
Instruction Manual
CyberScan pH5500/ 5000
There are two direct reading methods. Direct Reading with standards
and Direct Reading with Blank Offset. These types of measurements
allow you to directly read the concentration of your sample after
standardizing the meter with ion standards of known values or blank
values.
Direct Reading Standards
This is the most common method of ion measurement. You can
directly read the concentration of the sample after standardizing the
meter with ion standards, an ionic strength adjuster (ISA) is added to
both the standards and the sample. Two to five standards are used to
standardize the meter. The standards should bracket the expected
value of the sample.
To Standardize the Meter
You must use a minimum of two standards to standardize the meter.
1. Touch
std
on the ion Measure screen to access the
standardization screen.
2. Touch
clear
to remove a previous standardization
3. Add ionic strength adjuster to your standard
4. Immerse the ion selective electrode and the appropriate
reference electrode (or combination ISE) into the standard
containing the lowest concentration of the ion of interest. Stir.
5. Touch
std
again to initiate the standardization process.
6. Use the numeric keypad to enter the value of the standard.
7. Touch
enter
on the keypad to accept this value. If you have
entered a value in error, touch
BS
to clear the value and key in a
new value.
OR
Touch
exit
to return to the Ion Measure screen without entering
a
standard value.
8. Repeat steps 3-7 with up to 5 standards. A minimum of two
standards is required to standardize the meter in this mode.
Generally, it is important that an ionic strength adjuster (ISA) is added
to both samples and standards to obtain accurate results.
If the meter has not been standardized with at least 2 standards, a
series of dashes will appear in place of a measurement value.
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Summary of Contents for CyberScan pH 5000
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