The following table sums up the behaviour described:
P1
P2
Pump P1 = started for at least 4 seconds and tank <= DP
Maximum Alarm
P1 + P2 = OFF
P1 = ON
P2 = ON
Minimum Alarm
Operation with depth sensor, without display
STARTING
Tank level <= DP
Table 7: Operation with depth sensor, without display
ML
HA
HB
HC
LL
Figure 30: Filling with a depth sensor
E.box with display
ENGLISH
SP
DP
E.box without display
87
STOPPING
Tank level = SP
Tank level = SP
P1 + P2 = OFF
P1 + P2 = ON