P18
It is possible to select automatic or manual mode. In both cases, it is automatically calibrated to pH 7.
Automatic calibration:
The buffer solution value appears on the display. Enter the probe in the bottle and press the
key. A 60second countdown necessar y to complete calibration will appear on the display. If the
alignment quality is below 50%, an error message appears on the display and you should press
to exit calibration (the pump exits automatically after 4 seconds). If the quality is above 50%, the
value is shown on the display and, after pressing the key, the buffer solution at pH 4 or 9 will
be requested. At this point the procedure is the same as above.
Manual calibration:
when the buffer solution value appears on the display, insert the probe in the bottle and press the
key. A 60 second countdown necessar y to complete calibration will appear on the display. If
the alignment quality is below 50%, an error message appears on the display and you should press
to exit calibration (the pump exits automatically after 4 seconds). If the quality is above 50%,
the value is shown on the display and, after pressing the key, the value of pH 7.00 flashes on
the display. Use the keys to enter the value of the
solution in your possession, then press to confirm and start the calibration procedure as
before.
4.2.4
Potential Redox Calibration Menu (O.R.P.)
Pressing the CAL key for 3 seconds takes you into the calibration menu. If calibration was excluded
during programming, the following appears on the display:
If calibration is active:
CAL
Calibration
Automatic
enter
Calibration
Automatic
enter
Automatic Cal.
Buffer Sol. 7 pH
enter
Wait.... 60s
Buffer Sol. 7 pH
Quality 100%
ok 7 pH
Automatic Cal.
Error 4 pH
Automatic Cal.
Buffer Sol.4/9 pH
Automatic Cal.
Error 7 pH
Wait.... 60s
Buffer Sol. 4 pH
Quality 100%
ok 4 pH
enter
enter
enter
enter
Automatic Cal.
Automatic Cal.
C a l i b r a t i o n
M a n u a l
enter
enter
enter
enter
enter
enter
Manual Cal.
Buffer Sol. 7 pH
Wait.... 60s
Buffer Sol. 7 pH
Quality 100%
ok 7 pH
Automatic Cal.
Error 7 pH
Manual Cal.
Buffer Sol.7.00pH
Wait.... 60s
Buffer Sol.4.20pH
Quality 100%
ok 4.20pH
Calibration
Off