Hanna Instruments HI6221 - Page 47

47
mEASurEmENT & ELECTrODE SETuP mENu
• Manual
When option is selected, the user manually selects the required buffer value from both Available
Standard and Custom lists.
First Calibration Point
Point and Offset are the two options available.
• With Point selected, a new buffer value can be added to an existing calibration. This prompts an
automatic reevaluation of the electrode slope.
• With Offset selected, the new buffer calibration point can create a constant offset to all existing pH
calibration data performed with a minimum of two pH buffers.
Calibration Reminder
This option allows the user to set:
• Daily-calibration interval (in hours and minutes)
• Periodic calibration interval (in days, hours, and minutes)
If a calibration is not performed within the calibration interval indicated, a “Calibrate probe” warning
message is triggered and runs along the bottom of the measurement screen.
Buffer Group
This option allows the user to select Buffers in Use for calibrating a pH electrode when using Automatic
calibration type.
Up to 5 buffers may be moved from Standard or Custom buffers in the Buffers in Use column. Select
buffer and forward arrow to move to Buffers in Use column.
To edit and add a custom buffer, from the Measurement screen:
1. Tap the Measurement Menu icon ( ) on the display.
2. Set pH Parameter.
3. Tap Calibration tab.
4. Tap Edit next to Buffer Group.