Xylem wtw Multi 3410, Operating Manual

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Multi 3410
Operation
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parameter flashes until a stable measured value is available.
Irrespective of the setting for automatic Stability control (see section
4.4.3) in the System menu, you can start the Stability control function
manually at any time.
Note
You can prematurely terminate the Stability control function manually
with <MENU/ENTER> at any time. If the Stability control function is pre-
maturely terminated, the current measurement data are output to the
interface without the AutoRead info.
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.
4.10.3 Settings for turbidity sensors
1 Freeze the measured value with <AR> .
The [HOLD] status indicator is displayed.
2 Using <MENU/ENTER> , activate the Stability control function
manually.
The [AR] status indicator appears while the measured value is
assessed as not stable. A progress bar is displayed and the
display of the measured parameter flashes.
The [HOLD][AR] status indicator appears as soon as a stable
measured value is recognized. The progress bar disappears
and the display of the measured parameter stops flashing.
The current measurement data are output to the interface.
Measurement data meeting the stability control criterion are
marked by AR.
3 Using <MENU/ENTER> , start a further measurement with Sta-
bility control .
or
Release the frozen measured value again with
<AR> .
The display switches to the measured value display.
The [AR][HOLD] status display disappears.
Measured
parameter Time interval Stability in the time interval
Turbidity
(FNU/NTU) 15 seconds
Δ
: better than
1.0% of measured value