Xylem COND3210 HANDHELD CONDUCTIVITY METERS - Manual (Page 29)

Cond 3210 Operation
29 ba75794e01 01/2009
Stability control
(AutoRead )
The stability control function (AutoRead) continually checks the stability
of the measurement signal. The stability has a considerable impact on
the reproducibility of measured values. The display of the measured
parameter flashes until a stable measured value is available.
You can start the Stability control manually at any time, irrespective of
the setting for automatic Stability control (see page 26) in the
Measurement menu.
Note
You can prematurely terminate the Stability control function manually
with at any time.
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.
1 Freeze the measured value with .
The [HOLD] status indicator is displayed.
2 Using , activate the Stability control function
manually.
The [AR] status indicator appears while the measured value is
assessed as not stable.
The [HOLD][AR] status indicator appears as soon as a stable
measured value is recognized.
3 Using , start a further measurement with Stability
control.
or
Release the frozen measured value again with .
The display switches to the measured value display.
The [AR][HOLD] status display disappears.
Measured
parameter Time interval Stability in the time interval
Conductivity
ӕ
10 seconds
Δ
ӕ
: better than
0.5% of measured value
Temperature 10 seconds
Δ
T (° C): Better than 0.02