7
C. pH Calibration
a. pH Buffer sets Select
1. In the
“pH Measure Mode”, press and hold the “Scroll” key
for 5 seconds to enter
the “pH Buffer sets Select Mode”.
2. Press
“Store” key to select 7.00 (7.00/4.01/10.01) or press
“Scroll” key to select 6.86 (6.86/4.00/9.18) .
3. Press
“Mode” key to exit and return to “pH Measure Mode”.
SELECT pH BUFFER
MODE: EXIT
SCROLL: 6.86
STORE: 7.00
Note:
There is no need to repeat this procedure every time
unless one decides to change the buffer settings.
b. pH Calibration
1. Press “Mode” key to enter the “pH Measure Mode”.
2. Clean and dip meter into either pH 7.00 or 6.86 buffer
solution. Press
“Mode” key and hold for 2 seconds to enter
the
“pH Calibration Mode”. A ‘WAIT” icon will flash. The
pH/EC80 meter will perform end point sensing to determine
when the calibration reading is stable.
BUF:7
7.00
25.2
7.00
WAIT
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pH
3. When the
“WAIT” icon disappears, one point/first point
calibration is now complete. Press
“Mode” key to exit or to
wait 5 seconds for the meter to enter two points / second
point calibration.
4. Repeat Steps 2 and 3 for two points/second point
calibration by dipping the meter in pH 4.01/4.00 or
10.01/9.18 buffers.
