15 Calibration
3. Place the electrodes in 7.01 pH or 10.01 pH buffer solution.
Dislodge any bubbles that may adhere.
When the buffer is recognized “
REC
” is displayed. “
WAIT
” is displayed until the reading is stable
and the calibration is accepted.
7.01
R E C
7.01
W A I T
4. If 7.01 pH was used, press
w
key to save calibration point and exit calibration mode.
If 10.01 pH was used, the calibration point is automatically saved and the instrument returns to
measurement mode.
Two-Point Calibration
5. After 7.01 pH has been accepted, the ”10.01 pH
USE
”message is displayed.
10.01
U S E
6. Place the electrodes in second calibration buffer.
When the buffer is recognized “
REC
” is displayed. “
WAIT
” is displayed until the reading is stable
and the calibration is accepted.
10.01
R E C
10.01
W A I T
After the second calibration buffer has been accepted, the”
SAVE
” message is displayed and the instrument
returns to measurement mode.
The “CAL” tag is displayed in measurement mode.
S A V E
10.0
10.5
2 1.8
