Ion concentration Multi 9420
62 ba75964e04 04/2015
6.3.3 Sample addition
In the "Sample addition" procedure, a known amount of sample is added to the
standard solution.
The ion concentration in the sample is calculated from the change in potential.
Calibration
Measuring
1. Select the measuring method (see section 6.3 S
ELECTING THE MEASU-
RING METHOD, page 56).
2. Prepare two standard calibration solutions.
3. Perform a two-point calibration according to user guidance.
4. The calibration record is displayed as soon as a stable value is
achieved for the second standard calibration solution.
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01.08.2013 08:00
#1 0.010 mg/l 20.2 mV 25.0 °C
#2 0.020 mg/l 79.2 mV 25.0 °C
Slp.: 54.1 mV
Sensor +++ (Ion type: Ag)
CALIBRATION
ADA 94/IDS DIN
B092500013
5. Start the measurement with <F1>/[continue].
An entry window appears.
6. Prepare the standard solution.
7. If necessary, add the ISA/TISAB solution to the standard solution.
8. Thoroughly rinse the electrode with deionized water.
9. Immerse the electrode in the standard.
i
Immerse sensor in standard
Std. volume 100.0 ml
Std. conc. 1.0 mg/l
ISA/TISAB vol. 1.0 ml
continue
Sample addition
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