HQ Series Portable Meters

pH Operation and Methods

6.4 Setting the pH Method

pH MAIN MENU

Current Method

Save Current Method As

Modify Current Method

Delete a Method

The pH Method menu is available via the

METER OPTIONS/PARAMETER METHODS

key when Access Control is off, or when a valid password is entered. A pH probe must be connected to the meter to edit pH methods. Method selection is not restricted.

Table 1

outlines the menu options for a pH Method. These options do not need to be changed if the default method is used. Modify

Current Method submenus and default settings are described in

section 6.5 on page 45

.

The HQ series meters contain a default method for pH with settings for measurement, calibration, check standards, and units. The default settings cannot be changed.

Use the Save Current Method As function to save the selected method with a new name. The meter settings for this new method can then be modified.

Note: To enter options that are different from the default settings, a new method must be created and then modified, as described in

section 6.5.1 on page 46 .

Table 1 pH Methods Menu Summary pH SUBMENU

Select Method

Enter New Method Name

Measurement Options

Set Calibration Options

Set Check Standards Options

Units

Select Method

6.5 Modify Current Method Menu for pH Summary

pH METHOD OPTION

Measurement Options

AVAILABLE SELECTIONS

Resolution

Measurement Limits

0.1 Fast

0.01 Fast

0.01 Medium

0.01 Slow

0.001 Slow

Lower Limit: 0.00–14.00 pH

Upper Limit 0.00–14.00 pH

Calibration Options

Buffer set

Calibration Reminder

Color Coded 4, 7, 10

IUPAC 1.679, 4.005, 7.000, 10.012

DIN 1.09, 4.65, 9.23

Reminder: On or Off

Repeat: 30 min, 2 h, 4 h, 8 h, 2 d, 5 d, 7 d

Expires: Immediately, Reminder +30 min, + 1 h, + 2 h, continue reading

DEFAULT SETTING

0.01 Medium

Lower: 0.00 pH

Upper: 14.00 pH

Color Coded 4, 7, 10

Reminder: Off

Repeat: 8h

Expires: +30 min

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