Endress+Hauser Levelflex FMP55 Technical specifications

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Brief Operating Instructions
Levelflex FMP55
HART
Guided wave 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
KA01060F/00/EN/19.22-00
71567029
2022-04-05

Associated documentation Levelflex FMP55 HART
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
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.

Levelflex FMP55 HART 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.
• Inner ground terminal; protective earth is connected to the mains supply.
• Outer ground terminal; device is connected to the plant grounding system.
2.1.3 Tool symbols
Flat-blade screwdriver
Allen key
Torx screwdriver
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 Levelflex FMP55 HART
4 Endress+Hauser
1.
,
2.
,
3.
Series of steps
Result of a step
Visual inspection
1, 2, 3, ...
Item numbers
A, B, C, ...
Views
2.1.5 Symbols on the device
Safety instructions
Observe the safety instructions contained in the associated Operating Instructions
Temperature resistance of the connection cables
Specifies the minimum value of the temperature resistance of the connection cables
3 Basic safety instructions
3.1 Requirements for personnel
The personnel must fulfill the following requirements for its tasks:
‣Trained, qualified specialists must have a relevant qualification for the specific function
and task
‣Are authorized by the plant owner/operator
‣Are familiar with federal/national regulations
‣Must have read and understood the instructions in the manual and supplementary
documentation
‣Follow instructions and comply with conditions
3.2 Intended use
Application and media
The measuring device described in this manual is intended only for the level and interface
measurement of liquids. Depending on the version ordered, the measuring device can also
measure potentially explosive, flammable, poisonous and oxidizing media.
If the limit values specified in the "Technical data" and the conditions listed in the manual and
additional documentation are observed, the measuring device may be used for the following
measurements only:
‣Measured process variables: level and/or interface height
‣Calculable process variables: volume or mass in any shape of vessel (calculated from the
level by the linearization functionality)

Levelflex FMP55 HART 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 have an
adequate level of resistance.
‣Observe the limit values in the "Technical data".
Incorrect use
The manufacturer is not liable for damage caused by improper or non-intended use.
Verification for 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 high medium 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 according to federal/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 the interference-free operation of the device.
Modifications to the device
Unauthorized modifications to the device are not permitted and can lead to unforeseeable
dangers:
‣If modifications are nevertheless required, consult with the manufacturer.
Repair
To ensure continued operational safety and reliability:
‣Carry out repairs on the device only if they are expressly permitted.
‣Observe federal/national regulations pertaining to the repair of an electrical device.
‣Use only original spare parts and accessories from the manufacturer.

Incoming acceptance and product identification Levelflex FMP55 HART
6 Endress+Hauser
Hazardous area
To eliminate danger to persons or the installation when the device is used in the hazardous
area (e.g. explosion protection, pressure vessel safety):
‣Check the nameplate to verify whether the ordered device can be put to its intended use in
the hazardous area.
‣Observe the specifications in the separate supplementary documentation, which is an
integral part of this manual.
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.
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?
• Do the nameplate data match the ordering information on the delivery note?
• If required (see nameplate): are the Safety Instructions (XA) provided?
If one of these conditions is not met, please contact your Endress+Hauser sales office.

Levelflex FMP55 HART Incoming acceptance and product identification
Endress+Hauser 7
4.2 Product identification
The device can be identified in the following ways:
• Nameplate specifications
• Extended order code with breakdown of the device features on the delivery note
‣Enter serial number from nameplates in W@M Device Viewer
(www.endress.com/deviceviewer)
 All of the information on the measuring device and on the scope of the technical
documentation pertaining to the device is displayed.
‣Enter the serial number from the nameplate in the Endress+Hauser Operations app or scan
the 2-D matrix code on the nameplate with the camera
 All of the information on the measuring device and on the scope of the technical
documentation pertaining to the device is displayed.
4.3 Storage and transport
4.3.1 Storage temperature
• Permitted storage temperature: –40 to +80 °C (–40 to +176 °F)
• Use original packaging.
4.3.2 Transporting the product to the measuring point
LWARNING
Housing or rod may become damaged or pull 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.) at the process connection and never lift
the device by the electronic housing or probe. 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 weighing more than 18
kg (39.6 lbs) (IEC 61010).

Incoming acceptance and product identification Levelflex FMP55 HART
8 Endress+Hauser
A0013920
NOTICE
Transport lock in the FMP55 with coax probe
‣The coax tube is not firmly connected to the electronics housing in the FMP55 with coax
probe. It is fixed onto the mounting flange with two cable ties during transportation. These
cable ties must not be released during transportation or installation of the device to
prevent the spacer from sliding at the probe rod. They may only be removed immediately
before screwing the process connection flange into place.

Levelflex FMP55 HART Incoming acceptance and product identification
Endress+Hauser 9
1 2
4
3
A0015471

Mounting Levelflex FMP55 HART
10 Endress+Hauser
5 Mounting
5.1 Mounting requirements
5.1.1 Suitable mounting position
A0011281
 1 Mounting position of Levelflex FMP55
• Rod probes/rope probes: mount in the bypass/stilling well.
• Coax probes can be mounted at any distance from the wall.
• When mounting outdoors, a weather protection cover can be used to protect the device
against extreme weather conditions.
• Minimum distance from the end of the probe to the bottom of the vessel: 10 mm (0.4 in)
5.1.2 Securing the probe
Securing coax probes
For WHG approval: a support is required for probe lengths ≥ 3 m (10 ft).

Levelflex FMP55 HART Mounting
Endress+Hauser 11
A0012608
Coax probes can be secured (fixed) at any point in the ground tube.
5.2 Mounting the device
5.2.1 Mounting devices with a flange
If a seal is used to mount the device, use uncoated metal screws to ensure good electrical
contact between the process flange and the probe flange.
5.2.2 Mounting rope probes
NOTICE
Electrostatic discharge can damage the electronics.
‣Ground the housing before lowering the rope probe into the vessel.

Mounting Levelflex FMP55 HART
12 Endress+Hauser
*
A0012852
Pay attention to the following when introducing the rope probe into the vessel:
• Uncoil the rope slowly and lower it carefully into the vessel.
• Make sure the rope does not bend or buckle.
• Avoid uncontrolled swinging of the weight, as this could damage internal fittings in the
vessel.
5.2.3 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).

Levelflex FMP55 HART Mounting
Endress+Hauser 13
5.2.4 Turning the display
Opening the cover
2.
1.
3 mm
A0021430
1. Loosen the screw of the securing clamp of the electronics compartment cover using an
Allen key (3 mm) and turn the clamp 90 ° counterclockwise.
2. Unscrew the electronics compartment cover and check the cover seal; replace it if
necessary.
Turning the display module
1.
2.
A0036401
1. Pull out the display module with a gentle rotational movement.
2. Turn the display module to the desired position: Max. 8 × 45 ° in each direction.
3. Feed the coiled cable into the gap between the housing and main electronics module
and plug the display module into the electronics compartment until it engages.

Electrical connection Levelflex FMP55 HART
14 Endress+Hauser
Closing the cover of the electronics compartment
1.
2. 2.5 Nm
3 mm
A0021451
1. Screw down the cover of the electronics compartment.
2. Turn the securing clamp 90 ° in the clockwise direction and, using an Allen key (3 mm),
tighten the screw of the securing clamp on the electronics compartment cover with
2.5 Nm.
6 Electrical connection
6.1 Connecting requirements
6.1.1 Terminal assignment
Terminal assignment, 2-wire: 4 to 20 mA HART
1
+
2
-
A
1
+
2
-
B
1
2
33
A0036498
 2 Terminal assignment, 2-wire: 4 to 20 mA HART
A Without integrated overvoltage protection
B With integrated overvoltage protection
1 Connection 4 to 20 mA, HART passive: terminals 1 and 2, without integrated overvoltage protection
2 Connection 4 to 20 mA, HART passive: terminals 1 and 2, with integrated overvoltage protection
3 Terminal for cable shield

Levelflex FMP55 HART Electrical connection
Endress+Hauser 15
Block diagram, 2-wire: 4 to 20 mA HART
5
4
1
2
3
++
--
Y
I
6
1
2
A0036499
 3 Block diagram, 2-wire: 4 to 20 mA HART
1 Active barrier for power supply (e.g. RN221N); observe terminal voltage
2 Resistor for HART communication (≥ 250 Ω); observe maximum load
3 Connection for Commubox FXA195 or FieldXpert SFX350/SFX370 (via VIATOR Bluetooth modem)
4 Analog display unit; observe maximum load
5 Cable screen; observe cable specification
6 Measuring device
Terminal assignment, 2-wire: 4 to 20 mA HART, switch output
A
1
+
2
-
3
+
4
-
B
1
+
2
-
3
+
4
-
1
3
55
2
4
A0036500
 4 Terminal assignment, 2-wire: 4 to 20 mA HART, switch output
A Without integrated overvoltage protection
B With integrated overvoltage protection
1 Connection 4 to 20 mA, HART passive: terminals 1 and 2, without integrated overvoltage protection
2 Connection, switch output (open collector): terminals 3 and 4, without integrated overvoltage
protection
3 Connection, switch output (open collector): terminals 3 and 4, with integrated overvoltage protection
4 Connection 4 to 20 mA, HART passive: terminals 1 and 2, with integrated overvoltage protection
5 Terminal for cable shield

Electrical connection Levelflex FMP55 HART
16 Endress+Hauser
Block diagram, 2-wire: 4 to 20 mA HART, switch output
5
4
1
2
3
++
--
Y
I
6
1
2
+
-3
4
7
A0036501
 5 Block diagram, 2-wire: 4 to 20 mA HART, switch output
1 Active barrier for power supply (e.g. RN221N); observe terminal voltage
2 Resistor for HART communication (≥ 250 Ω); observe maximum load
3 Connection for Commubox FXA195 or FieldXpert SFX350/SFX370 (via VIATOR Bluetooth modem)
4 Analog display unit; observe maximum load
5 Cable screen; observe cable specification
6 Measuring device
7 Switch output (open collector)
Terminal assignment, 2-wire: 4 to 20 mA HART, 4 to 20 mA
A
1
+
2
-
3
+
4
-
B
1
+
2
-
3
+
4
-
1
3
55
2
4
A0036500
 6 Terminal assignment, 2-wire: 4 to 20 mA HART, 4 to 20 mA
A Without integrated overvoltage protection
B With integrated overvoltage protection
1 Connection current output 1, 4 to 20 mA HART passive: terminals 1 and 2, without integrated
overvoltage protection
2 Connection current output 2, 4 to 20 mA: terminals 3 and 4, without integrated overvoltage
protection
3 Connection current output 2, 4 to 20 mA: terminals 3 and 4, with integrated overvoltage protection
4 Connection current output 1, 4 to 20 mA HART passive: terminals 1 and 2, with integrated
overvoltage protection
5 Terminal for cable shield

Levelflex FMP55 HART Electrical connection
Endress+Hauser 17
Block diagram, 2-wire: 4 to 20 mAHART, 4 to 20 mA
5
4
1
2
3
++
--
Y
I
6
1
2
+
-3
4
7
+
-
8
A0036502
 7 Block diagram, 2-wire: 4 to 20 mAHART, 4 to 20 mA
1 Active barrier for power supply (e.g. RN221N), current output 1; observe terminal voltage
2 Resistor for HART communication (≥ 250 Ω); observe maximum load
3 Connection for Commubox FXA195 or FieldXpert SFX350/SFX370 (via VIATOR Bluetooth modem)
4 Analog display unit; observe maximum load
5 Cable screen; observe cable specification
6 Measuring device
7 Analog display unit; observe maximum load
8 Active barrier for power supply (e.g. RN221N), current output 2; observe terminal voltage
Terminal assignment, 4-wire: 4 to 20 mA HART (10.4 to 48 VDC)
3
+
4
-
1
L+
2
L-
13
2
A0036516
 8 Terminal assignment, 4-wire: 4 to 20 mA HART (10.4 to 48 VDC)
1 Connection 4 to 20 mA HART (active): terminals 3 and 4
2 Connection, supply voltage: terminals 1 and 2
3 Terminal for cable shield

Electrical connection Levelflex FMP55 HART
18 Endress+Hauser
Block diagram, 4-wire: 4 to 20 mA HART (10.4 to 48 VDC)
5
4
1
2
3
+
-
Y
I
6
3
4
L+
L- 1
2
7
A0036526
 9 Block diagram, 4-wire: 4 to 20 mA HART (10.4 to 48 VDC)
1 Evaluation unit, e.g. PLC
2 Resistor for HART communication (≥ 250 Ω); observe maximum load
3 Connection for Commubox FXA195 or FieldXpert SFX350/SFX370 (via VIATOR Bluetooth modem)
4 Analog display unit; observe maximum load
5 Cable screen; observe cable specification
6 Measuring device
7 Supply voltage; observe terminal voltage, observe cable specification
Terminal assignment, 4-wire: 4 to 20 mA HART (90 to 253 VAC)
3
+
4
-
1
L
2
N
13
2
A0036519
 10 Terminal assignment, 4-wire: 4 to 20 mAHART (90 to 253 VAC)
1 Connection 4 to 20 mA HART (active): terminals 3 and 4
2 Connection, supply voltage: terminals 1 and 2
3 Terminal for cable shield

Levelflex FMP55 HART Electrical connection
Endress+Hauser 19
LCAUTION
To ensure electrical safety:
‣Do not disconnect the protective ground connection.
‣Disconnect the device from the supply voltage before disconnecting the protective ground.
Connect protective ground to the inner ground terminal (3) before connecting the supply
voltage. If necessary, connect the potential matching line to the outer ground terminal.
In order to ensure electromagnetic compatibility (EMC): do not ground the device
exclusively via the protective ground conductor of the supply cable. Instead, the
functional grounding must also be connected to the process connection (flange or
threaded connection) or to the external ground terminal.
An easily accessible power switch must be installed in the proximity of the device. The
power switch must be marked as a disconnector for the device (IEC/EN61010).
Block diagram, 4-wire: 4 to 20 mA HART (90 to 253 VAC)
5
4
1
2
3
+
-
Y
I
6
3
4
L
N1
2
7
A0036527
 11 Block diagram, 4-wire: 4 to 20 mA HART (90 to 253 VAC)
1 Evaluation unit, e.g. PLC
2 Resistor for HART communication (≥ 250 Ω); observe maximum load
3 Connection for Commubox FXA195 or FieldXpert SFX350/SFX370 (via VIATOR Bluetooth modem)
4 Analog display unit; observe maximum load
5 Cable screen; observe cable specification
6 Measuring device
7 Supply voltage; observe terminal voltage, observe cable specification
6.1.2 Device plug
In the case of the device versions with a plug, the housing does not need to be opened to
connect the signal cable.

Electrical connection Levelflex FMP55 HART
20 Endress+Hauser
2
1
3
4
A0011175
 12 Pin assignment of M12 plug
1 Signal +
2 Not assigned
3 Signal -
4 Ground
4
2
3
1
A0011176
 13 Pin assignment of 7/8" plug
1 Signal -
2 Signal +
3 Not assigned
4 Shielding