SICK LFR Manuale utente
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QUICK SETUP GUIDE
LFR
Two-wire 4 … 20 mA/HART
2
Contents
LFR • Two-wire 4 … 20 mA/HART
62270-EN-191108
Contents
1 For your safety ......................................................................................................................... 3
1.1 Authorised personnel ....................................................................................................... 3
1.2 Appropriate use................................................................................................................ 3
1.3 Warning about incorrect use............................................................................................. 3
1.4 General safety instructions............................................................................................... 3
1.5 EU conformity................................................................................................................... 4
1.6 NAMUR recommendations .............................................................................................. 4
1.7 Radio license for Europe .................................................................................................. 4
2 Mounting................................................................................................................................... 6
2.1 Mounting preparations, mounting strap............................................................................ 6
2.2 Mounting instructions ....................................................................................................... 7
3 Connecting to power supply................................................................................................... 9
3.1 Connecting....................................................................................................................... 9
3.2 Wiring plan, single chamber housing.............................................................................. 10
4 Set up with the display and adjustment module ................................................................ 11
4.1 Insert display and adjustment module............................................................................ 11
4.2 Parameter adjustment - Quick setup .............................................................................. 11
4.3 Menu overview ............................................................................................................... 13
5 Supplement ............................................................................................................................ 16
5.1 Technical data ................................................................................................................ 16
Information:
This quick setup guide enables quick setup and commissioning of
your instrument.
You can nd supplementary information in the corresponding, more
detailed Operating Instructions Manual as well as the Safety Manual
that comes with instruments with SIL qualication. These manuals are
available on our homepage.
Operating instructions LFR - Two-wire 4 … 20 mA/HART:
Document-ID 62272
Editing status of the quick setup guide: 2019-11-07
3
1 For your safety
LFR • Two-wire 4 … 20 mA/HART
62270-EN-191108
1 For your safety
1.1 Authorised personnel
All operations described in this documentation must be carried out
only by trained, qualied personnel authorised by the plant operator.
During work on and with the device, the required personal protective
equipment must always be worn.
1.2 Appropriate use
LFR 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 specications in the operating instructions
manual as well as possible supplementary instructions.
1.3 Warning about incorrect use
Inappropriate or incorrect use of this product can give rise to applica-
tion-specic hazards, e.g. vessel overll 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.
1.4 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.
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 modications are explicitly forbidden. For safety
reasons, only the accessory specied by the manufacturer must be
used.
To avoid any danger, the safety approval markings and safety tips on
the device must also be observed.
The low transmitting power of the radar sensor is far below the inter-
nationally approved limits. No health impairments are to be expected
4
1 For your safety
LFR • Two-wire 4 … 20 mA/HART
62270-EN-191108
with intended use.The band range of the transmission frequency can
be found in chapter "Technical data".
1.5 EU conformity
The device fulls the legal requirements of the applicable EU direc-
tives. By axing the CE marking, we conrm the conformity of the
instrument with these directives.
The EU conformity declaration can be found on our homepage.
1.6 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 fulls 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.
1.7 Radio license for Europe
The instrument was tested according to the latest issue of the follow-
ing harmonized standards:
• EN 302372 - Tank Level Probing Radar
• EN 302729 - Level Probing Radar
It is hence approved for use inside and outside closed vessels in
countries of the EU.
Use is also approved in EFTA countries, provided the respective
standards have been implemented.
For operation inside of closed vessels, points a to f in annex E of
EN 302372 must be fullled.
For operation outside of closed vessels, the following conditions must
be fullled:
• The instrument must be stationary mounted and the antenna
directed vertically downward
• The instrument may only be used outside closed vessels in the
version with G1½ or 1½ NPT thread with integrated horn antenna.
• The mounting location must be at least 4 km away from radio
astronomy stations, unless special permission was granted by the
responsible national approval authority
• When installed within 4 to 40 km of a radio astronomy station,
the instrument must not be mounted higher than 15 m above the
ground.
5
1 For your safety
LFR • Two-wire 4 … 20 mA/HART
62270-EN-191108
A list of the respective radio astronomy stations can be found in chap-
ter "Appendix" of the operating instructions.
6
2 Mounting
LFR • Two-wire 4 … 20 mA/HART
62270-EN-191108
2 Mounting
2.1 Mounting preparations, mounting strap
The mounting strap is supplied unassembled (optionally) and must be
screwed to the sensor before setup with three hexagon socket screws
M5 x 10 and spring washers. Max. torque, see chapter "Technical
data". Required tools: Allen wrench size 4.
There are two dierent variants of screwing the strap to the sensor,
see following illustration:
1 2
Fig. 1: Mounting strap for screwing to the sensor
1 For angle of inclination in steps
2 Forangleofinclination,innitelyvariable
Depending on the selected variant, the sensor can be rotated in the
strap:
• Single chamber housing
– Angle of inclination in three steps 0°, 90° and 180°
– Angle of inclination 180°, innitely variable
• Double chamber housing
– Angle of inclination in two steps 0° and 90°
– Angle of inclination 90°, innitely variable
Fig. 2: Adjustment of the angle of inclination
7
2 Mounting
LFR • Two-wire 4 … 20 mA/HART
62270-EN-191108
Fig.3:Turningbyfasteninginthecentre
2.2 Mounting instructions
Radar sensors for level measurement emit electromagnetic waves.
The polarization is the direction of the electrical component of these
waves.
The polarization direction is marked by a nose on the housing, see
following drawing:
1
Fig. 4: Position of the polarisation
1 Nose for marking the direction of polarisation
Note:
When the housing is rotated, the direction of polarization changes
and hence the inuence of the false echo on the measured value.
Please keep this in mind when mounting or making changes later.
When mounting the sensor, keep a distance of at least 200 mm
(7.874 in) from the vessel wall. If the sensor is installed in the center
of dished or round vessel tops, multiple echoes can arise. However,
these can be suppressed by an appropriate adjustment (see chapter
"Setup").
If you cannot maintain this distance, you should carry out a false
signal suppression during setup. This applies particularly if buildup on
the vessel wall is expected. In such cases, we recommend repeating
the false signal suppression at a later date with existing buildup.
> 200 mm
(7.87
")
Fig.5:Mountingoftheradarsensoronroundvesseltops
Polarisation
Installation position
8
2 Mounting
LFR • Two-wire 4 … 20 mA/HART
62270-EN-191108
In vessels with conical bottom it can be advantageous to mount the
sensor in the centre of the vessel, as measurement is then possible
down to the bottom.
Fig.6:Mountingoftheradarsensoronvesselswithconicalbottom
9
3 Connecting to power supply
LFR • Two-wire 4 … 20 mA/HART
62270-EN-191108
3 Connecting to power supply
3.1 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.
Information:
The terminal block is pluggable and can be removed from the
electronics.To do this, lift the terminal block with a small screwdriver
and pull it out. When reinserting the terminal block, you should hear it
snap in.
Proceed as follows:
1. Unscrew the housing lid
2. If a display and adjustment module is installed, remove it by turn-
ing it slightly to the left
3. Loosen compression nut of the cable gland and remove blind
plug
4. Remove approx. 10 cm (4 in) of the cable mantle, strip approx.
1 cm (0.4 in) of insulation from the ends of the individual wires
5. Insert the cable into the sensor through the cable entry
Fig. 7: Connection steps 5 and 6
6. Insert the wire ends into the terminals according to the wiring plan
Information:
Solid cores as well as exible cores with wire end sleeves are insert-
ed directly into the terminal openings. In case of exible cores without
end sleeves, press the terminal from above with a small screwdriver,
the terminal opening is then free.When the screwdriver is released,
the terminal closes again.
You can nd further information on the max. wire cross-section under
"Technical data - Electromechanical data".
7. Check the hold of the wires in the terminals by lightly pulling on
them
8. Connect the screen to the internal ground terminal, connect the
external ground terminal to potential equalisation
Connection technology
Connection procedure
10
3 Connecting to power supply
LFR • Two-wire 4 … 20 mA/HART
62270-EN-191108
9. Tighten the compression nut of the cable entry gland. The seal
ring must completely encircle the cable
10. Reinsert the display and adjustment module, if one was installed
11. Screw the housing lid back on
The electrical connection is nished.
3.2 Wiring plan, single chamber housing
The following illustration applies to the non-Ex as well as to the Ex-ia
version.
5
12
+
( ) (-)
678
4...20mA
2
3
4
1
Fig.8:Electronicsandconnectioncompartment-singlechamberhousing
1 Voltagesupply,signaloutput
2 Fordisplayandadjustmentmoduleorinterfaceadapter
3 Forexternaldisplayandadjustmentunit
4 Groundterminalforconnectionofthecablescreening
Electronics and connec-
tion compartment
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