KROHNE SU 600 EN - Manual (Page 22)

Furthermore you have to distinguish between the relay
modes overfill and dry run protection. You switch over by
exchanging the ON/OFF values of the relay.
l
Overfill protection: Relay is switched off when the
max. level is exceeded (safe currentless condition),
relay is switched on again when the level falls below
the min. level (switch on point < switch off point).
l
Dry run protection: Relay is switched off when the
level falls below the min. level (safe currentless
condition), relay is switched on again when the max.
level is exceeded (switch on point > switch off point).
à
To adjust the on and off switching points of relay 1,
set the function switch to position [1] or [2], enter the
switching points for ON or OFF and save your
settings. If necessary, proceed in the same way with
relay 2 (position [3] or [4]).
2
1
3
off (on)
on (off)
o n
o n
o f f
o f f
t
L E D
1 Level
2 Mode overfill protection
3 Mode dry run protection
22 SU 600 - 4 … 20 mA signal conditioning
Setup with the integrated indicating and adjustment unit
30652
-EN
-050525