I Calibrati Ng The Sensor - Zodiac pH expert Instructions For Installation And Use Manual

3.3 I Calibrati ng the sensor

• For the appliance to operate accurately and reliably, the pH sensor must be calibrated regularly
(on installati on, on re-commissioning aft er wintering, and every 2 months when in use).
• Never wipe the sensor or touch its ti p!
• Rinse the ti p of the pH sensor with clean water using the supplied H
• Shake it to remove excess water.
3.3.1 Calibrati ng pH 7
• Immerse the sensor in the bott le of pH 7 buff er soluti on.
• Press and hold the
• Press , the progress bar is displayed:
• Aft er about 60 seconds the pH sensor reliability measurement is displayed.
• Depending on the message displayed, perform the corresponding operati ons:
Message
Acti on(s)
• turn off the appliance using the
0-1
• replace the buff er soluti on and/or the pH
sensor
• restart calibrati on
• Rinse the ti p of the pH sensor with clean water using the supplied H
• Shake it to remove excess water.
3.3.2 Calibrati ng pH 4
• Immerse the sensor in the bott le of pH 4 buff er soluti on.
• Press the butt on to display
• Press , the progress bar is displayed:
• Aft er about 30 seconds the pH sensor reliability measurement is displayed.
• Depending on the message displayed, perform the corresponding operati ons:
Message
Acti on(s)
• turn off the appliance using the
switch
• replace the buff er soluti on and/or the pH
sensor
• restart calibrati on
• Rinse the ti p of the pH sensor with clean water using the supplied H
• Shake it to remove excess water.
• Fit the sensor back onto its holder.
• The sensor measurement is more accurate if the calibrati on is performed at 2 points (pH7 and
pH4) rather than at a single point (pH7)
10
butt on for 5 seconds unti l
,
master switch
master
0-1
O bott le fi lled with tap water.
2
conti nue calibrati on
O bott le.
2
,
,
• press to complete calibrati on
O bott le.
2
is displayed, then