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
The ADC8-RS232 User Interface........... page 6
Auto Start-Up.......................................... page 6
The ADC8-RS232 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.......................
5 volts DC, 50ma
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.......................
8 single-ended inputs (8, 10 or 12 bit resolution)
or 4 fully differential inputs (8, 10 or 12 bit resolution)
ADC8-8RS232
(8 bit resolution will divide your measurement range into 256 different increments)
ADC8-10RS232
(10 bit resolution will divide your measurement range into 1,024 different increments)
ADC8-12RS232
(12 bit resolution will divide your measurement range into 4,096 different increments)
Analog Voltage Input Range. 0 to 4.096 volt (default range - provides exactly 16 mv divisions per increment with 8
bit, 4 mv divisions with 10 bit or 1 mv divisions with 12 bit and in high precision)
0 to 3.3 volt or 0 to 5 volt external (low precision)
user supplied in the range of 1 volt to 5 volts
Contact EECI support for a pre-installed high precision voltage reference (1.2 volt,
2.048 volt, 2.5 volt, 3 volt, 5 volt or adjustable)
Expansion Capability............
expandable to control up to 136 relays/inputs (or combinations) using
EX-8M, EXM-8, EXM-16 or EXM-32 Relay I/O Expansion Modules
Interface..............................
RS-232 (also available in WiFi version (ADC8-WIFI), Ethernet version
(ADC8-ENET) USB version (ADC-8U) or RS-485 version (ADC8-RS485))
Software Compatibility.........
Windows XP, Vista, Windows Server, Windows 7, 8.1, 10 and Windows 11
Weight.................................
.75 ounce
Size......................................
1.875 inches by 3.625 inches
Page 1
TECHNICAL REFERENCE
ADC8-RS232 SERIES
ANALOG TO DIGITAL
CONVERTER
Click for more info: www.eeci.com/adc8-12rs232p.htm
(937) 349-6000
(800) 842-7714
(937) 349-6000
[email protected]
PHONE...................
ORDERS................
TECH SUPPORT...
E-mail.....................
www.eeci.com
