Hanna Instruments HI 4521 - Manual (Page 23)

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The pH Setup menu allows the user to set the parameters associated with pH measurement and calibration.
Accessing pH Setup
• Press while in Measure mode and then to
select pH range for the desired channel.
• Press and then to access pH Setup menu.
To access a pH Setup option:
• Use or to highlight the desired option.
• Press to access the selected option.
The following is a detailed description of the pH Setup option
screens.
p H p H p H p H p H S E T U P S E T U P S E T U P S E T U P S E T U P
Profile
Choosing this option the measuring and the calibration mode can be customized. Up to 10 profiles can be
defined by the user.
The available options are:
Save Current Profile: save the current profile.
Load Profile: load from available profiles.
Delete Profile: delete a profile.
Save Current Profile
To save the current profile:
• Use or to select the Profile option.
• Press and then select Save Current Profile option. The
Text Editor box will be displayed on the LCD.
• Enter the desired profile name by using and
to highlight the desired character and then press to add it to
the text bar. It is also possible to delete the last character by positioning
the cursor on the Backspace character ( ) and pressing
.
• Press to return to the Profile options.
94
The temperature user calibration menu can be accessed at the meter startup by pressing simultaniously three
keys as in the below drawing:
Note: The temperature user calibration is performed in three points: around 0°C, 50°C, 100°C.
To perform temperature user calibration:
• Select the desired temperature channel by pressing
(the temperature channel is switched between temperature EC
channel and temperature pH channel).
• Press to start the temperature calibration. Adjust the
temperature preset value using or when
necessary.
• Insert the probe in the beaker with water at 0°C.
• Wait to stabilize and then press to confirm the
calibration point.
• Repeat the previous three steps for 50°C and 100°C.
• Save the calibration.
• Press to return to measure mode.
Note: Press if you want to clear the temperature user calibration.
TEMPERATURE CALIBRATION TEMPERATURE CALIBRATION TEMPERATURE CALIBRATION TEMPERATURE CALIBRATION TEMPERATURE CALIBRATION