Endress+Hauser FMR 231 Operating Instructions Manual

micropilot

FMR 231
Microwave
Level Measurement

Operating Instructions

ENDRESS+HA

USER

MICROPILOTII

IP65

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Code:

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easuring

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U16.

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4...20m
A

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ax.

20m

MadeinGermany Maulburg

T>70°C

:

A

t >

8

5

°C

ENDRESS+HA

USER

MICROPILOTII

IP65

O

rder

C

ode:

Ser

.-N

o

.:

M

essbereic

h

M

easuring

range

U16.

..36VD

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4...20m
A

m

ax.

20m

MadeinGermany Maulburg

T>70°C

:

A

t >

8

5

°C

BA 171F/00/en/06.01
Software version 2.0
017479-1000

Hauser

+

Endress

The Power of Know How

Short Instructions

Note!

• The datum point for the empty distance "E" is always the lower face of the process

connection.

• The full distance "F" can extend up to the tip of antenna.

• For stilling wells see Chapter 6.2

Calibration with VU 330
or remote operation for
buffer and storage tanks

Note!

➀ Check installation

1. Check that the alignment mark points
to the tank wall, see also Chapter 2.1.

➁ Calibration

1. Reset

V9H5 = 333

2. Empty and full calibration

V0H1 = E
V0H2 = F
V0H3 = A (application parameter)

A = 0: Tanks up to 7 m
A = 1: Tanks up to 1.5 m

A = 2: Tanks up to 7 m, ε

r

<10

A = 3: Tanks from 7 m to 20 m

3. False echo suppression

Tank empty (≤E)!

V3H0 = 4
V3H1 = (E – 0,8 m)

For partially full tanks see Chapter 6.1.

➂ Check echo quality

1. Echo qualitity

Observe when filling tank

V3H2 ≥ 10 dB

Measurement in order

V3H2 < 10

Measurement not in order:

Optimise alignment, see Chapter 7.5.
Try different nozzle position,
see Chapter 2.1.

flange

tank wall

alignment
mark points
to tank wall

nozzlemin.
30 cm from
wall

thread

F

E

100%
20mA

0%
4mA

V H

V3H2 >10:

Short Instructions Micropilot FMR 231

Endress+Hauser

TableofContents

NotesonSafety........... 3

1 Introduction ............ 5

1.1 Measurement principle...... 6

1.2 Measuringsystem........ 8

2 Installation............. 9

2.1 Mountingina tank........ 9

2.2 Mountinginstillingwells...... 12

2.3 Protectivecover......... 13

3 Connection............. 14

3.1 Wiringexamples......... 15

4 Operation ............. 16

4.1 On-site operation ........ 16

4.2 Remoteoperation........ 18

5 On-sitecalibrationwithoutdisplay

VU330...............21

6 CalibrationwithDisplay/Remote

Operation ............. 23

6.1 Basic calibration for tanks..... 24

6.2 Basic calibration for bypasspipes

and stillingwells: ........ 26

6.3 Linearisation.......... 28

6.4 Analogueoutput......... 31

6.5 Safetyfunctions......... 32

6.6 Locking/unlocking the matrix.... 33

6.7 Measuringpointinformation.... 34

7 Trouble-Shooting ..........35

7.1 Self-monitoring .........35

7.2 Error messages.........36

7.3 Faultanalysis..........37

7.4 Applicationparameter ......39

7.5 Echo quality ..........40

7.6 Falseechosuppression......41

7.7 Windowsuppression.......42

7.8 Plausibility...........42

7.9 Simulation ...........43

7.10Reset.............44

8 Maintenance andRepair .......45

8.1 Maintenance ..........45

8.2 Repairs ............45

8.3 Spare parts...........46

9 Technical Data ...........49

9.1 Dimensions...........52

9.2 Deratingdiagrams........53

9.3 Productstructure FMR231E....54

9.4 Productstructure FMR231A....55

10 OperatingMatrix ..........56

10.1Matrixoperation.........56

10.2HART.............57

Index ...............58

Micropilot FMR231 Table of Contents

Endress+Hauser 1

Software History

Software
version

Manual
version

Device/
Software
No.

Software revision Changes in manual

1.0 02.98 2310 Original software operable with
Commuwin II, from software version

1.41
HART handheld from software
version 1.11 with DD version 1.0

2.0 11.98 2320 Improvement of evaluation
algorithms

Introduction of matrix field V8H6,
plausibility

Operable via Commuwin II,
software version 2.0
HART handheld from software
version 1.11 with DD version 1.0

No effect on operation

Plausibility described in Chapter 7.8
No visible effects on operation

Bypass pipe application removed,
Chapters 2 and 6 revised

An up/download of device data between devices with different software versions is not possible without special
software tools.

Micropilot FMR 231 Software History

2 Endress+Hauser

Notes on Safety

Approved usageThe Micropilot FMR 231 is a compact level transmitter designed for continuous,

non-contact level measurement of liquids, pastes and slurries.

The operating frequency of 5.8 GHz lies in a frequency band approved for industrial use.

FCC approved devices operate at 6.3 GHz. Its low pulse power of 1 mW (1 µW ERP)

allows safe installation in metallic and non-metallic vessels, with no risk to humans or the
environment.

Installation,
commissioning,
operation

The Micropilot FMR 231 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, itis possible that application-related dangers mayarise,
e.g. product overflow due to incorrect installation or calibration. For this reason, the
instrument 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.

Explosion hazardous
areas

If the device is to be installed in an explosion hazardous area, then the specifications in
the certificate as well as all national and local regulations must be observed. The
instrument can be delivered with the certificates listed in the table below. The certificate
can be identified from the first letter of the order code stamped on the nameplate.

•

Ensure that all personnel are suitably qualified

•

Observe the specifications in the certificate as well as national and local
regulations.

•

Switch off the power before opening the T12 housing in explosion hazardous
areas. The display module is stowed in a separate housing (EEx ia) which can be
opened when the Micropilot is in operation.

FCC approvalThis 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. In addition, the device may be used in metal vessels only.

Changes or modifications not expressly approved by the party responsible for
compliance could void the user's authority to operate the equipment.

Code Certificate Protection Housing

A none none F12

1 PTB ATEX II 1/2 G EEx ia IIC T3...T6 F12

2 PTB ATEX II 1/2 G EEx e m [ia] T3...T6 T12

K TIIS Ex ia IIC T3 F12

R none none F12 (FCC approval)

S FM IS Cl. I, Div. 1, Group A-D F12 (FCC approval)

T FM XP Cl. I, Div. 1, Group A-D T12 (FCC approval)

U CSA IS Cl. I, Div. 1, Group A-D F12

V CSA XP Cl. I, Div. 1, Group A-D T12

Table S.1
Certificates for use in explosion

hazardous areas
FCC approved devices operate

at 6.3 GHz and are for USA only

ENDRESS+HAUSER
MICROPILOT FMR 231

Order No.FMR 231-

Micropilot FMR 231 Notes on Safety

Endress+Hauser 3

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 icon in
the margin.

Safety conventions

Explosion protection

Electrical symbols

Symbol Meaning

Note!

A note highlights actions or procedures which, if not performed correctly, may indirectly affect
operation or may lead to an instrument response which is not planned

Caution!

Caution highlights actions or procedures which, if not performed correctly, may lead to
personal injury or incorrect functioning of the instrument

Warning!

A warning highlights actions or procedures which, if not performed correctly, will lead to
personal injury, a safety hazard or destruction of the instrument

Device certified for use in explosion hazardous area

If the device has this symbol embossed on its name plate it can be installed in an explosion
hazardous area in accordance with the specifications in the certificate or in a safe area

Explosion hazardous area

Symbol used in drawings to indicate explosion hazardous areas.
Devices located in and wiring entering areas with the designation “explosion hazardous
areas” must conform with the stated type of protection

Safe area (non-explosion hazardous area)

Symbol used in drawings to indicate, if necessary, non-explosion hazardous areas.
Devices located in safe areas stiill require a certificate if their outputs run into explosion
hazardous areas.

Direct voltage

A terminal to which or from which a direct current or voltage may be applied or supplied

Alternating voltage

A terminal to which or from which an alternating (sine-wave) current or voltage may be
applied or supplied

Grounded terminal

A grounded terminal, which as far as the operator is concerned, is already grounded by
means of an earth grounding system

Protective grounding (earth) terminal

A terminal which must be connected to earth ground prior to making any other connection to
the equipment

Equipotential connection (earth bonding)

A connection made to the plant grounding system which may be of type e.g. neutral star or
equipotential line according to national or company practice

Note!

Caution!

Warning!

Notes on Safety Micropilot FMR 231

4 Endress+Hauser

1 Introduction

ApplicationThe Micropilot FMR 231 is a loop-powered transmitter. It is used to for continuous

non-contact level measurement of liquids, pastes and sludges. It is suitable for use in:

•

storage tanks, buffer tanks and stilling wells

with few internal fittings and where the product surface is generally calm. Changes of
product, temperature gradients, inert gas blankets or vapours do not influence the
measurement.

VersionsThe various Micropilot FMR 231 versions result from the combinations between antenna

type, inactive length and the process connection. Table 1.1 summarises them. The
product structure is described in Chapter 9.

BA171Y05

➀

➁

BA171Y06

Fig.1.1

➀

Storage tank

➁

Stilling well or bypass pipe

Application

Standard, for tanks and stilling wells Hygienic, corrosive-resistant, for tanks

and stilling wells

Housing

Housing F12 (standard/EEx ia/Ex IS) or housing T12 (standard/EEx e/Ex XP)

Antenna type

PPS antenna PTFE antenna

Inactive length

100 mm/250 mm

Process connection

Thread 1½ BSPT (R 1½) or 1½ NPT, PVDF

Flange DN50/80/100150/ or ANSI/JIS equivalent

Sanitary coupling: dairy, Tri-clamp or aseptic

Cladding

uncladded cladded or uncladded

Pressure/
flange temperature

0...16 bar
–20°C...+120°C

0...16 bar with cladded flange

0...40 bar uncladded flange
–40°C...+150°C

Wetted parts

PPS, Viton O-ring,

1.4435 flange/thread

Uncladded: PTFE und 1.4435
flange/thread
Cladded: PTFE only

PPS = Polyphenylene sulphide

Table 1.1
Micropilot FMR 231 versions

Micropilot FMR 231 Chapter 1 Introduction

Endress+Hauser 5

1.1 Measurement principle

Micropilot is a "downward looking" time-of-flight system which measures the distance
from the probe mounting (top of the tank) to the surface of the process medium.

Short microwave pulses are beamed by the antenna towards the product, reflected by
its surface and detected by the same arrangement.

An inactive length at the start of the rod antenna delays the launch of the pulse for a
distance of 100 mm or 250 mm, ensuring that condensation or build-up in the mounting
nozzle does not affect the measurement.

Input The reflected microwaves are detected by the antenna and passed on to the electronics.

Here a microprocessor evaluates the signal and identifies the echo produced by the
reflection of the beam at the product surface. The algorithms used for signal processing
are based on many years of experience in time-of-flight measurement.

The distance D to the product surface isproportional to the time-of-flight of the microwave
pulse t:

D = c • t/2
where c is the speed of propagation

Since the empty distance E is known to the system, it is a simple matter to calculate the
level L:

L = E – D

The datum point for "E" is the bottom face of the process connection.

Micropilot has an echo suppression function which can be activated by the user. This
prevents interference echoes, e.g. caused by fittings within the beam, from being
interpreted as the level echo.

Output Micropilot is calibrated by entering the empty distance E, the full distance F and an

application parameter, which automatically tunes the instrument to the measuring
conditions.

For versions with current output, the points "E" and "F" correspond to 4 mA and 20 mA,
for digital outputs and the display to 0% and 100% level.

F

E

D

BA171Y06

datum point

beam
launched
here

inactive
length

datum point

max.level

Fig.1.2
Microwave measurement

principle

Chapter 1 Introduction Micropilot FMR 231

6 Endress+Hauser

A linearisation function, based on a manually or semi-automatically entered table, can
be activated locally at the display unit or via the foreign system interface. This allows
measurement in customer units andprovides a linear outputcurrent for spherical vessels,
horizontal cylinders and tanks with conical outlet.

AccuracyThe accuracy of Micropilot FMR 231 is dependent upon the set measuring range and

material being measured, see Technical Data. Under reference conditions it is capable
of measuring to an accuracy of ±15 mm up to a measuring range of 10 m and ±0.15%
of the range end-value of measuring ranges from 10 m to 20 m..

Measuring rangeThe measuring range depends upon the conditions in the tank and the product to be

measured. Table 1.2 describes the product classes, Table 1.3 the measuring range as
a function of the application and measuring conditions.

In order to ensure the highest accuracy for Class B, we recommend that

•

the empty distance "E" should be 30 cm above the tank bottom.

Class A products can be measured in bypass pipes using the FMR 230V horn antenna,
see operating manual BA 197F.

Product class Examples

A Non-conducting liquids, e.g. propane, buthane etc.

Dielectric constant ε

r.

1.4...1.9

B Non-conducting liquids, e.g. petrochemicals, benzine, oil, toluol, etc.

Dielectric constant ε

r

approx. 1,9...4

C E.g. concentrated acids, organic solvents, analine, esters, alcohols, acetone, etc.

oil/water mixtures
Dielectric constant ε

r

approx. 4...10

D Conducting liquids, watery solutions, dilutte acids and alkalis,

Dielectric constant ε

r

> 10 or electrical conductivity σ>10mS/cm

Table 1.2
Selection of product class

Product
Class

Strorage tank Buffer tank Stilling well or bypass pipe

Measuring range

Measuring range Measuring range

DN 50 DN 80

B

10 m 33 ft 5 m 16 ft 10 m 33 ft 20 m 67 ft

C

15 m 50 ft 8 m 25 ft 10 m 33 ft 20 m 67 ft

D

20 m 67 ft 10 m 33 ft 10 m 33 ft 20 m 67 ft

Table 1.3
Measuring range as a function of
application

Micropilot FMR 231 Chapter 1 Introduction

Endress+Hauser 7

1.2 Measuring system

4...20 mA with HART

Version with passive 4...20 mA current
output and superimposed HART digital
signal.

•

Can be operated either on-site or
remotely with the HART handheld
DXR 275.

•

Alternatively, a personal computer,
Commuwin II and Commubox FXA 191
can be used.

•

Loop-power is provided by a PLC or
power supply unit.

System integration via
Rackbus

Several Micropilot transmitters (or other
devices with HART output) can be linked to
a supervisory bus system with a gateway
ZA.

•

One FXN 672 interface module is
required for each transmitter.

•

Gateways are available for MODBUS,
PROFIBUS, FIP, INTERBUS etc..

•

Both on-site and remote operation are
possible, e.g. with Commuwin II (CW II).

I

O

V

H

+

VH

BA171Y11

DXR
275

4...20 mA
with HART

PLC
loop power

Commubox
with laptop

operating
and display
module
VU 330

FXN 671

mA1

+

FXN 671

mA1

+

V

H

+

VH

ZA672 ZA672

BA171Y11

FXN
672

4...20 mA with HART

PLCPC with

CW II

operating
and display
module
VU 330

busRS 232C

Gateway to
MODBUS, FIP,
PROFIBUS,
INTERBUS etc..

Chapter 1 Introduction Micropilot FMR 231

8 Endress+Hauser

2 Installation

2.1 Mounting in a tank

General notes

The microwaves should arrive unhindered
at the product surface.

•

Every object within the beam gives an
echo. The nearer the object, the
stronger the echo.

•

Strong echoes which cannot be
avoided by selecting a different
mounting position interfere with the
measurement and must be suppressed
during calibration.

Beam cone

Distance Radius r Distance Radius r

5 m 1 m 16 ft 3ft

10 m 2 m 33 ft 6 ft

15 m 3 m 50 ft 9 ft

20m 4m 67ft 12ft

Alignment

When installed, the alignment mark to be
found on the flange or threadedconnection
of the Micropilot should point towards the
tank wall.

•

Distance from tank wall min. 30 cm

The alignment can be optimised using
V3H2 as described in Chapter 7.5.

Ambient temperature

The ambient temperature of the housing
must be within the following limits, see also
Chapter 9.

•

Housing F12:
standard operation: –40°C...80°C
EEx ia T6 –40°C...50°C*

•

Housing T12:
standard operation: –40°C...80°C
EEx e T6 –40°C...50°C*

*For full details see certificate.

A protective cover is available for outdoor
mounting, Part No. 543199-0001.

BA171Y16

Fittings within
the beam cause
false echoes

23°

r

BA171Y17

tank wall

if possible,
clearance
greater than
30 cm

alignment
mark points to
tank wall

flange

thread

BA171Y21

Use a protective coverwhen
mounting outdoors

Micropilot FMR 231 Chapter 2 Installation

Endress+Hauser 9

Mounting position

The ideal mounting position is as follows:

•

not in the middle of the tank

•

not above the filling stream

•

no fittings in beam

•

avoid vibration, direct high-pressure
cleaning and lateral loads.

min. 30 cm

BA171Y72

A decentral
position avoids
double echoes

BA171Y71

A central
position
strengthens
double echoes

BA171Y73

A positionaway
from the filling
stream will avoid
interference
echoes

Echos from
fittings are
suppressed
during
calibraatrion

BA171Y74

A positionabove
the fillingstream
will be subject to
interference
echoes

It is not possible
to measure in
tanks with
stirrers

BA171Y76

If the nozzle is too
long, noise will
reduce the signal
quality

BA171Y75

Use either a
longer antenna
or a shorter
nozzle –
see page 11 for
details

Chapter 2 Installation Micropilot FMR 231

10 Endress+Hauser

Caution!

•

Applications in hazardous areas: electrostatic charging, e.g. rubbing clean, must be
avoided for standard PTFE and PTFE-clad antennas.

•

Always tighten the locking screw, since this connects the antenna to the ground
potential of the housing.

Nozzle

•

There is no restriction on nozzle
diameter provided that the length is
less than or equal to the inactive length.

•

Max. nozzle length hmax
100 mm for 100 mm inactive length,
250 mm for 250 mm inactive length.

•

The alignment mark on the flange
should point towards the tank wall.

•

After mounting, the housing can be
turned through 350° for convenient
access to the display and connection
compartment. The locking screw must
be loosened before turning.

•

Tighten the locking screw after turning.

Threaded connection

•

The hexagonal nut (AF 60) is used to
screw the transmitter in position.

•

Use e.g. a PTFE tape to seal the
process connection.

•

The alignment point on the threaded
connection should point towards the
tank wall.

•

After mounting, the housing can be
turned through 350° for convenient
access to the display and connection
compartment. The locking screw must
be loosened before turning.

•

Tighten the locking screw after turning.

BA171Y18

ground terminal

locking screw

datum point of
measurement

h

max

100 mm
or
250 mm

beam
launched
here

mark points to
tank wall

max.level

use spring
washers for
cladded
flange

inactivelength

BA171Y19

mark points to
tank wall

max.level

datum point of
measurement

locking screw

ground terminal

sealing tape

h

max

100 mm
or
250 mm

beam
launched
here

inactivelength

Caution!

Micropilot FMR 231 Chapter 2 Installation

Endress+Hauser 11

2.2 Mounting in stilling wells

Installation

Mount the antenna perpendicular and in
the centre of the well.

•

Slight unevenness of the well surface or
light build-up do not influence the
measurement

•

Measurements also possible through
open ball valves.

•

The alignment mark to be found on the
flange should point towards the slots.

•

After mounting, the housing can be
turned through 350° for convenient
access to the display and connection
compartment. The locking screw must
be loosened before turning.

•

Tighten the locking screw after turning.

.

Stilling well design

To ensure highest accuracy, the stilling well
should be designed as follows.

•

Metal construction

•

Constant diameter.

•

If possible, welding seam along axis of
slots.

•

Slots offset at 180° (not 90°), deburred

•

Slot width max. 1/10 of pipe diameter.
The length and number of slots has no
effect on the measurement.

Ambient temperature

The ambient temperature of the housing
must be within the following limits, see also
Chapter 9.

•

Housing F12:
standard operation: –40°C...80°C
EEx ia T6 –40°C...50°C*

•

Housing T12:
standard operation: –40°C...80°C
EEx e T6 –40°C...50°C*

*For full details see certificate.

A protective cover is available for outdoor
mounting, Part No. 543199-0001.

BA171Y77

inactive
length
100 mm
or
250 mm

locking screw

datum point for
measurement

alignment mark
pointing towards
the slots

spring
washer
for
cladded
flange

beam
launched
here

ground terminal

max.level

d

BA171Y22

if possible
welded along
axis of slots

slots offset
by 180°

slot width
max.

1

/10of

pipe diameter

BA171Y21

Use a protective cover when
mounting outdoors

Chapter 2 Installation Micropilot FMR 231

12 Endress+Hauser

2.3 Protective cover

A protective cover is available for outdoor mounting, Part No. 543199-0001. The scope
of delivery comprises the cover and clamping ring.

ENDRESS+HAUSER
MICRO

P

ILOTII

ENDRESS+HAUSER
MICROPILOTII

IP65

IP65

OrderCode:
Ser.-No.:

OrderCode:
Ser.-No.:

Messber

eich

Measuringrange

Messbereich
Measuringrange

U16...36VDC

4...20mA

U16...36V DC

4...20mA

max.20m

max.20m

MadeinGermany Maulburg

T>70°C:

A

t >85°C

T >70°C:

A

t >85°C

BA171Y78

clamping ring

protectivecover

Micropilot FMR 231 Chapter 2 Installation

Endress+Hauser 13

3 Connection

General notes The Micropilot is a loop-powered transmitter with 4...20 mA analogue output and

superimposed HART signal. Note the following before connecting up:

•

The power supply rating must correspond to that on the nameplate.

•

Turn off the power before connecting up.

•

Connect the external ground terminal of the transmitter to the plant grounding
system before connecting up.

•

Always tighten the locking screw, since this connects the antenna to the ground
potential of the housing.

Hazardous areas If the measuring system is to be installed in a hazardous area, local regulations, national

guidelines and the specifications inthe certificate are tobe observed.The specified cable
gland must be used.

For certified transmitters, the explosion protection is realised as follows:

•

Housing F12: EEx ia.
The power supply must be intrinsically safe.

•

Housing T12: EEx e m.
The housing must be integrated into the plant grounding system.
The power must be switched off before the connection compartment is opened.

The electronics and current output are galvanically isolated from the antenna circuit.

Connection Connect up the Micropilot as follows:

•

Switch off power.

•

Unscrew lid of housing or connection compartment.

•

For F12 housing: If appropriate, remove VU 330.

Remove cover plate to connection compartment.

•

Pull out terminal module with plastic loop.

•

Thread cable through cable gland or conduit

•

Connect up, see wiring examples.

•

Push terminal module back into place.

•

For F12 housing: Screw cover plate to connection compartment

If appropriate, stow away VU 330.

•

Screw on housing or connection compartment lid and screw cable gland or
conduit tight.

•

Switch on power.

Caution!

1

234

–

+

–

+

1

234

ENDRESS+HAUSER
MICROPILOT II

Order Code:FMR231-CEGGJ1A1A
Ser.-No.:PIZ0187

IP 65

EEx ia

Messbereich max.20 m
Measuring range
PN max 15 bar
T max. 150°C

antenna

BZT G133

414J

T < 80°C

A

U 16...30 DC

4...20 mA

Cable gland

Nameplate

external
ground
terminal

Connection compartment
behind cover plate –
loosen screws

BA171Y23

2nd cable entry

Operating elements in
display compartment

ground
terminal

HousingT12Housing F12

2x cable entries
at the rear

Fig.3.1
Micropilot connection

compartments and nameplate

Warning!

Chapter 3 Connection Micropilot FMR 231

14 Endress+Hauser

3.1 Wiring examples

The following figures show wiring examples for typical applications: In general:

•

If possible, ground both ends of the signal line screening. If this is not possible,
ground at the sensor side only.

•

In hazardous areas, the signal line may be grounded at the sensor side only.
Observe the instructions in the certificate.

4...20 mA with HART

Use screened, twisted pairs.

•

Min. load for HART 250 Ω

•

Max. load:

Housing F12: 1100 Ω, for EEx ia 820 Ω
Housing T12: 750 Ω, for EEx e 750 Ω.

•

Power
(load dependent, see Chapter 9.2.)
Housing F12

standard 16...36 VDC

EEx ia 16...30 VDC

Housing T12

standard 16...30 VDC
EEx e 16...30 VDC

System integration via

4...20 mA with HART

System Integration via interface FXN 672
and Rackbus gateway ZA 67x.

•

Power: supplied by FXN 672

Screened, twisted pairs are recommended
for the loop-power line.

1234

L- L+

I+ I-

BA171Y24

optional PLC
with active
output

power

plant
ground

DXR 275
or
FXA 191

communication
resistor

test sockets
(via interlock

diode)

Caution!

1

d4

ZA 67x

FXN 672

d2

234

L- L+

I+ I-

BA171Y25

plant
ground

Rackbus

Micropilot FMR 231 Chapter 3 Connection

Endress+Hauser 15

4 Operation

4.1 On-site operation

For the F12 housing, the operating elements are located within the transmitter housing
and can be operated when the cover is open. The T12 housing has a separate display
compartment which also can be opened in hazardous areas. The Micropilot has four
keys and an LED.

•

The LED flashes when an entered value is registered as well as during the
suppression of interference echoes. During operation it remains off.

•

The device keys allow the basic calibration of the Micropilot, but are deactivated
when the operating and display module VU 330 is connected.

Operation without the
VU 330

The function of the device keys when the operating and display module is not connected
is summarised in the table below. The two keys must always be pressed simultaneously.
The keys are used as follows, see Chapter 5:

Terminal

V H

V+ H

–

+

–

+

BA171Y26

bargraph
(current output/edho quality)

indicator
communication
fault

Operating and display module VU 330

matrix position

green LED

device
operating
keys

measured

not presentwith housing
T12

Fig.4.1
Operating elements of

Micropilot FMR 231

Keys Function

Reset to factory settings, see Chapter 7.9

Empty calibration, see Chapter 5

Full calibration, see Chapter 5

False echo suppression, see Chapter 5

Lock parameter entry, see Chapter 5

Unlock parameter entry, see Chapter 5

+

+

__

Chapter 4 Operation Micropilot FMR 231

16 Endress+Hauser

Operation with the
VU 330

If the Micropilot is equipped with an operating and display module VU 330, then it is
operated via a 10 x 10 operating matrix.

•

Each row is allocated to a particular function,

•

Each field sets or displays one parameter.

On-site operation with the operating and display module andcommunication both access
the same matrix. This is to be found in Chapter 10. If the HART handheld DXR 275 is
used, the transmitter is operated by a menu which is derived from this matrix.

The table below summarises the key functions of the operating and display module
VU 330.

V

H

VH

+

VH

V+ H

BA171Y27

Fig.4.2
Matrix operation using the
operating and display module

VU 330

Keys Function
Selection of matrix field

Selection of vertical matrix position

Selection of horizontal matrix position

and When V and H are pressed simultaneously the display springs to V0H0

Parameter entry

or Activates selected matrix position. The selected digit flashes.

Changes the value of the flashing digit by +1

Changes the value of the flashing digit by –1

and Sets the parameter just entered back to its original value, provided it has not

already been registered

Registration of the entry

or or

and

Registration of the entry and quitting of the matrix field

Registration of entry and jump to field V0H0

and or

and

+ and V lock entries,

– and H unlock entries, see Section 6.7

V

V

V

V

V

Micropilot FMR 231 Chapter 4 Operation

Endress+Hauser 17

4.2 Remote operation

The Micropilot can be remotely operated via the communication interface 4...20 mA with
HART.

For HART, the operation depends on the measuring system.

•

For computer operation via Commubox FXA 191 or FXN 672 and gateway, the
operating matrix is used, see page 17.

•

For operation via handheld, a menu is used.

HART handheld DXR 275 The operation of the HART handheld DXR 275 is described in the manual supplied with

it.

The Group Select menu calls the matrix. The rows are the menu headers. Parameters
are set in the roll-down menus.

•

Keys , navigate up and down the menu.

•

Keys , change to the previous or to the following menu.

•

Parameters are entered by the corresponding keys.
– SEND registers the entries

•

Keys F1 - F4 call the displayed functions, e.g. HOME.

In the procedures described in this manual, the DXR 275 menu lines appear in the
"significance" column. Chapter 10 contains a listing ofmenu positions with corresponding
matrix fields.

Note!

•

The HART device description Version 2.0 for Micropilot FMR 231 must be loaded in
the DXR 275 before the device can be operated by the handheld. Updates of the
device descriptions can be obtained from Endress+Hauser.

I

O

FMR 231:LIC0001
Online
1 >GroupSelect
2PV 8.7m

HELP

BA171Y28

parameter entry keys

LC display with
menu texts

menu selection
keys

function keys

Fig.4.3
Operating elements and key

functions of the HART handheld
DXR 275

F1 F4F2 F3

FMR231: LIC0001
Online

2 PV 8.7m

HELP

1->Group Select

F1 F4F2 F3

FMR231 : LIC0001

2 Linearisation
3 Ext. Calibration
4 Service
5 Operating mode

Group Select

1->Calibration

HOME

F1 F4F2 F3

FMR231: LIC0001

3 Full Calibration
4 Application Parameter
5 Output Damping

Calibration

1 Measured Value

2->Empty Calibration

HOME

BA171Y29

Note!

Chapter 4 Operation Micropilot FMR 231

18 Endress+Hauser