Hach-Lange ISENH318103 User Manual - Manual (Page 9)

Option Description
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%).
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.
Table 2 Custom standard sets
Standard set values Option Description
Std1
Std2
Std3
Std4
Std5 1 mg/L Pre-set temperature compensated standard values.
10 mg/L
100 mg/L
1000 mg/L
Custom Custom standard value. Custom standard values are not temperature compensated.
No standard Standard is undefined when this option is selected.
Change check standard options
1. Make sure a probe is connected to the meter.
2. Push and select ISENH3181 Settings.
3. Select Modify Current Settings.
4. Select Check Standards Options and update the settings:
Option Description
Standard Sets the check standard—1, 10, 100 or 1000 mg/L.
The standard value is shown on the Check Standards Options screen.
Standard Units When Standard is set to Custom, sets the preferred unit for ISE check
standard—mg/L (default), µg/L, g/L, g/kg, mol/L, mmol/L, mol/kg, %, ppm or
ppb.
Standard Value When Standard is set to Custom, enter the standard value using the
up/down arrow keys.
5. Select Check Standard Reminder and update the settings:
Option Description
Reminder Sets the check standard reminder—On or Off (default).
The meter automatically shows the check standard screen if Reminder is On.
Allow Defer Allows the postponement of check standard reminders—Yes or No.
Measurement of the check standard can be delayed if Allow Defer is set to Yes.
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