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EECI ADC-4DU8 Technical Reference

Analog to digital converter
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ADC-4DU8
ANALOG TO DIGITAL
CONVERTER
TECHNICAL REFERENCE
Click for more info:
www.eeci.com/adc-4du8p.htm
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TABLE OF CONTENTS

Specifications.......................................... page 1
Connection Diagram and Warranty......... page 2
Technical Support................................... page 2
Terminal Block Connections.................... page 2
Set-Up and Testing................................. page 3 & 4
Device Manager...................................... page 4
Trouble-Shooting..................................... page 5
Input & Relay Expansion Ports............... page 5
Auto Start-Up.......................................... page 6
The ADC-4DU8 Data Logger.................. page 7
Programming Examples......................... page 7
Voltage Reference for the analog inputs. page 8
Single Ended Analog Inputs.................... page 8
Differential Analog Inputs........................ page 9
Input Amplification and Conditioning..... page 9
Voltage Inputs and Sensor Interfacing.....page 10 & 11
Mounting..................................................page 11
SPECIFICATIONS
Power Supply....................... Powered from USB port (5 volts DC)
Operating Temp. Range......
-40° C to +85° C
Serial Data Protocol............. 75 to 6,000,000 baud - auto detect (defaults to 115,200 baud)
Full duplex operation (data bits, parity, stop bits will auto detect)
Maximum Sampling Rate...... 100 samples per second or better
Analog Inputs....................... 4 single-ended inputs (8 bit resolution)
or 2 fully differential inputs (8 bit resolution)
or 2 single ended and 1 fully differential input (8 bit resolution)
or 3 common negative differential inputs (8 bit resolution)
(8 bit resolution will divide your measurement range into 256 different increments)
Analog Voltage Input Range. 0 to 5 volt (default range)
0 to 3.3 volt (selectable with on board shunt)
user supplied in the range of 1.6 volts to 5 volts (to on board header)
Analog Outputs....................
1 analog output (8 bit - 256 analog increments) 0 to 5 volt default
Expansion Capability............ up to 16 relays (with up to (2) EX-8M expansion cards) or relay/input combinations
up to 16 status inputs (with up to (2) EX-8M expansion cards)
up to 144 relays/inputs using EXM-16 or EXM-32 expansion modules
Software Compatibility.........
Windows XP, Vista, Windows Server, Windows 7, Windows 8.1 and Windows 10
Weight.................................
.5 ounce
Size...................................... 1.875 inches by 2.5 inches
page 6
Page 1

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Summary of Contents for EECI ADC-4DU8

  • Page 1: Table Of Contents

    Input & Relay Expansion Ports....page 5 ANALOG TO DIGITAL The ADC-4DU8 User Interface..page 6 Auto Start-Up.......... page 6 The ADC-4DU8 Data Logger....page 7 CONVERTER Programming Examples......page 7 Voltage Reference for the analog inputs. page 8 Single Ended Analog Inputs....page 8 TECHNICAL REFERENCE Differential Analog Inputs......

  • Page 2: Technical Support

    AUX Header Single-ended Analog (Step 2) Connect your ADC-4DU8 Analog to Digital Converter to any available USB port on your computer using a Connections CC-USBB cable (1 to 15 foot). A high percentage of systems will be up to date and you will not see any activity or a (see page 9 for pop-up message (allow up to 30 seconds for any system message).

  • Page 3: Device Manager

    (+). The test voltage must be within the selected reference voltage and of the correct polarity (the (2) Verify that the Prolific USB to Serial Comm Port entry is the com port used by your ADC-4DU8. You may do this default reference voltage is 5 volts, providing a voltage input range of 0 to 5 volts DC).

  • Page 4: The Adc-4Du8 User Interface

    ReadInputs(); to close the User Interface after the ADC-4DU8 is set-up for your application. A blue 4 icon will appear in your system tray (click to re-open the user interface). The ADC-4DU8 User Interface may be left open when used as a stand alone data logger or if an external application is not used.

  • Page 5: Single Ended Analog Inputs

    VOLTAGE INPUT AMPLIFICATION AND SIGNAL CONDITIONING reference voltage is selected using the on board shunt The ADC-4DU8 defaults to a 0 to 5 volt input range (installation of a voltage reference will allow input ranges as low Option 5: User supplied - must be in the range of 1.6 volts to 5 volts as 0 to 1.6 volts).

  • Page 6: Mounting

    A large variety of sensors, transducers, load cells and other devices that provide an analog output may be connected to the ADC-4DU8. Most types of sensors may be located up to 1,000 feet from the ADC-4DU8. Pull up resistors may Fuse or Limiting Resistor (330 ohm 1 watt) be installed on the underside of the ADC-4DU8 for 2 wire sensors that receive power from the USB port.
  • Page 7 The changes are saved to the adc4du8.ini file. To completely automate the ADC-4DU8, check Start Minimized, Driver Only and Allow External ELECTRONIC ENERGY CONTROL, INC. Commands. In this mode of operation, your program has complete control of the ADC-4DU8 and the User ® 14960 Maple Ridge Rd Interface does not open.

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