Hanna Instruments HI 98180 - Manual (Page 23)

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WORKING WITH CUSTOM BUFFERS
If at least one custom buffer was set in SETUP menu, it can be selected for
calibration by pressing the
ARROW keys. The Custom functional key will be
displayed.
Press Custom if you want to adjust the buffer value according with current
temperature.
Use the
ARROW keys to change the buffer value.
Press Accept to accept new value or ESC to exit changing mode.
Note: Custom buffer value can be adjusted in a ±1.00 pH window, around
the set value.
WORKING WITH MILI pH BUFFERS
If calibration is invoked from mili pH range, the calibration buffer can be
modified in a ±0.020 pH range in according with the label on the calibra-
tion buffer.
Press Change to enter buffer adjust mode.
Use ARROW keys to change the buffer value.
Press Accept to accept new value or ESC to exit adjusting mode.