Endress+Hauser PROFIBUS PA Micropilot FMR56 Technical specifications

Products Solutions Services
Brief Operating Instructions
Micropilot FMR56, FMR57
PROFIBUS PA
Free space radar
These Instructions are Brief Operating Instructions; they are
not a substitute for the Operating Instructions pertaining to
the device.
Detailed information about the device can be found in the
Operating Instructions and the other documentation:
Available for all device versions via:
• Internet: www.endress.com/deviceviewer
• Smart phone/tablet: Endress+Hauser Operations App
KA01131F/00/EN/04.22-00
71575732
2022-08-01

Associated documentation Micropilot FMR56, FMR57 PROFIBUS PA
2 Endress+Hauser
1 Associated documentation
Order code:
Ext. ord. cd.:
Ser. no.:
www.endress.com/deviceviewer Endress+Hauser
Operations App
XXXXXXXXXXXX
XXXXX-XXXXXX
XXX.XXXX.XX
Serial number
1.
3.
2.
A0023555
2 About this document
2.1 Symbols used
2.1.1 Safety symbols
DANGER
This symbol alerts you to a dangerous situation. Failure to avoid this situation will result in
serious or fatal injury.

Micropilot FMR56, FMR57 PROFIBUS PA About this document
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WARNING
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
serious or fatal injury.
CAUTION
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
minor or medium injury.
NOTICE
This symbol contains information on procedures and other facts which do not result in
personal injury.
2.1.2 Electrical symbols
Protective earth (PE)
Ground terminals that must be connected to ground prior to establishing any other
connections.
The ground terminals are located on the inside and outside of the device.
• Interior ground terminal; protective earth is connected to the mains supply.
• Exterior ground terminal; device is connected to the plant grounding system.
2.1.3 Tool symbols
Tool symbols
Flat-blade screwdriver
Allen key
Open-ended wrench
2.1.4 Symbols for certain types of information and graphics
Permitted
Procedures, processes or actions that are permitted
Forbidden
Procedures, processes or actions that are forbidden
Tip
Indicates additional information
Reference to documentation
Reference to graphic
Notice or individual step to be observed

Basic safety instructions Micropilot FMR56, FMR57 PROFIBUS PA
4 Endress+Hauser
1.
,
2.
,
3.
Series of steps
Result of a step
Visual inspection
1, 2, 3, ...
Item numbers
A, B, C, ...
Views
3 Basic safety instructions
3.1 Requirements for the personnel
Personnel must meet the following requirements to perform their tasks:
‣Trained, qualified specialists must have a relevant qualification for this specific function
and task.
‣Personnel must be authorized by the plant owner/operator.
‣They must be familiar with national regulations.
‣Before starting work, personnel must read and understand the instructions in the manual
and supplementary documentation as well as the certificates (depending on the
application).
‣They must follow instructions and comply with general policies.
3.2 Intended use
Application and media
The measuring device described in these Operating Instructions is intended for continuous,
non-contact level measurement primarily in bulk solids. Because of its operating frequency of
approx. 26 GHz, a maximum radiated pulsed power of 23.3 mW and an average power output
of 0.076 mW, the device can also be used without restrictions outside closed metal vessels
(for example, above basins, open channels or heaps). Operation is completely harmless to
humans and animals.
If the limit values specified in the "Technical data" and the conditions listed in the instructions
and additional documentation are observed, the measuring device may be used only for the
following measurements:
‣Measured process variables: level, distance, signal strength
‣Calculated process variables: volume or mass in vessels of any shape; flow rate through
measuring weirs or channels (calculated based on the level using the linearization
functionality)

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To ensure that the measuring device remains in proper condition for the operation time:
‣Use the measuring device only for media to which the process-wetted materials are
sufficiently resistant.
‣Observe the limit values in the "Technical data".
Incorrect use
The manufacturer is not liable for damage caused by using the device incorrectly or for
purposes for which it was not intended.
Clarification in the case of borderline cases:
‣For special fluids and fluids for cleaning, Endress+Hauser is glad to provide assistance in
verifying the corrosion resistance of fluid-wetted materials, but does not accept any
warranty or liability.
Residual risks
Due to heat transfer from the process as well as power loss in the electronics, the temperature
of the electronics housing and the assemblies contained therein (e.g. display module, main
electronics module and I/O electronics module) may rise up to 80 °C (176 °F). When in
operation, the sensor may reach a temperature close to the medium temperature.
Danger of burns from contact with surfaces!
‣In the event of elevated fluid temperatures, ensure protection against contact to prevent
burns.
3.3 Workplace safety
When working on and with the device:
‣Wear the required personal protective equipment as per national regulations.
3.4 Operational safety
Risk of injury!
‣Operate the device only if it is in proper technical condition, free from errors and faults.
‣The operator is responsible for ensuring trouble-free operation of the device.
Hazardous area
To eliminate danger to persons or the facility when the device is used in the hazardous area
(e.g. explosion protection):
‣Check the nameplate to verify if the device ordered can be put to its intended use in the
hazardous area.
‣Observe the specifications in the separate supplementary documentation that is an integral
part of these instructions.
3.5 Product safety
This measuring device is designed in accordance with good engineering practice to meet state-
of-the-art safety requirements, has been tested, and left the factory in a condition in which it
is safe to operate. It meets the general safety standards and legal requirements.

Incoming acceptance and product identification Micropilot FMR56, FMR57 PROFIBUS PA
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NOTICE
Loss of degree of protection by opening of the device in humid environments
‣If the device is opened in a humid environment, the degree of protection indicated on the
nameplate is no longer valid. This may also impair the safe operation of the device.
3.5.1 CE mark
The measuring system meets the legal requirements of the applicable EU directives. These are
listed in the corresponding EU Declaration of Conformity together with the standards applied.
The manufacturer confirms successful testing of the device by affixing to it the CE mark.
3.5.2 EAC conformity
The measuring system meets the legal requirements of the applicable EAC guidelines. These
are listed in the corresponding EAC Declaration of Conformity along with the standards
applied.
The manufacturer confirms successful testing of the device by affixing to it the EAC mark.
4 Incoming acceptance and product identification
4.1 Incoming acceptance
Check the following during incoming acceptance:
• Are the order codes on the delivery note and the product sticker identical?
• Are the goods undamaged?
• Does the data on the nameplate match the order specifications on the delivery note?
• Is the DVD with the operating tool present?
If required (see nameplate), have the Safety Instructions (XA) been provided?
If one of these conditions is not met, please contact your Endress+Hauser sales office.
4.2 Storage and transport
4.2.1 Storage conditions
• Permitted storage temperature: –40 to +80 °C (–40 to +176 °F)
• Use original packaging.

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4.2.2 Transporting the product to the measuring point
NOTICE
Housing or antenna horn may become damaged or break off.
Risk of injury!
‣Transport the measuring device to the measuring point in its original packaging or by the
process connection.
‣Always secure lifting equipment (slings, eyes, etc.) to the process connection and never to
the electronic housing or antenna horn. Pay attention to the center of gravity of the device
so that it does not tilt or slip unintentionally.
‣Follow the safety instructions and transport conditions for devices over 18 kg (39.6 lbs),
(IEC61010).
A0016875

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5 Mounting
5.1 Mounting location
A
123
A0016883
A Recommended distance from wall to nozzle outer edge ~ 1/6 of the vessel diameter. However, the
device must not under any circumstances be mounted closer than 20 cm (7.87 in) to the vessel wall. If
the vessel wall is not smooth (corrugated iron, welding seams, joints, etc.), it is advisable to maintain
the greatest possible distance from the wall. Where necessary, use an alignment unit to avoid
interference reflections from the vessel wall .
1 Use of a weather protection cover; protection from direct sunlight or rain
2 Installation in the center, interference can cause signal loss
3 Do not install above the filling curtain
In applications with strong dust emissions, the integrated purge air connection can
prevent the antenna from becoming clogged.

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5.2 Orientation
5.3 Internal vessel fittings
α
β
A0018946
Avoid the location of internal fittings (limit switches, temperature sensors, struts etc.) inside
the signal beam. Take into account the beam angle.

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5.4 Avoiding interference echoes
β
α
A0016889
Metal orifice plates installed at an angle to scatter the radar signals help prevent interference
echoes.
5.5 Beam angle
The beam angle is defined as the angle α at which the energy density of the radar waves
reaches half the value of the maximum energy density (3dB width). Microwaves are also
emitted outside the signal beam and can be reflected off interfering installations.

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a
D
W
a
D_
=2
2. . tan
W
A0016891
 1 Relationship between beam angle α, distance D and beam diameter W
The beamwidth diameter W depends on the beam angle α and the distance D.
FMR56
Antenna size 80 mm (3 in) 100 mm (4 in)
Beam angle α 10° 8°
Distance (D) Beam diameter (W)
3 m (9.8 ft) 0.53 m (1.7 ft) 0.42 m (1.4 ft)
6 m (20 ft) 1.05 m (3.4 ft) 0.84 m (2.8 ft)
9 m (30 ft) 1.58 m (5.2 ft) 1.26 m (4.1 ft)
12 m (39 ft) 2.1 m (6.9 ft) 1.68 m (5.5 ft)
15 m (49 ft) 2.63 m (8.6 ft) 2.10 m (6.9 ft)
20 m (66 ft) 3.50 m (11 ft) 2.80 m (9.2 ft)
25 m (82 ft) 4.37 m (14 ft) 3.50 m (11 ft)
30 m (98 ft) 5.25 m (17 ft) 4.20 m (14 ft)

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FMR57 - horn antenna
Antenna size 80 mm (3 in) 100 mm (4 in)
Beam angle α 10° 8°
Distance (D) Beam diameter W
5 m (16 ft) 0.87 m (2.9 ft) 0.7 m (2.3 ft)
10 m (33 ft) 1.75 m (5.7 ft) 1.4 m (4.6 ft)
15 m (49 ft) 2.62 m (8.6 ft) 2.1 m (6.9 ft)
20 m (66 ft) 3.50 m (11 ft) 2.80 m (9.2 ft)
30 m (98 ft) 5.25 m (17 ft) 4.20 m (14 ft)
40 m (131 ft) 7.00 m (23 ft) 5.59 m (18 ft)
50 m (164 ft) 8.75 m (29 ft) 6.99 m (23 ft)
FMR57 - parabolic antenna
Antenna size 200 mm (8 in) 250 mm (10 in)
Beam angle α 4° 3.5°
Distance (D) Beam diameter W
5 m (16 ft) 0.35 m (1.1 ft) 0.30 m (1 ft)
10 m (33 ft) 0.70 m (2.3 ft) 0.61 m (2 ft)
15 m (49 ft) 1.05 m (3.4 ft) 0.92 m (3 ft)
20 m (66 ft) 1.40 m (4.6 ft) 1.22 m (4 ft)
30 m (98 ft) 2.10 m (6.9 ft) 1.83 m (6 ft)
40 m (131 ft) 2.79 m (9.2 ft) 2.44 m (8 ft)
50 m (164 ft) 3.50 m (11 ft) 3.06 m (10 ft)
60 m (197 ft) 4.19 m (14 ft) 3.70 m (12 ft)
70 m (230 ft) 4.90 m (16 ft) 4.28 m (14 ft)
5.6 Free-space installation in vessel
5.6.1 Horn antenna with slip-on flange (FMR56)
Alignment
If using the Micropilot with a slip-on flange in explosion-hazardous areas, observe all the
specifications in the relevant Safety Instructions (XA).

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• Align the antenna perpendicular to the product surface.
Optionally, an adjustable flange seal (accessory) can be used for alignment
• A marking is provided on the gland to aid the alignment. This marking must be aligned
towards the tank wall as much as possible.
90°
90°
90°
90°
90°
A0019434
Depending on the device version the marking may be a circle or two parallel lines.
Information concerning nozzles
H
øD
A0016868
 2 Nozzle diameter and height for horn antennas with slip-on flange
ØDMaximum nozzle height Hmax
80 mm (3 in) 300 mm (11.8 in)
100 mm (4 in) 400 mm (15.8 in)
150 mm (6 in) 500 mm (19.7 in)

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5.6.2 Horn antenna with mounting bracket (FMR56)
A0016865
 3 Mounting the horn antenna with a mounting bracket
Using the mounting bracket, position the antenna so that it is perpendicular to the product
surface.
NOTICE
There is no conductive connection between the mounting bracket and transmitter
housing.
Risk of electrostatic charge.
‣Integrate the mounting bracket in the local potential equalization system.
5.6.3 Horn antenna (FMR57)
Alignment
• Ideally, the horn antenna should be installed vertically. To avoid interference reflections or
for optimum alignment in the vessel, the Micropilot can be swiveled by 15° in all directions
with the optional alignment device.
• A marking is provided on the gland to aid the alignment. This marking must be aligned
towards the tank wall as much as possible.

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90°
90°
90°
90°
90°
A0019434
Depending on the device version the marking may be a circle or two parallel lines.
Information concerning nozzles
The horn antenna should project out of the nozzle. If this is not possible for mechanical
reasons, larger nozzle heights can be accepted.
Hmax
A0016825
 4 Nozzle height for horn antenna (FMR57)
Antenna Maximum nozzle height Hmax
(valid for antennas without an antenna extension)
Horn 80mm/3" 260 mm (10.2 in)
Horn 100mm/4" 480 mm (18.9 in)
Please contact the manufacturer's support service for applications with nozzles that are
higher than indicated in the table.

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Information concerning threaded connections
For devices with a threaded connection, it may be necessary - depending on the antenna
size - to first disassemble the horn and then mount it again after screwing in the device.
• Tighten by the hexagonal nut only.
• Tool: open-ended wrench 60 mm
• Maximum permissible torque: 60 Nm (44 lbf ft)
5.6.4 Parabolic antenna (FMR57)
Alignment
Ideally, the parabolic antenna should be installed vertically. To avoid interference reflections
or for optimum alignment in the vessel, the Micropilot can be swiveled by 15 °° in all directions
using the optional alignment unit.
Information concerning nozzles
• Case 1: Ideally, the parabolic antenna should project fully out of the nozzle (1). Particularly
when using the alignment device, it is important to ensure that the parabolic reflector is
projecting out of the nozzle/ceiling so as not to inhibit alignment.
• Case 2: For applications with higher nozzles, it may be necessary to install the parabolic
antenna completely in the nozzle (2).
The maximum height of the nozzle ( Hmax) to the surface of the parabolic antenna should
not be greater than 500 mm (19.7 in). Interfering edges within the nozzle should be
avoided.
H
Hmax
øD
12
A0016827
 5 Nozzle mounting of Micropilot FMR57 with parabolic antenna
1 Antenna completely projects out of the nozzle
2 Antenna completely inside the nozzle

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Antenna Antenna diameter DNozzle height H for Case 1 Maximum nozzle height Hmax for
Case 2
Parabolic antenna
200mm/8"
173 mm (6.81 in) < 50 mm (1.97 in) 500 mm (19.7 in)
Parabolic antenna
250mm/10"
236 mm (9.29 in) < 50 mm (1.97 in) 500 mm (19.7 in)
Examples for installation with small flange
If the flange is smaller than the parabolic reflector, the device can be mounted in one of the
following ways:
• Standard installation, the parabolic reflector must be dismantled in this case
• Installation with hinged flange
Standard installation
H
øD
1
A0018874
1 Nozzle
Antenna size ØD H
(without antenna extension)
200 mm (8 in) 173 mm (6.81 in) < 50 mm (1.96 in)
250 mm (10 in) 236 mm (9.29 in) < 50 mm (1.96 in)
Installation with hinged flange
The length of the antenna must be taken into account in the case of hinged flanges.

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A0018878
5.6.5 Alignment unit for FMR57
An angle of inclination of up to 15 °° in all directions can be set for the antenna axis using the
alignment unit. The alignment unit is used to optimally align the radar beam with the bulk
solid.
±15°
±15°
A0016931
 6 Micropilot FMR57 with alignment unit

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Aligning the antenna axis
1. Release the screws
2. Align the antenna axis (up to max. ±15 ° possible in all directions)
3. Tighten the screws with 15 Nm (11 lbf ft)
5.6.6 Integrated purge air connection for FMR57
In applications with strong dust emissions, the integrated purge air connection can prevent
the antenna from becoming clogged. Pulse operation is recommended.
1
A0016932
 7 Micropilot FMR57 with purge air connection
1 Purge air connection NPT¼ or G¼
Purge air pressure range
•Pulse operation :
max. 6 bar (87 psi)
•Continuous operation:
200 to 500 mbar (3 to 7.25 psi)
• Always use dry purge air
• In general, only purge to the extent necessary as excess purging can cause mechanical
damage (abrasion)

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5.7 Container with heat insulation
1
2
A0032207
If process temperatures are high, the device should be included in the usual container
insulation system (2) to prevent the electronics from heating as a result of thermal radiation
or convection. The insulation should not be higher than the neck of the device (1).
5.8 Turning the transmitter housing
To provide easier access to the connection compartment or display module, the transmitter
housing can be turned:
max. 350°
8 mm
8 mm
2. 3.1.
A0032242
1. Unscrew the securing screw using an open-ended wrench.
2. Rotate the housing in the desired direction.
3. Tighten the securing screw (1.5 Nm for plastic housing; 2.5 Nm for aluminum or
stainless steel housing).