Multi 3320
Ion concentration
ba77053e04
07/2018
39
Criteria
The AutoRead criteria affect the reproducibility of the measured values. The
following criteria can be adjusted:
high
: highest reproducibility
medium
: medium reproducibility
low
: lowest reproducibility
Freezes the mea-
sured value (HOLD
function)
With the HOLD function, you can freeze the current measured value. The dis-
played measured value stops changing until you switch the HOLD function off.
7.1.2
Measuring the temperature
For reproducible ion-selective measurements, it is essential to measure the
temperature of the test sample.
You have the following options to measure the temperature:
Measurement by an external temperature sensor.
Manual determination and input of the temperature.
The measuring instrument recognizes whether a suitable sensor is connected
and automatically switches on the temperature measurement.
The display of the temperature indicates the active temperature measuring
mode:
If you wish to measure (or calibrate) without temperature sensor, proceed as
follows:
Increasing reproducibility also causes the response time to
increase until a measured value is evaluated as stable.
1.
Freeze the measured value with
<AR>
.
The [HOLD] status indicator is displayed.
2.
Release the frozen measured value again with
<AR>
.
The HOLD function is switched off.
The [HOLD] status display disappears.
Tempera-
ture sensor
Resolution of the
temp. display
Temp. measurement
yes
0.1 °C
Automatic with temperature sensor
-
1 °C
Manual
1.
Measure the current temperature of the test sample.
