Hanna Instruments HI 98170 - Manual (Page 15)

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• With one-point calibration there is no “Condition” and only the
frame is shown. Calibration time out is active.
• Each time a buffer is confirmed, the new calibration parameters
replace the old calibration parameters of the corresponding buffer.
If current confirmed buffer has no correspondence in the existing
stored calibration and this is not full, the current buffer is added to
the existing stored calibration.
If the existing stored calibration is full (five
calibration points), and after confirming
the calibration point, the instrument will
ask which buffer will be replaced by current
buffer.
Press the ARROW keys to select another buffer to be replaced.
Press CFM to confirm the buffer that will be replaced.
Press CAL to leave replace mode. In this case, the buffer will not
be memorized.
Note: The replaced buffer is not removed from calibration list and it can be
selected for the next calibration points.
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” tag will be displayed
blinking on the LCD.
Press 2nd then SETUP if you want to adjust the buffer
value in accordance with current temperature. The
buffer value, displayed on the secondary LCD, will
start blinking.
Use the ARROW keys to change the buffer value.
After about 5 seconds you performed the last change, the buffer value is
updated. Press 2nd then SETUP if you want to change it again.
Notes: • Custom buffer value can be adjusted in a ±1.00 pH window,
around the set value.
• If you want to return to the set custom buffer value, simply press the
ARROW keys (UP then DOWN) to select again the custom buffer.
CLEAR CALIBRATION
Press 2nd then CLR in any moment during calibration.
The “CLr ALL” message will be displayed on the LCD
along with “OLD” tag.
All old calibrations, starting with current selected buffer are cleared and the
instrument continues calibration.
Note: If CLR is pressed during the first calibration point, the instrument
returns to measurement mode.
AutoEnd CLR