Citizen CBM-910 Type II Manual de instrucciones Pagina 92

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Chapter 7 Application Mode
80 HORIBA
3. Set the measurement condition in the Sample add. method (Double) screen.
Enter the 1 and 2 volume of the additive sample, concentration of the standard solution,
volume of the standard solution and ion valency of measurement ion.
4. Tap after complete setting.
The MEAS screen is displayed.
To return the set value to default, tap the .
Setting item and range
Volume of the additive sample 1, 2: 0.01 mL to 1000.00 mL
Ion valency: +2, +1, 1, 2
Concentration of the standard solution: 0.1 mg/L to 19000.0 mg/L
Standard solution volume: 1.0 mL to 19999.9 mL
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 sample solution and tap .
The measurement starts.
8. Tap to proceed to the next measurement.
9. Immerse the ion electrode in the 2 sample 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.
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