What you will learn from this user's guide ......................4 Conventions in this user's guide ......................... 4 Where to find more information ......................... 4 Chapter 1 Introducing the OM-USB-3101 ......................5 Functional block diagram ........................... 5 Chapter 2 Installing the OM-USB-3101 ......................... 6 What comes with your shipment? ........................
Preface About this User's Guide What you will learn from this user's guide This user's guide describes the Omega Engineering OM-USB-3101 data acquisition device and lists device specifications. Conventions in this user's guide For more information Text presented in a box signifies additional information and helpful hints related to the subject matter you are reading.
(+5 V) or pull-down (0 volts) configuration. The 32-bit counter can count TTL pulses. The OM-USB-3101 is powered by the +5 volt USB supply from your computer. No external power is required. All I/O connections are made to screw terminals.
Installing the hardware Install the software before you install your device The driver needed to run the OM-USB-3101 is installed when you install the software. Therefore, you need to install the software before you install the hardware. To connect the OM-USB-3101 to your system, connect the USB cable to an available USB port on the computer or to an external USB hub connected to the computer.
OM-USB-3101 User's Guide Installing the OM-USB-3101 Calibrating the OM-USB-3101 The OM-USB-3101 is shipped fully calibrated. Calibration coefficients are stored in the device FLASH memory. Return the device to Omega Engineering when calibration is required. The normal calibration interval is once per year.
LED indicates the communication status of the OM-USB-3101. It blinks when data is being Status transferred, and is off when the OM-USB-3101 is not communicating. This LED uses up to 10 mA of current and cannot be disabled. ...
OM-USB-3101 User's Guide Functional Details Figure 3. OM-USB-3101 signal pinout Use 16 AWG to 30 AWG wire gauge when making screw terminal connections. Signal connections Analog voltage outputs The screw terminal pins labeled are voltage output terminals. The voltage output range for...
Refer to the Universal Library User's Guide for information on how to configure the OM-USB-3101 with the Universal Library. When the SYNCLD pin on the slave device receives the signal, the analog output channels on each device are updated simultaneously.
Single-channel 100 Hz max., system dependent Multi-channel 100 Hz/#ch max., system dependent The OM-USB-3101 output voltage level defaults to 0V whenever the output voltage range is Note 1: reconfigured. The OM-USB-3101 output voltage level will also default to 0V: 1) Whenever the host PC is reset, shut down or suspended.
The maximum differential non-linearity specification applies to the entire 0 to 70 °C temperature range Note 3: of the OM-USB-3101. This specification also accounts for the maximum errors due to the software calibration algorithm (in Calibrated mode only) and the DAC8554 digital to analog converter non- linearities.
Available at terminal block pin 56 10 mA max. This is the total quiescent current requirement for the OM-USB-3101 which includes up to 10 mA for Note 7: the status LED. This does not include any potential loading of the digital I/O bits, +5V user terminal, or the VOUTx outputs.
OM-USB-3101 User's Guide Specifications Main connector and pinout Table 15. Main connector specifications Connector type Screw terminal Wire gauge range 16 AWG to 30 AWG Signal Name Signal Name VOUT0 VOUT1 VOUT2 VOUT3 AGND AGND AGND AGND AGND AGND AGND...
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