Hanna-instruments HI 4521 Manual de usuario descargar pdf (Pagina 35)

Confirmation is enabled, press to accept the modified option, to escape without saving

or to return to the editing mode. Otherwise, the modified option is saved automatically.

Isopotential Point

This option allows the user to edit the isopotential point of the electrode used for pH measurements. The isopotential point

is the mV reading for an electrode at which temperature has no effect on the measurement. The ideal electrode has an

isopotential point of 0.0 mV and 7.00 pH, while an actual electrode tipically deviates slightly from the ideal values.

If the actual isopotential pH for an electrode is known, it can be set by accessing this option. The isopotential pH

limits (low and high) will be displayed on the LCD.

Note: If the isopotential point has been modified, recalibration must be performed for the pH channel.

To set the Isopotential Point:

• Use or to select the

Isopotential Point

option.

• Press and set the desired isopotential pH value using

or .

• Press to save the current value or press

cancel operation.

pH Resolution

Accessing this option, the desired pH resolution can be set, with one (x.x), two (x.xx) or three (x.xxx) decimals.

To set the pH Resolution:

• Use or to select the

pH Resolution

option.

• Press and use or to highlight the

desired option.

• Press to confirm your selection or press

cancel operation.

TDS factor

With this option the user can set the TDS factor.

• Use or to highlight the TDS options.

• Press to confirm your selection and use or

to increase / decrease the value.

• Press to confirm your selection or press to

cancel operation.

Sample ID - see

Conductivity Setup

section.

Log - see

Conductivity Setup

section.

Alarm - see

Conductivity Setup

section.

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Hanna-instruments HI 4521 Manual de usuario Pagina 35

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