Endress+Hauser Micropilot FMR51 Technical specifications
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Brief Operating Instructions
Micropilot FMR51, FMR52
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
KA01129F/00/EN/04.22-00
71575729
2022-08-01
Associated documentation Micropilot FMR51, FMR52 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 FMR51, FMR52 PROFIBUS PA About this document
Endress+Hauser 3
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 FMR51, FMR52 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 in liquids, pastes and sludges. Due to its operating frequency
of approx. 26 GHz, a maximum radiated pulsed power of 5.7 mW and an average power
output of 0.015 mW(for the version with advanced dynamics: maximum pulsed power:
23.3 mW; average power output: 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)
Micropilot FMR51, FMR52 PROFIBUS PA Basic safety instructions
Endress+Hauser 5
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 FMR51, FMR52 PROFIBUS PA
6 Endress+Hauser
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.
Micropilot FMR51, FMR52 PROFIBUS PA Incoming acceptance and product identification
Endress+Hauser 7
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
Mounting Micropilot FMR51, FMR52 PROFIBUS PA
8 Endress+Hauser
5 Mounting
5.1 Mounting location
A
123
A0016882
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 15 cm (5.91 in) to the tank 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
Micropilot FMR51, FMR52 PROFIBUS PA Mounting
Endress+Hauser 9
5.2 Orientation
5.3 Internal vessel fittings
α
A0018944
Avoid the location of internal fittings (limit switches, temperature sensors, struts, vacuum
rings, heating coils, baffles etc.) inside the signal beam. Take into account the beam angle.
5.4 Avoiding interference echoes
α
A0016890
Mounting Micropilot FMR51, FMR52 PROFIBUS PA
10 Endress+Hauser
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.
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.
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