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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 2014 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.

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.

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. 

 

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 vibration; 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 purchaser 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.

Summary of Contents for OM-USB-1208HS Series

Page 1: ......

Page 2: ...6 USA Canada only Tel 203 359 1660 Fax 203 359 7700 e mail info omega com For Other Locations Visit omega com worldwide omega com info omega com The information contained in this document is believed...

Page 3: ...OM USB 1208HS Series Device 9 Chapter 3 Functional Details 10 Analog input acquisition modes 10 Software paced mode 10 Hardware paced mode 10 External components 10 USB connector 10 LEDs 10 Screw term...

Page 4: ...OM USB 1208HS Series User s Guide 4 Mechanical 22 Screw terminal connector and pinout 22...

Page 5: ...ements present information to help you avoid injuring yourself and others damaging your hardware or losing your data bold text Bold text is used for the names of objects on a screen such as buttons te...

Page 6: ...orts although the speed of the module maybe limited when using USB 1 1 ports Each OM USB 1208HS Series device provides the following features 8 single ended SE or four differential DIFF analog input c...

Page 7: ...the block diagram shown here Figure 1 Functional block diagram Software features For information on the features of InstaCal and the other software included with your OM USB 1208HS Series hardware ref...

Page 8: ...on installing the software on the Software for OMB DAQ 2400 OM USB OM WEB and OM WLS Series Data Acquisition Modules CD This booklet is available in PDF at http www omega com manuals manualpdf M4803 p...

Page 9: ...e To restore communication disconnect the USB cable from the computer and then reconnect it This should restore communication and the LED should turn on Calibrating a OM USB 1208HS Series Device OM US...

Page 10: ...alues and written to an onboard FIFO buffer on the device until you stop the scan The FIFO buffer is serviced in blocks as the data is transferred from the device FIFO buffer to the memory buffer on y...

Page 11: ...nnections AGND Six digital ground connections GND One external clock input AICKI and one external clock output AICKO for analog inputs One external clock input AOCKI and one external clock output AOCK...

Page 12: ...FF inputs to screw terminals AIN0 AIN0 to AIN3 AIN3 Refer to Figure 4 for the location of these pins DIFF mode requires two wires plus a ground reference Connect one wire to the high positive signal A...

Page 13: ...guration is pull down You can use the digital I O terminals to detect the state of any TTL level input Refer to the schematic shown in Figure 5 Figure 5 Schematic showing switch detection by digital c...

Page 14: ...M4830 pdf Counter I O The terminals provide connections to each 32 bit counter input channel CTR0 and CTR1 Each counter can count frequencies of up to 20 MHz Refer to Figure 3 on page 11 for the locat...

Page 15: ...e trigger settings for positive edge negative edge and level sensitive edge sensitive but automatically re arms the trigger after it is activated Power outputs You can use the two 5V connections to su...

Page 16: ...lectable range for each channel Absolute maximum input voltage CHx IN to GND 25 V max power on 12 V max power off Input impedance 35 M min Input bandwidth 3 dB All input ranges 2 MHz typ Input leakage...

Page 17: ...hardware Noise distribution is determined by gathering 50 kS with inputs tied to ground at the user connector Samples are gathered at the maximum specified sampling rate of 1 MS s Table 3 Noise perfo...

Page 18: ...DC Power up and reset state 0 V Output noise 0 53 mV rms Settling time to 0 05 20 V output step RL 5 k CL 200 pf 5 S max Absolute accuracy 0 1 Slew rate 6 7 V s typ Offset error drift 10 ppm C typ Gai...

Page 19: ...S AICKI AICKO OM USB 1208HS 2AO AICKI AICKO AOCKI AOCKO OM USB 1208HS 4AO AICKI AICKO AOCKI AOCKO Terminal types AxCKI Input active on rising edge AxCKO Output power on default is 0 V active on rising...

Page 20: ...le 10 Timer specifications Parameter Specification Timer terminal name TMR Timer type PWM output with count period delay and pulse width registers Output value Default state is idle low with pulses hi...

Page 21: ...t Analog output power calculation OM USB 1208HS 2AO OM USB 1208HS 4AO Power per output Iout 16 5 V 0 78 for example 3 mA P 0 003 16 5 0 80 63 5 mW output 5 V output power calculation Power W Iout 5 V...

Page 22: ...pecifications Parameter Specification Connector type Screw terminal Wire gauge range 16 AWG to 30 AWG Table 17 Single ended mode pinout Pin Signal name Pin Signal name 1 AIN0 29 AOUT01 2 AGND 30 AOUT1...

Page 23: ...5 AIN1 33 AOUT32 6 AGND 34 AGND 7 AIN1 35 AICKI 8 AGND 36 AICKO 9 AIN2 37 AOCKI3 10 AGND 38 AOCKO3 11 AIN2 39 TRIG 12 AGND 40 GND 13 AIN3 41 CTR0 14 AGND 42 CTR1 15 AIN3 43 TMR 16 AGND 44 GND 17 empty...

Page 24: ...y 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 limite...

Page 25: ...ity Indicators Turbine Paddlewheel Systems Totalizers Batch Controllers pH CONDUCTIVITY pH Electrodes Testers Accessories Benchtop Laboratory Meters Controllers Calibrators Simulators Pumps Industrial...

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