SICK LFR User manual

GB
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 qualication. 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, qualied 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 specications 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-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.
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 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.
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 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.
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 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.
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 fullled.
For operation outside of closed vessels, the following conditions must
be fullled:
• 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 dierent 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 Forangleofinclination,innitelyvariable
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°, innitely variable
• Double chamber housing
– Angle of inclination in two steps 0° and 90°
– Angle of inclination 90°, innitely variable
Fig. 2: Adjustment of the angle of inclination

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2 Mounting
LFR • Two-wire 4 … 20 mA/HART
62270-EN-191108
Fig.3:Turningbyfasteninginthecentre
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 inuence 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:Mountingoftheradarsensoronroundvesseltops
Polarisation
Installation position

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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:Mountingoftheradarsensoronvesselswithconicalbottom

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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

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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:Electronicsandconnectioncompartment-singlechamberhousing
1 Voltagesupply,signaloutput
2 Fordisplayandadjustmentmoduleorinterfaceadapter
3 Forexternaldisplayandadjustmentunit
4 Groundterminalforconnectionofthecablescreening
Electronics and connec-
tion compartment

11
4 Set up with the display and adjustment module
LFR • Two-wire 4 … 20 mA/HART
62270-EN-191108
4 Set up with the display and adjustment
module
4.1 Insert display and adjustment module
The display and adjustment module can be inserted into the sensor
and removed again at any time. You can choose any one of four dier-
ent positions - each displaced by 90°. It is not necessary to interrupt
the power supply.
Proceed as follows:
1. Unscrew the housing lid
2. Place the display and adjustment module on the electronics in the
desired position and turn it to the right until it snaps in.
3. Screw housing lid with inspection window tightly back on
Disassembly is carried out in reverse order.
The display and adjustment module is powered by the sensor, an ad-
ditional connection is not necessary.
Fig.9:Insertionofthedisplayandadjustmentmodulewithsinglechamber
housing
Note:
If you intend to retrot the instrument with a display and adjustment
module for continuous measured value indication, a higher lid with an
inspection glass is required.
4.2 Parameter adjustment - Quick setup
To quickly and easily adapt the sensor to the application, select
the menu item "Quick setup" in the start graphic on the display and
adjustment module.

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4 Set up with the display and adjustment module
LFR • Two-wire 4 … 20 mA/HART
62270-EN-191108
Select the individual menu items with the [->] key. Carry out the steps
in the below sequence.
1. Measurement loop name
In the rst menu item you assign a suitable measurement loop name.
Permitted are names with max. 19 characters.
2. Medium
In this menu item you select the medium.The selection comprises
liquids with dierent properties.
3. Application
In this menu item you determine the application.
4. Vessel form
In this menu item you specify the for of the vessel bottom and top.
5. Vessel height/Measuring range
In this menu item you enter the height of the vessel and hence the
active measuring range.
6. Max. adjustment
In this menu item you carry out the max. adjustment.
Enter the measuring distance for 100 % lling.
Quick setup process

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4 Set up with the display and adjustment module
LFR • Two-wire 4 … 20 mA/HART
62270-EN-191108
7. Min. adjustment
In this menu item you carry out the min. adjustment.
Enter the measuring distance for 0 % lling.
8. Termination
"Quicksetupterminatedsuccessfully" is displayed briey.
Information:
The echo curve of setup was stored automatically during the quick
setup.
The quick setup is nished.
The return to the measured value indication is carried out through the
[->] or [ESC] keys or automatically after 3 s
The menu "Extended adjustment" is available for further settings. Im-
portant functions are described in the following chapter. You can nd a
complete description of all functions of the "Extended adjustment" in
the operating instructions manual of LFR.
4.3 Menu overview
Menu item Parameter Default setting
Measurement
loop name
Sensor
Units Distance in m
Temperature in °C
Application Medium Water based
Application Storage tank
Vessel top/Vessel
bottom
Dished form/Dished form
Vessel height/
Measuring range
30 m
Adjustment Max. adjustment 0,000 m(d)
100.00 %
Min. adjustment 30 m
0.00 %
Damping Integration time 0.0 s
Extended adjustment
Setup

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4 Set up with the display and adjustment module
LFR • Two-wire 4 … 20 mA/HART
62270-EN-191108
Menu item Parameter Default setting
Current output Current output -
Mode
Output characteristics
4 … 20 mA
Reaction when malfunctions occur
≤ 3.6 mA
Current output -
Min./Max.
3.8 mA
20.5 mA
Lock adjustment Released
Menu item Default setting
Menu language Order-specic
Displayed value 1 Filling height in %
Displayed value 2 Electronics temperature in °C
Backlight Switched on
Menu item Parameter Default setting
Sensor status -
Peak value indi-
cator
Distance -
Measurement re-
liability
-
Peak values, ad-
ditional
Temperature -
Curve display Echo curve -
False signal sup-
pression
-
Simulation Percent
Echo curve mem-
ory
Percent
Menu item Parameter Default setting
Date/Time Actual date/Actual time
Reset -
Copy instru-
ment settings
-
Scaling Scaling size Volume in l
Scaling format 0 % corresponds to 0 l
100 % corresponds to 0 l
Current out-
put 1
Current output - Meas. vari-
able
Lin. percent - Level
Current output - Adjustment 0 … 100 % correspond to
4 … 20 mA
Display
Diagnostics
Additional adjustments

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4 Set up with the display and adjustment module
LFR • Two-wire 4 … 20 mA/HART
62270-EN-191108
Menu item Parameter Default setting
Current out-
put 2
Current output - Meas. vari-
able
Lin. percent - Level
Current output - Adjustment 0 … 100 % correspond to
4 … 20 mA
False signal
suppression
-
Linearisation Linear
HART mode Address 0
Special pa-
rameters
-
Menu item Parameter
Device name Device name
Instrument version Hardware and software version
Factory calibration date Date
Sensor characteristics Order-specic characteristics
Info

16
5 Supplement
LFR • Two-wire 4 … 20 mA/HART
62270-EN-191108
5 Supplement
5.1 Technical data
Note for approved instruments
The technical data in the respective safety instructions which are included in delivery are valid for
approved instruments (e.g. with Ex approval). These data can dier from the data listed herein, for
example regarding the process conditions or the voltage supply.
All approval documents can be downloaded from our homepage.
Electromechanical data - version IP66/IP67 and IP66/IP68 (0.2 bar)
Options of the cable entry
ƲCable entry M20 x 1.5; ½ NPT
ƲCable gland M20 x 1.5; ½ NPT (cable ø see below table)
ƲBlind plug M20 x 1.5; ½ NPT
ƲClosing cap ½ NPT
Material ca-
ble gland
Material seal
insert
Cable diameter
4.5 … 8.5 mm 5 … 9 mm 6 … 12 mm 7 … 12 mm 10 … 14 mm
PA NBR – ● ● –●
Brass, nickel-
plated
NBR ● ● ● – –
Stainless
steel
NBR –● ● –●
Wire cross-section (spring-loaded terminals)
ƲMassive wire, stranded wire 0.2 … 2.5 mm² (AWG 24 … 14)
ƲStranded wire with end sleeve 0.2 … 1.5 mm² (AWG 24 … 16)
Voltage supply
Operating voltage UB12 … 35 V DC
Operating voltage UBwith lighting
switched on
18 … 35 V DC
Reverse voltage protection Integrated
Permissible residual ripple
Ʋfor 12 V < UB< 18 V ≤ 0.7 Ve (16 … 400 Hz)
Ʋfor 18 V < UB< 35 V ≤ 1 Ve (16 … 400 Hz)
Load resistor
ƲCalculation (UB- Umin)/0.022 A
Ʋ Example - UB= 24 V DC (24 V - 12 V)/0.022 A = 545 Ω

17
Notes
LFR • Two-wire 4 … 20 mA/HART
62270-EN-191108

18
Notes
LFR • Two-wire 4 … 20 mA/HART
62270-EN-191108

19
Notes
LFR • Two-wire 4 … 20 mA/HART
62270-EN-191108

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SICK AG | Waldkirch | Germany | www.sick.com
62270-EN-191108
8025049/2019-08-11 · VS · Printed in Germany (2019-11) · Subject to change without notice
The specifed product features and technical data do not represent any guarantee