ORP
pH 3310 IDS
38
ba77035e01
02/2014
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 7.3.3 A
, page 47) in the
System
menu.
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.
Adjust the temperature of the solutions and measure the current tem-
perature if the measurement is made without a temperature sensor.
3.
If necessary, check the ORP sensor using a check solution.
4.
Immerse the ORP sensor in the test sample.
U
157.0
mV
24.8 °C
01.02.2014
08:00
Info
USB output
1.
Freeze the measured value with
<AR>
.
The [HOLD] status indicator is displayed.
The HOLD function is active.
Summary of Contents for pH 3310 IDS
Page 6: ...Contents pH 3310 IDS 6 ba77035e01 02 2014 ...
Page 70: ...Index pH 3310 IDS 70 ba77035e01 02 2014 ...
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