Xylem MULTI 3500i HANDHELD MULTIPARAMETER METERS User Manual
Page 48
Operation
Multi 3500i
46
Preparatory activities
Perform the following preparatory activities when you want to calibrate:
Carrying out an
ISE calibration
Proceed as follows to calibrate the instrument:
1
Connect the ISE combination electrode to the measuring in-
strument. The pH/mV/ISE measuring window is displayed.
2
Keep the standard solutions ready.
3
Measure the temperature of the standard solutions using a
thermometer.
1
In the measured value display, select the ISE measuring win-
dow with <
▲> <▼> and <M>.
2
Start the calibration with <CAL>.
The calibration display appears.
3
Thoroughly rinse the electrode with distilled water.
4
Immerse the electrode in standard solution 1.
5
Select the Set standard setting with <
▲> <▼> and press
<MENU/ENTER>.
6
Set the concentration of the standard solution with <
▲> <▼>
and press <MENU/ENTER>.
7
Measure the temperature of the standard solution using a ther-
mometer.
8
Select the Set temperature setting with <
▲> <▼> and press
<MENU/ENTER>.
9
Set the temperature with <
▲> <▼> and press
<MENU/ENTER>.
10
Select Continue with <
▲> <▼> and press <MENU/ENTER>.
The standard solution is measured.
The measured value is checked for stability (AutoRead).
i Immerse sensor in std. 1
Set temperature:
24 °C
Continue
Set standard:
0.010 mg/l
ISE <CAL>