Xylem PH3210 FIELD PH METER - Manual (Page 29)

pH 3210 Operation
29 ba75793e02 12/2008
Criteria for a stable
measured value
The Stability control function checks whether the measured values are
stable within the monitored time interval.
The minimum duration until a measured value is assessed as stable is
the monitored time interval. The actual duration is mostly longer.
Measured
parameter Time interval Stability in the time interval
pH value 15 seconds
Δ
pH: better than 0.01