VEGA VEGACAL 65 For connection to a signal conditioning instrument - Manual (Page 20)

20
6 Setup with a signal conditioning instrument
VEGACAL 65 • For connection to a signal conditioning instrument
30320-EN-130917
6.3 Continuous level measurement
Continuous measurement requires a constant dielectric value, i.e. the
measured product should have constant properties.
Select the stage with the measuring range selection switch on the
electronics module of the probe according to the following chart.
Look in the row that corresponds to your product and select an ap-
propriate range according to the length of your probe.
The listed lengths do not completely correspond to those of the
actually available measuring probes. If the product has a dielectric
constant that lies between the values stated in the chart, the max.
permissible probe length for each range must be calculated accord-
ingly. For longer lengths or if there is no information available in the
chart, select range 3. If you are not sure, always set the measuring
range selection switch to the next higher stage.
VEGACAL 65
non-conductive and dielectric con-
stant = 2
0 - 6 m = range 1 / 6 - 30 m = range 2
non-conductive and dielectric con-
stant = 10
0 - 1 m = range 1 / 1 - 5 m = range 2
conductive or dielectric constant > 50 -
Tab. 1: Range setting
Tip:
For min. adjustment the vessel should be as empty as possible, and
for max. adjustment, as full as possible. If the vessel is already full,
start with max. adjustment.
1. Set range changeover switch on the capacitive probe according
to the above chart
2. Carry out the adjustment on the signal conditioning instrument
(see operating instructions manual of the signal conditioning
instrument: "Adjustment with medium")
If error E014 is outputted on the signal conditioning instrument, you
will find information in the operating instructions manual of the signal
conditioning instrument under„Error codes“. If the sensor and supply
cable are working properly, it may be that an incorrect range has been
set for the capacitive probe. Set the measuring range selection switch
to the next higher stage.
If error E017 is outputted on the signal conditioning instrument, set
the measuring range selection switch on the probe one step lower.
1. Set range changeover switch on the capacitive probe according
to the above chart
2. Carry out the adjustment on the signal conditioning instrument
(see operating instructions manual of the signal conditioning
instrument: "Adjustment with medium")
When connecting to an analogue input card of a PLC, take note
of the operating instructions manual of the input card. The vessel
must be as empty as possible for empty adjustment and as full as
possible for full adjustment.
General information
VEGAMET series 500
signal conditioning
instrument
VEGAMET series 600
signal conditioning
instrument
Analogue input card of
a PLC