Omega OMB-DAQBOARD-3000 Benutzerhandbuch

Seite von 108
 
 
A typical acquisition might take 6 readings off of the 3000 Series board module as illustrated below.  The 
user determines the scan rate and the number of scans to take. 
 
DaqBoard/3000 Series board Acquisition of Six Readings per Scan 
 
Note: Digital channels do not take up analog channel scan time. 
 
In general, the output of each channel’s counter is latched at the beginning of each scan period (called the 
start-of-scan.)  Every time the 3000 Series board receives a start-of-scan signal, the counter values are 
latched and are available to the /3000 Series board. 
The 3000 Series board clears all counter channels at the beginning of the acquisition.  This means that the 
values returned during scan period 1 will always be zero.  The values returned during scan period 2 reflect 
what happened during scan period 1.  
 
 
The scan period defines the timing resolution for the /3000 Series board. 
If you need a higher timing resolution, shorten the scan period. 
 
 
 
 
 
DaqBoard/3000 Series User’s Manual
 918494
 
 Counter Input Modes      5-19