Omega OM-USB-1208FS Manuale Utente
3
Table of Contents
Preface
About this User's Guide ....................................................................................................................... 5
What you will learn from this user’s guide ......................................................................................................... 5
Conventions in this user’s guide ......................................................................................................................... 5
Where to find more information ......................................................................................................................... 5
Chapter 1
Introducing the OM-USB-1208FS ........................................................................................................ 6
OM-USB-1208FS block diagram ....................................................................................................................... 7
Software features ................................................................................................................................................ 7
Connecting a OM-USB-1208FS to your computer is easy ................................................................................. 8
Chapter 2
Installing the OM-USB-1208FS ............................................................................................................ 9
What comes with your OM-USB-1208FS shipment?......................................................................................... 9
Hardware .......................................................................................................................................................................... 9
Additional documentation ................................................................................................................................................. 9
Unpacking the OM-USB-1208FS ....................................................................................................................... 9
Installing the software ...................................................................................................................................... 10
Installing the hardware ..................................................................................................................................... 10
Chapter 3
Functional Details ............................................................................................................................... 11
Theory of operation - analog input acquisition modes ..................................................................................... 11
Software paced mode .......................................................................................................................................................11
Continuous scan mode .....................................................................................................................................................11
External components ........................................................................................................................................ 11
USB connector .................................................................................................................................................................12
LED .................................................................................................................................................................................12
Screw terminal wiring ......................................................................................................................................................12
Main connector and pin out .............................................................................................................................................13
Analog input terminals (CH0 IN - CH7 IN).....................................................................................................................13
Analog output terminals (D/A OUT 0 and D/A OUT 1) ..................................................................................................16
Digital I/O terminals (Port A0 to A7, and Port B0 to B7) ................................................................................................16
Power terminals ...............................................................................................................................................................16
Calibration terminal .........................................................................................................................................................17
Ground terminals .............................................................................................................................................................17
External trigger terminal ..................................................................................................................................................17
SYNC terminal ................................................................................................................................................................17
Counter terminal ..............................................................................................................................................................17
Accuracy ........................................................................................................................................................... 18
OM-USB-1208FS channel gain queue feature ................................................................................................. 20
Synchronizing multiple units ............................................................................................................................ 21
Chapter 4
Specifications ...................................................................................................................................... 22
Analog input ..................................................................................................................................................... 22
Analog output ................................................................................................................................................... 24
Digital input/output........................................................................................................................................... 24
External trigger ................................................................................................................................................. 25
External clock input/output............................................................................................................................... 25
Counter ............................................................................................................................................................. 25
Non-volatile memory ........................................................................................................................................ 26