Hach-Lange ISEF12103 User Manual - Manual (Page 9)

4. Select Calibration Options and update the settings:
Option Description
Std Set Sets the temperature compensated standard sets that are used for
calibration—
• 0.5, 1 or 2 mg/L
• 1 or 10 mg/L
• 0.1, 1 or 10 mg/L
• 1, 10 or 100 mg/L
Standard set values are shown on the Calibration Options screen.
Custom standard sets are characterized at 25 °C (77 °F). Custom standard
values are not temperature compensated. Select the Custom buffer to
make a custom standard. Up to five standard values can be made .
Note: Only the minimum calibration points must be measured for Done to
be shown on the calibration screen.
Chemical Form Sets the chemical form.
Calibration
Units Sets the preferred unit for ISE Calibration—mg/L (default), µg/L (available
only for custom calibration set), g/L, g/kg, mol/L, mmol/L, mol/kg, %, ppm
or ppb.
Std Set Values When Std Set is set to Custom, sets the standard set values.
Up to five standard values can be made. Each standard value can include
a standard set value, Custom or No Standard.
Minimum Cal
Points Sets the minimum number of calibration points necessary before a
calibration can be completed—2 or 3.
Slope Limit Sets the slope limit—1 to 30% (acceptable slope criteria, default = 15%).
For factory-set methods, there are different slope limits: Pure water (slope
limit = 25%); Drinking water (slope limit = 15%); Default (slope limit =
15%).
The slope must fall within set limits for successful calibration.
5. Select Calibration Reminder and update the settings:
Option Description
Reminder
Repeat Meter will make an audible sound when a calibration is due and repeat the
sound at the selected interval—Off (default), 2 h, 4 h, 8 h, 2 d, 5 d or 7 d.
Expires Calibration expires after the selected time—Immediately, Reminder + 30 min
(default), Reminder + 1 h, Reminder + 2 h or Continue Reading.
Note: The meter cannot be used to read samples after calibration has
expired unless Continue Reading is selected.
6. If prompted, enter a name for the new method settings. Additional changes made to
the settings of an existing method are automatically saved with the same method
name.
7. Push EXIT until the meter returns to the measurement mode.
Change check standard options
1. Make sure a probe is connected to the meter.
2. Push and select ISEF121 Settings.
3. Select Modify Current Settings.
4. Select Check Standards Options and update the settings:
Option Description
Standard Sets the check standard—0.5, 1.0 (default), 2.0, 10.0 mg/L or Custom.
The standard value is shown on the Check Standards Options screen.
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