KROHNE OPTISWITCH 3000C Contactless EN - Manual (Page 18)

mode acc. to the "Function chart" (max. - max. detection or
overfill protection, min. - min. detection or dry run protection).
We recommend connecting acc. to the quiescent current
principle (contactless electronic switch is open when the
switching point is reached) because the contactless electronic
switch takes on the same (safe) condition if a failure is
detected.
Control lamp for indication of the switching condition.
l green = switch closed
l
red = switch open
l
red (flashing) = failure
6.3 Function chart
The following chart provides an overview of the switching
conditions depending on the adjusted mode and level.
Level Switching status Control lamp
Mode max.
Overfill protection
2 1
Switch closed Green
Mode max.
Overfill protection
2 1
Switch open red
Mode min.
Dry run protection
2 1
Switch closed Green
Mode min.
Dry run protection
2 1
Switch open red
Failure of the supply voltage
(min./max. mode)
any
2 1
Switch open
Signal lamp (4)
18 OPTISWITCH 3000 C - with contactless electronic switch
Set up
30058
-EN
-060830