Orp Voltage; Measuring; Measuring The Orp - wtw VWR MU 6100 H Operating Manual

ORP voltage

Stability control
(AutoRead )
Criteria for a stable
measured value
38
7 ORP voltage
7.1

Measuring

7.1.1

Measuring the ORP

NOTE
When connecting an grounded PC/printer, measurements cannot be
performed in grounded media as the values would be incorrect.
The USB interface is not galvanically isolated.
1. Connect the ORP electrode to the meter.
2. If necessary, select the U (mV) display with
3. When measuring without temperature sensor:
– Temper the test sample, or measure the current temperature.
– Enter the temperature value in the menu.
4. Rinse the ORP electrode and immerse it in the test sample.
The measured value is checked for stability (automatic stability control).
The display of the measured parameter flashes.
5. Wait for a stable measured value.
The display of the measured parameter no longer flashes.
U
157.0
15.02.2014
Menu
The stability control function (AutoRead) continually checks the stability of the
measurement signal. The stability has a considerable impact on the reproduc-
ibility of measured values (see section 11.2.3 A
page 71).
The Stability control function checks whether the measured values are stable
within the monitored time interval.
Measured
parameter
ORP
Temperature
The minimum duration until a measured value is assessed as stable is the
monitored time interval. The actual duration is mostly longer.
mV
24.8 °C
14:15
Time interval
15 seconds
15 seconds
MU 6100 H
<MODE>
.
S
UTOMATIC TABILITY CONTROL
Stability in the time interval
Δ : better than 0.3 mV
Δ : better than 0.5 °C
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05/2021