ProfiLux 4 Programming Guide
EN 2017-02-06 64
define the time of the water change. Please don’t forget to program the selected timer
accordingly afterwards (set here switching period to Event start, see also Clock
->Timers). The water change is then started at the times set there.
Water change and ATO
Like Water change, additionally socket Fill water and level sensor 1 serve as ATO if
there is no water change running at that time.
Min/Max-control
Two sensors work together to control a water level. Sensor 1 works as a maximum-
switch, sensor 2 as aminimum-switch. As soon as sensor 2 registers a too low level,
the switchable socket with function Fill water is switched on. When the water level
reaches then sensor 1, the switchable socket is switched off again.
ATO 2 sensors
Like ATO, but 2 sensors are used to register the same level. Only if both sensors
register at the same time a too low level, the switchable socket with function Fill water
is activated. So this function offers an additional safety.
6.1.2 Maximum on-time
Due to safety reasons you can set how long the switchable sockets with the functions Fill
water and Drain water may be active at maximum. 8 hours can be set at maximum. Through
this, you can avoid that a defective sensor leads to a (too big) flooding. In case the time is
exceeded, the level control and the related switchable sockets are immediately deactivated
and an alarm is triggered! The level control remains deactivated as long as the error is reset
or the ProfiLux 4 is restarted. If here 0 is set as duration, then the time monitoring is
deactivated.
For a switchable socket which is assigned to a control with the function
Leakage detection there is no monitoring of the maximum switching time.
For an automatic water change this Maximum on-time is valid for both
sockets (drain and fill).
A restart of the ProfiLux 4 (also after a power-cut) resets the error and the
time monitoring will be restarted.
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