Honeywell VRX180 Manuale Utente

Outputs a block mean average CVn OV over the specified Average Period.  The average is calculated 
from input samples taken at equally spaced Sample Periods.  All samples are discarded at the end of 
the Average Period and the Average Period begins again. 

Samples are ignored when Calibrate Hold is ON(1).  After the Average Period the new average is 
calculated using only the samples taken before and after the Hold.  If no valid samples are taken, the 
output maintains its previous value. 

Table 4-48 describes the CEMS Block Average prompts. See Table 4-2 for additional prompts. 

RANGE LOW 

RANGE HIGH 

OFF or number 

Enter the output’s display limits.  Output is not clamped or 
flashed when it exceeds these limits. 

INPUT 

OFF, analog parameter, number 

Input to be averaged 

RESET 

OFF, discrete parameter, 0, 1 

When discrete is ON(1), average is reset to zero; when 
ON(1)-to-OFF(0), average restarts. 

TIME UNITS 

SECONDS, MINUTES, HOURS, 
or DAYS. 

Time units of the averaging period 

AVERAGE PERIOD 

OFF or number 

Number of time units per average period. 

SAMPLE PERIOD 

OFF or number 

Number of time units between samples.  Must divide 
evenly into Average Period. 

CALIBRATE HOLD 

OFF, discrete parameter, 0, 1 

When ON(1), no samples are taken and the output is held. 

Outputs a rolling mean average CVn OV over the specified Average Period.  Average is updated every 
Frame Period thereafter.  Samples are taken at every scan cycle of the instrument, except when 
Calibrate Hold is ON(1). 

Frame Period

Average Period

Inp ut

Time between  samples  = 1 machine  scan cycle

First average  

Second average  

Third average  

 

Table 4-49 describes the CEMS Rolling Average prompts. See Table 4-2 for additional prompts.