VWR MD 8000 L, Руководство по эксплуатации

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ORP MD 8000 L
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ba77218e01 11/2018
7 ORP
7.1 Measuring
7.1.1 Measuring the ORP
NOTE
When connecting a grounded PC/printer, measurements cannot be
performed in grounded media as the values would be incorrect. The USB
interface is not galvanically isolated.
Stability control
(AutoRead)
& HOLD function
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.
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.
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
IDP ORP sensors are not calibrated. However, you can check IDP
ORP sensors using a test solution.
1. Connect the ORP sensor to the meter.
The ORP measuring window is displayed.
2. Adjust the temperature of the solutions and measure the current tem-
perature if the measurement is made without a temperature sensor.
3. Temper the test solution or measure the current temperature.
4. Check the meter with the ORP sensor.
5. Immerse the ORP sensor in the test sample.
U
157.0
mV
24.8 °C
01.11.2018
08:00
i
USB output