Endress+Hauser micropilot M FMR 231 User manual

micropilot FMR 231
with PROFIBUS-PA
Microwave Level
Measurement
Operating instructions
ENDRESS+HAUSER
MICROPILOT II
IP 65
OrderCode:
Ser.-No.:
Messbereich
Measuring range
U16...36VDC
4...20 mA
max. 20m
Made in Germany Maulburg
T>70°C:
At>85°C
BA 176F/00/en/06.01
Software-Version 2.0
52000540
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!
➀Check installation
1. Check that the alignment mark point
to the tank wall, see also Chapter 2.1.
➁Calibration
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, εr<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.
➂Check 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.
tank wall
distance
greater or
equal to
30 cm
alignment
mark points
to wall
flange
thread
F
E
100%
0%
V H
V3H2 >10:
Short Instructions Micropilot FMR 231-PA
Endress+Hauser

Table of Contents
Notes on Safety . . . . . . . . . . . 3
1 Introduction . . . . . . . . . . . . 5
1.1 Measurement principle . . . . . . 6
1.2 Measuring system . . . . . . . . 8
2 Installation . . . . . . . . . . . . . 9
2.1 Mounting in a tank . . . . . . . . 9
2.2 Mounting in stilling wells . . . . . . 12
2.3 Protective cover . . . . . . . . . 13
3 Connection . . . . . . . . . . . . . 14
3.1 Wiring examples . . . . . . . . . 15
4 PROFIBUS-PA Interface . . . . . . . . 16
4.1 Synopsis . . . . . . . . . . . . 16
4.2 Setting the device address . . . . 17
4.3 Device data base and type files . . 18
4.4 Cyclic data exchange . . . . . . 19
4.5 Acyclic data exchange . . . . . . 20
4.6 Operation . . . . . . . . . . . 24
5 Operation . . . . . . . . . . . . . 25
5.1 On-site operation . . . . . . . . 25
5.2 Remote operation with Commuwin II . 27
6 Calibration . . . . . . . . . . . . . 29
6.1 Basic calibration for tanks . . . . . 30
6.2 Basic calibration for bypass pipes
and stilling wells: . . . . . . . . 32
6.3 Linearisation . . . . . . . . . . 34
6.4 Output/display module . . . . . . 37
6.5 Safety functions . . . . . . . . . 38
6.6 Locking/unlocking the matrix . . . . 39
6.7 Measuring point information . . . . 40
7 Trouble-Shooting . . . . . . . . . . 41
7.1 Self-monitoring . . . . . . . . . 41
7.2 Error messages . . . . . . . . . 42
7.3 Fault analysis . . . . . . . . . . 43
7.4 Application parameter . . . . . . 45
7.5 Echo quality . . . . . . . . . . 46
7.6 False echo suppression . . . . . . 47
7.7 Window suppression . . . . . . . 48
7.8 Plausibility . . . . . . . . . . . 48
7.9 Simulation . . . . . . . . . . . 49
7.10 Reset . . . . . . . . . . . . . 50
8 Maintenance and Repair . . . . . . . 51
8.1 Maintenance . . . . . . . . . . 51
8.2 Repairs . . . . . . . . . . . . 52
8.3 Spare parts . . . . . . . . . . . 53
9 Technical Data . . . . . . . . . . . 55
9.1 Dimensions . . . . . . . . . . . 58
9.2 Derating diagrams . . . . . . . . 59
9.3 Product structure FMR 231E . . . . 60
9.4 Product structure FMR 231A . . . . 61
10 Operating Matrix . . . . . . . . . . 62
10.1 Matrix operation . . . . . . . . . 62
Index . . . . . . . . . . . . . . . 64
Micropilot FMR 231-PA Table of Contents
Endress+Hauser 1

Software History
Software
version Manual edition Device and. software no. Software changes Manual changes
2.0 11.98 8220 Original software.
operable with Commuwin II
software version 2.0
Software History Micropilot FMR 231-PA
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, it is possible that application-related dangers may arise,
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.
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.
Changes or modifications not expressly approved by the party responsible for
compliance could void the user's authority to operate the equipment.
Code Certificate Type of protection Housing
A none none F12
1 PTB (in preparation) ATEX (X) II 1/2 G EEx ia IIC T3...T6 F12
3 PTB (in preparation) ATEX II 2 G Ex ia IIC T3...T6 F12
Table S.1
Certificates for applications in
explosion hazardous areas
ENDRESS+HAUSER
MICROPILOT FMR 231
Order No. FMR 231-
Micropilot FMR 231-PA Sicherheitshinweise
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!
Sicherheitshinweise Micropilot FMR 231-PA
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.
BA176Y05
➀➁
BA176Y06
Fig.1.1
➀ Storage tank
➁ Stilling well
Application Standard, for tanks and stilling wells Hygienic, corrosive-resistant, for tanks
and stilling wells
Housing Housing F12 (standard/EEx ia/Ex IS)
Antenna type PPS antenna PTFE antenna
Inactive length 100 mm/250 mm
Process connection Thread 1½ BSPT (R 1½) or 1½ NPT
Flange DN50/80/100/150/ or ANSI/JIS equivalent
Sanitary connection (in preparation)
Cladding uncladded cladded or uncladded
Process pressure 0...16 bar
PVDF: 0...3 bar
0...16 bar with cladded flange
0...40 bar uncladded flange
Flange temperature –20°C...+120°C; PVDF: –20°C...+80°C –40°C...+150°C
Wetted parts PPS, Viton O-ring,
1.4435 flange
1.4435 or PVDF thread
Uncladded: PTFE and 1.4435 flange/
thread or PVDF thread
Cladded: PTFE only
PPS = Polyphenylene sulphide
Table 1.1
Micropilot FMR 231 versions
Micropilot FMR 231-PA 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 is proportional 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.
The points "E" and "F" correspond to 0% and 100% level for both the digital output and
the display.
F
ED
BA176Y06
datum point
beam
launched
here
inactive
length
datum point
max.level
Fig.1.2
Microwave measurement
principle
1 Introduction Micropilot FMR 231-PA
6 Endress+Hauser

LinearisationA 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 and provides a linear output current 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 or ±0.1% of the range end-value, which ever is
greater.
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 εr. 1.4...1.9
B Non-conducting liquids, e.g. petrochemicals, benzine, oil, toluol, etc.
Dielectric constant εrapprox. 1,9...4
C E.g. concentrated acids, organic solvents, analine, esters, alcohols, acetone, etc.
oil/water mixtures
Dielectric constant εrapprox. 4...10
D Conducting liquids, watery solutions, dilutte acids and alkalis,
Dielectric constant εr> 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
B10 m 33 ft 5 m 16 ft 10 m 33 ft 20 m 67 ft
C15 m 50 ft 8 m 25 ft 10 m 33 ft 20 m 67 ft
D20 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-PA 1 Introduction
Endress+Hauser 7

1.2 Measuring system
Measuring point In the simplest case, the complete
measuring point comprises:
•Micropilot with PROFIBUS-PA protocol
•a segment coupler
•a programmable logic controller (PLC)
•if necessary, a personal computer with
the operating program Commuwin II
•as well as a PROFIBUS-PA terminator.
Number of transmitters The maximum number of transmitters that can be connected to a bus segment depends
upon their current consumption, the power available from the segment coupler and the
bus length, see TI 260F or BA 198F (in preparation). In general, the following applies:
•10 Micropilot FMR 231 for applications in explosion hazardous areas
•max. 32 Micropilot FMR 231 for safe applications.
ENDRESS + HAUSER
VH
+
VH
BA176Y11
PROFIBUS-DP
Personal
computer with
Commuwin II
PLC
segment
coupler
operating
and display
module
VU 330
PROFIBUS-PA
Micropilot with
PROFIBUS-PA
protocol
1 Introduction Micropilot FMR 231-PA
8 Endress+Hauser