VEGA VEGAVIB 67 - NAMUR - Manual (Page 21)

case of very light-weight solids, you have to turn the
potentiometer to the complete left position (>0.008 g/cm³ or
>0.0003 lbs/in³). Hence the VEGAVIB 67 will be more
sensitive and can detect light-weight solids more reliably.
For instruments detecting solids in water, these values are not
applicable. The potentiometer is preset and must not be
changed.
The characteristics reversal can be carried out with the DIL
switch. You can choose between falling characteristics (switch
position max.) and rising characteristics (switch position min.).
You can have the requested current outputted.
Modes
l
min. - rising characteristic curve (High current when
immersed)
l
max. - falling characteristics (Low current when immersed)
The NAMUR output can be switched over to falling or rising
characteristics (see also "Function chart").
The simulation key is located in a recess on the upper side of
the oscillator. Push the simulation key with a suitable object
(screwdriver, pen, etc.).
When the key is pushed, line break between sensor and
processing unit is simulated. The signal lamp on the sensor
extinguishes. The measuring system must signal failure and
take on safe condition when the key is pushed.
Keep in mind that the connected instruments are activated
during operation. By doing this, you can check the correct
function of the measuring system.
Control lamp (LED) for indication of the switching condition
l
yellow = High current >= 2.2 mA
l
dark = Low current <=1 mA
l
yellow (flashing) = Failure <= 1 mA
6.3 Function chart
Level switch VEGAVIB 67
The following chart provides an overview of the switching
conditions depending on the adjusted mode and level.
Characteristics reversal (2)
Simulation key (3)
Signal lamp (6)
VEGAVIB 67 - with NAMUR output 21
Set up
31220
-EN
-060508