VWR MD 8000 L, Руководство по эксплуатации

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Conductivity MD 8000 L
50
ba77218e01 11/2018
You can start the Stability control manually at any time, irrespective of the set-
ting for automatic Stability control (see section 11.6.3 A
UTOMATIC
S
TABILITY
CONTROL
, page 70) 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
<HOLD>
.
The [HOLD] status indicator is displayed.
The HOLD function is active.
You can terminate the Stability control function and the HOLD func-
tion with
<HOLD>
or
<MODE>
at any time.
2. Using
<OK>
, 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. Measurement
data meeting the stability control criterion is marked by AR.
You can prematurely terminate the Stability control function manu-
ally with
<OK>
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.
3. Using
<OK>
, start a further measurement with stability control.
or
Release the frozen measured value again with
<HOLD>
or
<MODE>
.
The [AR] status display disappears. The display switches back to the pre-
vious 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