Instructions pH FUN V1
Page 23 of 28
If the flow signal is missing, the pH FUN blocks the additional dosing of pH-Minus (or pH-Plus) to prevent a dosing
into standing measurement water.
Power-on delay
After switching on of the pH FUN, as well as after every interruption of the flow signal, a power-on delay of
5 minutes elapses before the pH FUN enables dosing again. This delay primarily serves for the stabilisation
of the pH measurement water.
Upper and lower threshold alarm
If the current pH measured value moves outside of the specified alarm limits (see 4.3.3 Setting options in the
menu), the pH FUN will report an upper or lower threshold alarm. In this case, you should check whether there is a
problem. The dosing in pH-reducing direction is NOT blocked by an upper threshold alarm, likewise the dosing in
pH-increasing direction is NOT blocked by a lower threshold alarm.
Level alarm
The suction lance of the pH FUN that is attached in the pH-Minus (or pH-Plus) canister, contains an empty sensor.
If the pH FUN receives and empty signal, it signals a level alarm.
The fill level of the canister in this case is no longer sufficient for an additional dosing; the dosing is blocked.
Replace the empty canister. The pH FUN subsequently resumes with the dosing.
Dosing alarm
If the current pH measured value deviates from the desired setpoint, the pH FUN will continually dose pH-Minus
(or pH-Plus) in order to compensate for the deviation. In this case an approaching of the pH measured value to the
setpoint is to be expected in the course of time.
The pH FUN checks at specified intervals (see also 4.3.3 Setting options in the menu) whether the expected
proximity to the setpoint has actually occurred. To do this, the pH FUN checks different criteria. If these proximity
criteria are fulfilled, the dosing is continued.
If the criteria are not fulfilled, the pH FUN reports a dosing alarm and blocks the additional dosing. In this case,
there is most likely a problem or the current settings for the pool are unsuitable. You can learn about the possible
problem causes and information on their remedy in Chapter 9 Possible problems and their remedy. The entire
system should be inspected for possible problems in the event of a dosing alarm.
The dosing alarm and the blocking of the dosing are ended when you manually confirm the dosing alarm by
pressing any button.
