VEGA CAP82-98 User Manual
Operating Instructions
VEGACAP
Level and Pressure
Safety information
Safety information
Please read this manual carefully, and also take
note of country-specific installation standards
(e.g. the VDE regulations in Germany) as well
as prevailing safety regulations and accident
prevention rules.
For safety and warranty reasons, any internal
work on the instruments, apart from that involved in normal installation and electrical connection, must be carried out only by qualified
VEGA personnel.
2 VEGACAP
Note Ex area
Please note the approval documents (yellow
binder), and especially the included safety
data sheet.
Contents
Contents
Safety information ........................................................................ 2
Note Ex area ................................................................................ 2
1 Product description
1.1 Function and configuration .................................................. 4
1.2 Types and versions ............................................................. 6
1.3 Technical data ....................................................................... 7
1.4 Dimensions ......................................................................... 10
1.5 Product temperature and operating pressure ............... 14
1.6 Approvals ........................................................................... 16
2 Mounting
2.1 Mounting instructions ......................................................... 17
3 Electrical connection
3.1 Connection instructions ..................................................... 21
3.2 Connection plan ................................................................. 21
4 Setup
4.1 Adjustment elements ......................................................... 24
4.2 Switching point adjustment ............................................... 25
4.3 Functions chart ................................................................... 29
5 Diagnostics
5.1 Simulation ............................................................................ 30
5.2 Maintenance ....................................................................... 30
5.3 Repair .................................................................................. 30
5.4 Exchange of electronics .................................................... 31
5.5 Shortening of the electrodes ............................................. 31
5.6 Failure rectification ............................................................. 33
VEGACAP 3
1 Product description
Product description
1.1 Function and configuration
The compact capacitive level switches VEGACAP detect the level of virtually any medium regardless of whether in liquid, powder,
paste or granule form. This applies also to
adhesive products.
Depending on the chosen adjustment,
VEGACAP can detect if the medium exceeds
or fails to reach a defined level.
Sensor, processing electronics and power
supply form one unit in VEGACAP. The
modular construction ensures adaption to
virtually any application. Beside rod, cable,
high temperature and plate electrodes, there
are also three electronics versions available
(non-contact switch, relay or transistor output
NPN/PNP).
VEGACAP 27, 35 and 98 combine all these
positive features with the advantage that an
adjustment with medium is no longer necessary. This is made possible by the oscillator
CAP E31 R and the patented mechanical
configuration of the electrode.
Application
The area of application for VEGACAP is
mainly in the detection of max. and min. levels
in vessels. A switching command can be
triggered either when the electrode is immersed or exposed. VEGACAP can be
mounted laterally, from the top or from the
bottom.
Measuring principle
Electrode, medium and vessel wall form an
electrical capacitor.
The capacitance of the capacitor is generally
influenced by three factors:
- distance of the electrode plates (a)
- size of the electrode plates (b)
- type of dielectric between the electrodes
(c)
a
b
c
The electrode and the vessel wall are the
capacitor plates. The medium is the dielectric. Due to the higher dielectric constant (DKvalue) of the medium compared with air, the
capacitance of the capacitor increases as the
electrode is gradually immersed.
Partly insulated
The electrode is insulated over a defined
length. The measurement is made only in the
uninsulated zone.
Fully insulated
The electrode is insulated along the entire
The capacitance change is converted by the
oscillator into a switching command.
length; on cable electrodes also the gravity
weight can be fully insulated.
4 VEGACAP
Product description
Buildup resistant
(VEGACAP 26, 27, 35 and 98)
The special mechanical construction compensates conductive buildup. Leakage currents caused by build-up are drained off via
the screen segment.
Even strong condensation or buildup do not
influence the switching condition of VEGACAP.
The compensation of buildup is supported
by the patented processing technology
(phase selective admittance processing) in
the oscillator CAP E31 R.
VEGACAP 35 can be shortened locally to the
requested length. Planning and stocking is
thereby facilitated.
Adjustment-free
(VEGACAP 27, 35 and 98)
Set-up is very easy because the switching
point must no longer be adjusted.
Adjustment-free means that changing mediums with different dielectric constant figures
(er), e.g. water and oil or conductive and nonconductive mediums, do not influence the
adjustments on VEGACAP and the switching
accuracy.
With horizontally installed electrodes, the
installation position is also the position of the
switching point.
Note
Check for correct functioning of the sensor.
When filling for the first time, make sure that
VEGACAP responds and switches correctly
so that in case of failure, the filling or emptying process can be manually stopped.
With vertical installation, the switching point is
only determined by the length of the electrode.
All products with a dielectric constant ³ 1.5
can be detected. With a DK value < 2 a fresh
adjustment must be carried out on VEGACAP
27 and 98.
VEGACAP 5
Product description
1.2 Types and versions
Type survey
VEGACAP 111)21 26 27 311)33 34 35 42 52 53 60 61 821)84 92 97 98
Series
Rod electrode • • • • • • •
Cable electrode • • ••••• •
Plate electrode ••
Pipe clamp electr. •
Version
Partly insulated • • • • • • • •
Fully insulated • • • • • • • • •
Thread
NPT 11/2" • • • • • • •••••
G 11/2 A • • • • • • ••••••• •
Electrode
material
Steel • • • • • • ••••••• •
StSt • • • • • • • • • • •
Insulating
material
PTFE • • • • • • • • • •
PP • • • •
PE/PA 12 • • •
PFA • • •
PE •
Ceramic • •
Temperature
adapter
Steel • • • • • • •
StSt • • • • • • •
PA •• •• •• • •
Others
Test switch • • • • • • ••••• • • • •
Adhesive prod. • • • • •
Adjustment-free • • •
High temp. version • •
1)
VEGACAP 11 R ExS, 31 R ExS and 82 R ExS with integrated oscillator E30 R ExS are approved for StEx
applications.
6 VEGACAP
Product description
1.3 Technical data
General
Housing
Housing material plastic PBT (Polyester)
Protection class plastic IP 66 (StEx IP 65)
Cable entry 1 x Pg 13.5
Terminals for max. 1.5 mm2 wire cross-section
Thread
Material
- VEGACAP all except VEGACAP 97, 98 steel (St 37), 1.4571 (stst), Aluminium
- VEGACAP 97, 98 PP
Thread G 11/2 A or NPT 11/2“
Rod electrode (VEGACAP 11, 21, 26, 27, 60, 97, 98)
Rod material
- VEGACAP 11, 21, 26, 27, 60 steel (St 37) or 1.4571 (StSt)
- VEGACAP 97, 98 PP (insulation)
Length
- VEGACAP 11, 21, 26, 27 max. 4 m
- VEGACAP 97, 98 max. 1.5 m
VEGACAP 27, 35, 98 also Aluminium
Aluminium IP 66/67
(with oscillator R = 2 x Pg 13.5)
also flange or hygienic versions
Cable electrode (VEGACAP 31, 33, 34, 35, 42, 52, 53, 61)
Cable material
- VEGACAP 31, 33, 42, 61 steel (St 37) or 1.4571 (stst)
- VEGACAP 34, 35, 52, 53 steel (St 37)
Length max. 25 m (VEGACAP 35 max. 20 m)
Weight
Basic weight
- VEGACAP 11, 21, 26, 27 approx. 1.2 kg
- 31, 33, 34, 35, 42, 52, 53, 60, 61 approx. 3.3 kg
- VEGACAP 82, 84, 92 approx. 2.1 kg
- VEGACAP 97, 98 approx. 0.6 kg
Rod weight approx. 1.4 kg/m
Cable weight
- all except VEGACAP 42 approx. 0.3 kg/m
- VEGACAP 42 approx. 0.1 kg/m
Ambient conditions
Ambient temperature on the housing -40°C … +70°C
- StEx version -20°C … +60°C
Storage and transport temperature -40°C … +80°C
Medium temperature and operating see "1.5 Medium temperature and operating
pressure pressure“
Dielectric constant er medium ³ 1.5
VEGACAP 7
Product description
Function
Modes A/B mode
Integration time approx. 0.5 sec
Signal lamp LED for indication of the switching mode
Test switch (option) switching point simulation
CE conformity
VEGACAP compact level switches meet the protective regulations of EMC (89/336/EWG)
and NSR (73/23/EWG). The conformity has been judged acc. to the following standards:
EMC Emission EN 50 081 - 1: 1992
Susceptibility EN 50 082 - 1: 1992
NSR EN 61 010 - 1: 1993
CE conformity (VEGACAP 27, 35, 98)
VEGACAP 27, 35 and 98 compact level switches meet the protective regulations of EMC
(89/336/EWG) and NSR (73/23/EWG). The conformity has been judged acc. to the following
standards:
EMC Emission EN 50 081 - 1: 1992
Susceptibility EN 50 082 - 2: 1995
NSR EN 61 010 - 1: 1993
A - max. detection or overfill protection
B - min. detection or dry run protection
(not VEGACAP 27, 35, 98)
Oscillators
General (CAP E30 R, C, T)
Frequency 400 kHz
Capacitance range
- range 1 0 … 20 pF sensitive
- range 2 0 … 85 pF …
- range 3 0 … 450 pF insensitive
Switching hysteresis approx. 2 % relating to the adjusted
Terminals max. 1.5 mm2 wire cross-section
capacitance value
C - Non-contact switch (CAP E30 C)
Supply voltage 20 … 250 V AC, 50/60 Hz
Output non-contact switch
Domestic current requirement < 5 mA (via the load circuit)
Load current min. 10 mA, max. 400 mA (4 A for 40 ms)
Protection class I
Overvoltage category III
8 VEGACAP
20 … 250 V DC
for reliable switching off of contactors with very
low holding current, the domestic current is
briefly lowered below 1 mA.
at a load current of more than 300 mA the
max. permissible ambient temperature is 60°C.
Product description
R - Relay output (CAP E30 R)
Supply voltage 20 … 250 V AC, 50/60 Hz
20 … 72 V DC
Power consumption 1 … 9 VA, max. 1.5 W
Output relay output (SPDT)
Relay data
- potential separation min. 500 V DC
- contact floating spdt
- contact material AgNi, Au plated
- turn-on voltage min. 10 mV
max. 250 V AC, 250 V DC
- switching current min. 10 µA
max. 3 A AC, 1 A DC
- breaking capacity max. 500 VA, 54 W
Protection class I
Overvoltage category III
T - Transistor output (CAP E30 T)
Supply voltage 10 … 55 V DC
Power consumption max. 0.5 W
Output floating transistor output
NPN/PNP, individually selectable through differ
ent terminal assignments
Load current max. 400 mA (the output is overload resistant
and permanently shortcircuit proof))
Blocking current max. 10 µA
Voltage loss max. 1 V (if output conductive)
Protection class II
Overvoltage category III
R - Relay output (CAP E31 R)
Supply voltage 20 … 250 V AC, 50/60 Hz
20 … 72 V DC
Power consumption 1 … 9 VA, max. 1.5 W
Output relay output (DPDT)
Relay data
- potential separation min. 500 V DC
- contact 2 floating spdt
- contact material AgNi, Au plated
- turn-on voltage min. 10 mV
max. 250 V AC, 250 V DC
- switching current min. 10 µA
max. 5 A AC, 1 A DC
- breaking capacity max. 750 VA, 54 W
Protection class I
Overvoltage category III
Note:
The oscillator is independent of the electrode and can be replaced locally. Set the changeover
switch of the new oscillator to the same position and repeat the switching point adjustment
(CAP E30 R, C, T). For CAP E31 R a fresh adjustment is also necessary.
VEGACAP 9
Product description
Survey
VEGACAP 11 21 26 27 31 33 34 35 42 52 53 60 61 82 84 92 97 98 11 31 82
Non-contact
switch
CAP E30 C ••• ••• •••••••••
Floating
relay output
CAP E30 R,
E30 R ExS ••• ••• ••••••••• • • •
Floating
relay output
CAP E31 R •• •
Floating
transistor
output
CAP E30 T ••• ••• •••••••••
StEx StEx StEx
1.4 Dimensions
VEGACAP 11 (partly insulated)
80 x 110
~30
111
20
35
L1
L (max. 4000 mm)
Isolation length L1:
(VEGACAP 11 and VEGACAP 31)
PP: 100 mm
PTFE: 50 mm
StEx: max. 100 mm
Pg 13,5
SW 60
G 1½ A
Ø 20
Ø 15
VEGACAP 21 (fully insulated)
80 x 110A~30
111
20
35
L (max. 4000 mm)
Isolation A
PE 2.0 mm 20 mm
PTFE 2.0 mm 20 mm
PTFE 3.2 mm 16 mm
PFA 2.0 mm 20 mm
Pg 13,5
SW 60
G 1½ A
Outer-ø
VEGACAP 26 (fully insulated, for adhesive products)
LA = active length (standard
100 mm)
80 x 110 ~30
111
20
35
L (min.300, max. 4000 mm)
SW 60
G 1½ A
Ø 20
LA
Pg 13,5
10 VEGACAP
Product description
VEGACAP 27 (fully insulated, for adhesive products, adjustment-free)
85
~76
90
20
20
35
L
Ø 20
M20x1,5
PA connection
SW 60
G 1½ A
LA
VEGACAP 34 (partly insulated)
80 x 110 ~30
VEGACAP 31 (partly insulated)
80 x 110 ~30
111
20
35
L1
L (max. 25.000 mm)
200
Ø 40
Pg 13,5
SW 60
G 1½ A
Ø 20
Ø 8
VEGACAP 35 (partly insulated, for adhesive products, adjustment-free)
85
~76
VEGACAP 33 (partly insulated)
80 x 110 ~30
111
20
35
L1
L (max. 25.000 mm)
200
Ø 40
Pg 13,5
SW 60
G 1½ A
Ø 15,5
Ø 8
VEGACAP 42 (fully insulated)
~30
80 x 110
111
20
35
L (max. 25.000 mm)
200
Ø 40
G 1½ A
Ø 11
Ø 6
SW 60
Pg 13,5
90
20
20
35
Ø 13,5
L
Ø 6
200
Ø 40
SW 60
G 1½ A
M20x1,5
PA
connection
111
20
35
100
∅3
L
200
∅40
Gravity weight
∅5
SW 60
PG 13.5
∅3
120
∅20
36
∅40
Fixing weight
VEGACAP 11
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