VEGA VEGASWING 61 - two-wire - Manual (Page 18)

18
6 Setup
VEGASWING 61 • - two-wire
29227-EN-130409
Control lamp (LED) for indication of the switching condition
•
green = tuning fork uncovered
•
red = tuning fork covered
•
off = failure
With this DIL switch (2) 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 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.
Note:
Keep in mind that foams with a density > 0.45 g/cm³ (0.016 lbs/in³)
are detected by the sensor. This can cause faulty switchings particu-
lary when used as dry run protection system.
6.3 Function chart
The following chart provides an overview of the switching conditions
depending on the set mode and the level.
Sensor Signal conditioning in-
strument
Mode on
the signal
condi-
tioning
instrument
Level Signal
current -
Sensor
Signal
lamp -
sensor
Analogue
- input
control 1)
Signal
lamp -
signal
condi-
tioning
instrument
Mode A
Overflow
protection
approx.
8 mA
Green
> 3.8 mA
< 11.5 mA
Mode A
Overflow
protection
approx.
16 mA
Red
> 12.5 mA
< 21.6 mA
Mode B
Dry run
protection
approx.
16 mA
Red
> 12.5 mA
< 21.6 mA
Signal lamp (1)
Sensitivity adjustment (2)
1) Electronics directly evaluated via the analogue input of a control system
(without signal conditioning instrument)