YSI MultiLab 4010-1W, Руководство по эксплуатации

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MultiLab 4010-1W pH value
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Stability control
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.
5.1.2 Measuring the temperature
For reproducible pH measurements, it is essential to measure the temperature
of the test sample.
IDS sensors measure the temperature with a temperature sensor integrated in
the IDS sensor.
You can terminate the HOLD function and the Stability control 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 mea-
sured parameter flashes.
The [HOLD][AR] status indicator appears as soon as a stable measured
value is recognized. The progress bar disappears, the display of the mea-
sured parameter stops flashing, and there is a beep.
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. If the Stability control function is
prematurely terminated, the current measurement data are output
to the interface without the AutoRead info.
You can switch off the beep (see section 9.5 S
ENSOR
-
INDEPENDENT
SETTINGS
, page 73).
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 inter-
val
pH value 15 seconds
∆
: better than 0.01 pH
Temperature 15 seconds
∆
: better than 0.5 °C