Citizen CBM-910 Type II Manuel d'instructions Page 90

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Chapter 7 Application Mode
78 HORIBA
HINT!
For more accurate measurement:
Normally, the amount of the standard solution to be added should be from 0.1% to 10% of
the sample solution. It is desirable that when the standard solution is added to the sample
solution, the concentration of the ion species under measurement increase by 1 to 10
times in the sample solution. If the concentration of the added standard solution is too low
or if the volume of the added standard volume is larger than that of the sample, a large
error may occur in the measurement result.
5. Immerse the ion electrode in sample solution and tap .
The measurement starts. When the indication stabilizes, the HOLD indicator lights up
and the measurement value is determined.
6. Tap to proceed to the next measurement.
7. Immerse the ion electrode in the 1 standard solution and tap .
The measurement starts.
8. Tap to proceed to the next measurement.
9. Immerse the ion electrode in the 2 standard solution and tap .
The measurement starts.
When the measurement is completed, concentration of the sample and the measuring
condition are displayed as measurement results.
Tap to return to the ION standard addition mode screen.
7.1.7 Sample Addition Method (Single) Measurement
This mode is used to obtain the ion concentration of the target ion species by adding a
small amount of the sample to the standard solution for the ion species to measure once,
thus increasing the ion concentration of the target component, and then measuring the
change in electric potential which occurs at that time.
Measurement condition setting
1.
Tap on the right of the Sample addition method item in the ION standard addition
mode screen.
2. Tap on the right of the Sample add. method (Single) item.
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