Xylem Multi 3420 Manuale Utente Scaricare il pdf (Pagina 80)

Operation Multi 3420

ba75864e11 02/2011

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.

1 Freeze the measured value with <AR>.

The [HOLD] status indicator is displayed.

2Using <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 is output to the interface. Mea-

surement data meeting the stability control criterion is marked

by AR.

3 Using <MENU/ENTER>, start a further measurement with Sta-

bility control.

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

Conductivity ϰ 10 seconds

Δ ϰ: better than

0.5% of measured value

Temperature 10 seconds

Δ T (° C): Better than 0.02

1 2 ... 75 76 77 78 79 80 81 82 83 84 85 ... 117 118

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Xylem Multi 3420 Manuale Utente Pagina 80