Miros SM-140 Series User manual

Summary:
The SM-140/02 RangeFinder is a unique high-performance remote sensor for measurement of air
gap, water level, draught and non-directional wave parameters. It utilizes a microwave radar-based
FMCW (Frequency Modulated Continuous Wave) sweep method for measuring air gap. When
delivered with the optional embedded MRU (Motion Reference Unit) to compensate for vessel
heave, the sensor is named SM-140 WaveFinder. For simplicity the name RangeFinder is used
throughout this document.
The sensor enables data to be easily accessible both locally and remotely using modern IoT
technologies.
The sensor is essential for several types of operations and can be integrated both with local and
remote systems. It can also be complimented with various value adding cloud services from Miros.
This manual provides information for installation, operation and user maintenance.
Revision No.
2
50 pages
Description:
Date
2018-12-19
Issued for information
Prepared by
Torbjørn Eide
Checked by
Gunnar Prytz
Approved by
Torbjørn Eide
RangeFinder
User manual
Project/Product
SM-140 - RangeFinder
Classification
Open

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SM-140 - RangeFinder (User manual)
Miros AS
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TABLE OF CONTENTS
1Introduction 5
1.1 Warnings............................................................................................................................. 6
1.2 Abbreviations and definitions.............................................................................................. 6
1.3 Reference documentation................................................................................................... 7
1.4 How to contact Miros AS..................................................................................................... 7
2Quick start guides for advanced users 8
2.1 How to log on ...................................................................................................................... 8
2.2 How to get data (NMEA and/or SER formats) .................................................................... 8
2.3 How to configure using the Web GUI.................................................................................. 8
2.4 How to configure via the command line interface ............................................................... 8
3Product overview 9
3.1 General description............................................................................................................. 9
3.3 Principles of operation....................................................................................................... 12
3.4 Sensor location and orientation ........................................................................................ 16
3.5 Mechanical installation...................................................................................................... 16
3.6 Electrical installation.......................................................................................................... 19
4Operation and configuration using local GUI 24
4.1 Start-up check................................................................................................................... 25
4.2 Overview tab ..................................................................................................................... 25
4.3 Wave tab........................................................................................................................... 26
4.4 WL + Draught tab.............................................................................................................. 27
4.5 Motion tab.......................................................................................................................... 28
4.6 Site configuration tab ........................................................................................................ 29
4.7 Network configuration tab ................................................................................................. 30
4.8 Output configuration tab.................................................................................................... 31
4.9 Time configuration tab....................................................................................................... 32
4.10 Wave configuration tab ..................................................................................................... 32
4.11 WL + Draught configuration tab........................................................................................ 33
4.12 Advanced configuration tab............................................................................................... 34
4.13 Display tab......................................................................................................................... 35
4.14 Firmware upgrade tab....................................................................................................... 35
5Maintenance 36

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Miros AS
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5.1 Periodic inspections and maintenance ............................................................................. 36
5.2 Troubleshooting and repair............................................................................................... 36
5.3 Software upgrade.............................................................................................................. 36
6Technical data 37
6.1 Health, environment and safety ........................................................................................ 37
6.2 Performance data.............................................................................................................. 37
6.3 Electrical data.................................................................................................................... 38
6.4 Mechanical data................................................................................................................ 38
6.5 Interfaces........................................................................................................................... 38
6.6 Versions ............................................................................................................................ 38
6.7 Accessories and options ................................................................................................... 39
Appendix A Proprietary NMEA formats 40
A.1 PMIRWM –wave parameters........................................................................................... 40
A.2 PMIRWP –wave parameters from time series................................................................. 41
A.3 PMIRLD –wave spectrum ................................................................................................ 43
A.4 PMIRR –RangeFinder data.............................................................................................. 44
A.5 PMIRF –RangeFinder spectrum ...................................................................................... 46
A.6 PMIRW –RangeFinder water level and wave parameters............................................... 46
A.7 PMIRS –RangeFinder wave spectrum, water level and wave parameters ..................... 47
A.8 PMIRWD –RangeFinder water level, wave and draught parameters.............................. 48
A.9 PMIRM –RangeFinder motion.......................................................................................... 50

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Miros AS
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1 Introduction
The SM-140/02 RangeFinder is a unique high-performance remote sensor for measurement of
air gap, water level, draught and non-directional wave parameters. It utilizes a microwave radar-
based FMCW (Frequency Modulated Continuous Wave) sweep method for measuring air gap.
When delivered with the optional embedded MRU (Motion Reference Unit) to compensate for
vessel heave, the sensor is named SM-140 WaveFinder. For simplicity the name RangeFinder
is used throughout this document.
Typical areas of application are:
•Air gap and draught
•Ocean wave profiles and tidal variations
•Motion compensated wave monitoring (ship-borne system)
•Water level in dams, rivers, canals and lakes
•Bridge clearance
The sensor is available in four versions:
•SM-140/W/02 RangeFinder with wide beam (range 1 m - 23 m)
•SM-140/WWF/02 WaveFinder with wide beam (range 1 m - 23 m)
•SM-140/N/02 RangeFinder with narrow beam (range 3 m - 95 m)
•SM-140/NWF/02 WaveFinder with wide beam (range 3 m - 95 m)
The sensor enables data to be easily accessible both locally and remotely using modern IoT
technologies.
The sensor is essential for several type of operations and can be integrated both with local and
remote systems. It can also be complimented with various value adding cloud services from
Miros.
This manual provides information for installation, operation and user maintenance.
Wide beam model SM-140/W/02
Narrow beam model SM-140/N/02
Figure 1.1 SM-140 RangeFinder

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Miros AS
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1.1 Warnings
Although the SM-140 RangeFinder is constructed for measurements in a harsh environment, it
is a delicate instrument and will operate according to specifications only if installed and treated
properly and in accordance with this user manual.
Do not attempt to dismantle the unit. The sensor is a precision instrument and shall not be
subject to field service by operator's personnel unless pre-approved by Miros. Do not modify or
substitute parts in the instrument. Contact Miros Support or Miros’ representative for repairs.
Do not operate the equipment in the presence of flammable gases or fumes. Operation of any
electrical instrument in such an environment constitutes a definite safety hazard. The sensor
must be installed in a safe area or shut down in presence of an explosive gas atmosphere.
1.2 Abbreviations and definitions
Term
Explanation
ARM processor
An ARM processor is one of a family of CPUs (Central Processing Unit)
based on the RISC (Reduced Instruction Set Computer) architecture
developed by Advanced RISC Machines (ARM)
BB
Baseband
Beat (frequency)
A beat is an interference between two signals of slightly different
frequencies, perceived as periodic variations in signal strength whose
rate is the difference between the two frequencies.
The beat frequency is used for analyzing transmitted and received echo
signal in the sensor.
Capillary wave
A capillary wave is a small, free surface-water wave with such a short
wavelength that its restoring force is the water’s surface tension.
Capillary waves are often referred to as ripples
Chirp
Chirp is a signal in which the frequency increases
('up-chirp') or decreases ('down-chirp') with time
COC
Certificate of Conformance (part of shipment)
DDS
Direct Digital Synthesizer (DDS) is a type of frequency synthesizer used
for creating arbitrary waveforms from a single, fixed-frequency reference
clock.
FMCW
Frequency Modulated Continuous Wave –a distance measurement
principle used by radars
GUI
Graphical User Interface
Hamming Window
A mathematical function optimized to minimize the maximum (nearest)
side lobe
IEC
International Electrotechnical Commission
IF
Intermediate Frequency
IP
IP address
Ingress Protection
Numerical label assigned to each device connected to a network
IQ-mixer
Quadrature IF Mixer. It provides two IF signals with equal amplitudes
which are in phase quadrature. Used in generating the beat frequency
Microwave
Electromagnetic wave in the range of 0.0001 –0.3 m
MRU
Motion Reference Unit
NMEA or NMEA 0183
Combined electrical and data specification for communication
PE
Protective Earth
PLL
Phase Locked Loop. An electronic circuit consisting of a variable
frequency oscillator and a phase detector that generates an output
signal whose phase is related to the phase of an input "reference" signal.
RS-232
(EIA-232) communication standard for single-ended data transmission

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Miros AS
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RS-422
(EIA-422) communication standard for differential data transmission,
multi-drop
TCP/IP
Transmission Control Protocol/Internet Protocol, a common connection-
oriented communication protocol
1.3 Reference documentation
[1] SM-140/001/DR SM-140/W/01 RangeFinder - General arrangement
[2] SM-140/009/DR SM-140/N/01 RangeFinder - General arrangement
[3] SM-140/02 RangeFinder - Data sheet
[4] SM-140/02 WaveFinder - Data sheet
[5] SM-140/006/DD SM-140 - EC Declaration of Conformity (CE Marking)
1.4 How to contact Miros AS
Norway
Corporate headquarters
Miros AS
Solbråveien 20
NO-1383 Asker
Norway
Phone: [phone]
Fax: [phone]
E-mail: off[email protected]
www.miros-group.com
UK
Miros Scotland Ltd.
Aberlan House. Woodburn Road
Blackburn Industrial Estate
Aberdeen AB21 0RX
United Kingdom
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
Service & Support
Phone: [phone]
UK
Phone: [phone]
E-mail: [e-mail]
www.miros-group.com/service-support

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Miros AS
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2 Quick start guides for advanced users
This chapter contains information for advanced users. For non-skilled users it is recommended
to read the complete user manual.
2.1 How to log on
Default IP address: 192.168.1.2 (or as stated on COC following the shipment)
If IP address is not known, connect to J11 Service port (RS232 115200,n,8,1).
At command prompt (RangeFinder>) type config network wired to obtain the configured IP
address.
2.2 How to get data (NMEA and/or SER formats)
Connect to TCP/IP port 4001 using e.g. PuTTY.
2.3 How to configure using the Web GUI
•Configure site parameters (including Application type)
•Configure output
Change the appropriate settings and click save. A simple online help/guideline is shown when
clicking the help button.
When prompted for credentials please enter the following:
Username: admin
Password: admin
2.4 How to configure via the command line interface
Use the J11 Service port (RS232 115200,n,8,1) or connect via TCP/IP port 22 on the Ethernet
interface.
Type help to list commands/command groups. Type command group to list sub-commands etc.,
e.g. config or config site. To change a parameter, add a value to the command/sub-command,
e.g. config site height 30 to set sensor mounting height to 30 m.

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Miros AS
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3 Product overview
3.1 General description
The Miros SM-140 RangeFinder is a microwave radar-based sensor operating at 9.6 GHz
centre frequency. It uses the FMCW principle to measure the vertical distance from the sensor
antenna to the water surface.
The sensor is available in four versions:
•SM-140/W/02 RangeFinder with wide beam (range 1 m - 23 m)
•SM-140/WWF/02 WaveFinder with wide beam (range 1 m - 23 m)
•SM-140/N/02 RangeFinder with narrow beam (range 3 m - 95 m)
•SM-140/NWF/02 WaveFinder with wide beam (range 3 m - 95 m)
Typical applications are tide and wave measurements from onshore and offshore installations
and bridge clearance measurements.
Figure 3.1 Wave measurements onboard ships and tide measurements are typical
Miros RangeFinder applications
The SM-140 RangeFinder emits a frequency modulated, continuous wave (FMCW or chirp)
microwave signal and receives an echo from the water surface. The signal propagation delay
given by the distance from the antenna to the water surface causes a beat (interference pattern)
between the transmitted and received signal. The beat signal frequency, which is proportional to
the distance, is measured and converted to an accurate distance by the RangeFinder.
The 9.6 GHz operating frequency makes the SM-140 RangeFinder less sensitive to unwanted
influence from fog, rain and water spray than microwave sensors operating at higher
frequencies and laser-based sensors. This can be of importance particularly for the longer-
range applications.
The planar patch antennas result in small physical dimensions and low weight. The SM-140/W
wide antenna version has a beam-width of 10 degrees while the SM-140/N narrow version has
5 degrees beam-width.

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Miros AS
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SM-140/N rear view
SM-140/N front view (antenna side)
Figure 3.2 SM-140/N RangeFinder
The SM-140 RangeFinder has a wide range of user selectable signal processing, detection and
tracking parameters. By proper parameter settings the sensor performance can be optimised for
different applications.
The digital signal output may either be continuous at a user selectable rate, or single
measurements in response to user request. The sensor transmits Miros proprietary NMEA
formats over TCP/IP port 4001.
The old SER formats may also be selected by the user for compatibility with previous models of
the Miros SM-140 RangeFinder.
SM-140/W rear view
SM-140/W front view (antenna side)
Figure 3.3 SM-140/W RangeFinder