Endress+Hauser Micropilot S FMR540 Technical specifications

Products Solutions Services
KA01059F/00/EN/13.13
71229238
Brief Operating Instructions
Micropilot S FMR540
Level-Radar
MadeinGermanyMaulburg
MadeinGermany Maulburg
OrderCode:
Ser.-No.:
OrderCode:
Ser.-No.:
IP65
Messbereich
Measuringrange
U16...36VDC
4...20mA
max.20m
T>
70°C:
At>85°C
SS+HAUSER
OPILOTFMR
MadeinGermanyMaulburg
MadeinGermany Maulburg
OrderCode:
Ser.-No.:
OrderCode:
Ser.-No.:
IP65
Messbereich
Measuringrange
U16...36 V DC
4...20mA
max.20 m
T>70°C:
At>85°C
SS+HAUSER
OPILOTFMR
These Instructions are Brief Operating Instructions; they do not
replace the Operating Instructions included in the scope of
supply.
For detailed information, refer to the Operating Instructions and
other documentation on the CD-ROM provided or visit
"www.endress.com/deviceviewer".

Table of contents Micropilot S FMR540 4 to 20 mA HART
2Endress+Hauser
Table of contents
1 Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
1.1 Designated use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2 Installation, commissioning and operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.3 Operational safety and process safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.4 Return . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.5 Notes on safety conventions and symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2 Installation instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
2.1 Quick installation guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2 Incoming acceptance, transport, storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.3 Installation instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.4 Post-installation check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
3.1 Quick wiring guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.2 Connecting the measuring unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.3 Equipotential bonding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.4 Degree of protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.5 Post-connection check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4 Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
4.1 General structure of the operating menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.2 Display and operating elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
5.1 Function check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
5.2 Switching on the measuring device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
5.3 Overview Basic Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5.4 Basic Setup with device display VU331 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
5.5 Envelope curve with device display VU331 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Micropilot S FMR540 4 to 20 mA HART Safety instructions
Endress+Hauser 3
1 Safety instructions
1.1 Designated use
The Micropilot S is a compact radar level transmitter for the continuous, contactless
measurement of predominantly solids. The device can also be freely mounted outside closed
metal vessels because of its operating frequency in the K-band and a maximum radiated pulsed
energy of 1 mW (average power output 1 μW). Operation is completely harmless to humans
and animals.
1.2 Installation, commissioning and operation
The Micropilot S has been designed to operate safely in accordance with current technical,
safety and EU standards. If installed incorrectly or used for applications for which it is not
intended, however, it is possible that application-related dangers may arise, e.g. product
overflow due to incorrect installation or calibration. For this reason, the device must be installed,
connected, operated and maintained according to the instructions in this manual: personnel
must be authorised and suitably qualified. The manual must have been read and understood,
and the instructions followed. Modifications and repairs to the device are permissible only when
they are expressly approved in the manual.
1.3 Operational safety and process safety
Alternative monitoring measures must be taken to ensure operational safety and process safety
during configuration, testing and maintenance work on the device.
1.3.1 Hazardous areas
Measuring systems for use in hazardous environments are accompanied by separate "Ex
documentation", which is an integral part of this Operating Manual. Strict compliance with the
installation instructions and ratings as stated in this supplementary documentation is
mandatory.
• Ensure that all personnel are suitably qualified.
• Observe the specifications in the certificate as well as national and local regulations.
1.3.2 FCC approval
This device complies with part 15 of the FCC Rules. Operation is subject to the following two
conditions:
1. This device may not cause harmful interference, and
2. this device must accept any interference received, including interference that may cause
undesired operation.

Safety instructions Micropilot S FMR540 4 to 20 mA HART
4Endress+Hauser
CAUTION
!
Changes or modifications not expressly approved by the part responsible for compliance
could void the user’s authority to operate the equipment.
1.4 Return
Follow the instructions on returning the device as outlined in the Operating Instructions
(BA00326F/00/EN) on the CD-ROM provided.
1.5 Notes on safety conventions and symbols
In order to highlight safety-relevant or alternative operating procedures in the manual, the
following conventions have been used, each indicated by a corresponding symbol in the margin.
1.5.1 Safety symbols
1.5.2 Electrical symbols
Symbol Meaning
A0011189-EN
DANGER!
This symbol alerts you to a dangerous situation. Failure to avoid this situation will result in
serious or fatal injury.
A0011190-EN
WARNING!
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
serious or fatal injury.
A0011191-EN
CAUTION!
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
minor or medium injury.
A0011192-EN
NOTICE!
This symbol contains information on procedures and other facts which do not result in
personal injury.
Symbol Meaning
A0018339
Protective ground connection
A terminal which must be connected to ground prior to establishing any other connections.
DANGER
WARNING
CAUTION
NOTICE

Micropilot S FMR540 4 to 20 mA HART Safety instructions
Endress+Hauser 5
1.5.3 Tool symbols
1.5.4 Symbols for certain types of information
1.5.5 Symbols in graphics
Symbol Meaning
A0011221
Allen key
Symbol Meaning
A0011182
Allowed
Indicates procedures, processes or actions that are allowed.
A0011184
Forbidden
Indicates procedures, processes or actions that are forbidden.
A0011193
Tip
Indicates additional information.
A0015484
Reference to page
Refers to the corresponding page number.
, , ,... Series of steps
Symbol Meaning
1, 2, 3, 4, ... Item numbers
, , ,... Series of steps
A, B, C, D, ... Views

Safety instructions Micropilot S FMR540 4 to 20 mA HART
6Endress+Hauser
1.5.6 Symbols at the device
Symbol Meaning
A0019159
Safety instructions
Observe the safety instructions contained in the associated Operating Instructions.
A0019221
Temperature resistance of the connection cables
Specifies the minimum value of the temperature resistance of the connection cables.

Micropilot S FMR540 4 to 20 mA HART Installation instructions
Endress+Hauser 7
2 Installation instructions
2.1 Quick installation guide
A0020810
1Markeratsensor
2 Marker at flange
2.2 Incoming acceptance, transport, storage
2.2.1 Incoming acceptance
Check the packing and contents for any signs of damage. Check the shipment, make sure
nothing is missing and that the scope of supply matches your order.
2.2.2 Transport
CAUTION
!
Follow the safety instructions and transport conditions for devices of more than
18 kg (39.69 lbs).
2.2.3 Storage
Pack the measuring device so that is protected against impacts for storage and transport.
The original packing material provides the optimum protection for this. The permissible storage
temperature is -40 to +80 °C (-40 to +176 °F).
90°
90°
2
1

Installation instructions Micropilot S FMR540 4 to 20 mA HART
8Endress+Hauser
2.3 Installation instructions
2.3.1 Mounting kit
For the mounting , you will require the following tool:
• The tool for flange mounting
• 90 mm wrench for adjustment of the alignment device
(only for devices with alignment device)
• 4 mm (0.1") Allen wrench for turning the housing
2.3.2 Engineering hints
Tank installations
• Avoid any installations (1), like limit
switches, temperature sensors, etc., inside the
signal beam ("Beam angle", ä9).
• It is essential that HiHi alarm is below the
blocking distance (BD) and the safety distance
(SD).
• Symmetrical installations (2), e.g. vacuum
rings, heating coils, baffles, etc., can also
interfere with the measurement.
Optimization options
• Antenna size: the bigger the antenna, the
smaller the beam angle, the less interference
echoes.
• Mapping: the measurement can be optimized
by means of electronic suppression of
interference echoes.
• Antenna alignment:
refer to BA00326F/00/EN.
• Stilling well: a stilling well can always be used
to avoid interference. The FMR532 with
planar antenna is recommended for stilling
wells with a diameter DN150 (6") and larger.
• Metallic screens (3) mounted at a slope spread
the radar signals and can, therefore, reduce
interference echoes.
Please contact Endress+Hauser for further
information.
A0020450
1
3
2
BD
SD

Micropilot S FMR540 4 to 20 mA HART Installation instructions
Endress+Hauser 9
2.3.3 Orientation
2.3.4 Beam angle
The beam angle is defined as the angle where 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. Beam diameter Wis a
function of antenna type (beam angle ) and measuring distance D. The recommended distance
to the tank wall is indicated in the tables below. It is strongly recommended to avoid any
mechanical obstacles within the highlighted area.
Orientation
• Recommended distance (1) wall - outer edge
of nozzle: ~1/6 of tank diameter ("Beam
angle", ä9).
• Not in the centre (3), interference can cause
signal loss.
• Not above the fill stream (4).
• It is recommended to use a weather protection
cover (2) in order to protect the transmitter
from direct sun or rain. Assembly and
disassembly is simply done by means of a
tension clamp (see BA00326F/00/EN on
CD-ROM).
A0020541
1
234

Installation instructions Micropilot S FMR540 4 to 20 mA HART
10 Endress+Hauser
Horn antenna
A0020805
Antenna size 100 mm (4")
Beam angle ()8°
Measuring distance
(D)
Beamwidth
diameter (W)
Recommended distance to wall
0° tilting 3° tilting
5 m (16 ft) 0,70 m (2.3 ft) 0,89 m (2.9 ft) 0,62 m (2 ft)
10 m (33 ft) 1,40 m (2.6 ft) 1,77 m (5.8 ft) 1,23 m (4 ft)
15 m (49 ft) 2,10 m (6.9 ft) 2,65 m (8.7 ft) 1,85 m (6.1 ft)
20 m (66 ft) 2,80 m (9.2 ft) 3,53 m (12 ft) 2,46 m (8.1 ft)
25 m (82 ft) 3,50 m (11 ft) 4,41 m (14 ft) 3,07 m (10 ft)
30 m (98 ft) 4,20 m (14 ft) 5,29 m (17 ft) 3,69 m (12 ft)
Parabolic antenna
A0020806
Antenna size 200 mm (8") 250 mm (10")
Beam angle ()4.4° 3.3°
Measuring distance
(D)
Recommended distance to wall
5 m (16 ft) 0,35 m (1.1 ft) 0,2 m (0.7 ft)
10 m (33 ft) 0,70 m (2.3 ft) 0,5 m (1.6 ft)
15 m (49 ft) 1,05 m (3.4 ft) 0,75 m (2.5 ft)
20 m (66 ft) 1,40 m (2.6 ft) 1,05 m (3.4 ft)
25 m (82 ft) 1,75 m (5.7 ft) 1,3 m (4.3 ft)
30 m (98 ft) 2,10 m (6.9 ft) 1,6 m (5.2 ft)
35 m (115 ft) 2,45 m (8 ft) 1,85 m (6.1 ft)
40 m (131 ft) 2,80 m (9.2 ft) 2,10 m (6.9 ft)
D
W
a
D
W
a

Micropilot S FMR540 4 to 20 mA HART Installation instructions
Endress+Hauser 11
2.3.5 Measuring conditions
• The measuring range begins, where the beam hits the tank bottom. Particularly with dish
bottoms or conical outlets the level cannot be detected below this point.
• Depending on its consistence, foam can either absorb microwaves or reflect them off the foam
surface. Measurement is possible under certain conditions.
• The smallest possible measuring range Bdepends on the antenna version (see fig.).
• Tank diameter and height should be at least dimensioned such that a reflection of the radar
signal on both sides of the tank can be avoided.
• In case of media with a low dielectric constant (media groups A and B), the tank bottom can
be visible through the medium at low levels (low height C). Reduced accuracy has to be
expected in this range. If this is not acceptable, we recommend positioning the zero point at
a distance C(see Fig.) above the tank bottom in these applications.
• In principle it is possible to measure up to the tip of the antenna with FMR540. However, due
to considerations regarding accuracy corrosion and build-up, the end of the measuring range
should not be chosen any closer than 60 mm (2.36 in) to the tip of the antenna (see Ain
Fig.).
A0020737
1)
1) All values are based on reference conditions.
A [m (ft)] B [m (ft)] C [mm (in)]
FMR540 (without extension)2)
2) The length of a sensor extension shall be added to "A" when selecting the extension option.
0,6 (2) > 0,5 (1.6) > 300 (11.8)
100%
0%
BA
C

Installation instructions Micropilot S FMR540 4 to 20 mA HART
12 Endress+Hauser
Behaviour if measuring range is exceeded
The behaviour in case of the measuring range being exceeded can be freely set:
The default setting is a current of 22 mA and the generation of a digital warning (E651).
2.3.6 Standard installation FMR540 with horn antenna
Standard installation FMR540 with horn
antenna
• Observe installation instructions, ä8.
• Marker must be aligned towards tank wall.
The marker is located clearly visible on the
sensor neck or the flange.
• After mounting, the housing can be turned
350° in order to simplify access to the display
and the terminal compartment.
• Adjust vertical sensor alignment in case the
flange is not parallel to the face is medium
surface.
• The horn antenna should protrude from the
nozzle. If necessary, choose version with
antenna extension. Please contact
Endress+Hauser for application with higher
nozzle.
• The horn antenna should be installed with 3°
inclination towards the tank center.
To avoid interference reflections or for
optimum alignment within the tank, the
FMR540 with optional alignment device can
be swiveled by 15° in all directions. For more
informations please see Operating
Instructions KA00274F/00/A2.
Please contact Endress+Hauser Service
Organization for commissioning.
A0020809
H
øD
Antenna size 100 mm (4")
D [mm (in)] 95 (3.74)
H [mm (in)]
(without antenna extension) < 430 (16.9)

Micropilot S FMR540 4 to 20 mA HART Installation instructions
Endress+Hauser 13
2.3.7 Standard installation FMR540 with parabolic antenna
• Observe installation instructions, ä8.
• Marker is aligned towards tank wall.
The marker is located clearly visible on the sensor neck or the flange.
• After mounting, the housing can be turned 350° in order to simplify access to the display and
the terminal compartment.
• Ideally the parabolic antenna should protrude from the nozzle (1). Particularly when using
the alignment device, please ensure that the parabolic reflector is protruding from the
nozzle/roof so as not to inhibit alignment.
• The parabolic antenna should be installed vertically.
To avoid interference reflections or for optimum alignment within the vessel, the FMR540
with optional alignment device can be swiveled by 15° in all directions.
For more informations please see Operating Instructiosn KA00274F/00/A2.
Please, contact Endress+Hauser Service organization for commissioning.
A0020808
A Antenne ragt aus dem Stutzen
B Einbau der Antenne im Sutzen
1 Einbau senkrecht zur Flüssigkeitsoberfläche
aAbstandbeachten
For application with higher nozzle install parabolic antenna completely in the
nozzle (B), including RF-wave guide.
øD
H
AB
1
aa
Antenna size 200 mm (8") 250 mm (10")
D [mm (in)] 173 (6.81) 236 (9.29)
H [mm (in)]
(without antenna extension) < 200 7.87) < 200 (7.87)

Installation instructions Micropilot S FMR540 4 to 20 mA HART
14 Endress+Hauser
2.3.8 FMR540 with alignment device
Micropilot S should be installed vertically towards the Liquid surface for best measuring
performance of ±1 mm (0.04 in). Using the alignment device it is possible to tilt the antenna
axis by up to 15° in all directions. The alignment device is used for the optimum alignment of
the radar beam to the liquid surface. The Sensor should be positioned vertical to the liquid
surface in inclination of 0° for Parabolic Antenna and up to 3° for Horn Antenna.
A0020807
AMedium
To align the antenna as precisely as possible, it is recommended to use the sensor alignment
tool, which is available as an accessory.
For more informations please see instructions in KA00274F/00/A2.
In case of custody Application, the screws must be locked with wires.
±15°
±15°
90 °
90 °
A

Micropilot S FMR540 4 to 20 mA HART Installation instructions
Endress+Hauser 15
2.3.9 Sensor alignment tool for alignment device
A sensor alignment tool (1) is recommended to
be used at the time of installation for FMR540
with alignment device.
Alignment procedure
This procedure is only applicable to the
sensors purchased with alignment device
(3). To carry out this procedure requires an
accessory from Endress+Hauser, sensor
alignment tool (1) for Micropilot S
FMR540.
Before starting this procedure, please observe
Micropilot S FMR540 has been mounted on the
tank in proper position and all flange bolts (2)
are tightened.
Tools: 90 mm open wrench
Accessory Package contains:
Sensor alignment tool (part no. 52026756)
Description of procedure "Sensor Alignment
using Sensor alignment tool"
(KA00274F/00/A2 part no. 52027425)
Loosen the nut (3), so that the FMR540
can tilt smoothly.
A0021554
Observe the sensor can smoothly tilt its
position. The nut should not be too loose.
Tilt the Micropilot S to approximately
vertical to the medium surface (A) or
horizontal plane.
A0020807
MadeinGermanyMaulburg
Madein Germany Maulburg
IP 65
Messbereich
Measuringrange
Messbereich
Measuring range
U16...36VDC
4...20mA
U 16...36 V DC
4...20 mA
max. 20m
max. 20 m
T>
70°C:
At >85°C
T >70°C:
At >85°C
OrderCode:
Ser.-No.:
Order Code:
Ser.-No.:
SS+HAUSER
OPILOT FMR
SS+HAUSER
OPILOT FMR
1
3
2
±15°
±15°
90 °
90 °
A

Installation instructions Micropilot S FMR540 4 to 20 mA HART
16 Endress+Hauser
After tightening the nut, check if the sensor cannot tilt and change its position. Torque for the
nut: 80 to 85 Nm (59 to 62.69 lbf ft). If it is required by the local custody transfer authority,
please seal the alignment device at the sealing screws using the provided wires and seal metals.
Place the Sensor alignment tool (1) for
Micropilot S FMR540. Please, note to avoid
any obstacles between the backside of the
Alignment tool and the nameplate of
Micropilot S FMR540.
A0021550
Micropilot S FMR540 with Horn Antenna:
Tilt the FMR540 targeting the direction of
tank center up to the position where the
angle indicators`s outer circle reaches the
circle of 3 deg (4).
Exceeding the 3 degree position may
cause a weaker signal (or loss of
signal).
Micropilot S FMR540 with Parabolic
Antenna:
Tilt the FMR540 to the position where the
bubble comes into the center (5) of the
inclination indicator (0 deg).
Gradually tighten the nut of the alignment
tool and make sure to keep the position of
0 degree/3 degree inclination. A0021415
90°
90°
MadeinGermanyMaulburg
MadeinGermany Maulburg
IP65
IP 65
Messbereich
Measuringrange
Messbereich
Measuringrange
U16...36VDC
4...20mA
U16...36VDC
4...20mA
max.20m
max.20m
T>70°C:
At>85°C
T>70°C:
At>85°C
OrderCode:
Ser.-No.:
OrderCode:
Ser.-No.:
SS+HAUSER
OPILOTFMR
SS+HAUSER
OPILOT FMR
1
4
5
3°
2°
1°
0°
Endress+Hauser
52026756

Micropilot S FMR540 4 to 20 mA HART Installation instructions
Endress+Hauser 17
2.3.10 Sealing for custody transfer applications
2.3.11 Turn housing
After mounting, the housing can be turned 350° in order to simplify access to the display and
the terminal compartment. Proceed as follows to turn the housing to the required position:
1. Undo the allen screw
2. Turn the housing in the required direction
3. Tighten up the allen screw strongly by hand
A0020470
The alignment device can be sealed using the
provided slotted capstan screws. The seal wires
must be installed against the open direction in
order to assure that a loosening of the alignment
device is not possible.
It is recommended to seal at least two of the
three sealing points provided.
A0021559
4 mm

Installation instructions Micropilot S FMR540 4 to 20 mA HART
18 Endress+Hauser
2.4 Post-installation check
After the measuring device has been installed, perform the following checks:
• Is the measuring device damaged (visual check)?
• Does the measuring device correspond to the measuring point specifications such as process
temperature/pressure, ambient temperature, measuring range, etc.?
• Is the flange marking correctly aligned (ä7)?
• Have the flange screws been tightened up with the respective tightening torque?
• Are the measuring point number and labeling correct (visual check)?
• Is the measuring device adequately protected against rain and direct sunlight (see Chapter
"Accessories" in the Operating Instruction on CD-ROM)?

Micropilot S FMR540 4 to 20 mA HART Wiring
Endress+Hauser 19
3Wiring
3.1 Quick wiring guide
When grounding conductive screens, the corresponding directives EN 60079-14 and
EN 1127-1 must be observed. Recommendation for safe grounding of conductive screens:
CAUTION
!
Before connection please note the following:
‣The power supply must be identical to the data on the nameplate.
‣Switch off power supply before connecting the device.
‣Connect equipotential bonding to transmitter ground terminal before connecting the device.
‣Tighten the locking screw:
It forms the connection between the antenna and the housing ground potential.
‣When you use the measuring system in hazardous areas, make sure you comply with
national standards and the specifications in the safety instructions (XA’s)

Wiring Micropilot S FMR540 4 to 20 mA HART
20 Endress+Hauser
3.1.1 Wiring
CAUTION
!
Before connection please note the following:
‣The power supply to be delivered by a transmitter supply unit.
‣Befor removing housing cover at seperate connection compartment turn off the power
supply!
Insert cable through gland . Use screened,
twisted 2-wire or 4-wire cable.
A0020479
A Power 24 VDC; from a transmitter supply unit
B Signal 24 VDC; from a transmitter supply unit
1Housingcover
2Cable
3 Cable gland
4 Alternative connection
5 Commubox FXA195, Field Communicator
6Shieldground
7 Test socket; Output current
8 PML (potential matching line)
CAUTION
!
Only ground screening of the line on
sensor side.
Make connection (see pin assignment).
Tighten cable gland.
Replace and tighten off housing cover.
Switch on power supply.
A Micropilot S situated in a hazardous area
is connected as a single device to a power
supply unit and transmitter
situated outside of the hazardous area.
In this case, it is recommended that the
screen be connected directly to the
Micropilot at the housing’s earth,
whereby the Micropilot S and the power
supply unit are connected to the same
potential equalization line.
1
3
2
6
1
1
2
2
3
3
4
4
5
5
8
AB
5
7
4