Hanna-instruments HI 4521 Manual de usuario descargar pdf (Pagina 41)

by pressing

. A pop-up menu will be displayed

on the LCD, in which the slope value can be set using

or . Press to save the

modified value or press

to return to the Ion

Constants menu.

Note: If an ISE calibration was performed and a different Ion

Selective Electrode is selected (standard or custom), a

warning message appears on the LCD informing the user to

perform a new calibration or to select the previous ISE in

order to perform accurate measurements.

Concentration Unit

Accessing this option, the user can select the desired concentration unit for the measured ion or chemical compound.

The available concentration units are: ppt (g/L), ppm (mg/L), ppb (µg/L), mg/mL, M (mol/L), mmol/L and %w/v.

To set the Concentration Unit:

• Use or to select the Concentration Unit

option.

• Press and use or to highlight the

desired option.

• Press to confirm your selection or press

cancel operation.

Sample ID – See

pH Setup

section.

Stability Criteria – See

pH Setup

section.

Log – See

pH Setup

section.

Note: The Logging Data Configuration option includes also the Ion Constants parameter. If you want it to appear

in the log reports, it must be enabled.

Alarm – See

pH Setup

section.

Note: The Alarm Limits (Low and High) are set in the selected concentration unit of the measured ion or chemical

compound and are displayed in a scientific format (value and value exponent).

Log

This option allows the user to edit the settings related to the logging feature, as following:

Logging Type

Three logging types are available:

Automatic

Manual

and

AutoHold.

Automatic logging

- the readings are logged automatically at constant

time intervals (see

Sampling Period

option).

Manual logging

( log on demand)- the readings are logged each time

is pressed.

AutoHold logging

- the readings are logged automatically at each

auto-hold event occured.

To set the sample logging type:

• Use or to highlight the

Logging Type

option.

• Press and use or to choose from

Automatic

Manual

Auto Hold

• Press to confirm your selection or press to

cancel operation.

Logging Data Configuration

This option allows the user to select the parameters that accompany

a logged value:

Date/Time, Calibration Data, Sample ID

Instrument

Operator ID

Company Name

Aditional Info 1

and

Aditional Info 2

To set the logging data configuration:

• Use or to highlight the

Logging Data

Configuration

option.

• Press and then use or to enable

the parameter by selecting

Yes

or to disable it by selecting

for

each option.

• Press

to return to the previous menu.

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Hanna-instruments HI 4521 Manual de usuario Pagina 41

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