Omega OM-USB-1208FS manual Non-volatile memory, Microcontroller, Power

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OM-USB-1208FS User's Guide

Specifications

Input low voltage

1.0 V max, –0.5 V absolute min

Note 8: CTR is a Schmitt trigger input protected with a 1.5K Ω series resistor.

Non-volatile memory

Table 15. Non-volatile memory specifications

EEPROM

1,024 bytes

 

 

 

 

 

 

EEPROM Configuration

Address Range

Access

Description

 

 

 

 

 

0x000-0x07F

Reserved

128 bytes system data

 

 

 

 

 

0x080-0x1FF

Read/write

384 bytes cal data

 

 

 

 

 

0x200-0x3FF

Read/write

512 bytes user area

Microcontroller

 

Table 16. Microcontroller specifications

 

 

 

Type

 

High performance 8-bit RISC microcontroller

 

 

 

Program Memory

 

16,384 words

 

 

 

Data Memory

 

2,048 bytes

 

 

 

Power

Table 17. Power specifications

Parameter

 

Conditions

Specification

 

 

 

Supply current (Note 9)

 

80 mA

 

 

 

+5V USB power available (Note 10)

Connected to self-powered hub

4.5 V min, 5.25 V max

 

 

Connected to externally-powered root port hub

 

 

 

 

 

 

 

Connected to bus-powered hub

4.1 V min, 5.25 V max

 

 

 

Output current (Note 11)

Connected to self-powered hub

420 mA max

 

 

Connected to externally-powered root port hub

 

 

 

 

 

 

 

Connected to bus-powered hub

20 mA max

 

 

 

 

Note 9:

This is the total current requirement for the OM-USB-1208FS which includes up to 10 mA for

 

the status LED.

 

 

Note 10: Self-powered hub refers to a USB hub with an external power supply. Self-powered hubs allow a connected USB device to draw up to 500 mA.

Root port hubs reside in the PC’s USB host controller. The USB port(s) on your PC are root port hubs. All externally powered root port hubs (desktop PCs) provide up to 500 mA of current for a USB device. Battery-powered root port hubs provide 100 mA or 500 mA, depending upon the manufacturer. A laptop PC that is not connected to an external power adapter is an example of a battery-powered root port hub.

Bus powered hubs receive power from a self-powered or root port hub. In this case the maximum current available from the USB +5 V is 100 mA. The minimum USB +5 V voltage level can be as low as 4.1 V.

Note 11: This refers to the total amount of current that can be sourced from the USB +5 V, analog outputs and digital outputs.

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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 modesScrew terminal pins USB connectorScrew terminal wiring Analog input terminals CH0 in CH7 Main connector and pin outSingle-ended configuration 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/outputCounter External triggerExternal clock input/output Microcontroller PowerNon-volatile memory 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.