Vega vegaflex 83 User manual

Operating Instructions
TDR sensor for continuous level and
interface measurement of liquids
VEGAFLEX 83
Probus PA
Polished rod probe
Document ID: 44223

2
Contents
VEGAFLEX 83 • Probus PA
44223-EN-140430
Contents
1 About this document
1.1 Function ........................................................................................................................... 4
1.2 Target group ..................................................................................................................... 4
1.3 Symbols used................................................................................................................... 4
2 For your safety
2.1 Authorised personnel ....................................................................................................... 5
2.2 Appropriate use................................................................................................................ 5
2.3 Warning about incorrect use............................................................................................. 5
2.4 General safety instructions............................................................................................... 5
2.5 CE conformity................................................................................................................... 5
2.6 NAMUR recommendations .............................................................................................. 6
2.7 Environmental instructions ............................................................................................... 6
3 Product description
3.1 Conguration.................................................................................................................... 7
3.2 Principle of operation........................................................................................................ 8
3.3 Packaging, transport and storage................................................................................... 11
3.4 Accessories and replacement parts ............................................................................... 11
4 Mounting
4.1 General instructions ....................................................................................................... 14
4.2 Mounting instructions ..................................................................................................... 14
5 Connecting to power supply
5.1 Preparing the connection ............................................................................................... 20
5.2 Connecting..................................................................................................................... 20
5.3 Wiring plan, single chamber housing.............................................................................. 22
5.4 Wiring plan, double chamber housing ............................................................................ 22
5.5 Double chamber housing with DIS-ADAPT .................................................................... 24
5.6 Wiring plan - version IP 66/IP 68, 1 bar........................................................................... 25
5.7 Supplementary electronics............................................................................................. 25
5.8 Set instrument address .................................................................................................. 25
5.9 Switch-on phase............................................................................................................. 26
6 Set up with the display and adjustment module
6.1 Insert display and adjustment module............................................................................ 27
6.2 Adjustment system......................................................................................................... 28
6.3 Parameter adjustment - Quick setup .............................................................................. 29
6.4 Parameter adjustment - Extended adjustment................................................................ 32
6.5 Saving the parameter adjustment data........................................................................... 50
7 Setup with PACTware
7.1 Connect the PC.............................................................................................................. 51
7.2 Parameter adjustment with PACTware............................................................................ 51
7.3 Set up with the quick setup............................................................................................. 52
7.4 Saving the parameter adjustment data........................................................................... 57
8 Set up with other systems
8.1 DD adjustment programs ............................................................................................... 58
9 Diagnostics and service
9.1 Maintenance .................................................................................................................. 59

3
Contents
VEGAFLEX 83 • Probus PA
44223-EN-140430
9.2 Diagnosis memory ......................................................................................................... 59
9.3 Status messages............................................................................................................ 60
9.4 Rectify faults................................................................................................................... 64
9.5 Exchanging the electronics module................................................................................ 68
9.6 Exchanging the rod ........................................................................................................ 69
9.7 Software update ............................................................................................................. 70
9.8 How to proceed if a repair is needed .............................................................................. 71
10 Dismounting
10.1 Dismounting steps.......................................................................................................... 72
10.2 Disposal ......................................................................................................................... 72
11 Supplement
11.1 Technical data ................................................................................................................ 73
11.2 Communication Probus PA........................................................................................... 80
11.3 Dimensions .................................................................................................................... 85
Safety instructions for Ex areas
Please note the Ex-specic safety information for installation and op-
eration in Ex areas. These safety instructions are part of the operating
instructions manual and come with the Ex-approved instruments.
Editing status: 2014-03-31

4
1 About this document
VEGAFLEX 83 • Probus PA
44223-EN-140430
1 About this document
1.1 Function
This operating instructions manual provides all the information you
need for mounting, connection and setup as well as important instruc-
tions for maintenance and fault rectication. Please read this informa-
tion before putting the instrument into operation and keep this manual
accessible in the immediate vicinity of the device.
1.2 Target group
This operating instructions manual is directed to trained specialist
personnel. The contents of this manual should be made available to
these personnel and put into practice by them.
1.3 Symbols used
Information, tip, note
This symbol indicates helpful additional information.
Caution: If this warning is ignored, faults or malfunctions can result.
Warning: If this warning is ignored, injury to persons and/or serious
damage to the instrument can result.
Danger: If this warning is ignored, serious injury to persons and/or
destruction of the instrument can result.
Ex applications
This symbol indicates special instructions for Ex applications.
•List
The dot set in front indicates a list with no implied sequence.
→ Action
This arrow indicates a single action.
1 Sequence of actions
Numbers set in front indicate successive steps in a procedure.
Battery disposal
This symbol indicates special information about the disposal of bat-
teries and accumulators.

5
2 For your safety
VEGAFLEX 83 • Probus PA
44223-EN-140430
2 For your safety
2.1 Authorised personnel
All operations described in this operating instructions manual must
be carried out only by trained specialist personnel authorised by the
plant operator.
During work on and with the device the required personal protective
equipment must always be worn.
2.2 Appropriate use
VEGAFLEX 83 is a sensor for continuous level measurement.
You can nd detailed information about the area of application in
chapter "Product description".
Operational reliability is ensured only if the instrument is properly
used according to the specications in the operating instructions
manual as well as possible supplementary instructions.
2.3 Warning about incorrect use
Inappropriate or incorrect use of the instrument can give rise to
application-specic hazards, e.g. vessel overll or damage to system
components through incorrect mounting or adjustment.
2.4 General safety instructions
This is a state-of-the-art instrument complying with all prevailing
regulations and guidelines. The instrument must only be operated in a
technically awless and reliable condition. The operator is responsible
for the trouble-free operation of the instrument.
During the entire duration of use, the user is obliged to determine the
compliance of the necessary occupational safety measures with the
current valid rules and regulations and also take note of new regula-
tions.
The safety instructions in this operating instructions manual, the na-
tional installation standards as well as the valid safety regulations and
accident prevention rules must be observed by the user.
For safety and warranty reasons, any invasive work on the device
beyond that described in the operating instructions manual may be
carried out only by personnel authorised by the manufacturer. Arbi-
trary conversions or modications are explicitly forbidden.
The safety approval markings and safety tips on the device must also
be observed.
2.5 CE conformity
The device fullls the legal requirements of the applicable EC guide-
lines. By axing the CE marking, we conrm successful testing of the
product.
You can nd the CE Certicate of Conformity in the download section
of our homepage.

6
2 For your safety
VEGAFLEX 83 • Probus PA
44223-EN-140430
Electromagnetic compatibility
Instruments in four-wire or Ex-d-ia version are designed for use in an
industrial environment. Nevertheless, electromagnetic interference
from electrical conductors and radiated emissions must be taken into
account, as is usual with class A instruments according to EN 61326-
1. If the instrument is used in a dierent environment, the electromag-
netic compatibility to other instruments must be ensured by suitable
measures.
2.6 NAMUR recommendations
NAMUR is the automation technology user association in the process
industry in Germany. The published NAMUR recommendations are
accepted as the standard in eld instrumentation.
The device fullls the requirements of the following NAMUR recom-
mendations:
•NE 21 – Electromagnetic compatibility of equipment
•NE 43 – Signal level for malfunction information from measuring
transducers
•NE 53 – Compatibility of eld devices and display/adjustment
components
•NE 107 – Self-monitoring and diagnosis of eld devices
For further information see www.namur.de.
2.7 Environmental instructions
Protection of the environment is one of our most important duties.
That is why we have introduced an environment management system
with the goal of continuously improving company environmental pro-
tection. The environment management system is certied according
to DIN EN ISO 14001.
Please help us fulll this obligation by observing the environmental
instructions in this manual:
•Chapter "Packaging, transport and storage"
•Chapter "Disposal"

7
3 Product description
VEGAFLEX 83 • Probus PA
44223-EN-140430
3 Product description
3.1 Conguration
The type label contains the most important data for identication and
use of the instrument:
2
1
13
14
15
16
12
11
5
3
6
4
7
8
9
10
Fig. 1: Layout of the type label (example)
1 Instrument type
2 Product code
3 Approvals
4 Power supply and signal output, electronics
5 Protection rating
6 Probe length
7 Process and ambient temperature, process pressure
8 Material, wetted parts
9 Hardware and software version
10 Order number
11 Serial number of the instrument
12 Symbol of the device protection class
13 ID numbers, instrument documentation
14 Reminder to observe the instrument documentation
15 NotiedauthorityforCEmarking
16 Approval directives
The type label contains the serial number of the instrument. With it
you can nd the following instrument data on our homepage:
•Product code (HTML)
•Delivery date (HTML)
•Order-specic instrument features (HTML)
•Operating instructions and quick setup guide at the time of ship-
ment (PDF)
•Order-specic sensor data for an electronics exchange (XML)
•Test certicate (PDF) - optional
Go to www.vega.com, "VEGATools" and "Instrument search". Enter
the serial number.
Alternatively, you can access the data via your smartphone:
•Download the smartphone app "VEGATools" from the "Apple App
Store" or the "GooglePlayStore"
Type label
Serial number - Instru-
ment search

8
3 Product description
VEGAFLEX 83 • Probus PA
44223-EN-140430
•Scan the Data Matrix code on the type label of the instrument or
•Enter the serial number manually in the app
This operating instructions manual applies to the following instrument
versions:
•Hardware from 1.0.0
•Software from 1.0.0
•Only for instrument versions without SIL qualication
This electronics version can be determined via the product code on
the type label as well as on the electronics.
•Standard electronics: Type FX80PA.-
The scope of delivery encompasses:
•Sensor
•Documentation
– this operating instructions manual
– Test certicate measuring accuracy (optional)
– Operating instructions manual "Display and adjustment mod-
ule" (optional)
– Supplementary instructions "GSM/GPRSradiomodule"
(optional)
– Supplementary instructions manual "Heating for display and
adjustment module" (optional)
– Supplementary instructions manual "Plug connector for con-
tinuously measuring sensors" (optional)
– Ex-specic "Safety instructions" (with Ex versions)
– if necessary, further certicates
3.2 Principle of operation
The VEGAFLEX 83 is a level sensor with polished rod probe for
continuous level or interface measurement, particularly suitable for
applications in the food processing and pharmaceutical industry.
Optionally an autoclaved version with separable housing is available.
High frequency microwave pulses are guided along a steel cable or
a rod. Upon reaching the product surface, the microwave pulses are
reected. The running time is evaluated by the instrument and output-
ted as level.
Scope of this operating
instructions manual
Versions
Scope of delivery
Application area
Functional principle -
level measurement

9
3 Product description
VEGAFLEX 83 • Probus PA
44223-EN-140430
d
h
1
Fig. 2: Level measurement
1 Sensorreferenceplane(sealsurfaceoftheprocesstting)
d Distance to the interface
h Height - Level
Probe end tracking
To increase sensitivity, the probe is equipped with probe end tracking.
In products with a low dielectric constant, this function is very helpful.
This is the case, for example, in plastic granules, packing chips or in
vessels with uidized products.
Between a dielectric constant of 1.5 and 3, the function switches on, if
required. As soon as the level echo can no longer be detected, probe
end tracking is automatically activated. The measurement is contin-
ued with the last calculated dielectric constant.
The accuracy thus depends on the stability of the dielectric constant.
If you measure a medium with a dielectric constant below 1.5, probe
end tracking is always active. In this case, you have to enter the
dielectric constant of the medium. A stable dielectric constant is very
important here.
High frequency microwave impulses are guided along a steel cable or
rod. Upon reaching the product surface, a part of the microwave im-
pulses is reected. The other part passes through the upper product
and is reected by the interface. The running times to the two product
layers are processed by the instrument.
Functional principle - in-
terface measurement

10
3 Product description
VEGAFLEX 83 • Probus PA
44223-EN-140430
TS
d1
h1
h2
d2
1
L2
L1
L3
Fig. 3: Interface measurement
1 Sensorreferenceplane(sealsurfaceoftheprocesstting)
d1 Distance to the interface
d2 Distance to the level
TS Thicknessoftheuppermedium(d1-d2)
h1 Height - Interface
h2 Height - Level
L1 Lower medium
L2 Upper medium
L3 Gasphase
Upper medium (L2)
•The upper medium must not be conductive
•The dielectric constant of the upper medium or the actual distance
to the interface must be known (input required). Min. dielectric con-
stant: 1.6. You can nd a list of dielectric constants on our home
page: www.vega.com.
•The composition of the upper medium must be stable, no varying
products or mixtures
•The upper medium must be homogeneous, no stratications
within the medium
•Min. thickness of the upper medium 50 mm (1.97 in)
•Clear separation from the lower medium, emulsion phase or detri-
tus layer max. 50 mm (1.97 in)
•If possible, no foam on the surface
Lower medium (L1)
•The dielectric constant must be 10 higher than the dielectric
constant of the upper medium, preferably electrically conductive.
Example: upper medium dielectric constant 2, lower medium at
least dielectric constant 12.
Gas phase (L3)
•Air or gas mixture
•Gas phase - dependent on the application, gas pahse does not
always exist (d2 = 0)
Prerequisites for inter-
face measurement

11
3 Product description
VEGAFLEX 83 • Probus PA
44223-EN-140430
The instrument is always preset to the application "Level measure-
ment".
For the interface measurement, you can select the requested output
signal with the setup.
3.3 Packaging, transport and storage
Your instrument was protected by packaging during transport. Its
capacity to handle normal loads during transport is assured by a test
based on ISO 4180.
The packaging of standard instruments consists of environment-
friendly, recyclable cardboard. For special versions, PE foam or PE
foil is also used. Dispose of the packaging material via specialised
recycling companies.
Transport must be carried out in due consideration of the notes on the
transport packaging. Nonobservance of these instructions can cause
damage to the device.
The delivery must be checked for completeness and possible transit
damage immediately at receipt. Ascertained transit damage or con-
cealed defects must be appropriately dealt with.
Up to the time of installation, the packages must be left closed and
stored according to the orientation and storage markings on the
outside.
Unless otherwise indicated, the packages must be stored only under
the following conditions:
•Not in the open
•Dry and dust free
•Not exposed to corrosive media
•Protected against solar radiation
•Avoiding mechanical shock and vibration
•Storage and transport temperature see chapter "Supplement -
Technicaldata-Ambientconditions"
•Relative humidity 20 … 85 %
3.4 Accessories and replacement parts
The display and adjustment module PLICSCOM is used for measured
value indication, adjustment and diagnosis. It can be inserted into the
sensor or the external display and adjustment unit and removed at
any time.
You can nd further information in the operating instructions "Display
andadjustmentmodulePLICSCOM" (Document-ID 27835).
The interface adapter VEGACONNECT enables the connection of
communication-capable instruments to the USB interface of a PC. For
parameter adjustment of these instruments, the adjustment software
PACTware with VEGA-DTM is required.
Output signal
Packaging
Transport
Transport inspection
Storage
Storage and transport
temperature
PLICSCOM
VEGACONNECT

12
3 Product description
VEGAFLEX 83 • Probus PA
44223-EN-140430
You can nd further information in the operating instructions "Interface
adapterVEGACONNECT" (Document-ID 32628).
The VEGADIS 81 is an external display and adjustment unit for VEGA
plics®sensors.
For sensors with double chamber housing the interface adapter "DIS-
ADAPT" is also required for VEGADIS 81.
You can nd further information in the operating instructions "VE-
GADIS81" (Document-ID 43814).
The adapter "DIS-ADAPT" is an accessory part for sensors with
double chamber housings. It enables the connection of VEGADIS 81
to the sensor housing via an M12 x 1 plug.
You can nd further information in the supplementary instructions
"AdapterDISADAPT" (Document-ID 45250).
The PLICSMOBILE T61 is an external GSM/GPRS radio unit for
transmission of measured values and for remote parameter adjust-
ment of plics® sensors. The adjustment is carried out via PACTware/
DTM by using the integrated USB connection.
You can nd further information in the supplementary instructions
"PLICSMOBILET61" (Document-ID 37700).
The protective cover protects the sensor housing against soiling and
intense heat from solar radiation.
You will nd additional information in the supplementary instructions
manual "Protective cover" (Document-ID 34296).
Screwed anges are available in dierent versions according to the
following standards: DIN 2501, EN 1092-1, BS 10, ANSI B 16.5,
JIS B 2210-1984, GOST 12821-80.
You can nd additional information in the supplementary instructions
manual "FlangesaccordingtoDIN-EN-ASME-JIS" (Document-ID
31088).
The electronics module VEGAFLEX series 80 is a replacement part
for TDR sensors of VEGAFLEX series 80. There is a dierent version
available for each type of signal output.
You can nd further information in the operating instructions manual
"ElectronicsmoduleVEGAFLEXseries80".
The display and adjustment module can be optionally replaced by a
display and adjustment module with heating function.
You can use this display and adjustment module in an ambient tem-
perature range of -40 … +70 °C.
You can nd further information in the operating instructions "Display
and adjustment module with heating" (Document-ID 31708).
VEGADIS 81
DIS-ADAPT
PLICSMOBILE T61
Protective cap
Flanges
Electronics module
Display and adjustment
module with heating

13
3 Product description
VEGAFLEX 83 • Probus PA
44223-EN-140430
If you mount the VEGAFLEX 83 in a bypass tube or standpipe, you
have to avoid contact to the bypass tube by using a spacer at the
probe end.
You can nd additional information in the operating instructions
manual "Centering".
Spacer

14
4 Mounting
VEGAFLEX 83 • Probus PA
44223-EN-140430
4 Mounting
4.1 General instructions
Protect your instrument against moisture penetration through the fol-
lowing measures:
•Use the recommended cable (see chapter "Connectingtopower
supply")
•Tighten the cable gland
•Turn the housing in such a way that the cable gland points down-
ward
•Loop the connection cable downward in front of the cable gland
This applies particularly to:
•Outdoor mounting
•Installations in areas where high humidity is expected (e.g. through
cleaning processes)
•Installations on cooled or heated vessels
In the case of instrument housings with self-sealing NPT threads, it is
not possible to have the cable entries screwed in at the factory. The
openings for the cable glands are therefore covered with red protec-
tive caps as transport protection.
Prior to setup you have to replace these protective caps with ap-
proved cable glands or close the openings with suitable blind plugs.
The suitable cable glands and blind plugs come with the instrument.
Make sure that all parts of the instrument exposed to the process are
suitable for the existing process conditions.
These are mainly:
•Active measuring component
•Process tting
•Process seal
Process conditions are particularly:
•Process pressure
•Process temperature
•Chemical properties of the medium
•Abrasion and mechanical inuences
You can nd the specications of the process conditions in chapter
"Technicaldata" as well as on the type label.
4.2 Mounting instructions
Mount VEGAFLEX 83 in such a way that the distance to vessel instal-
lations or to the vessel wall is at least 300 mm (12 in). In non-metallic
vessels, the distance to the vessel wall should be at least 500 mm
(19.7 in).
During operation, the probe must not touch any installations or the
vessel wall. If necessary, fasten the probe end.
Protection against mois-
ture
Protective caps
Suitability for the process
conditions
Installation position

15
4 Mounting
VEGAFLEX 83 • Probus PA
44223-EN-140430
In vessels with conical bottom it can be advantageous to mount the
sensor in the center of the vessel, as measurement is then possible
nearly down to the lowest point of the bottom. Keep in mind that
measurement all the way down to the tip of the probe may not be pos-
sible. The exact value of the min. distance (lower dead band) is stated
in chapter "Technicaldata".
Fig. 4: Vessel with conical bottom
Plastic vessel/Glass vessel
The guided microwave principle requires a metallic surface on the
process tting. Therefore, in plastic vessels, etc., use an instru-
ment version with ange (from DN 50) or place a metal sheet
(ø > 200 mm/8 in) beneath the process tting when screwing it in.
Make sure that the plate has direct contact with the process tting.
When installing rod or cable probes in vessels without metal walls,
e.g. in plastic vessels, the measured value can be inuenced by
strong electromagnetic elds (emitted interference according to
EN 61326: class A). In this case, use a probe with coaxial version.
Type of vessel

16
4 Mounting
VEGAFLEX 83 • Probus PA
44223-EN-140430
1 2
Fig. 5: Installation in non-metallic vessel
1 Flange
2 Metal sheet
If possible, avoid sockets. Mount the sensor ush with the vessel top.
If this is not possible, use short sockets with small diameter.
Higher sockets or sockets with a bigger diameter can generally be
used. They can, however, increase the upper blocking distance (dead
band). Check if this is relevant for your measurement.
In such cases, always carry out a false signal suppression after instal-
lation. You can nd further information under "Setup procedure".
h
d
dh
DN40...DN150
>DN150... DN200 150
100
_
<
_
<
Fig. 6: Mounting socket
When welding the socket, make sure that the socket is ush with the
vessel top.
Socket

17
4 Mounting
VEGAFLEX 83 • Probus PA
44223-EN-140430
1 2
Fig.7:Socketmustbeinstalledush
1 Unfavourable installation
2 Socketush-optimuminstallation
Before beginning the welding work, remove the electronics module
from the sensor. By doing this, you avoid damage to the electronics
through inductive coupling.
Do not mount the instruments in or above the lling stream. Make sure
that you detect the product surface, not the inowing product.
Fig.8:Mountingofthesensorwithinowingmedium
The reference plane for the measuring range of the sensors is the
sealing surface of the thread or ange.
Keep in mind that a min. distance must be maintained below the refer-
ence plane and possibly also at the end of the probe - measurement
in these areas is not possible (dead band). The length of the cable
can be used all the way to the end only when measuring conductive
Welding work
Inowingmedium
Measuring range

18
4 Mounting
VEGAFLEX 83 • Probus PA
44223-EN-140430
products. These blocking distances for dierent mediums are listed
in chapter "Technicaldata". Keep in mind for the adjustment that the
default setting for the measuring range refers to water.
The process tting must be sealed if there is gauge or low pressure in
the vessel. Before use, check if the seal material is resistant against
the measured product and the process temperature.
The max. permissible pressure is specied in chapter "Technical
data" or on the type label of the sensor.
In case of dicult installation conditions, the probe can be also
mounted laterally. For this purpose, adapt the rod with rod extensions
or bow-shaped segments.
Let the probe length determine automatically by the instrument to
compensate the resulting running time changes.
The determine probe length can deviate from the actual probe length
when using bow-shaped segments.
If installations such as struts, ladders, etc. exist on the vessel wall,
then the probe should have a distance to the vessel wall of at least
300 mm (11.81 in).
You can nd further information in the supplementary instructions of
the rod extension.
In case of dicult installation conditions, for example in a socket, the
probe can be adapted respectively with a rod extension.
Let the probe length determine automatically by the instrument to
compensate the resulting running time changes.
You can nd further information in the supplementary instructions of
the rod extension.
For use in an autoclave, e.g. for sterilization, the VEGAFLEX 83 is
available as autoclaved version.
Hence you can separate the housing from the process tting.
Open the slotted nut with a hook wrench and remove the housing in
an upward direction.
The side of the process tting must be covered with a lid after the
housing is removed. Screw the enclosed lid with slotted nut onto the
instrument side of the process tting and tighten the nut with a torque
of 20 Nm.
Make sure that no liquid or contamination penetrates into the housing
or the process side.
After autoclaving, screw the lid o again and place the housing verti-
cally on the side of the process tting. Tighten the slotted nut with a
torque of 20 Nm.
Pressure
Lateral installation
Rod extension
Autoclaved version

19
4 Mounting
VEGAFLEX 83 • Probus PA
44223-EN-140430
112 mm
(4.84")
DIN DN25 DN32 DN40 / 1" 11/2"
L
ø 54 mm
(2.13")
ø w
183 mm
(7.20")
65,3 mm
(2.57")
ø w
ø 50,5
DIN DN50 / 2" ø 64
ø 91DIN DN65 / 3"
21
3
Fig. 9: Autoclaved version
1 Groovenut
2 Processtting
3 Coverwithgroovenut

20
5 Connecting to power supply
VEGAFLEX 83 • Probus PA
44223-EN-140430
5 Connecting to power supply
5.1 Preparing the connection
Always keep in mind the following safety instructions:
•Connect only in the complete absence of line voltage
•If overvoltage surges are expected, overvoltage arresters should
be installed
The voltage supply is provided by a Probus DP /PA segment coupler.
The voltage supply range can dier depending on the instrument
version. You can nd the data for voltage supply in chapter "Technical
data".
Connection is made with screened cable according to the Probus
specication. Power supply and digital bus signal are carried over the
same two-wire connection cable.
Use cable with round cross section for instruments with housing and
cable gland. To ensure the seal eect of the cable gland (IP protection
rating), nd out which cable outer diameter the cable gland is suitable
for.
Use a cable gland tting the cable diameter.
Please make sure that your installation is carried out according to the
Probus specication. In particular, make sure that the termination of
the bus is done with appropriate terminating resistors.
You can nd detailed information of the cable specication, installa-
tion and topology in the "ProbusPA-UserandInstallationGuide-
line" on www.probus.com.
With plastic housing, the NPT cable gland or the Conduit steel tube
must be screwed without grease into the threaded insert.
Max. torque for all housings see chapter "Technicaldata".
Make sure that the cable screen and grounding are carried out ac-
cording to Fieldbus specication. We recommend to connect the
cable screen to ground potential on both ends.
In systems with potential equalisation, connect the cable screen
directly to ground potential at the power supply unit, in the connection
box and at the sensor. The screen in the sensor must be connected
directly to the internal ground terminal. The ground terminal outside
on the housing must be connected to the potential equalisation (low
impedance).
5.2 Connecting
The voltage supply and signal output are connected via the spring-
loaded terminals in the housing.
Connection to the display and adjustment module or to the interface
adapter is carried out via contact pins in the housing.
Safety instructions
Voltage supply
Connection cable
Cable gland ½ NPT
Cable screening and
grounding
Connection technology