VEGA VIB31-53 User Manual
Operating Instructions
VEGAVIB
Contents
Safety information .......................................................................... 2
Note Ex area .................................................................................. 2
1 Product description..................................................................... 3
1.1 Function and configuration .................................................... 3
1.2 Types and versions ................................................................ 3
1.3 Approvals .............................................................................. 4
1.4 Technical data ....................................................................... 5
1.5 Dimensions .......................................................................... 11
2 Mounting..................................................................................... 13
2.1 Mounting instructions .......................................................... 13
3 Electrical connection ................................................................ 16
3.1 Connection instructions VEGAVIB ....................................... 16
3.2 Wiring plan VEGAVIB .......................................................... 16
4 Set-up ......................................................................................... 18
4.1 VEGAVIB .............................................................................. 18
Contents
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
all prevailing safety regulations and accident prevention rules.
For safety and warranty reasons, any internal
work in the instruments, apart from that involved
in normal installation and electrical connection,
must be carried out only by qualified VEGA personnel.
2 VEGAVIB
Note Ex area
Please note the attached safety instructions containing important information on installation and
operation in Ex areas.
These safety instructions are part of the operating instructions manual and come with the Ex
approved instruments.
Product description
1 Product description
1.1 Function and configuration
VEGAVIB compact level switches are used for
level monitoring of powders and granules. The
vibrating level switches are energised
piezoelectrically and vibrate at their mechanical
frequency (VEGAVIB 31 approx. 210 Hz,
VEGAVIB 41 and 43 approx. 530 Hz, VEGAVIB
51, 52 and 53 approx. 350 Hz).
If the measured product reaches the sensor, the
vibrating amplitude is damped. An integrated
electronics detects this damping and triggers a
switching command.
VEGAVIB 31 is a tuning fork sensor and is suitable for unproblematic, fine-grained solids
> 100 g/l which do not cause buildup. Typical
products are gypsum, cement, chalk, fine granules, etc.
VEGAVIB series 40 and 50 vibrating level
switches can be used where levels of solids
with a density greater than approx. 20 g/l need
to be reliably detected. Due to the rod design, it
is almost impossible for material to build up or
get wedged in. This enables their use in foodstuffs and light solids such as e.g. packing
chips. Typical products are cement, gypsum,
chalk, flour, styrofoam, shredded paper, washing powder, plastic granules, down feathers,
packing chips etc. A pulsed actuating signal
causes the rod to begin vibrating again after
immersion and removes the measured product
from the vibrating rod.
Series 50 sensors are also suitable for the detection of solids in water.
1.2 Types and versions
VEGAVIB 31
Tuning fork compact level switch with fixed
installation length and mounting thread G 1 A.
The oscillator of VEGAVIB 31 has a floating
relay output.
VEGAVIB 41
Vibrating rod compact level switch with fixed
installation length and mounting thread G 1 A or
1 NPT. Three different oscillators are available
for different electrical outputs (contactless
electronic switch, relay or transistor). As an
option, a temperature adapter is available for
product temperatures exceeding 100°C.
VEGAVIB 43
Vibrating rod compact level switch with tube
extension up to max. 4 m. All other features are
the same as VEGAVIB 41. As an option, a lock
fitting is available for infinitely variable height
adjustment.
VEGAVIB 51
Vibrating rod compact level switch with fixed
installation length and mounting thread G 1½ A
or 1½ NPT. Four different oscillators are available for different electrical outputs (contactless
electronic switch, relay, transistor or two-wire
output). As an option, a temperature adapter is
available for product temperatures exceeding
100°C.
VEGAVIB 3
Product description
VEGAVIB 52
Vibrating rod compact level switch with suspension cable extension up to max. 20 m. All other
features are the same as version VEGAVIB 51.
This version is suitable for temperatures up to
80°C.
VEGAVIB 53
Vibrating rod compact level switch with tube
extension up to max. 4 m. All other features are
the same as VEGAVIB 51. As an option, a lock
fitting is available for infinitely variable height
adjustment.
1.3 Approvals
VEGAVIB 51 Ex(S) and 53 Ex(S) are approved
for use in hazardous or dust-explosive areas of
zone 0, 20 and 2 in the scope of ATEX.
VEGAVIB 52 Ex is approved for use in hazardous areas of zone 0.
For such application, the corresponding official
documents (type approval certificate) must be
noted. They are delivered with the respective
instrument. Also note the relevant mounting and
operating instructions.
4 VEGAVIB
Product description
1.4 Technical data
VEGAVIB 31
Housing
Housing material plastic PBT (Polyester)
Protection IP 66
Cable entry 2 x Pg 13.5
Terminals for max. 1.5 mm2 wire cross-section
Mechanical connection
Thread G 1 A of 1.4571
T uning fork
Material 1.4571 (StSt)
Lateral load max. 300 N perpendicular to the narrow fork side
Weight
VEGAVIB 31 approx. 0.8 kg
Ambient conditions
Ambient temperature on the housing -40°C … +70°C
Product temperature -40°C … +100°C (130°C for max. 30 minutes)
Storage and transport temperature -40°C … +70°C
Operating pressure
VEGAVIB 31 max. 25 bar
Product
Product density ≥0.1 g/cm³ (≥100 g/l)
Granulation size max. 6 mm
Oscillator - R (relay output)
Protection class I
Overvoltage category III
Immune to EMI > 10 V/m
Function
Integration time approx. 2 s
Frequency approx. 210 Hz
Signal lamp LED for switching point indication
Mode A/B switch
CE conformity
VEGAVIB 31 vibrating level switch meets the protective regulations of EMC (89/336/EWG) and
NSR (73/23/EWG). 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
VEGAVIB 5
A - max. level detection
B - min. level detection
Product description
VEGAVIB 41 and 43
Housing
Housing material plastic PBT (Polyester)
Protection IP 66
Cable entry 1 x Pg 13.5 (with oscillator R = 2 x Pg 13.5)
Terminals for max. 1.5 mm2 wire cross-section
Mechanical connection
Thread G 1 A or 1 NPT of 1.4571 (stst)
Lock fitting (VEGAVIB 43) G 1½ A of 1.4571 (stst)
Vibrating rod
Material 1.4571 (stst)
Lateral load 60 Nm or
Extension tube (VEGAVIB 43)
Materials 1.4571 (stst)
Length 350 mm … 4000 mm
Weight
VEGAVIB 41 approx. 0.8 kg
VEGAVIB 43 approx. 0.8 kg + extension tube (approx. 1 kg/m)
Ambient conditions
Ambient temperature on the housing -40°C … +70°C
Product temperature -40°C … +100°C
Storage and transport temperature -40°C … +70°C
Product temperature with temperature
adapter of 1.4571 (option) -40°C … +150°C
max. 400 N on the rod end (VEGAVIB 41)
Permissible ambient
temperature
70˚C
60˚C
50˚C
100˚ 150˚C
110˚
120˚ 130˚
140˚
Product temperature with
temperature
adapter
Operating pressure
VEGAVIB 41, 43 max. 10 bar
VEGAVIB 43 with lock fitting
- version 1 unpressurised
- version 2 max. 4 bar
Product
Density ≥0.02 g/cm³ (≥ 20 g/l)
6 VEGAVIB
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