KROHNE OPTISWITCH 5100C Relay EN - Manual (Page 19)

Control lamp (LED) for indication of the switching condition
l
green = relay energized
l
red = relay deenergized
l
red (flashing) = failure
With the mode adjustment (A/B) you can change the switching
condition of the relay. You can set the required mode acc. to
the "Function chart" (A - max. detection or overfill protection, B
- min. detection or dry run protection).
With this DIL switch (3) you can set the switching point to
liquids having a density between 0.5 and 0.7 g/cm³ (0.018 and
0.025 lbs/in³). With the basic setting, liquids with a density of
>0.7 g/cm³ (>0.025 lbs/in³) can be detected. In liquids with
lower density, you must set the switch to >0.5 g/cm³
(>0.018 lbs/in³). The specifications for the position of the
switching point relate to water - density value 1.0 g/cm³
(0.036 lbs/in³). In products with a different density, the
switching point will shift in the direction of the housing or tuning
fork end depending on the density and type of installation.
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 A
Overfill protection
5 3 4
(8) (6) (7)
Relay energized Green
Mode A
Overfill protection
5 3 4
(8) (6) (7)
Relay deenergized red
Mode B
Dry run protection
5 3 4
(8) (6) (7)
Relay energized Green
Mode B
Dry run protection
5 3 4
(8) (6) (7)
Relay deenergized red
Signal lamp (1)
Mode adjustment (2)
Sensitivity adjustment (3)
OPTISWITCH 5100 C, 5150 C - with relay output 19
Set up
30426
-EN
-060831