Справочник Пользователя для Advanced Wireless Solutions EMO-500

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AW Company 8809 Industrial Drive, Franksville, WI 53126  à web: www.awcompany.com 
 Tel:  262-884-9800  Fax:  262-884-9810 | Email: aw@awcompany.com          
REV. 4                                          10/05                                      EMO-500 Manual.DOC
 
 
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NOTE:    
The pulses being counted are straight from the flow meter,  
not scaled engineering unit values.
   
5.   Units for Rate. 
 
 
     
This variable will display the Engineering Units required for the flow rate display. This 
is strictly a display and does not perform the actual conversion of raw counted impulses. 
Those calculations are handled by the KFR. Enter the two digit number for the desired  
Units for Rate.
 
     
00 - cc/min   
06 - gram/sec 
01 - liter/min  
07 - lb/min 
02 - gallon/min 
08 - Kg/min 
03 - ounce/min 
09 - Kg/sec 
04 - RPM 
 
10 - lb/sec 
05 - gram/min 
11 - lb/Hr 
12 - Hz (Impulses/sec)    
 
6. Enter Units for Total.
 
   
      
This variable will determine the Engineering Units for Total displayed after the 
totalizer value.  It is also a display function only and doesn't perform the actual 
conversion of total impulses to the correct value.  Those calculations are handled by the 
KFT. 
 
     
Enter the two digit number for the desired Units for Total.
 
 
00 - cc  
 
04 - revolution 
01 - liter  
 
05 - gram 
02 - gallon 
 
06 - lb 
03 - ounce 
 
07 - kg 
08 - Impulses
 
7.   Sample Size..................................................................................................Default 200
 
 
To determine the ratio the total number of pulses from both flow meters are separately 
counted until one of them reaches the programmed Sample Size.  The number of pulses 
from flow meter A is then divided by the number of pulses received from flow meter B.  
The accuracy and response time of the ratio calculation are therefore dependent on 
the Sample Size
.         
     
 To determine a reasonable number to program for Sample Size  the main factor will be 
the flow meter with the lowest pulse rate should produce at least 100 pulses before the 
Ratio calculation.  If 100 pulses are counted on the slowest moving totalizer then the 
accuracy of the ratio calculation should be about 
" 1 %.  
 
 
 
 
 
The display screen #7 (Status Disp. 2) is a useful guide in this selection.  The lower line 
shows the incoming raw pulse count.  If the Sample Amount is say 1000, the ratio display 
will update each time the fastest total increments by 1000.  Also by this method, the 
slower pulse count can be observed.  The default value is 200