Multi 9420 Conductivity
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You can start the Stability control manually at any time, irrespective of the set-
ting for automatic Stability control (see section 9.6.3 A
UTOMATIC STABILITY CON-
TROL, page 96) in the System menu.
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 mon-
itored time interval. The actual duration is mostly longer.
1. Freeze the measured value with <AR>.
The [HOLD] status indicator is displayed.
The HOLD function is active.
You can terminate the Stability control function and the HOLD func-
tion with <AR> or <M> at any time.
2. Using <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.
As soon as a measured value meets the stability criteria, it is frozen. The
[HOLD][AR] status indicator is displayed, the progress bar disappears
and the display of the measured parameter stops flashing.
The current measurement data is output to the interface. Measurement
data meeting the stability control criterion is marked by AR.
You can prematurely terminate the Stability control function manu-
ally with <ENTER> at any time. When the Stability control function
is prematurely terminated, the current measurement data are out-
put to the interface (PC, USB memory device or USB printer) with-
out AutoRead info.
3. Using <ENTER>, start a further measurement with stability control.
or
Release the frozen measured value again with <AR> or <M>.
The [AR] status display disappears. The display switches back to the
previous indication.
Measured
parameter
Time interval Stability in the time interval
Conductivity ϰ 10 seconds
∆ ϰ: better than
1.0% of measured value
Temperature 15 seconds
∆ : Better than 0.5 °C
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