Instruction manual

Instruction Manual CyberScan PC5500/ 5000

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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 cam

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.

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.

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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.