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IOtech OMEGA OMB-DAQ-3000 Series User Manual

Usb data acquisition module
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OMEGA OMB-DAQ-3000
USB Data Acquisition Module
A l l t r a d e m a r k s , b r a n d n a m e s , a n d b r a n d s a p p e a r i n g h e r e i n a r e t h e p r o p e r t y o f t h e i r r e s p e c t i v e o w n e r s .
• C r i t i c a l a n d e x p e d i t e d s e r v i c e s
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Artisan Scientific Corporation dba Artisan Technology Group is not an affiliate, representative, or authorized distributor for any manufacturer listed herein.
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Summary of Contents for IOtech OMEGA OMB-DAQ-3000 Series

  • Page 1 OMEGA OMB-DAQ-3000 USB Data Acquisition Module In Stock Used and in Excellent Condition Open Web Page https://www.artisantg.com/53388-1 A l l t r a d e m a r k s , b r a n d n a m e s , a n d b r a n d s a p p e a r i n g h e r e i n a r e t h e p r o p e r t y o f t h e i r r e s p e c t i v e o w n e r s . •...
  • Page 2 User’ s Guide User’ s Guide User’ s Guide User’ s Guide User’ s Guide User’ s Guide User’ s Guide User’ s Guide User’ s Guide User’ s Guide User’ s Guide User’ s Guide User’ s Guide User’ s Guide User’...

  • Page 3: Internet E-Mail

    OMEGAnet ® Online Service Internet e-mail omega.com info@omega.com Servicing North America: U.S.A.: One Omega Drive, P.O. Box 4047 ISO 9001 Certified Stamford, CT 06907-0047 TEL: (203) 359-1660 FAX: (203) 359-7700 e-mail: info@omega.com Canada: 976 Bergar Laval (Quebec) H7L 5A1, Canada TEL: (514) 856-6928 FAX: (514) 856-6886 e-mail: info@omega.ca...

  • Page 4: Warnings, Cautions, Notes, And Tips

    Warnings, Cautions, Notes, and Tips Refer all service to qualified personnel. This symbol warns of possible personal injury or equipment damage under noted conditions. Follow all safety standards of professional practice and the recommendations in this manual. Using this equipment in ways other than described in this manual can present serious safety hazards or cause equipment damage.
  • Page 5 Your order was carefully inspected prior to shipment. When you receive your order, carefully unpack all items from the shipping carton and check for physical signs of damage that may have occurred during shipment. Promptly report any damage to the shipping agent and your sales representative.

  • Page 6: Table Of Contents

    Table of Contents OMB-DAQ-3000 Series, Installation Guide (p/n OMB-1136-0940; M4260/1205) 1 – Device Overviews Block Diagrams ….. 1-1 Connections …… 1-2 Theory of Operation…… 1-3 Software …… 1-15 2 – Connections and Pinouts Overview …… 2-1 Pinout for OMB-DAQ-3000 Series Modules …… 2-2 OMB-PDQ30 Analog Expansion Option ……...
  • Page 7 6 – Setpoint Configuration for Output Control Overview …… 6-1 Detecting Input Values …… 6-3 Controlling Analog, Digital, and Timer Outputs …… 6-4 P2C, DAC, or Timer Update Latency …… 6-6 More Examples of Control Outputs …… 6-7 Detection on an Analog Input, DAC and P2C Updates …… 6-7 Detection on an Analog Input, Timer Output Updates ……...
  • Page 8 OMB-DAQ-3000 Series Installation Guide Contents (1) Install Software …… page IG-2 (2) Connect Signal Lines and Hardware ….. page IG-2 (3) Start DaqView ….. page IG-6 (4) Configure the System ….. page IG-6 (5) Collect Data ….. page IG-7 Customer Assistance ….. page IG-8 Reference Note: After you have completed the installation you should refer to the electronic documents that were automatically installed onto your hard drive as a part of product support.

  • Page 9: Omb-Daq-3000 Series Installation Guide

    (1) Install Software IMPORTANT: Software must be installed before installing hardware. Place the Data Acquisition CD into the CD-ROM drive. Wait for PC to auto-run the CD. This may take a few moments, depending on your PC. If the CD does not auto-run, use the Desktop’s Start/Run/Browse feature and run the Setup.exe file.
  • Page 10 Differential connection is made as follows: 1. The red thermocouple wire connects to the channel’s Low (L) connector. 2. The other color wire connects to the channel’s High (H) connector. Add the O MB-PDQ30 Expansion Option, if applicable. OMB-PDQ30 is not to be connected to a live device. Unplug the USB cable from the host PC prior to connecting the OMB -PDQ30.
  • Page 11 If using an optional OMB-TR-2 power option, connect the OMB-TR-2 to the OMB-DAQ-3000 external power connector; then plug the OMB-TR-2 into a standard 120 VAC outlet. *Do not connect the OMB-CA-179-x USB cable until step 2d. Power Cons umption Model Power Consumption OMB-TR-2 Power Adapter (Typical)
  • Page 12 Power LE The “Power” LED blinks during device detection and initialization; then remains on solid as long as the module has power . If there is insufficient power the LED will go off and an OMB-TR-2 power adapter will be needed. Active LED: T his LED is on whenever active USB communication is taking place between the OMB-D 3000 Series module and the host PC.

  • Page 13: Start Daqview

    (3) Start DaqView From Windows, open DaqView by double clicking on its icon, or use the Windows Desktop Start menu to access the program. You will find DaqView listed in the Program group (Use the desktop Start Menu / Programs to access the group). Once the program is executed, software automatically identifies your OMB-DAQ-3000 Series device Daqand brings up DaqView’s Main Window.

  • Page 14: Collect Data

    (5) Collect Data Click the Enable Readings Column button (17), or the Start All Indicators button (5); the data acquisition begins and the readings column becomes active. Click the Acquire button (12) to send the data to disk. Channel Setup Tab Selected DaqView Main Window, Main Window, a Brief Description of Button Control Functions Item...

  • Page 15: Customer Assistance

    Reference Notes: Refer to the DaqView PDF for information regarding that application. Refer to the OMB-DAQ-3000 Series User’s Guide PDF for hardware related information, including pinouts and block diagrams. The default location for PDF documentation is in the Programs group, which can be accessed from the Windows Desktop.

  • Page 16: Device Overviews

    Device Overviews Block Diagrams …… 1-1 Connections …… 1-2 Product Features …… 1-3 Software ……1-15 DaqView can only be used with one OMB-DAQ at a time. DASYLab and LabView can be used with multiple modules. For multiple module use (via custom programming) refer to the Using Multiple Devices section of the Programmer’s Manual.

  • Page 17: Connections

    Block Diagram for OMB-DAQ-3005 Connections Reference Note: For the OMB-DAQ-3000 Series installation procedure, refer to the OMB-DAQ Installation Guide (OMB-1136-0940; M4260). A copy of the guide is included at the beginning of this manual. USB2.0* Used to connect the OMB-DAQ-3000 Series device to a host PC [or USB hub] via one of the following cables: OMB-CA-179-1, OMB-CA-179-3, OMB-CA-179-5 (1 m, 3m, and 5m lengths, respectively) External...

  • Page 18: Product Features

    Product Features I/O Comparison Matrix Product or System Analog Input Input Analog Output Digital I/O Counter Timer Channels Ranges Channels Channels Inputs Outputs OMB-DAQ-3000 16SE / 8DE OMB-DAQ-3001 16SE / 8DE OMB-DAQ-3005 16SE / 8DE OMB-DAQ-3000 64SE / 32DE with OMB-PDQ30 OMB-DAQ-3001 64SE / 32DE with OMB-PDQ30...

  • Page 19: Analog Input

    Signal I/O Six banks of removable screw-terminal blocks provide connectivity to the 16SE/8DE analog input channels, 24 digital I/O lines, counter/timer channels, and analog outputs (when applicable). Analog Input The OMB-DAQ-3000 series has a 16-bit, 1-MHz A/D coupled with 16 single-ended, or 8 differential analog inputs.
  • Page 20 Example 1: Analog channel scanning of voltage inputs The figure below shows a simple acquisition. The scan is programmed pre-acquisition and is made up of 6 analog channels (Ch0, Ch2, Ch5, Ch11, Ch22, Ch25.) Each of these analog channels can have a different gain.
  • Page 21 Example 2: Analog channel scanning of voltage and temperature inputs The figure below shows a more complicated acquisition. The scan is programmed pre-acquisition and is made up of 6 analog channels (Ch0, Ch2, Ch5, Ch11, Ch22, Ch23.) Each of these analog channels can have a different gain.
  • Page 22 Example 3: Analog and digital channel scanning, once per scan mode The figure below shows a more complicated acquisition. The scan is programmed pre-acquisition and is made up of 6 analog channels (Ch0, Ch2, Ch5, Ch11, Ch22, Ch25) and 4 digital channels (16-bits of digital IO, 3 counter inputs.) Each of the analog channels can have a different gain and each of the counter channels can be put into a different mode (totalizing, pulsewidth, encoder, etc.) The acquisition is triggered and the samples stream to the PC via USB2.
  • Page 23 Example 4: Sampling digital inputs for every analog sample in a scan group The figure below shows another acquisition. The scan is programmed pre-acquisition and is made up of 6 analog channels (Ch0, Ch2, Ch5, Ch11, Ch22, Ch25) and 4 digital channels (16-bits of digital input, 3 counter inputs.) Each of the analog channels can have a different gain and each of the counter channels can be put into a different mode (totalizing, pulsewidth, encoder, etc.) The acquisition is triggered and the samples stream to the PC via USB2.
  • Page 24 USB2.0 versus USB1.1 Connecting an OMB-DAQ-3000 Series device to a USB1.1 port or hub will result in lower transfer speed which may not support continuous data collection at high scan rates. Note that Hi-Speed (USB2.0) ports are forty times faster than the earlier Full-Speed (USB1.1) versions. When a computer has a board with USB 2.0 ports, an “Enhanced”...
  • Page 25 Digital Triggering. A separate digital trigger input line is provided, allowing TTL-level triggering with latencies guaranteed to be less than 1 µs. Both the logic levels (1 or 0), as well as the rising or falling edge can be programmed for the discrete digital trigger input. Pattern Triggering.

  • Page 26: Analog Output

    Calibration Every range of an OMB-DAQ-3000 Series device is calibrated at the factory using a digital NIST traceable calibration method. This method works by storing a correction factor for each range on the unit at the time of calibration. The user can adjust the calibration of the board while it is installed in the acquisition system without destroying the factory calibration.

  • Page 27: Digital Inputs And Outputs

    Digital Inputs and Outputs Twenty-four TTL-level digital I/O lines are included in each of the OMB-DAQ-3000 Series modules. Digital I/O can be programmed in 8-bit groups as either inputs or outputs and can be scanned in several modes (see Input Scanning). Ports programmed as input can be part of the scan group and scanned along with analog input channels, or can be asynchronously accessed via the PC at any time, including when a scanned acquisition is occurring.
  • Page 28 Example 5: Analog channel scanning of voltage inputs and streaming analog outputs The figure below shows a simple acquisition. The scan is programmed pre-acquisition and is made up of 6 analog channels (Ch0, Ch2, Ch5, Ch11, Ch22, Ch25.) Each of these analog channels can have a different gain.

  • Page 29: Counter Inputs

    Counter Inputs Each OMB-DAQ-3000 Series module includes four 32-bit counters; and each of the four counters accepts frequency inputs up to 20 MHz. The high-speed counter channels can be configured on a per-channel basis. Possible configurations include the following modes: Counter Period Pulse width...

  • Page 30: Software

    Multiple OMB-DAQs Multiple modules can be operated synchronously. This is done by designating one as the master. The other modules [slaves] are synchronized to the master by the pacer clock which is externally routed to the designated slave units. For two or more OMB-DAQs to be operated synchronously: (1) Use coax (or twisted-pair wire) to either (a) connect the APCR signals together, or (b) connect the DPCR signals together.
  • Page 31 Reference Notes: o The software documents for: DaqView, ViewXL, and Post Acquisition Data Analysis are not included as part of the hardcopy manual, but are available in PDF version. See the PDF Note, below. o Programming topics are covered in the Programmer’s User Manual (1008-0901). As a part of product support, this manual is automatically loaded onto your hard drive during software installation.

  • Page 32: Connections And Pinouts

    Connections and Pinouts Overview …… 2-1 Pinout for OMB-DAQ-3000 Series Modules …… 2-2 OMB-PDQ30 Analog Expansion Option …… 2-3 Connecting for Single-Ended or Differential …… 2-5 CAUTION Turn off power to all devices connected to the system before connecting cables. Electrical shock or damage to equipment can result even under low-voltage conditions.

  • Page 33: Pinout For Omb-Daq-3000 Series Modules

    Pinout for OMB-DAQ-3000 Series Modules USB2.0 Edge of Module Analog Common Digital Common DAC0 (Note 1) Digital CH 0 DAC1 (Note 1) Digital CH 1 DAC2 (Note 1) Digital CH 2 DAC3 (Note 1) Digital CH 3 Analog Common Digital CH 4 Self Calibration Digital...

  • Page 34: Omb-Pdq30 Analog Expansion Option

    OMB-PDQ30 Analog Expansion Option OMB-PDQ30 is an optional analog expansion module that, when connected to an OMB-DAQ-3000 series device, adds an additional 48 analog inputs. Refer to OMB-PDQ30 specifications sheet for channel input specifications. OMB-DAQ-3000 Series modules can connect to an OMB-PDQ30, directly via DB25 connector or indirectly via an OMB-CA-96A cable.
  • Page 35 Pinout for OMB-PDQ30 DSUB25 Edge of OMB-PDQ30 Module Analog Common Analog CH 63 / CH 31 LO CH 16 / CH 8 HI Analog Analog CH 55 / CH 31 HI CH 24 / CH 8 LO Analog Analog Common Analog Common Analog CH 62...

  • Page 36: Connecting For Single-Ended Or Differential

    Connecting for Single-Ended or Differential Voltage signals can be connected using the Single-Ended method. In the following figure voltage source V1 is connected to Channel 0 and to analog common; and voltage source V2 is connected to Channel 8 and analog common.
  • Page 37 Connections & Pinouts OMB-DAQ-3000 Series User’s Manual 988293...

  • Page 38: Ce-Compliance

    CE-Compliance Overview ……3-1 CE Standards and Directives …… 3-1 Safety Conditions ……3-2 Emissions/Immunity Conditions ……3-2 Overview CE standards were developed by the European Union (EU) dating from 1985 and include specifications both for safety and for EMI emissions and immunity. Now, all affected products sold in EU countries must meet such standards.

  • Page 39: Safety Conditions

    For clarification, terms used in some Declarations of Conformity include: • pollution degree: any addition of foreign matter, solid, liquid or gaseous (ionized gases) that may produce a reduction of dielectric strength or surface resistivity. Pollution Degree I has no influence on safety and implies: the equipment is at operating temperature with non-condensing humidity conditions;...

  • Page 40: Calibration

    Calibration The DaqCal.exe calibration utility does not support OMB-DAQ-3000 Series devices at present. Please contact the factory for the latest calibration information concerning these products. Every range of an OMB-DAQ-3000 Series device is calibrated at the factory using a digital NIST traceable calibration method.
  • Page 41 Calibration OMB-DAQ-3000 Series User’s Manual 988793...

  • Page 42: Counter Input Modes

    Counter Input Modes Tips for Making High-Speed Counter Measurements ( > 1 MHz ) …… 5-1 Debounce Module …… 5-1 Terms Applicable to Counter Modes…….5-5 Counter Options …… 5-5 Counter/Totalize Mode …… 5-6 Period Mode …… 5-8 Pulsewidth Mode …… 5-11 Timing Mode ……...

  • Page 43: Debounce Module

    Trigger After Stable Mode In the “Trigger After Stable” mode, the output of the debounce module will not change state until a period of stability has been achieved. This means that the input has an edge and then must be stable for a period of time equal to the debounce time.
  • Page 44 T2 – During time period T2, the input signal is not stable for a length of time equal to T1 (the debounce time setting for this example.) Therefore, the output stays “high” and does not change state during time period T2. T3 –...
  • Page 45 Use trigger before stable mode when the input signal has groups of glitches and each group is to be counted as one. The trigger before stable mode will recognize and count the first glitch within a group but reject the subsequent glitches within the group if the debounce time is set accordingly. The debounce time should be set to encompass one entire group of glitches as shown in the following diagram.

  • Page 46: Terms Applicable To Counter Modes

    Terms Applicable to Counter Modes The following terms and definitions are provided as an aid to understanding counter modes. Gating: Any counter can be gated by the mapped channel. When the mapped channel is high, the counter will be allowed to count, when the mapped channel is low, the counter will not count but hold its value.

  • Page 47: Counter/Totalize Mode

    Encoder Mode (see page 15). OPT[1:0]: Determines the encoder measurement mode: 1X, 2X, or 4X. OPT2: Determines whether the counter is 16-bits (Counter Low); or 32-bits (Counter High). OPT3: Determines which signal latches the counter outputs into the data stream going back to the module.
  • Page 48 An explanation of the various counter options, depicted in the previous figure, follows. COUNTER: OPT0: This selects totalize or clear on read mode. Totalize Mode – The counter counts up and rolls over on the 16-bit (Low Counter) boundary, or on the 32-bit (High Counter) boundary.

  • Page 49: Period Mode

    Period Mode TIP: When using a counter for a trigger source, it is a good idea to use a pre-trigger with a value of at least 1. The reason is that all counters start at zero with the initial scan; and there will be no valid reference in regard to rising or falling edge.
  • Page 50 PERIOD: OPT[1:0]: Determines the number of periods to time, per measurement. This makes it possible to average out jitter in the input waveform, sampling error, noise, etc. There are four options: (1) The channel’s measurement is latched every time one complete period has been observed. (2) The channel’s measurement is latched every time that 10 complete periods have been observed.
  • Page 51 Upper 16-bits of the 32-bit counter Lower 16-bits of the 32-bit counter Range (Hz) Ticksize (nS) Averaging Range (Hz) Ticksize (nS) Averaging Option Option 15u – 1500u 20833.333 1 – 100 20833.333 150u – 15m 2083.333 10 – 1k 2083.333 1500u –...

  • Page 52: Pulsewidth Mode

    Pulsewidth Mode TIP: When using a counter for a trigger source, it is a good idea to use a pre-trigger with a value of at least 1. The reason is that all counters start at zero with the initial scan; and there will be no valid reference in regard to rising or falling edge.
  • Page 53 PULSEWIDTH: OPT2: Determines whether the pulsewidth is to be measured with a 16-bit (Counter Low), or 32-bit (counter High) counter. Since pulsewidth measurements always have the “stop at the top” option enabled, this option dictates whether the measurement has a range of 0 to 65535 ticks, or 0 to 4,294,967,295 ticks.

  • Page 54: Timing Mode

    Timing Mode TIP: When using a counter for a trigger source, it is a good idea to use a pre-trigger with a value of at least 1. The reason is that all counters start at zero with the initial scan; and there will be no valid reference in regard to rising or falling edge.
  • Page 55 An Example of Timing Mode The following example represents one channel in timing mode. The time desired is between the rising edge on the input channel and the falling edge on the mapped channel. Zeroes are returned, in the scan, until one complete time measurement has been taken.

  • Page 56: Encoder Mode

    Encoder Mode TIP: When using a counter for a trigger source, it is a good idea to use a pre-trigger with a value of at least 1. The reason is that all counters start at zero with the initial scan; and there will be no valid reference in regard to rising or falling edge.
  • Page 57 Representation of Quadrature Encoder Outputs: A, B, and Z As the encoder rotates, the A (or B) signal is indicative of the distance the encoder has traveled. The frequency of A (or B) indicates the velocity of rotation of the encoder. If the Z signal is used to zero a counter (that is clocked by A) then that counter will give the number of pulses the encoder has rotated from its reference.
  • Page 58 ENCODER: OPT[1:0]: This determines the encoder measurement mode: 1X, 2X, or 4X. ENCODER: OPT3: This determines which signal latches the counter outputs into the data stream going back to the 3000 Series device. Normally, the start of scan signal latches the counter outputs at the beginning of every scan.
  • Page 59 Wiring for 1 Encoder The following figure illustrates connections for one encoder to an OMB-DAQ-3000 module. The “A” signal must be connected to an even-numbered channel and the associated “B” signal must be connected to the next [higher] odd-numbered channel. For example, if “A”...
  • Page 60 A typical acquisition might take 6 readings off of the OMB-DAQ-3000 as illustrated below. The user determines the scan rate and the number of scans to take. OMB-DAQ-3000 Series, Acquisition of Six Readings per Scan Note: Digital channels do not take up analog channel scan time. In general, the output of each channel’s counter is latched at the beginning of each scan period (called the start-of-scan.) Every time the 3000 Series module receives a start-of-scan signal, the counter values are latched and are available to the unit.
  • Page 61 Wiring for 2 Encoders The following figure illustrates single-ended connections for two encoders. Differential connections are not applicable. Ground (to Digital Common) To External Power Counter 0 – To Encoder #1 “A” To Ground Counter 1 – To Encoder #1 “B” Counter 2 –...

  • Page 62: Setpoint Configuration For Output Control

    Setpoint Configuration for Output Control Overview …… 6-1 Detecting Input Values …… 6-3 Controlling Analog, Digital, and Timer Outputs …… 6-4 P2C, DAC, or Timer Update Latency …… 6-6 More Examples of Control Outputs …… 6-7 Detection on an Analog Input, DAC and P2C Updates …… 6-7 Detection on an Analog Input, Timer Output Updates ……...
  • Page 63 Criteria Action Input Signal is Equal to X Driven by Condition Compare Setpoint Definition: Update Conditions: X To: • Equal to A True Only: Limit A or X = A • Below A Limit B (Choose 1) X < A If True, then Output Value 1;...

  • Page 64: Detecting Input Values

    Detecting Input Values All setpoints are programmed as part of the pre-acquisition setup, similar to setting up the analog path, debounce mode, or counter mode setup. Since each setpoint acts on 16-bit data, each has two 16-bit compare values: Limit A (High Limit) and Limit B (Low Limit). These limits define the setpoint window.

  • Page 65: Controlling Analog, Digital, And Timer Outputs

    Controlling Analog, Digital, and Timer Outputs Each setpoint can be programmed with an 8-bit digital output byte and corresponding 8-bit mask byte. When the setpoint criteria has been met, the P2C digital output port can be updated with the given byte and mask.
  • Page 66 The setting of a detection window must be done with a scan period in mind. This applies to analog inputs and counter inputs. Quickly changing analog input voltages can step over a setpoint window if not sampled often enough. There are three possible solutions for overcoming this problem: The scan period could be shortened to give more timing resolution on the counter values or analog values The setpoint window can be widened by increasing Limit A and/or lowering Limit B.

  • Page 67: P2C, Dac, Or Timer Update Latency

    P2C, DAC, or Timer Update Latency Setpoints allow DACs, timers, or P2C digital outputs to be updated very quickly. Exactly how fast an output can be updated is determined by the following three factors: scan rate synchronous sampling mode type of output to be updated Example: We set an acquisition to have a scan rate of 100 kHz.

  • Page 68: More Examples Of Control Outputs

    More Examples of Control Outputs Detection on an Analog Input, DAC and P2C Updates Update Mode: Update on True and False Criteria: Ch 5 example: Below Limit; Ch 4 example: Inside Window In this example Channel 5 has been programmed with reference to one setpoint [Limit A], defining a low limit;...

  • Page 69: Detection On An Analog Input, Timer Output Updates

    In the example [upper portion of the preceding figure], the setpoint placed on analog Channel 5 updated DAC1 with 0.0V. The update occurred when Channel 5’s input was less than the setpoint (Limit A). When the value of Channel 5’s input was above setpoint Limit A, the condition of <A was false and DAC1 was then updated with minus1.0V.

  • Page 70: Using The Hysteresis Function

    Using the Hysterisis Function Update Mode: N/A, the Hysterisis option has a forced update built into the function Criteria Used: window criteria for above and below the set limits The figure below shows analog input Channel 3 with a setpoint which defines two 16-bit limits, Limit A (High) and Limit B (Low).

  • Page 71: Using Multiple Inputs To Control One Dac Output

    Using Multiple Inputs to Control One DAC Output Update Mode: Rising Edge, for each of 2 channels Criteria Used: Inside Window, for each of 2 channels The figure below shows how multiple inputs can update one output. In the following figure the DAC2 analog output is being updated.

  • Page 72: The Setpoint Status Register

    The Setpoint Status Register Regardless of which software application you are using with an OMB-DAQ-3000 Series device, a setpoint status register can be used to check the current state of the 16 possible setpoints. In the register, Setpoint 0 is the least significant bit and Setpoint 15 is the most significant bit. Each setpoint is assigned a value of 0 or 1.
  • Page 73 6-12 Setpoint Configuration for Output Control OMB-DAQ-3000 Series User’s Manual 988793...

  • Page 74: General Specifications

    Specifications OMB-DAQ-3000 Series OMB-PDQ30 OMB-DAQ-3000 Series Specifications I/O Comparison Matrix Product or System Analog Input Input Analog Output Digital I/O Counter Timer Channels Ranges Channels Channels Inputs Outputs OMB-DAQ-3000 16SE / 8DE OMB-DAQ-3001 16SE / 8DE OMB-DAQ-3005 16SE / 8DE OMB-DAQ-3000 64SE / 32DE with OMB-PDQ30...

  • Page 75: Analog Inputs

    Analog Inputs Channels: 16 single-ended or 8 differential. Programmable on a per-channel basis as single-ended or differential. Expansion: An additional 48 analog inputs per module via optional OMB-PDQ30 module. Expansion channel features are identical to those of the main channels. Expansion Connector: 25-pin DSUB, female Over-Voltage Protection: ±30V without damage Voltage Measurement Speed: 1 µs per channel...
  • Page 76 Worst Case Temperature Measurement Error vs. OMB-DAQ-3000 Ambient Temperature With Thermocouple at °0C (Excludes Thermocouple Error); AutoZero Disabled; Selected Thermocouple Types: T, J, K, and E Ambient Temperature (ºC) Worst Case Temperature Measurement Error vs. OMB-DAQ-3000 Ambient Temperature With Thermocouple at °0C (Excludes Thermocouple Error); AutoZero Enabled;...
  • Page 77 Accuracy Temperature Coefficient Noise** ±(% Reading + % Range) ± (ppm of Reading + ppm Range)/ºC (cts RMS) Voltage Range* 23ºC ± 10°C, 1 year -30ºC to 13°C and 33ºC to 70ºC -10V 0.031% + 0.008% 14 + 8 0.031% + 0.009% 14 + 9 0.031% + 0.010% 14 + 10...
  • Page 78 Per-Channel Error, External Power °C -0.5 -1.0 -1.5 Channel Per-Channel Error, USB Power °C -0.5 -1.0 -1.5 -2.0 -2.5 Channel Typical Performance of 8 OMB-DAQ-3001 Modules. Assumes 16384 oversampling applied, CMV = 0.0V, 60 minute warm-up, still environment, and 25°C ambient temperature; excludes thermocouple error; = 0°C Note: Specifications are subject to change without notice.

  • Page 79: Input Sequencer

    A/D Specifications Type: Successive approximation Resolution: 16 bit Maximum Sample Rate: 1 MHz Nonlinearity (Integral): ±2 LSB maximum Nonlinearity (Differential): ±1 LSB maximum Input Sequencer Analog, digital, and counter inputs can be scanned synchronously based on either an internal programmable timer, or an external clock source.
  • Page 80 Triggering Trigger Sources: 7, individually selectable for starting and stopping an acquisition. Stop acquisition can occur on a different channel than start acquisition; stop acquisition can be triggered via modes 2, 4, 5, or 6 described below. 1. Single-Channel Analog Hardware Trigger: Any analog input channel can be software programmed as the analog trigger channel, including any of the analog expansion channels.

  • Page 81: Analog Outputs

    Analog Outputs Applicable to OMB-DAQ-3000 and /3001 only Analog output channels are updated synchronously relative to scanned inputs, and clocked from either an OMB-DAQ-3000 Series internal clock, or an external clock source. Analog outputs can also be updated asynchronously, independent of any other scanning in the system. Streaming from disk or memory is supported, allowing continuous waveform outputs (limited only by available PC system resources).
  • Page 82 Pattern Generation Output Two of the 8-bit ports can be configured for 16-bit pattern generation. The pattern can be updated synchronously with an acquisition at up to 4 MHz. Counters One Counter Channel, Typical Each of the four high-speed, 32-bit counter channels can be configured for counter, period, pulse width, time between edges, or multi-axis quadrature encoder modes.

  • Page 83: Frequency/Pulse Generators

    Frequency/Pulse Generators One Timer Channel, Typical Channels: 2 x 16-bit Output Waveform: Square wave Output Rate: 1 MHz base rate divided by 1 to 65535 (programmable) High Level Output Voltage: 2.0V minimum @ -1.0 mA, 2.9V minimum @ -400 µA Low Level Output Voltage: 0.4V maximum @ 400 µA Software DaqViewXL/Plus...
  • Page 84 OMB-PDQ30 Specifications General Operating Temperature: -30˚ to +70˚C Storage Temperature: -40˚ to +80˚C Power: Supplied by DaqBoard/3000 Series or OMB-DAQ-3000 Series; 400 mW (max) Relative Humidity: 0 to 95%, non-condensing Vibration: MIL STD 810E, category 1 and 10 Communications Connector: 25 pin DSUB Signal I/O Connector: Six removable screw-terminal blocks (12 connections each) Dimensions: 269mm W x 92mm D x 45 mm H: (10.6”...

  • Page 85: Accessories And Cables

    OMB-PDQ30 Type T Thermocouple Typical Performance of 12 OMB-PDQ30 Units; 0°C (Note 1) -0.5 -1.0 -1.5 Channel Note 1: Assumes 16384 oversampling applied, CMV = 0.0V, 60 minute warm-up, still environment, and 25°C ambient temperature. Excludes thermocouple error. TC = 0.0 °C Accessories and Cables DIN-rail mounting adapter.

  • Page 86: Appendix A Signal Modes And System Noise

    Appendix A Signal Modes and System Noise Signal Modes …… A-1 Connecting Thermocouples to Screw-Terminal Blocks …… A-2 Shielding …… A-3 TC Common Mode …… A-3 Cold Junction Compensation Techniques …… A-4 System Noise …… A-5 Averaging …… A-5 Analog Filtering …… A-5 Input and Source Impedance ……...

  • Page 87: Connecting Thermocouples To Screw-Terminal Blocks

    Connecting Thermocouples to Screw Terminal Blocks OMB-DAQ-3000 Series modules can measure 16 channels of voltage in Single-Ended mode or 8 channels of temperature in differential mode. You could, instead, mix signal types, for example have 6 thermocouples and 4 voltage channels connected. This combination would occupy the 16 analog signal screw-terminals.

  • Page 88: Shielding

    Shielding Using shielded TC wire with the shield connected to analog common will result in further noise reduction. OMB-DAQ-3000 Series modules have one analog common screw-terminal connection for every 2 analog SE channel connections. You can connect the shield of a shielded thermocouple to one of the analog common terminals.

  • Page 89: Cold Junction Compensation Techniques

    Cold Junction Compensation Techniques The OMB-DAQ-3000 can measure up to 8 channels of temperature. The OMB-PDQ30 can measure up to 24 channels of temperature. Both units employ thermistors to measure the junction temperature (at the terminal block) for each thermocouple connection. These thermistors are inside the unit, just behind the mating terminal block connector on the internal circuit board.

  • Page 90: System Noise

    System Noise Laboratory and industrial environments often have multiple sources of electrical noise. An AC power line is a source of 50 Hz or 60 Hz noise. Heavy equipment (air conditioners, elevators, pumps, etc.) can be a source of noise, particularly when turned on and off. Local radio stations are a source of high-frequency noise, and computers and other electronic equipment can create noise in a multitude of frequency ranges.

  • Page 91: Crosstalk

    Crosstalk Crosstalk is a type of noise related to source impedance and capacitance, in which signals from one channel leak into an adjacent channel, resulting in interference or signal distortion. The impact of source impedance and stray capacitance can be estimated by using the following equation. T = RC Where T is the time constant, R is the source impedance, and C is the stray capacitance.

  • Page 92: Glossary

    Glossary Acquisition A collection of scans acquired at a specified rate as controlled by the sequencer. Analog A signal of varying voltage or current that communicates data. Analog-to-Digital A circuit or device that converts analog values into digital values, such as binary bits, for use in digital Converter (ADC) computer processing.
  • Page 93 Differential mode Differential mode voltage refers to a voltage difference between two signals that are referenced to a common voltage point. Example: Signal 1 is +5 VDC referenced to common. Signal 2 is +6 VDC referenced to common. If the +5 VDC signal is used as the reference, the differential mode voltage is +1 VDC (+ 6 VDC - +5 VDC = +1 VDC).
  • Page 94 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.
  • Page 95 Where Do I Find Everything I Need for Process Measurement and Control? OMEGA…Of Course! Shop online at omega.com TEMPERATURE Thermocouple, RTD & Thermistor Probes, Connectors, Panels & Assemblies Wire: Thermocouple, RTD & Thermistor Calibrators & Ice Point References Recorders, Controllers & Process Monitors Infrared Pyrometers PRESSURE, STRAIN AND FORCE Transducers &...

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