MultiLab 4010-1W
ORP
ba76141e07
08/2018
41
6
ORP
6.1
Measuring
6.1.1
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 9.5.3 A
, page 74) in the
System
menu.
To start the
Stability control
function manually, the HOLD function must be
enabled.
IDS ORP sensors are not calibrated. However, you can check IDS
ORP sensors using a test solution.
1.
Connect the ORP sensor to the meter.
The ORP measuring window is displayed.
2.
Temper the test sample or measure the current temperature.
3.
Check the meter with the ORP sensor.
4.
Immerse the ORP sensor in the test sample.
U
157.0
mV
01.02.2014
08:00
i
USB output
