Omega manual Introducing the OM-USB-1208FS, Chapter

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Chapter 1

Introducing the OM-USB-1208FS

This user's guide contains all of the information you need to connect the OM-USB-1208FS to your computer and to the signals you want to measure.

The OM-USB-1208FS is a USB 2.0 full-speed device supported under popular Microsoft® Windows® operating systems. It is designed for USB 1.1 ports, and was tested for full compatibility with both USB 1.1 and USB 2.0 ports.

The OM-USB-1208FS features eight analog inputs, two 12-bit analog outputs, 16 digital I/O connections, and one 32-bit external event counter. The OM-USB-1208FS is powered by the +5 volt USB supply from your computer. No external power is required.

The analog inputs are software configurable for either eight 11-bit single-ended inputs, or four 12-bit differential inputs. Sixteen digital I/O lines are independently selectable as input or output in two 8-bit ports.

A 32-bit counter can count TTL pulses. The counter increments when the TTL levels transition from low to high (rising-edge).

A SYNC (synchronization) input / output line lets you pace the analog input acquisition of one USB module from the clock output of another.

The OM-USB-1208FS is shown in Figure 1. I/O connections are made to the screw terminals located along each side of the OM-USB-1208FS.

Figure 1. OM-USB-1208FS

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Contents Page Page Table of Contents OM-USB-1208FS Users Guide What you will learn from this user’s guide Where to find more informationAbout this Users Guide Conventions in this user’s guideIntroducing the OM-USB-1208FS ChapterOM-USB-1208FS block diagram Software featuresConnecting a OM-USB-1208FS to your computer is easy Unpacking the OM-USB-1208FS Installing the OM-USB-1208FSWhat comes with your OM-USB-1208FS shipment? HardwareBe sure you are using the latest system software Installing the softwareInstalling the hardware If the LED turns offFunctional Details Software paced modeContinuous scan mode Theory of operation analog input acquisition modesUSB connector Screw terminal wiringScrew terminal pins Main connector and pin out Single-ended configurationAnalog input terminals CH0 in CH7 Single-ended measurements using differential channels Differential configurationChhi Chlo For more information on digital signal connections Power terminalsFor more information on analog signal connections Analog output terminals D/A OUT 0 and D/A OUTExternal trigger terminal Calibration terminalGround terminals Sync terminalAccuracy Ideal ADC transfer functionADC transfer function with offset error OM-USB-1208FS channel gain queue feature Error band plotConfiguring for synchronous data acquisition Synchronizing multiple unitsSpecifications Analog inputRange Accuracy LSB Analog output Digital input/outputExternal trigger External clock input/outputCounter Power Non-volatile memoryMicrocontroller General Main connector and pin outChannel differential mode EnvironmentalChannel single-ended mode

OM-USB-1208FS specifications

The Omega OM-USB-1208FS is a high-performance data acquisition device designed for engineers and technicians who require accurate data logging and analysis in their experiments and applications. This versatile device is equipped with a range of features that make it an ideal choice for various measurement tasks across different industries.

One of the standout features of the OM-USB-1208FS is its ability to support a wide variety of input signals. The device is equipped with 16 analog input channels, which can be used for both voltage and thermocouple inputs, making it suitable for temperature monitoring and other signal measurements. The analog inputs provide a resolution of 16 bits, ensuring precise and reliable readings. Furthermore, it supports sampling rates of up to 100 kS/s, allowing for rapid data acquisition and real-time monitoring.

In addition to its analog capabilities, the OM-USB-1208FS has digital I/O lines that facilitate control and automation tasks. With 8 digital input/output channels, users can easily manage various external devices, sensors, or actuators, enhancing the overall functionality of the data acquisition system. This makes the device suitable for automation projects, as users can trigger actions based on acquired data.

Another distinguishing feature is the built-in USB interface, which offers a straightforward connection to computers without the need for additional power supplies or complex setups. The device is fully compatible with various operating systems, including Windows, making it easy to integrate into existing systems. The included software allows for easy data logging, visualization, and analysis, simplifying the process for users.

The OM-USB-1208FS is designed with durability and reliability in mind. Its compact and rugged construction ensures that it can withstand the rigors of fieldwork and laboratory use. Moreover, the device's comprehensive range of input types and robust performance specifications make it an asset for researchers across diverse fields, including environmental monitoring, manufacturing, and academic research.

In summary, the Omega OM-USB-1208FS is a powerful data acquisition solution that combines a multitude of features and technologies. With its high-resolution analog inputs, digital I/O capabilities, user-friendly USB interface, and reliable construction, it caters to the diverse needs of professionals seeking to capture and analyze data accurately and efficiently. Whether for academic research, industrial applications, or environmental monitoring, the OM-USB-1208FS stands out as a top choice in the data acquisition landscape.
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