Endress+Hauser FOUNDATION Fieldbus Micropilot FMR51 Technical specifications

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Brief Operating Instructions

Micropilot FMR51, FMR52

FOUNDATION Fieldbus

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

KA01125F/00/EN/03.22-00

71575725

2022-08-01

Associated documentation Micropilot FMR51, FMR52 FOUNDATION Fieldbus

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

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 FOUNDATION Fieldbus 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 FOUNDATION Fieldbus

4 Endress+Hauser

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 FOUNDATION Fieldbus 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 FOUNDATION Fieldbus

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 FOUNDATION Fieldbus 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 FOUNDATION Fieldbus

8 Endress+Hauser

5 Mounting

5.1 Mounting location

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 FOUNDATION Fieldbus Mounting

Endress+Hauser 9

5.2 Orientation

5.3 Internal vessel fittings

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

A0016890

Mounting Micropilot FMR51, FMR52 FOUNDATION Fieldbus

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.

2. . tan

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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