Type Of Dosage; Ofa" Over -Feed Protection - Zodiac O'Clair pH First Notice De Montage Et D'utilisation

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4.4.

Type of dosage

The default dosage on the pH First is acid (injection of pH minus).
Figure E.
To change it when in the " Program" menu, enable the option list by pressing
the " CAL / Enter " button (a small arrow appears on the right of the screen and
the type of dosage flashes). Then select the dosage using the " up " and
"down " navigation buttons.
Accept the choice by pressing the " CAL / Enter " button.
4.5.

"OFA" over -feed protection

Your pH First is equipped with protection to prevent over-feeding with
corrective solution in the event of a problem on the pH sensor, for example.
The purpose of this protection, called " OFA " (Over Feed Alarm), is to pause
the appliance if it has not reached the set point at the end of the time; set by
Figure
default at 240 minutes.
The "OFA " over- feed protection functions in 2 steps:
> #1: "OFA alarm " flashes on the LCD screen after 70 % of the OFA pro-
grammed time has been used without reaching the set point. However, the
appliance continues running.
> #2: " Stop OFA " is displayed on the LCD screen after reaching 100 % of
the OFA programmed time (240 minutes in the original setting). The
appliance is then safe.
• To cancel this protection and start your pH First, press the "CAL / Enter"
button (possible on the 2 steps of the OFA alarm).
Note: Make sure that the pH sensor is in good condition. If necessary, clean
and/ or recalibrate it.
• The over-feed protection is set by default for a maximum time of 240
minutes.
It is possible to adjust it from "OFF " (disabled) to " 240 " by intervals of
1 minute.
Note: A fairly high setting is strongly recommended to avoid any inoppor-
tune and/ or unjustified start.
• To regulate the OFA when in the " Program" menu, enable the option list by
pressing the " CAL / Enter " button (the value in minutes flashes). Then select
the value chosen using the " up " and "down " navigation buttons.
The adjustment is made by intervals of 1 minute.
Accept the choice by pressing the " CAL / Enter " button.
Special functions of the OFA
To prevent " false " alarms just after installing a pH First (if the pH is poorly
balanced), the OFA may be temporarily disabled for 24 or 48 hours:
> Press "up" & " down" & " CAL ": OFA disabled for 24 hours (automatically
re - enabled).
> Press "up" & " down" & " SET ": OFA disabled for 48 hours (automatically
re - enabled).
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