Vega POINTRAC 31 User manual

Operating Instructions
Radiometric sensor for level detection
POINTRAC 31
Four-wire 8/16 mA/HART
Document ID: 39411

2
Contents
POINTRAC 31 • Four-wire 8/16 mA/HART
39411-EN-200522
Contents
1 About this document ............................................................................................................... 4
1.1 Function ........................................................................................................................... 4
1.2 Target group ..................................................................................................................... 4
1.3 Symbols used................................................................................................................... 4
2 For your safety ......................................................................................................................... 5
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 EU conformity................................................................................................................... 6
2.6 NAMUR recommendations .............................................................................................. 6
2.7 Installation and operation in the USA and Canada ........................................................... 6
2.8 Environmental instructions ............................................................................................... 6
3 Product description ................................................................................................................. 7
3.1 Conguration.................................................................................................................... 7
3.2 Principle of operation........................................................................................................ 8
3.3 Packaging, transport and storage..................................................................................... 8
3.4 Accessories...................................................................................................................... 9
3.5 Corresponding source container.................................................................................... 11
4 Mounting................................................................................................................................. 13
4.1 General instructions ....................................................................................................... 13
4.2 Mounting instructions ..................................................................................................... 14
5 Connecting to power supply................................................................................................. 20
5.1 Preparing the connection ............................................................................................... 20
5.2 Connection..................................................................................................................... 23
6 Set up with the display and adjustment module ................................................................ 26
6.1 Insert display and adjustment module............................................................................ 26
6.2 Adjustment system......................................................................................................... 27
6.3 Parameter adjustment .................................................................................................... 28
6.4 Saving the parameterisation data................................................................................... 39
7 Setup with PACTware............................................................................................................. 40
7.1 Connect the PC.............................................................................................................. 40
7.2 Parameter adjustment with PACTware............................................................................ 41
7.3 Saving the parameterisation data................................................................................... 42
8 Set up with other systems .................................................................................................... 43
8.1 DD adjustment programs ............................................................................................... 43
8.2 Field Communicator 375, 475 ........................................................................................ 43
9 Diagnostics and servicing .................................................................................................... 44
9.1 Maintenance .................................................................................................................. 44
9.2 Status messages............................................................................................................ 44
9.3 Rectify faults................................................................................................................... 46
9.4 Exchanging the electronics module................................................................................ 47
9.5 Software update ............................................................................................................. 48
9.6 How to proceed if a repair is necessary.......................................................................... 48

3
Contents
POINTRAC 31 • Four-wire 8/16 mA/HART
39411-EN-200522
10 Dismount................................................................................................................................. 50
10.1 Dismounting steps.......................................................................................................... 50
10.2 Disposal ......................................................................................................................... 50
11 Supplement ............................................................................................................................ 51
11.1 Technical data ................................................................................................................ 51
11.2 Dimensions .................................................................................................................... 55
11.3 Industrial property rights................................................................................................. 60
11.4 Trademark ...................................................................................................................... 60
Safety instructions for Ex areas
TakenoteoftheExspecicsafetyinstructionsforExapplications.
These instructions are attached as documents to each instrument
with Ex approval and are part of the operating instructions.
Editing status: 2020-05-12

4
1 About this document
POINTRAC 31 • Four-wire 8/16 mA/HART
39411-EN-200522
1 About this document
1.1 Function
This instruction provides all the information you need for mounting,
connection and setup as well as important instructions for mainte-
nance,faultrectication,theexchangeofpartsandthesafetyofthe
user. Please read this information 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 personnel.
Thecontentsofthismanualmustbemadeavailabletothequalied
personnel and implemented.
1.3 Symbols used
Document ID
This symbol on the front page of this instruction refers to the Docu-
ment ID. By entering the Document ID on www.vega.com you will
reach the document download.
Information, note, tip: This symbol indicates helpful additional infor-
mation and tips for successful work.
Note: This symbol indicates notes to prevent failures, malfunctions,
damage to devices or plants.
Caution: Non-observance of the information marked with this symbol
may result in personal injury.
Warning: Non-observance of the information marked with this symbol
may result in serious or fatal personal injury.
Danger: Non-observance of the information marked with this symbol
results in serious or fatal personal injury.
Ex applications
This symbol indicates special instructions for Ex applications.
• List
The dot set in front indicates a list with no implied sequence.
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
POINTRAC 31 • Four-wire 8/16 mA/HART
39411-EN-200522
2 For your safety
2.1 Authorised personnel
All operations described in this documentation must be carried out
onlybytrained,qualied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
The POINTRAC 31 is a sensor for point level detection.
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 this product can give rise to applica-
tion-specichazards,e.g.vesseloverllthroughincorrectmounting
or adjustment. Damage to property and persons or environmental
contamination can result. Also, the protective characteristics of the
instrument can be impaired.
2.4 General safety instructions
This is a state-of-the-art instrument complying with all prevailing
regulations and directives.The instrument must only be operated in a
technicallyawlessandreliablecondition.Theoperatorisresponsi-
ble for the trouble-free operation of the instrument. When measuring
aggressive or corrosive media that can cause a dangerous situation
if the instrument malfunctions, the operator has to implement suitable
measures to make sure the instrument is functioning properly.
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.Forsafety
reasons,onlytheaccessoryspeciedbythemanufacturermustbe
used.
To avoid any danger, the safety approval markings and safety tips on
the device must also be observed.
This measuring system uses gamma rays. Therefore take note of the
instructions for radiation protection in chapter "Product description".
Any work on the source container may only be carried out under the
supervisionofaqualiedradiationprotectionocer.

6
2 For your safety
POINTRAC 31 • Four-wire 8/16 mA/HART
39411-EN-200522
2.5 EU conformity
ThedevicefullsthelegalrequirementsoftheapplicableEUdirec-
tives.ByaxingtheCEmarking,weconrmtheconformityofthe
instrument with these directives.
The EU conformity declaration can be found on our homepage.
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lstherequirementsofthefollowingNAMURrecom-
mendations:
• NE 21 – Electromagnetic compatibility of equipment
• NE 43 – Signal level for fault information from measuring transduc-
ers
• 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 Installation and operation in the USA and
Canada
This information is only valid for USA and Canada. Hence the follow-
ing text is only available in the English language.
Installations in the US shall comply with the relevant requirements of
the National Electrical Code (ANSI/NFPA 70).
Installations in Canada shall comply with the relevant requirements of
the Canadian Electrical Code.
2.8 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lthisobligationbyobservingtheenvironmental
instructions in this manual:
• Chapter "Packaging, transport and storage"
• Chapter "Disposal"

7
3 Product description
POINTRAC 31 • Four-wire 8/16 mA/HART
39411-EN-200522
3 Product description
3.1 Conguration
Thetypelabelcontainsthemostimportantdataforidenticationand
use of the instrument:
2
9
10
4
5
3
6
7
8
9
1
Fig. 1: Layout of the type label (example)
1 Instrument type
2 Product code
3 Electronics
4 Protection rating
5 Process and ambient temperature, process pressure
6 Instrument length
7 Hardware and software version
8 Order number
9 Serial number of the instrument
10 ID numbers, instrument documentation
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
Move to "www.vega.com"andenterinthesearcheldtheserial
number of your instrument.
Alternatively, you can access the data via your smartphone:
• Download the VEGA Tools app from the "Apple App Store" or the
"Google Play Store"
• Scan the DataMatrix 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 1.0.6
• Software from 2.1.0
Type label
Serial number - Instru-
ment search
Scope of this operating
instructions

8
3 Product description
POINTRAC 31 • Four-wire 8/16 mA/HART
39411-EN-200522
Theinstrumentisavailableindierentelectronicsversions.Eachver-
sioncanbeidentiedviatheproductcodeonthetypelabel:
• StandardelectronicstypePROTRACH.-XX
The scope of delivery encompasses:
• Radiometric sensor
• Mounting accessories
• Documentation
• Bluetooth module (optional)
– This operating instructions manual
– Ex-specic"Safety instructions" (with Ex versions)
– Ifnecessary,furthercerticates
3.2 Principle of operation
The instrument is suitable for applications in liquids and bulk solids in
vesselsunderdicultprocessconditions.Thereareapplicationpos-
sibilities in nearly all areas of industry.
The limit level is detected contactlessly through the vessel wall. Nei-
theraprocessttingnoravesselopeningisrequired.Theinstrument
isthusidealforretrotting.
In radiometric measurement, a Caesium-137 or Cobalt-60 isotope
emits focussed gamma rays that are attenuated when penetrating
the vessel wall and the medium. The PVT detector on the opposite
side of the tank receives the radiation. When the intensity of the
radiationdropsbelowadenedvalue,e.g.duetodamping,thenthe
POINTRAC 31 switches.The measuring principle has proven itself
well under extreme conditions because it measures contactlessly
from outside through the vessel wall.The measuring system ensures
maximum safety, reliability and plant availability independent of the
medium and its properties.
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 consists of environment-friendly, recyclable card-
board. 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.
Electronics versions
Scope of delivery
Application area
Functional principle
Packaging
Transport
Transport inspection

9
3 Product description
POINTRAC 31 • Four-wire 8/16 mA/HART
39411-EN-200522
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 %
With instrument weights of more than 18 kg (39.68 lbs) suitable and
approved equipment must be used for lifting and carrying.
3.4 Accessories
The display and adjustment module is used for measured value indi-
cation, adjustment and diagnosis.
The integrated Bluetooth module (optional) enables wireless adjust-
ment via standard adjustment devices.
The interface adapter VEGACONNECT enables the connection of
communication-capable instruments to the USB interface of a PC.
The VEGADIS 81 is an external display and adjustment unit for VEGA
plics®sensors.
VEGADIS 82 is suitable for measured value indication and adjustment
of sensors with HART protocol. It is looped into the 4 … 20 mA/HART
signal cable.
The VEGADIS 62 is suitable for measured value indication of sensors.
It is looped into the 4 … 20 mA/HART signal cable.
The electronics module PT30… is a replacement part for radiometric
sensors POINTRAC 31.
It is located in the large electronics and connection compartment.
The electronics module can only be exchanged by VEGA service
technician.
The supplementary electronics module PROTRAC.ZE… is a replace-
ment part for radiometric sensors POINTRAC 31.
It is located in the lateral adjustment and connection compartment.
The radiometric sensor has temperature limits which must not be
exceeded. In case the max. permissible temperature is exceeded,
Storage
Storage and transport
temperature
Lifting and carrying
PLICSCOM
VEGACONNECT
VEGADIS 81
VEGADIS 82
External indicating unit
Electronics module -
PT30
Supplementary electron-
ics module - PROTRAC.
ZE
Device cooling

10
3 Product description
POINTRAC 31 • Four-wire 8/16 mA/HART
39411-EN-200522
faulty measurements and a permanent damage of the sensor can be
caused.
You have several possibilities to avoid too high ambient temperatures:
Passive sun shade
Direct sun increases the temperature on the sensor by 20 °K.The
bestpossibilitytoprotectthesensoragainsttheeectsofdirectsun
is a suitable roof structure.
Ifthisisnotpossibleoronlywithgreateort,thenyoucanusethe
passive sun shade. The passive sun shade consists of a housing sun
shade and a sun protection hose and can reduce the sensor tempera-
ture by 10 °K.
Air cooling
For ambient temperatures up to +80 °C you can use an air cooling.
The cooling air is generated with vortex coolers. Please check if suf-
cientcompressedairisavailable.Youcanndfurtherinformation
in the supplementary instructions of the air cooling. The air cooling
cannotberetrotted.
Water cooling
For ambient temperatures up to +100 °C you can use a water cool-
ing.Pleasecheckifsucientcooledwaterisavailable.Youcannd
further information in the supplementary instructions of the water
cooling.Thewatercoolingcannotberetrotted.
In order to exclude external interference radiation, you can mount a
gamma modulator in front of the source holder. This allows reliable
measurement even when interference radiation occurs.
Gamma modulator

11
3 Product description
POINTRAC 31 • Four-wire 8/16 mA/HART
39411-EN-200522
Fig. 2: Gamma modulator (optional) for uninterrupted measurement even with
interference radiation
1 Gamma modulator (mounted on the source holder)
For ambient temperatures up to 120 °C (248 °C) the gamma modula-
tor is optionally available with water cooling.
Anynumberofdevicescanbesynchronized.Tosynchronizeseveral
gamma modulators, you need a controller.
3.5 Corresponding source container
A radioactive isotope in a suitable source holder is the prerequisite for
a radiometric measurement setup.
The handling of radioactive substances is regulated by law. The radia-
tion protection rules of the country in which the system is operated
applyrstandforemost.
In Germany, for example, the current radiation protection ordinance
(StrlSchV) based on the Atomic Energy Law (AtG) applies.
The following points are important for measurement with radiometric
methods:
A handling permit is required for operation of a system using gamma
rays.Thispermitisissuedbytherespectivegovernmentoceorthe
responsibleauthority(inGermany,forexample,ocesforenviron-
mental protection, trade supervisory boards, etc.)
Youcanndfurtherinstructionsintheoperatinginstructionsmanual
of the source container.
Handling permit

12
3 Product description
POINTRAC 31 • Four-wire 8/16 mA/HART
39411-EN-200522
When handling radioactive sources, unnecessary radiation exposure
must be avoided. An unavoidable radiation exposure must be kept as
low as possible.Take note of the following three important measures:
1 2 3
Fig. 3: Measures for protection against radioactive radiation
1 Shielding
2 Time
3 Distance
Shielding: Provide good shielding between the source and your-
self as well as all other persons. Special source containers (e.g.
VEGASOURCE) as well as all materials with high density (e.g. lead,
iron,concrete,etc.)provideeectiveshielding.
Time: Stay as short a time as possible in radiation exposed areas.
Distance:Your distance to the source should be as large as possible.
The local dose rate of the radiation decreases in proportion to the
square of the distance to the radiation source.
Theplantoperatormustappointaradiationsafetyocerwiththe
necessary expert knowledge. He is responsible for ensuring that the
radiation protection ordinance is complied with and for implementing
all radiation protection measures.
Control areas are areas in which the local dose rate exceeds a certain
value.Onlypersonswhoundergoocialdosemonitoringareallowed
intothesecontrolareas.Youcanndtherespectivelyvalidlimitvalues
for control areas in the guideline of the respective authority (in Ger-
many, for example, the radiation protection ordinance).
We are at your disposal for further information concerning radiation
protection and regulations in other countries.
General instructions for
radiation protection
Radiationsafetyocer
Control area

13
4 Mounting
POINTRAC 31 • Four-wire 8/16 mA/HART
39411-EN-200522
4 Mounting
4.1 General instructions
The source container is part of the measuring system. In case the
source container is already equipped with an active isotope, the
source container must be locked before mounting.
Danger:
Before mounting; make sure that the source is securely closed. Use
a padlock to secure the source container in the closed condition and
prevent it from being inadvertently opened.
Protect your instrument against moisture ingress through the following
measures:
• Use a suitable connection cable (see chapter "Connecting to
power supply")
• Tighten the cable gland or plug connector
• Lead the connection cable downward in front of the cable entry or
plug connector
This applies mainly to outdoor installations, in areas where high
humidity is expected (e.g. through cleaning processes) and on cooled
or heated vessels.
Note:
Makesurethatthedegreeofcontaminationspeciedinchapter
"Technical data" meets the existing ambient conditions.
Note:
Make sure that during installation or maintenance no moisture or dirt
can get inside the instrument.
To maintain the housing protection, make sure that the housing lid is
closed during operation and locked, if necessary.
Note:
For safety reasons, the instrument must only be operated within the
permissibleprocessconditions.Youcannddetailedinformationon
the process conditions in chapter "Technical data" of the operating
instructions or on the type label.
Hence make sure before mounting that all parts of the instrument ex-
posed to the process are suitable for the existing process conditions.
These are mainly:
• Active measuring component
• Processtting
• Process seal
Process conditions in particular are:
• Process pressure
• Process temperature
• Chemical properties of the medium
• Abrasionandmechanicalinuences
Switchosource
Protection against mois-
ture
Process conditions

14
4 Mounting
POINTRAC 31 • Four-wire 8/16 mA/HART
39411-EN-200522
Metric threads
In the case of instrument housings with metric thread, the cable
glands are screwed in at the factory.They are sealed with plastic
plugs as transport protection.
You have to remove these plugs before electrical connection.
NPT thread
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
free openings for the cable glands are therefore covered with red dust
protection 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.
4.2 Mounting instructions
Note:
During the planning, our specialists will analyse the conditions of the
measurement loop to dimension the isotope accordingly.
Yougeta"SourceSizing"documentspecifyingtherequiredsource
activity and containing all relevant mounting information for your
measuring point.
Youmustfollowtheinstructionsinthis"SourceSizing"documentin
addition to the following mounting instructions.
The following mounting information is applicable as long as there is
nothingelsespeciedinthe"SourceSizing"document.
Cable glands
Installation position

15
4 Mounting
POINTRAC 31 • Four-wire 8/16 mA/HART
39411-EN-200522
2
1
Fig. 4: Mounting position - level detection - version with detector tube
1 Vertical mounting
2 Mounting horizontally, at right angles to container

16
4 Mounting
POINTRAC 31 • Four-wire 8/16 mA/HART
39411-EN-200522
3
2
1
Fig. 5: Mounting position - level detection - version without detector tube
1 Horizontal mounting
2 Vertical mounting
3 Mounting horizontally, at right angles to container
Youcanndinformationonprotectivebarriersandthemounting
of the corresponding source container in the operating instructions
manual of the source container, e.g.VEGASOURCE.
Forleveldetection,thesensorisgenerallymountedhorizontallyatthe
height of the requested limit level. Make sure that there are no struts
or reinforcements at this position in the vessel.
Direct the exit beam of the source container exactly towards the
measuring range of POINTRAC 31.
Fasten the sensor in such a way that it cannot fall out of the holder. If
necessary, provide the sensor with a support from below.
Mount the source container as close as possible to the vessel. If there
are gaps, secure the area with a safety fence and protective grating
so that no one can reach into the dangerous area.
You can mount the sensor (version with detector tube) with the at-
tached mounting clamp to your vessel.
Mounting clamp

17
4 Mounting
POINTRAC 31 • Four-wire 8/16 mA/HART
39411-EN-200522
1
2
3
4
Fig. 6: Mounting clamp
1 Screw M8 x 80
2 Hinge bolt clamp
3 Detector tube
4 Console
1. Determine the exact mounting position of the mounting clamp
and mark the holes.
Drill appropriate holes (max. M12) for fastening the mounting
clamps.
2. For mounting, insert the detector tube (3) into the V-shape holding
xtureoftheconsole(4).
Draw the hinge bolt clamp (2) according to the illustration through
the console (4).
Screw the hinge bolt clamp (2) together and tighten the screw (1)
with a max. torque of 20 Nm (14.75 lbf/ft).
Note:
The mounting clamps do not come with fastening screws. Use fasten-
ing elements that are appropriate for the situation in your plant.
Level detection - max. detection
The POINTRAC 31 is suitable for level detection in liquids or bulk
solids. It is mounted at the height of the requested switching point.
Sensor orientation

18
4 Mounting
POINTRAC 31 • Four-wire 8/16 mA/HART
39411-EN-200522
Fig. 7: POINTRAC 31 as max. level detection (uncovered)
Level detection - min. detection
Fig. 8: POINTRAC 31 as min. level detection (covered)

19
4 Mounting
POINTRAC 31 • Four-wire 8/16 mA/HART
39411-EN-200522
Fig. 9: POINTRAC 31 as level detection (top view)
POINTRAC 31 lends itself well for level detection of bulk solids with
lowdensity.Mounttheinstrumenthorizontallyattheheightofthe
requested switching point.
Mount the source container VEGASOURCE displaced by 90° in order
to get the widest possible radiation angle.
When the sensor is covered by the medium, the radiation damping
is considerably stronger - hence, the switching point is all the more
reliable.
If the max. ambient temperature is exceeded, you must take suitable
measures to protect the instrument against overheating.
You can protect the instrument by providing a suitable insulation
against the heat or mounting the instrument further away from the
heat source.
Make sure these measures are taken into account already in the plan-
ning stage. If you want to carry out such measures later on, contact
our specialists to ensure that the accuracy of the application is not
impaired.
Ifthesemeasuresarenotsucienttomaintainthemax.ambient
temperature, you could consider using the water or air cooling system
weoerforPOINTRAC31.
The cooling system must also be included in the calculations for the
measuring point. Contact our specialists regarding the dimensioning
of the cooling.
Bulk solids with low
density
Protection against heat

20
5 Connecting to power supply
POINTRAC 31 • Four-wire 8/16 mA/HART
39411-EN-200522
5 Connecting to power supply
5.1 Preparing the connection
Always keep in mind the following safety instructions:
• The electrical connection must only be carried out by trained,
qualiedpersonnelauthorisedbytheplantoperator.
• If overvoltage surges are expected, overvoltage arresters should
be installed.
Warning:
Onlyconnectordisconnectinde-energizedstate.
In this case, the instrument is designed in protection class I.To main-
tain this protection class, it is absolutely necessary that the ground
conductor be connected to the internal ground terminal.Take note of
the national installation regulations.
Supply voltage and current signal are carried on separate connection
cables if reliable separation is required. The supply voltage range can
dierdependingontheinstrumentversion.
Thedataforpowersupplyarespeciedinchapter"Technical data".
General requirements
• Make sure that the cable used has the required temperature resist-
anceandresafetyformax.occurringambienttemperature
• 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.
• Unusedcableglandsdonotoersucientprotectionagainst
moisture and must be replaced by blind plugs.
Voltage supply
For power supply, an approved, three-wire installation cable with PE
conductor is required.
Signal cable
The 8/16 mA current output is connected with standard two-wire
cable without shielding. If electromagnetic interference is expected
which is above the test values of EN 61326 for industrial areas,
shielded cable should be used.
Metric threads
In the case of instrument housings with metric thread, the cable
glands are screwed in at the factory.They are sealed with plastic
plugs as transport protection.
You have to remove these plugs before electrical connection.
NPT thread
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
Safety instructions
Voltage supply via mains
voltage
Select connection cable
Cable glands