VEGA SWING83AEXD User Manual

Operating Instructions

VEGASWING 81A EXD, 83A EXD

Level and Pressure

Contents

Safety information ........................................................................ 2

Note Ex-area ................................................................................ 2

1 Product description

1.1 Function and configuration .................................................. 3

1.2 Approvals ............................................................................. 4

1.3 Technical data ....................................................................... 6

1.4 Dimensions ......................................................................... 10

1.5 Type plate ........................................................................... 14

2 Mounting

2.1 VEGASWING ...................................................................... 15

3 Electrical connection .............................................................. 18

4 Set-up

4.1 Functional table .................................................................. 23

Contents

5 Diagnosis

5.1 Recurring test acc. to WHG .............................................. 24

5.2 Exchange of electronics .................................................... 25

5.3 Failure removal ................................................................... 26

Safety information

The described module must only be installed
and operated as described in these operating
instructions. Please note that other action can
cause damage for which VEGA does not take
responsibility.

2 VEGASWING 81A EXD and 83A EXD

Note Ex-area

Please note the approval documents attached
(yellow binder), and especially the included
safety data sheet.

Product description

1 Product description

1.1 Function and configuration

VEGASWING series 80 A vibrating level
switches detect levels of liquids with a vis­cosity of 0,2 mPa s up to 10.000 mPa s and a
density ³ 0,5 g/cm3. Their modular configura­tion allows the use in vessels, tanks and
pipelines. Typical applications ar e overfill and
dry run protections.

Due to the simple and rugged measuring
system, VEGASWING can be used virtually
in any liquid independent of the chemical and
physical characteristics. It works also under
arduous conditions such as turbulences, air
bubbles, foam generation or varying meas­ured product and is insensitive to external
vibrations.

With the mechanical connection thread,
conus, bolting and flange, the versions are
also suitable for level detection of liquids in
the food pr ocessing industr y. For these ap­plications the tuning fork and the extension
tube are polished.

For the use in very aggressive products,
Hastelloy C4 and coatings ECTFE (Halar)
and enamel are used for VEGASWING 81 A
and 83 A.

VEGASWING 83A with flange can be coated
with enamel up to 1200 mm and ECTFE (Ha­lar) up to 1,6 m tube length.

For product temperatures of more than
100°C up to 150°C, VEGASWING 81 A and
83 A can be equipped with a temperature
adapter.

Function

The tuning fork is piezoelectrically energised
and vibrates at a resonance frequency of
approx. 400 Hz. If the tuning fork is covered
by the product, the resonance frequency
changes. This frequency change is detected
by the integral oscillator and converted into a
switching command. With a mode switch the
switching condition can be determined (over ­fill or dry run protection).

The oscillator of VEGASWING monitors con­tinuously the instrument. The following criteria
are checked:

- corrosion or damage of the tuning fork

- vibration failure

- line break to the piezo actuation

- too low vibrating frequency

- corrosive medium penetrated into the sen­sor from the vessel side.

With a connected signal conditioning instru­ment (oscillator SWING E82 Z) in addition
more functions can be monitored. With oscil­lator SWING E82 Z and appropriate signal
conditioning instrument, the function of the
complete measuring chain can be monitored
by key pressing. This is valid according to
the general type approval acc. to WHG as
recurring test. More information with the ap­propriate signal conditioning instrument.

If one of the stated failures is determined or in
case of voltage loss, the electronics takes a
defined switching condition, i.e. dependent
on the electronics version

- the non-contact switch opens

- the relay deenergizes

- the output transistor blocks.

- a fault signal is triggered.

With the two-wire output version, the failure is
signalled via a defined current to the con­nected VEGATOR signal conditioning instru­ment.

VEGASWING 81A EXD and 83A EXD 3

Product description

Recurring test acc. to WHG

According to the type approval to WHG
(Z-65.11-154) the recurring test acc. to WHG
can be carried out by pushing the test key
on the VEGA TOR 536 EX, 537 EX, 636 EX
signal conditioning instrument. The sensor
must neither be removed, nor should re­spond by filling of the vessel. This is valid for
VEGASWING 81A EXD and 83A EXD with
two-wire oscillator SWING E82 Z (EX).

VEGASWING 81A EXD and 83A EXD meet in
mode A (overfill protection) the fail-safe re­quirements to class 3 to class 3 (AK 1 … 3)
acc. to DIN 19 251.

Configuration

A measuring system consists of:

- a VEGASWING with oscillator
SWING E82 C, SWING E82 R or
SWING E82 T

- external instruments, switched by VEGA­SWING

or

- a VEGASWING with oscillator
SWING E82 Z(EX)

- VEGATOR 536 EX, 537 EX or 636 EX signal
conditioning instrument or to an already
mounted instrument, e.g. VEGA TOR
425 EX, 534 EX, 825 EX

- external instruments switched by VEGA­TOR.

Housing

Pressure-tight encapsulation (d)

DIN EN 50 018/VDE 0170/0171 part 5.
With a pressure-tight encapsulation the parts
which can ignite an explosive atmosphere
are located in a housing, withstanding the
pressure caused by an explosion of an ex­plosive mixture inside and avoiding that the
explosion is spread to the explosive atmos­phere around the housing.

VEGASWING with EXD-housing has a pres­sure-tight encapsulated space for the oscilla­tor as well as a pressure-tight encapsulated
separate terminal box. The oscillator box is
connected via a climatically tight cable entry
with the separate terminal box. The lines for
the supply voltage and switching signals
lead via a pressure-tight encapsulated cable
entry to the terminal box of the VEGASWING­housing. This has the advantage, that the
wiring should not be made intrinsically safe
(ia), but in increased safety and loop with a
voltage up to 250 V to the sensor. With the
signal line it is possible to control without a
signal conditioning instrument directly a DCS
or connected signallers.

Exclusively use approved cable entries for
EExd.

1.2 Approvals

Explosion protection

In hazardous areas caused by combustible
gases, vapours or fog, only certified VEGAS­WING 81A EXD, 83A EXD vibrating level
switches. VEGASWING 81A EXD, 83A EXD
are suitable for the use in hazardous areas of
zone 1.
The EC-type approval issued by the ap­proval authority is attached to the instruments
as proof for the explosion protection. When
VEGASWING 81A EXD, 83A EXD vibrating
level switches are mounted and operated in
hazardous areas, the Ex-mounting regula­tions should be noted. The information and
conditions of the supplied certificates (EC­type approval, conformity certificate) of
VEGASWING 81A EXD, 83A EXD have to be
noted.

4 VEGASWING 81A EXD and 83A EXD

Product description

• The mounting of Ex-systems must be gen­erally made by skilled staff.

• VEGASWING 81A EXD, 83A EXD with
enamelled tuning fork or plastic parts ac­quiring static electricity (ECTFE-coated
tuning fork) have a warning label stating
measures which should be taken to avoid
dangers due to electrostatic discharges.
The contents of the warning label should
be noted.

• The explosion protection of the used elec­trical equipment is only ensured when the
limit temperatures stated in the certificate
are not exceeded.

• In case of dangers due to oscillation and
vibrations, the appropriate parts of
VEGASWING 83A EXD should be secured
effectively against these dangers.

Overfill protection acc. to WHG

Level detection with fault monitoring

Instrument Oscillator Level switch Test certificate no.

VEGASWING SWING E82 Z 536 EX, applied
81A EXD, 83A EXD 537 EX,
(Z) 636 EX

Overfill protection

The information and conditions of the sup­plied general type approvals must be noted
when a VEGASWING is used as part of an
overfill protection for vessels storing water
endangering liquids. The general type ap­proval should be available at the installation
place.
VEGASWING should be only used in such
liquids, against the materials of the wetted
parts of VEGASWING are sufficiently chemi­cally resistant.

DruckbehV

In a test acc. to TRB 801 no. 45 VEGASWING
was tested on the suitability for the use in
pressurized vessels (DruckbehV). The pres­sure and temperature information to certified
instruments are stated under "1.3 T echnical
data“.

VEGATOR

VEGASWING SWING E82 C compact instrument applied
81A EXD and SWING E82 R
83A EXD (C, R, T) SWING E82 T

Level measuring instruments for the use in hazardous areas

Level detection with fault monitoring

Instrument Oscillator Type approval

VEGASWING SWING E82 Z applied
81A EXD, 83A EXD
(Z)

VEGASWING SWING E82 C applied
81A EXD and SWING E82 R
83A EXD (C, R, T) SWING E82 T

VEGATOR 425 (EX), 534 (EX) and 825 (EX) signal conditioning instruments can be also used.

VEGASWING 81A EXD and 83A EXD 5

certificate

Product description

1.3 Technical data

VEGASWING 81A EXD and 83A EXD

Housing

Housing material Aluminium (plastic coated)
Protection IP 66 and IP 67 (meets both protections)
Cable entry
Terminals max. 1 x 1,5 mm2 cross-section area of

Mechanical connection

Thread G 1 A or 1“ NPT

- material 1.4571 (stst) or Hastelloy C4
Flanges DIN and ANSI from DN 32

- material 1.4571, 1.4571 with Hastelloy C4 plated

Hygienic fittings
Material 1.4571 (stst)

- conus DN 25

- bolting DN 40, DN 50

- TRI-Clamp 11/2“, 2“

- Tuchenhagen Varivent DN 50 PN 10

- hyg. connection with compression nut F40 PN 25, 14571, 14581

- hyg. connection with tension flange DN 32 PN 25, 1.4571, 1.4581

Tuning fork

Material 1.4581, Hastelloy C4, Hastelloy C4 enamelled

1

/2“ NPT EExd

conductor

DN 50 PN 40 enamelled steel
or 1.4571 ECTFE-coated

1.4581, with ECTFE coated

Extension tube (VEGASWING 83A EXD)

Material 1.4571, Hastelloy C4, Hastelloy C4 enamelled

1.4571 with ECTFE coated

Length

- 1.4571, Hastelloy C4 180 mm … 4000 mm

- Hastelloy C4 enamelled 180 mm … 1200 mm

- 1.4571, ECTFE (Halar) 180 mm … 1600 mm

Weight

Basic weight approx. 2,5 kg
Tube extension approx. 0,11 kg/m

6 VEGASWING 81A EXD and 83A EXD

Product description

Ambient conditions

1)

Ambient temperature on housing -40°C … +70°C
Storage and transport temperature -40°C … +70°C
Product temperature -40°C … +100°C
Product temperature with temperature
adapter of 1.4571 (option) -40°C … +150°C

Permissible ambient temperature

'

'

'

Operating pressure

 '



 

1)



Operating pressure -1 bar … 40 bar

(with locking ARV2EX0.C…
up to 25 bar , other locking s u npressurised)
For flange versions note nominal pressure of
the flange.

Medium

Viscosity

- dynamic 0,2 … 10.000 mPa s (or cP)

- cineatic 0,2 … 10.000 mm2/s (or cSt) relating to
density 1,0 g/cm

Density 0,5 … 2,5 g/cm

3

3

0,5 … 0,7 g/cm3 must be readjusted
(factory setting 1,0)

Product tem­perature with
temperature
adapter

Function

Mode A/B-mode in oscillator or definition via the signal

conditioning instrument (SWING E82 Z)
A: max. detection, overfill protection
B: min. dete ction, dry run protection

Integration time approx. 0,5 s
Meas. frequency approx. 400 Hz
Hysteresis approx. 4 mm with vertical mounting

CE-conformity

VEGASWING 81A EXD and 83A EXD vibrating level switches meet the protective regula­tions of EMVG (89/336/EWG) and NSR (73/23/EWG). The conformity has been judged acc.
to the following standards:
EMVG Emission EN 50 081 -1: 1992

Susceptibility EN 50 082 -2: 1995

NSR EN 61 010 -1: 1993

1)

Note the information in the conformity certificate or the EC-type approval certificate.

VEGASWING 81A EXD and 83A EXD 7

Product description

Approvals VEGASWING 80A EXD

WHG

Approval as overfill protection acc. to WHG applied

Recurring test acc. to WHG

According to the type approval to WHG (Z-65.11-154 applied), the recurring test acc. to
WHG can be carried out by pushing the test key on the VEGA TOR 536 EX, 537 EX, 636 EX
signal conditioning instrument. The sensor must be neither removed, nor response must be
triggered by filling the vessel- This is valid for VEGASWING 81A EXD and 83A EXD with
two-wire oscillator SWING E82 Z EX.

Explosion protection VEGASWING 81A EXD, 83A EXD

Certificate EC-type approval acc. to A TEX 100 a
Classification ATEX II 2G EEx d IIC T6
Permissible application area Ex Zone 1
Ambient temperature dependent on
temperature class and Ex-Zone: see EC-type approval certificate
Electrical safety relevant
characteristics: see EC-type approval certificate

Oscillator

C - Non-contact switch (SWING E82 C)

Supply voltage 20 … 250 V AC, 50/60 Hz or 20 … 250 V DC
Output non-contact switch
Current consumption approx. 3 mA (via load circuit)
Load current min. 10 mA

Protection class I
Overvoltage category III
Modes A: max. detection, overfill protection

max. 400 mA (at I > 300 mA the ambient
temperature can be max. 60°C)
max. 4 A up to 40 ms (not WHG specified)

B: min. detection, dry run protection

8 VEGASWING 81A EXD and 83A EXD

Product description

R - Relay output (SWING E82 R)

Supply voltage 20 … 250 V AC, 50/60 Hz or 20 … 72 V DC

(at U > 60 V DC the ambient temperature can be
max. 50°C)

Power consumption 1 … 9 VA AC, max. 1,5 W DC
Output relay output (DPDT)

2 floating spdt

Relay data

- potential separation min. 500 V DC

- contact material AgCdO and 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 capacitance max. 750 VA AC, 54 W DC‘

Protection class I
Overvoltage category III
Modes A: max. detection, overflow protection,

overfill protection
B: min. detection, dry run protection

T - Transistor output (SWING E82 T)

Supply voltage 10 … 55 V DC
Power consumption max. 0,5 W
Output floating transistor output

overload resistant and permanently shortcircuit
proof

Load current max. 400 mA
Voltage loss max. 1 V
Turn-on voltage max. 55 V DC
Blocking current < 10 µA
Protection class II
Overvoltage category III
Modes A: max. detection, overflow protection,

overfill protection
B: min. detection, dry run protection

Z - Two-wire output (SWING E82 Z)

Supply voltage 12 … 36 V DC (via the VEGA-signal conditioning
instrument)
Output two-wire output
Required signal conditioning instrument VEGATOR 536 EX, 537 EX, 636 EX,

VEGALOG 571

Current consumption

- tuning fork free approx. 8 mA

- tuning fork covered approx. 16 mA

- fault signal > 22 mA

Protection class II
Overvoltage category III
Modes definition via the signal conditioning instrument

VEGASWING 81A EXD and 83A EXD 9