Omega OM-USB-1208FS manual Main connector and pin out, Analog input terminals CH0 in CH7

Page 13

OM-USB-1208FS User's Guide

Functional Details

Screw terminal – pins 21-40

The screw terminals on the bottom edge of the (pins 21 to 40) provide the following connections:

16 digital I/O connections (PortA0 to Port A7, and Port B0 to Port B7)

One power connection (PC+5 V)

Three ground connections (GND)

Main connector and pin out

Connector type

Screw terminal

 

 

Wire gauge range

16 AWG to 30 AWG

8-channel single-ended mode pin out

4-channel differential mode pin out

Analog input terminals (CH0 IN - CH7 IN)

You can connect up to eight analog input connections to the screw terminal containing pins 1 to 20 (CH0 IN through CH7 IN.) Refer to the pinout diagrams above for the location of these pins.

You can configure the analog input channels as eight single-ended channels or four differential channels. When configured for differential mode, each analog input has 12-bit resolution. When configured for single-ended mode, each analog input has 11-bit resolution, due to restrictions imposed by the A/D converter.

Single-ended configuration

When all of the analog input channels are configured for single-ended input mode, eight analog channels are available. The input signal is referenced to signal ground (GND), and delivered through two wires:

The wire carrying the signal to be measured connects to CHn IN.

The second wire connects to AGND.

The input range for single-ended mode is ±10 V. No other ranges are supported in single-ended mode.

13

Image 13
Contents Page Page Table of Contents OM-USB-1208FS Users Guide About this Users Guide Where to find more informationWhat you will learn from this user’s guide Conventions in this user’s guideChapter Introducing the OM-USB-1208FSSoftware features OM-USB-1208FS block diagramConnecting a OM-USB-1208FS to your computer is easy What comes with your OM-USB-1208FS shipment? Installing the OM-USB-1208FSUnpacking the OM-USB-1208FS HardwareInstalling the hardware Installing the softwareBe sure you are using the latest system software If the LED turns offContinuous scan mode Software paced modeFunctional Details Theory of operation analog input acquisition modesScrew terminal wiring USB connectorScrew terminal pins Single-ended configuration Main connector and pin outAnalog input terminals CH0 in CH7 Differential configuration Single-ended measurements using differential channelsChhi Chlo For more information on analog signal connections Power terminalsFor more information on digital signal connections Analog output terminals D/A OUT 0 and D/A OUTGround terminals Calibration terminalExternal trigger terminal Sync terminalIdeal ADC transfer function AccuracyADC transfer function with offset error Error band plot OM-USB-1208FS channel gain queue featureSynchronizing multiple units Configuring for synchronous data acquisitionAnalog input SpecificationsRange Accuracy LSB Digital input/output Analog outputExternal clock input/output External triggerCounter Non-volatile memory PowerMicrocontroller Channel differential mode Main connector and pin outGeneral 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.