Installation and operating manual
52
010-532_05
EN
[8]
[8a]
Bezeichnung Zenerbarriere
Alarm
Ein1
Aus
A = Beide Pumpen ausgeschaltet
B = Pumpe 1 einschalten
C = Pumpe 2 einschalten
D = Alarm
bl
3 4
bl
HAZ HAZ
bl bl
3 4
7 8
Aus
Ein1
Alarm
8
7
Ein2
Ein2
Zener barrier designation
Alarm
On1
Off
A = both pumps switched off
B = switch pump 1 on
C = switch pump 2 on
D = alarm
On2
Duo ATEX float switch
Connect the ends of the float switch’s leads to the terminal of the Zener barrier [8a].
On 2
On 1
Off