Measuring The Orp - wtw Avantor VWR pH 1100 L Operating Manual

Operation
Stability control
(AutoRead )
Criteria for a stable
measured value
30
2 Release the frozen measured value again with
<MODE>
.
The [HOLD] status display disappears. The display switches
back to the previous indication.

5.4.3 Measuring the ORP

Note
ORP electrodes are not calibrated. However, you can check ORP elec-
trodes using a test solution.
1 Perform the preparatory activities according to section 5.4.1.
2 Submerse the ORP electrode in the sample.
U
157.0
24.8 °C
15.03.2014
Menu
08:00
3 Select the mV display with
The stability control function (AutoRead) continually checks the stability
of the measurement signal. The stability has a considerable impact on
the reproducibility of measured values.
The measured parameter flashes on the display
 as soon as the measured value is outside the stability range
 when the automatic Stability control is switched off.
The Stability control function checks whether the measured values are
stable within the monitored time interval.
Measured
parameter
ORP
mV
USB output
<MODE>
Time interval Stability during the time
interval
Δ : better than 0.3 mV
15 seconds
pH 1100 L
<HOLD>
.
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or
05/2021