab in Device Test Dialog 2 5 2 Testing Digital Output Function Click the Digital Output tab to bring up the Digital...

Page 23: ...vice installation procedure is completed you can safely proceed to the next chapter Signal Connections 2 6 Hardware Uninstallation Though the USB modules are hot swappable we still recommend you to fo...

Page 24: ...ht click the Unplug or Eject Hardware icon on your task bar Figure 2 8 Unplug or Eject Hardware Dialog Step3 Select USB4711 Device and press Stop Button Figure 2 9 Stop a Hardware device dialog box 19...

Page 25: ...USB device from the USB port Note Please make sure that you have closed the application programs before unplugging the USB device otherwise some unexpected system errors or damages may hap pen USB 47...

Page 26: ...al Connections This chapter provides useful informa tion on how to connect input and output signals to the USB 4761 via the I O connectors Sections include Overview I O Connectors Field Wiring Conside...

Page 27: ...good signal connection can avoid unnecessary and costly damage to your PC and other hardware devices 3 2 I O Connectors USB 4761 is equipped with plug in screw terminal connectors that facilitate con...

Page 28: ...Figure 3 1 I O Connector Pin Assignment 23 Chapter3...

Page 29: ...B Module is equipped with a LED indicator to show the current status of the device When you plug the USB device into the USB port the LED indicator will blink five times and then stay lit to indicate...

Page 30: ...t bi direc tional input It means that you can apply positive or negative voltage to an isolated input pin Vin The figure below shows how to connect an external input source to one of the card s isolat...

Page 31: ...ny video monitor since it can significantly affect a data acquisition system If the cable travels through an area with significant electromagnetic interference you should adopt individually shielded t...

Page 32: ...A 2 Specifications...

Page 33: ...VAC 0 3 A 120 VAC 0 5 A 240 VAC 0 25 A Max Switching Power 62 5 VA 60 W Max Switching Voltage 220 VDC 250 VAC Max Switching Current 5 A Breakdown Voltage 1500 V Operate time 5 ms max Release time 4 m...

Page 34: ...erminal x 5 Dimensions 132 X 80 X 32 mm 5 2 X 3 2 X 1 3 Power Consumption 60mA 5V typical 400mA 5V max Temperature Operation 0 60 32 140 refer to IEC 68 2 1 2 Storage 20 70 4 158 Relative Humidity 5 9...

Page 35: ...USB 4761 User Manual 30...

Page 36: ...B 2 Function Block...

Page 37: ...Appendix B Function Block USB 4761 User Manual 32...

Page 38: ...otherwise shall not exceed the purchase price of the component upon which liability is based In no event shall OMEGA be liable for consequential incidental or special damages CONDITIONS Equipment sold...

Page 39: ...rs Turbine Paddlewheel Systems Totalizers Batch Controllers pH CONDUCTIVITY pH Electrodes Testers Accessories Benchtop Laboratory Meters Controllers Calibrators Simulators Pumps Industrial pH Conducti...

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