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II) V24/RS232/485 Interface - Single Analyzers and Systems
90003752(1) [AK-Commands] 10/98
AK
2 - 11
Stability control procedure
Yes
Yes
No
No
Yes
No
Wait dead time Tt, if
gases were switched
Start timer for time-out To
Calculate concentration
mean value K1 over time Ti
Set and start timer
for stability time
Calculate concentration
mean value Knew over time Ti
Deviation = | K1 - Knew|
Time out ?
Dev.
≥
Tol.
Stability
time
over ?
Signal stable
Signal = Knew
Signal not
stable
K1 = Knew
Parameters:
To Time-out [xx s] (max. time for stability control)
Tt Dead time [xx s]
(Wait after gas switching)
Ti Integration time [xx,x s] (for K1, Knew)
Ts Stability time [xx s]
Tol. Tolerance [x,x % range]