6.8 LCD display
If a fault occurs, the identifier "Fault" appears as well an additional, explan‐
atory symbol.
6.9
LED indicators
The fault indicator lights up if the liquid level in the chemical feed container
falls below the second switching point of the level switch (
20 mm residual
filling level in the chemical feed container).
This LED flashes in the event of an undefined operating mode.
The warning indicator lights up if the fluid level in the chemical feed con‐
tainer falls below the first switching point of the level switch.
The operating indicator lights up if the pump is ready for operation and
there are no fault or warning alerts. It goes out quickly as soon as the
pump has performed a stroke. It starts to flash as soon as the stroke rate
falls below 30 strokes / min.
6.10 Hierarchy of operating modes, functions and fault statuses
The different operating modes, functions and fault statuses have a dif‐
ferent effect on if and how the pump reacts.
The following list shows the order:
1. - Priming
2. - Fault, Stop, Pause
3. - Auxiliary rate
4. - Manual, Analog, Contact, Batch
Comments:
re 1 - "Priming" can take place in any mode of the pump (providing it is
functioning).
re 2 - "Fault", "Stop" and "Pause" stop everything apart from "Priming".
re 3 - The stroke rate of "Auxiliary rate" always has priority over the
stroke rate specified by an operating mode or priority 4.
Fault indicator (red)
Warning indicator (yellow)
Operating indicator (green)
Functional description
23
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