Endress and Hauser and Co FMR09 User Manual
Technical Information
Micropilot S FMR540
Level-Radar
Smart Transmitter for continuous and non-contact precision level
measurement. For custody transfer and inventory control
applications with NMi and PTB approvals.
Application
The Micropilot S is used for highly accurate level
measurement in storage tanks and can be applied in
custody transfer applications. It meets the relevant
requirements according to OIML R85 and API 3.1B.
Typical areas of application are:
• The with parabolic antenna is excellently suited for
free space applications up to 40 m (131 ft).
• The with horn antenna is suitable for free space
applications that disallow the use of a parabolic
antenna due to tank/nozzle geometry.
The FMR540 with DN200 (8") parabolic antenna offers
high beam focussing of 4° and is therefore ideally suited
to applications with nozzles situated close to the tank
wall.
The FMR540 with DN100 (4") horn antenna is designed
for all small nozzles sizes.
Your benefits
• Better than 1 mm accuracy.
• National approvals (NMi, PTB) for custody transfer.
• Applicable as stand-alone system or tied into tank
gauging systems via the Tank Side Monitor NRF590.
• Cost-effective and simple installation via 4-wire cable
with HART and 24V DC intrinsically safe power
supply.
• low cost, low weight UNIversal flanges
• top target positioners to compensate any flange
inclination
• easy on-site operation via menu-driven alphanumeric
display
• easy commissioning, documentation and diagnostics
via operating software (ToF Tool - Fieldtool Package or
FieldCare)
• HART communication.
TI412F/00/en/09.06
Table of contents
Micropilot S FMR540
Function and system design. . . . . . . . . . . . . . . . . . . . . 3
Measuring principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Equipment architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Custody transfer applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Integrated in tank gauging system . . . . . . . . . . . . . . . . . . . . . . . . . 6
Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Measured variable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Antenna selection for Micropilot S-series . . . . . . . . . . . . . . . . . . . 7
Measuring range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Measuring range depending on sensor type and media group . . . . . 8
Measuring conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Operating frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Output signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Signal on alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Linearization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Galvanic isolation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Auxiliary energy . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Terminal assignment 4…20 mA with HART . . . . . . . . . . . . . . . . 11
Load HART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Cable entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Current consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Residual ripple HART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Max noise HART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
mm accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Overvoltage protector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Performance characteristics. . . . . . . . . . . . . . . . . . . . 13
Note . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Reference operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Maximum measured error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Software reliability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Hysteresis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Long-term drift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Influence of ambiente temperature . . . . . . . . . . . . . . . . . . . . . . . 13
Proof of accuracy of custody transfer versions . . . . . . . . . . . . . . . 13
Non-repeatability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Inventory control versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Operating conditions: Installation . . . . . . . . . . . . . . . 14
Installation instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Beam angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Installation on tank FMR540 . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
FMR540 with top target positioner . . . . . . . . . . . . . . . . . . . . . . . 18
Integrated air purge connection . . . . . . . . . . . . . . . . . . . . . . . . . 18
Operating conditions: Environment . . . . . . . . . . . . . . 19
Ambient temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Storage temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Climate class . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Degree of protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Vibration resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Cleaning of the antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Electromagnetic compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Approvals for custody transfer applications . . . . . . . . . . . . . . . . . 19
Operating conditions: Process . . . . . . . . . . . . . . . . . . 19
Process temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Process pressure limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Antenna core . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Wetted parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Optional (top target positioner) . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Mechanical construction . . . . . . . . . . . . . . . . . . . . . . 20
Design, dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Type plate / type plate for custody transfer applications . . . . . . . 22
Endress+Hauser UNI flange . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Human interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Operation concept . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Display elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Operating elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
On-site configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Remote configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Certificates and approvals . . . . . . . . . . . . . . . . . . . . . 29
CE approval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Ex approval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
External standards and guidelines . . . . . . . . . . . . . . . . . . . . . . . . 29
Type approvals for custody transfer approvals . . . . . . . . . . . . . . . 29
RF approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Ordering information. . . . . . . . . . . . . . . . . . . . . . . . . 30
Micropilot S FMR540 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Ordering structure (continued) . . . . . . . . . . . . . . . . . . . . . . . 31
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Weather protection cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Sensor alignment tool for Target Positioner (alignment device option)
only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Commubox FXA191 HART . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Commubox FXA195 HART . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Commubox FXA291 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
ToF Adapter FXA291 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Fields of activities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Technical Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Certificates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Patents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
2 Endress+Hauser
Micropilot S FMR540
Function and system design
Measuring principle The Micropilot is a "downward-looking" measuring system, operating based on the time-of-flight method. It
measures the distance from the reference point (process connection) to the product surface. Radar impulses are
emitted by an antenna, reflected off the product surface and received again by the radar system.
gauge reference height
(GRH)
D
20 mA
100%
E
F
flange:
referencepoint of
measurement
L
datum plate (Gauge Reference plate)
4mA
0%
L00-FMR250xx-15-00-00-en-001
Input
The reflected radar impulses are received by the antenna and transmitted into the electronics. A microprocessor
evaluates the signal and identifies the level echo caused by the reflection of the radar impulse at the product
surface. The unambiguous signal identification is accomplished by the PulseMaster® software, based on many
years of experience with time-of-flight technology.
The distance D to the product surface is proportional to the time of flight t of the impulse:
D = c · t/2,
with c being the speed of light.
Based on the known empty distance E, the level L is calculated:
L = E – D
Reference point for "E" is the lower surface of the process connection. For highly precise level measurements,
it is of crucial importance to have a stable mounting position (GRH) of the radar gauge or to compensate for
the effects of tank movements during filling and emptying cycles. This can be done by either using the dip table
integrated in the Micropilot S FMR53x / 540 or by using the compensation methods integrated into the Tank
Side Monitor NRF590.
The Micropilot is equipped with functions to suppress interference echoes. The user can activate these
functions. They ensure that interference echoes (e.g. from edges and weld seames) are not interpreted as level
echo.
Output
The Micropilot is commissioned by entering an empty distance E (=zero), a full distance F (=span) and an
application parameter. The application parameter automatically adapts the instrument to the measuring
conditions. The data points “E” and “F” correspond with 4mA and 20mA for instruments with current output.
They correspond with 0 % and 100 % for digital outputs and the display module. For inventory control or
custody transfer applications, the measurement should always be transferred via digital communication
(HART).
A linearization with max. 32 points, based on a table entered either manually or semi-automatically, can be
activated locally or remotely. This function provides a measurement in engineering units and a linear output
signal for spheres, horizontal cylindrical tanks and tanks with conical outlet.
Endress+Hauser 3
Equipment architecture Stand-alone
The instrument provides a 4…20 mA output with HART protocol.
The complete measuring system consists of:
Micropilot S FMR540
PLC
- Fieldcare
- ToF Tool - Field Tool Package
Commubox
FXA191 (RS232C)
or FXA195 (USB)
Commubox
FXA291 (USB)
ToF Adapter
FXA291
- Fieldcare
- ToF Tool - Field Tool Package
service adapter
FXA193 (RS232C)
HART
HART
2x transmitter power
supply unit
RN221N
FXA195
or
DXR375
FIELD COMMUNICATOR
FIELD COMMUNICATOR
DELTABAR:* * * * * * * *
DELTABAR:* * * * * * * *
ONLINE
ONLINE
1 QUICK SETUP
1 QUICK SETUP
2 OPERATING MENU
2 OPERATING MENU
3 PV 352 mbar
3 PV 352 mbar
4 SV 0 °C
4 SV 0 °C
HELP SAVE
HELP SAVE
Page
Page
Up
Up
DeleteBksp
DeleteBksp
Page
Page
On
On
A B C
D E F
A B C
D E F
# % &
# % &
1
3
1
3
2
2
Paste
Hot Key
Paste
Hot Key
Copy
Copy
G H I
J K L
M N O
G H I
J K L
M N O
6
6
5
5
4
4
Insert
+ Hot Key
Insert
+ Hot Key
P Q R S
T UV
W XY Z
P Q R S
T UV
W XY Z
8
8
9
9
7
7
, ( )‘
_ < >
+ * /
, ( )‘
_ < >
+ * /
-
-
.
0
.
0
375
375
dsdmdm
dsdmdm
df das.
df das.
asdas fa
asdas fa
asas la.
asas la.
HART handheld
DXR375
operating and
display modull
VU331
ENDRESS + HAUSER
%
+–
E
L00-FMR53xxx-14-00-06-en-002
On-site Configuration
• with display and operating module VU331,
• with a Personal Computer, FXA193 and the operating software "ToF Tool - FieldTool Package" respectively
"FieldCare".
The ToF Tool is a graphical operating software for instruments from Endress+Hauser that operate based on
the time-of-flight principle (radar, ultrasonic, guided micro-impulse). It assists with commissioning, securing
data, trouble shooting and documentation of the measuring point.
Remote Configuration
• with HART handheld DXR375,
• with a Personal Computer, Commubox FXA195 and the operating software "ToF Tool - FieldTool Package"
respectively "FieldCare".
Remote operation
• With a Personal Computer, NRF590 (Tank Side Monitor) and the inventory management software, e.g.
"FuelsManager".
4 Endress+Hauser
Micropilot S FMR540
System integration via Fieldgate
Vendor Managed Inventory
By using Fieldgates to interrogate tank or silo levels remotely, suppliers of raw materials can provide their
regular customers with information about the current supplies at any time and, for example, account for them
in their own production planning. For their part, the Fieldgates monitor the configured level limits and, if
required, automatically activate the next supply. The spectrum of options here ranges from a simple purchasing
requisition via e-mail through to fully automatic order administration by coupling XML data into the planning
systems on both sides.
Remote maintenance of measuring equipment
Fieldgates not only transfer the current measured values, they also alert the responsible standby personnel, if
required, via e-mail or SMS. In the event of an alarm or also when performing routine checks, service
technicians can diagnose and configure connected HART devices remotely. All that is required for this is the
corresponding HART operating software (e.g. ToF Tool - FieldTool Package, FieldCare, ...) for the connected
device. Fieldgate passes on the information transparently, so that all options for the respective operating
software are available remotely. Some on-site service operations can be avoided by using remote diagnosis and
remote configuration and all others can at least be better planned and prepared.
Remote configuration/diagnostics
via HART Client:
- ToF Tool - FieldTool
Package
- FieldCare
...
e.g. 2 x RN221N-B …
ENDRESS+HAUSER
RN 221N
ENDRESS+HAUSER
RN 221N
Channel 1 Channel 2
-
Fieldgate
FXA520
Analogue
Ethernet
GSM
Remote monitoring
Multidrop-Connector
Fieldgate
FXA520
FXN520
FXN520
FXN520
20...45 V
DC
.
HTTP script
Web browser
…
L00-FXA520xx-14-00-06-en-009
Note!
The number of instruments which can be connected in mutidrop mode can be calculated by the "FieldNetCalc"
program. A description of this program can be found in Technical Information TI 400F (Multidrop connector
FXN520). The program is available form your Endress+Hauser sales organisation or in the internet at:
"www.endress.com É Download" (Text Search = "Fieldnetcalc").
Integration into the Asset Management System
The HART interface allows the integration into the AMS® (Asset Management System) from Emerson.
Custody transfer applications The Micropilot S is suitable for custody transfer and inventory control applications.The on-site testing has to be
done in compliance with the applicable regulatory standards.The Micropilot S can be sealed after successful onsite calibration to be protected against any access to the electronics compartment and any changes of software
settings. If the Micropilot S is used for custody transfer or inventory control, any temperature influence on the
tank shell height can be compensated for using the Tank Side Monitor. In addition, the vertical movement of
the gauge reference point due to the hydrostatic tank deformation can be compensated in the Tank Side
Monitor. A Tank Side Monitor can provide 24 VDC for a Micropilot S. The Tank Side Monitor can
communicate with up to 6 devices via HART Multidrop.
Endress+Hauser 5
Micropilot S FMR540
Integrated in tank gauging system
The Endress+Hauser Tank Side Monitor NRF 590 provides integrated communications for sites with multiple
tanks, each with one or more sensors on the tank, such as radar, spot or average temperature, capacitive probe
for water detection and/or pressure sensors. Multiple protocols out of the Tank Side Monitor guarantee
connectivity to nearly any of the existing industry standard tank gauging protocols. Optional connectivity of
analog 4...20 mA sensors, digital I/O and analog output simplify full tank sensor integration. Use of the proven
concept of the intrinsically safe HART bus for all on-tank sensors yields extremely low wiring costs, while at
the same time providing maximum safety, reliability and data availability.
Fuels Manager
Software
RTU 8130
(remote
terminal
unit)
Supply voltage:
16…253 VAC
HART
4 wire
Tank Side Monitor
Pressure
Micropilot S Prothermo
L00-FMR53xxx-14-00-06-en-004
6 Endress+Hauser
Micropilot S FMR540
Input
Measured variable The measured variable is the distance between the reference point (GRH, refer to fig. → ä 3) and a reflective
surface (i.e. medium surface).
The level is calculated based on the tank height entered.The level can be converted into other units (volume,
mass) by means of a linearization. In order to compensate for non-linear effects like movement of the tank roof,
an additional correction table (diptable) can be entered.
Antenna selection for Micropilot S-series
It is essential for each and every application and installation to select the right antenna type.
The antenna selection depends on the following criteria:
• Type of application (i.e. free space vs. stilling well)
• Installation possibilities (size, location and height of nozzle)
• Properties of the product stored in the tank (radar reflectivitiy, vapor pressure, temperature, etc.)
• The Micropilot S FMR540 offers 2 radar antennas
For stilling well applications, FMR532 should be selected (see TI344F)
For measuring mediums with a low reflectivity (i.e. asphalts, bitumen and etc.), FMR533 should be selected
(see TI344)
Horn antenna
With DN100 (4") horn, this antenna is suitable for
most of custody transfer applications up to the
measuring distance of 20m/30m (depending on
dielectric constant). With the narrow beam angle (8
deg) , compared to FMR530, this horn antenna is
suitable for closer to tank wall application (→ ä 15)
When installing, it is essential that the horn extends
below the nozzle (→ ä 16).
L00-FMR530-10-00-00-yy-001
Parabolic antenna
The parabolic antenna offers the smallest beam angle
(4 deg) for free space applications. It also covers
longest measuring distance of 40m (dielectric
constant >
1.8). It is ideal for applications close to the
tank walls, where nozzles are available. When
installing, it is ideal that the parabolic antenna is
installed in the position where the reflector protrude
from the nozzle (→ ä 18). For measuring mediums
with a low reflectivity, such as asphalts and bitumen,
FMR533 (please, refer to TI344F) is recommended.
L00-FMR540xx-10-08-06-xx-001
Endress+Hauser 7
Micropilot S FMR540
Measuring range The usable measuring range depends on the size of the antenna, the reflectivity of the medium, the mounting
location and possible interference reflections.
To achieve an optimised signal strength it is recommended to use an antenna with as large as possible diameter
(DN200/8" parabolic antenna).
The following tables describe the groups of media as well as the achievable measuring range as a function of
application and media group. If the dielectric constant of a medium is unknown, it is recommended to assume
media group B to ensure a reliable measurement.
Table 1:
The following table describes the media groups and the dielectric constant
Media group DC (εr) Examples
A 1.4 ... 1.8 non-conducting liquids, e.g. liquefied gas, ...
B 1.8 ... 4
C 4 ... 10 e.g. concentrated acids, organic solvents, esters, aniline, alcohol, acetone, …
D > 10 conducting liquids, e.g. aqueous solutions, dilute acids and alkalis
1) Treat Ammonia NH3 as a medium of group A.
non-conducting liquids, e.g. benzene, oil, toluene, white products, black products,
crudes, bitumen/asphalts, ...
εr.
1)
Measuring range depending on sensor type and media group
Media group Horn antenna
without sensor extension
Measuring range Measuring range
A DC (
B DC (
C DC (
D DC (εr) > 10 0.6 ... 30 m 0.8 ... 40 m
Max. measuring range with
cudstody transfer approval
εr) = 1.4 ... 1.8 −−
εr) = 1.8 ... 4 0.6 ... 20 m 0.8 ... 40 m
εr) = 4...10 0.6 ... 30 m 0.8 ... 40 m
NMi: 20 m / 65 ft
PTB: 20 m / 65 ft
Parabolic antenna
without sensor extension
NMi: 25 m / 82 ft
PTB: 30 m / 98 ft
Note!
For stilling well applications Micropilot S FMR532 is recommended (see Technical Information TI344F).
8 Endress+Hauser
Micropilot S FMR540
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.
• In case of media with a low dielectric constant (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 corrosion and build-up, the end of the measuring range should not be chosen any
closer than A (see Fig.).
• B requests the smallest possible measuring range (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.
• Depending on its consistence, foam can either absorb microwaves or reflect them off the foam surface.
Measurement is possible under certain conditions.
A
100%
B
0%
FMR540 (Horn Antenna without extension) 0.6 (23.6) > 0.5 (> 20) > 300 (> 12)
FMR540 (parabolic Antenna without extension) 0.8 (31.5) > 0.5 (> 20) > 300 (> 12)
C
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).
Operating frequency • FMR540: 26 GHz ultra wideband system
L00-FMR54xxx-17-00-00-yy-009
A [m (inch)] B [m (inch)] C [mm (inch)]
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Micropilot S FMR540
132
4
5
132
4
5
Output
Output signal • 4…20 mA with HART protocol (e.g. for multidrop connection to the Tank Side Monitor NRF590): this
version can be operated via the PC operating software ToF Tool and FieldCare. The instrument supports both
point-to-point and multidrop operation.
Signal on alarm Error information can be accessed via the following interfaces:
• Local display:
– Error symbol
– Plain text display
– LED’s: red LED continuously on = alarm, red LED flashes = warning
• Current output
• Digital interface
Linearization The linearization function of the Micropilot S allows the conversion of the measured value into any unit of
length or volume. Linearization tables for calculating the volume in cylindrical tanks are pre-programmed.
Other tables of up to 32 value pairs can be entered manually or semi-automatically.
Galvanic isolation 500 V towards ground.
500 V between power supply and signal.
Auxiliary energy
Electrical connection Terminal compartment
• Aluminium housing T12 with separate terminal compartment for:
– standard,
– EEx ia (with overvoltage protection),
The electronics and current output are galvanically isolated from the antenna circuit.
5
4
power supply signal
L00-FMR53xxx-04-00-00-en-001
10 Endress+Hauser
Micropilot S FMR540
1
3
2
4
5
1
3
2
4
5
Terminal assignment 4…20 mA with HART
Tank Side Monitor
NRF590
intrinsicaly safe
NRF 590 i.s. terminal board
terminal board
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
The 4-wire cable is connected to the screw terminals (wire diameter 0.5…2.5 mm) in the terminal
compartment. Use 4-wire twisted pair cable with screen for the connection.Protective circuitry against reverse
polarity, RFI, and over-voltage peaks is built into the device (refer to TI241F »basics for EMC-tests«). Refer to
TI374F for connection to the Tank Side Monitor NRF590.
Connection to Tank Side Monitor NRF590
The Micropilot S is - possibly in combination with other devices - connected
to a tank side monitor in a hazardous area. In this case, it is recommended
D+
S+
SD-
OPT1
OPT2
OPT3
OPT4
+
H
-
+
H
-
+
H
-
+
P
-
RTD
grounding single sided
i.s. module wiring
on Tank Side Monitor
NRF590
Internally
HART
interconnected
sensor
as one HART
fieldbus loop
+
4
-
3
+
2
-
1
For Micropilot
only for
S-series only!
Micropilot S
that you ground the cable screen centrally at the and
connect all devices to the same potential matching line (PML). If, for functional
reasons, a capacitive coupling is required between local earth and screen
(multiple grounding), ceramic condensers with a dielectric strength of min. 1500 V
must be used, whereby the total capacitance of 10 nF must not be exceeded.
Notes on grounding interconnected intrinsically safe devices are provided by
the FISCO model.
12345
Tank Side Monitor
grounding not on
Micropilot S
plant
ground
1234
l00-fmr54xxx-04-00-00-en-002
eff
Connection as a stand alone device
power:
24 VDC
(16…30 V)
12345
Endress+Hauser 11
signal:
24 VDC
A Micropilot S situated in a hazardous area is connected as a
to a situated outside of the
device power supply unit and transmitter
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
5
potential matching line (PML).
plant
ground
1234
single
l00-fmr54xxx-04-00-00-en-001
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