9
“9.18
（
10.01
）
” icon will flash. The unit is ready to be sloped at
the second buffer.
[
Note:
If the first buffer solution is 7.00 or 6.86 pH, at this
moment, press the
“Mode”
key. The unit will exit the
calibration mode. Single point calibration is complete.
If the first buffer solution is 4.00, 4.01, 9.18 , 10.01 pH, at this
moment, the unit will automatically exit the calibration mode.
Single point calibration is complete.]
4. Repeat steps 4 to 5 of “
Calibration with an ATC/Temp probe
in the pH-AUTOLOCK mode”
for dual and three point
calibration.
5. The unit calculates and compensates for the pH electrode
slope deviation corresponding to the values of the two
calibration buffers. After calibration, press and hold
“Mea./Eff.”
key for 5 seconds to display the new electrode
efficiency and offset.
c. Calibration with an ATC/Temp probe in the pH NON-
AUTOLOCK mode.
1. Turn the unit on. Press
“Clear/Enter”
key for 5 seconds, all
LCD elements will lit up. The meter clears all calibration values
stored in internal memory.
2. Connect the pH electrode to the BNC connector and the
ATC/Temp probe to the ATC/Temp connector of the unit:
“ATC” icon will lit up. “pH” icon is on. The “buffer” icon will
flash.
3. Rinse the pH and ATC/Temp probes in distilled water and
immerse them in the first buffer solution (either 7.00 or 6.86
pH). Allow temperature reading to stabilize, then press and
hold
“Stand”
key for 2 seconds to calibrate. Once the unit
calibrates the first point, the “4.00
（
4.01
）
” and “9.18
（
10.01
）
”
icon will flash. The unit is ready to be sloped at the second
buffer.
[
Note:
If the first buffer solution is 7.00 or 6.86 pH, at this
moment, press the
“Mode”
key. The unit will exit the
calibration mode. Single point calibration is complete. If the
first buffer solution is 4.00, 4.01, 9.18 , 10.01 pH, at this
moment, the unit will automatically exit the calibration mode.
Single point calibration is complete.]
4. Rinse the pH and ATC/Temp probe in distilled water and
immerse them in the second buffer solution (either 4.00/4.01
