Skipper EML1100 User manual

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EML1100/1200 Electromagnetic speed log
User Manual
Part number DM-I001-1.5.2023 Preliminary
Software version 1.0.0

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Contents
EML1100/1200 Electromagnetic speed log.................................................................................... 1
User Manual.................................................................................................................................... 1
2.1. S- Introduction..................................................................................................................... 4
2.2. S- EML Principle of operation............................................................................................. 4
2.3. Terminology......................................................................................................................... 5
2.3.1. Units.............................................................................................................................. 5
2.3.2. Abbreviations................................................................................................................ 5
2.3.3. Alert Symbols ............................................................................................................... 6
2.4. C- Physical Installation........................................................................................................ 7
2.4.1. H- Installation of the screen.......................................................................................... 7
2.4.2. H - Connection of the system...................................................................................... 10
2.4.3. Power requirements: ................................................................................................... 14
2.4.4. F- Installation of the sensor and metalwork................................................................ 14
2.5. Integration to the vessels navigation system...................................................................... 16
2.5.1. C- System selection on startup.................................................................................... 16
2.5.2. C- Connecting to the bridge network.......................................................................... 16
2.6. C- Setup of users and options ............................................................................................ 18
2.6.1. C- Setup of Users........................................................................................................ 18
2.6.2. C- Setup of the system options ................................................................................... 19
2.7. C- Setup screens and configuration of the system............................................................. 19
2.7.1. C- Set up of the network, serial and other communications (Communication setup) 19
2.7.2. S- Output formats........................................................................................................ 21
2.7.3. C-Accepted inputs....................................................................................................... 22
2.7.4. S- Auxilliary outputs................................................................................................... 23
2.7.5. C- Setup of the System parameters............................................................................. 23
2.7.6. C-Setup of Alerts ........................................................................................................ 27
2.8. S- Calibration..................................................................................................................... 29
2.8.1. C- Status...................................................................................................................... 29
2.8.2. -S Installation angle .................................................................................................... 31
2.8.3. C- Temperature offset................................................................................................. 36
2.8.4. C- Auto calibration ..................................................................................................... 36
2.9. S-Verifying, Supporting and Maintenance of your system ............................................... 37

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2.9.1. S- Diagnostic screen ................................................................................................... 37
2.9.2. C- Hardware Reset button........................................................................................... 39
2.9.3. S- Calibration check.................................................................................................... 39
2.9.4. C- Logging screen....................................................................................................... 39
2.9.5. S- Periodical maintenance of the system.................................................................... 41
2.10. C- Runtime displays and setup ........................................................................................ 41
2.10.1. C- Runtime screens................................................................................................... 41
2.10.2. The Runtime setup.................................................................................................... 42
3. Retrofitting to an older system.................................................................................................. 42
4. Getting started guide................................................................................................................. 43
4.1. Getting started:................................................................................................................... 43
4.2. User quick start:................................................................................................................. 43
4.2.1. Vessel speed................................................................................................................ 43
2.1. S- Introduction
The EML1200 is a graphic speed through water only speed log consisting of a display, an
optional electronic buffer unit, and a 60mm sensor- The sensor can be mounted in a valve
(recommended for easy cleaning and maintenance), or in a tank. A number of retrofit solutions
are designed allowing it to replace an older unit.
The User interface is Openbridge web based and can be called up on any terminal within the
same network.
The system can be purchased as a 2 axis system (EML1200) or as a lower cost single axis system
(EML1100) As the hardware is the same on both, the EML1100 can be upgraded to EML1200 at
a later stage using a pay option.
2.2. S- EML Principle of operation
The Electromagnetic Speed log is a compact 2 axis speed through water speed log, The system
introduces an electrogmnetic filed into the water just infront of the sensor, and using flemmings
right hand rule, detects a current between electrodes on the front surface of the sensor.

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This means the system gives an accurate 2 dimensional measurement of the speed of the vessel
through the water at the surface of the sensor/vessel hull. As the hull can drag some water with it,
a calibration is needed to adjust for both angular mounting errors of the sensor, and speed
differences between the sensor reading and the actual speed through water at different speeds.
2.3. Terminology
2.3.1. Units
Parameter
Unit
Abbreviation
Distance
Nautical Miles
nm
Speed
Nautical miles per hour
kn
Pulse speed
Pulses per nautical mil
p/nm
Temperature
Degrees celsius
°C
2.3.2. Abbreviations
Abreviation
Meaning
STW
Speed of vessel relative to the water
SOG
Speed of vessel relative to the Sea bed (Ground)
Temp
Temperature
Trip
Daily trip counter (resetable)
Total
Total distance sailed since installation
LAN
Local area network
NMEA
serial communication standard equivilent to IEC61162-1

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Symbols
User admin
Silence alarm
Adjust parameter
Open help information
Menu
Auxiliary information
Open setting menu
Set standby mode
Alert information
Expand Menu
Sideways direction
Fore Aft direction
2.3.3. Alert Symbols
Symbol
Status
Sound
Unrectified, ,Unacknowledged
2 beep repeated after escalation time
Rectified, Unacknowledged
No beep
Unrectified, Acknowledged
No beep
Rectified, acknowledged (Normal)
No beep

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Silenced alert
No beep for 300 seconds
Responsibility transferred
No beep
Caution
No beep
2.4. C- Physical Installation
2.4.1. H- Installation of the screen
Packing list for this system is as follows:
Part number
desciption
number
of
CU-M001-ZA
10.1” Display including plus for 5 connectors (mounted)
1
M-Kit-CU-M101
Mounting kit containing:
•tapping mounting screws
•mounting bolts
•cable ties
•6
•6
•6
M-Kit-CU-
XBEEP
Buzzer on cable with plug
1
Getting started
sheet
A Sheet with QR codes to the latest manuals, and installation
guides.

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Sensor in
mounting
EML224SXX-SD where XX =
•G for gate valve (1,2)
•T for combo tank (6)
•DB for 100mm seavalve(3,4,5)
•STA for aluminium tank(7)
(number is the valve it fits in)
Retrofit versions
•SN for Simrad NL
•SNFIII for naviknot III
•STXM19 for XM-19 tank
•SV for Naviknot SRD331 or 450D
•SX for skipper PCSV60 valve
•others may follow
1
Optional extras
Sea valve or tank
one of if not retrofit:
1. SB-60-SA 60mm seavalve (recomended)
2. DB-60-SA 60mm double bottom seavalve
3. SB-100-SB 100mm seavalve
4. DB-100-SB 100mm double bottom seavalve
5. SB-100-SA 100mm gatevalve
6. ETNSTC Steel tank
7. ETNALC Aluminium Tank
optional
M-KIT-CU-IP56
rear mounting kit for IP56
optional
GC-202-SA
isolator for USB connections
optional
JB40Pow-SA
Electronic buffer unit
optional
The Display is a 10.1” display and can be mounted from the front (IP22) or from behind
(IP56).The connections can be fastened using provided cable ties. The screen should be firmly
grounded to the ships chassis.

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For rear mounting or if IP56 is required the display should be back mounted using CU-IP56 clips
(Art number M-KIT-CU-IP56).
2 sets of screws are provided, self taping for wood (Art number XXX) for soft surfaces, and bolts
for mounting to metal plate (art XXXX) as shown on the exploded view below.
If Alerts are to be signaled from this unit, and the unit is flush mounted to a console the supplied
external beeper will ensure the high enough volume. If the unit is stand alone, the internal beepr
is loud enough on its own.
The provided Beeper (Supplied with the display), and should be attached to a prepared, clean
area on the rear of the console, with an 8mm hole, using the tape provided.

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ND-799 - Getting issue details... STATUS
2.4.2. H - Connection of the system

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Connection can be direct to the sensor from the sensor port, or via an optional JB40 Electronic
buffer unit. The JB40 unit can be mounted near the sensor or on the bridge, and provides a buffer
and diagnostic port for the unit.
2.4.2.1. C- General Cabling
Cables between the system electronics and the rest of the vessel should use standard twisted
shielded yard supply cabling, Shield of the cables should generally be connected to the
grounding points.
The connectors in use on the Display unit a of type
Connector
type
Connector
plug
Wire type
manufacturers part nr
picture
provided
X1a , X1b
2 pin spring
connector, for
power
Screened 0.5-
2.5mm²
Degson 2EDGKD-5.08-02P-
14-00A(H) Part Nbr.
10020000581
2
X2
USB
All USB type A
All accepted, Note: USB
memory should not have -
voltage connected to chassis,
for permanent fixtures use
isolator Pnr. GC-202-SA
No

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X3, X4
Ethernet RJ45
CAT6 or above,
max 100m
8P8C connector with
ANSI/TIA T568A/B pin
assignment - All accepted
(screened or not screened)
No
X5
External
beeper
3.5mm mono jack
all accepted, but provided as
part of M-KIT-XBEEP
1
X6
7 pin Spring
connector for
Sensor
0.5 to 2.5mm² see
table below
Wago MCS MIDI Classic
231-307/037-000 Part Nbr.
51117461
1
X7a, X7b
6 pin spring
connector for
NMEA and
Aux
0.5-2.5mm²
Degson 2EDGKD-5.08-06P-
14-00A(H) (Part Nbr.
10020000585)
1
Wires should be terminated with appropriate crimp pins cables size should be 0.2-2.5mm2 (28 to
12 AWG)
2.4.2.2. H- Connecting to the Aux outputs
The Display has 2 Aux outputs:
The connector X7a has an opto isolated output, used for Speed pulses, this requires a voltage on
the input of at least 3.3VDC, and this will be switched up and down to provide a speed
Connector X7b has a normally closed relay, that can be used for Power failure alarm (closed
circuit when no power),
Both connectors can be used for other functions defined in the AUX setup screen.
2.4.2.3. C- Network cables
Standard network cables can be used from the system using RJ45 connectors. we recommend
Cat 6 or better cabling. Network cables should not be more than 100m in length.
2.4.2.4. C- Cabling to the sensor
The sensor is supplied with 40 m of cable. This should be guided to a dry area where a junction
box (yard supply or SKIPPER part JB12) should be used to extend the cable to the bridge. The
sensor is a smart sensor and outputs propriety NMEA messages. This standard is based on RS-
422, so cable lengths should not be a problem. The cable can be cut or extended. However,
power is sent down the cable and the sensor should have at least 16 V at the sensor junctions box

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to function normally. If the voltage is low we recomend using the JB40POW unit as a buffer for
both signals, but also AC can be fed to the unit to boost the sensor power.
2.4.2.4.1. Cable Dimensions
Cable
length
Cable type
alternative
Up to 40m
Use supplied cable
Up to 100m
4 Twisted pairs min 0.5mm²
Up to 200m
4 twisted pair min 0.8mm²
Up to 400m
4 twisted pair min 1.5mm²
use 0.8mm² with JB40Pow in middle with AC
power cable.
Upto 600m
Use 1.5mm² and JB40Pow
with AC.
Although the signals on the cable are digital, it is recommended to avoid electrically noisy areas
such as pneumatics and generators.
2.4.2.5. Optional JB40 unit

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2.4.3. Power requirements:
The Display unit and sensor can be powered by 24V from the display, The JB40Pow unit can be
used as a AC DC converter, so that the display is connected powered from the JB40POW,
alternatively the JB40Pow can be powered from the display. Normally the power to the whole
system should be from a circuit breaker near the bridge (2A rating or 50W rating)
2.4.4. F- Installation of the sensor and metalwork
2.4.4.1. Mounting of the metalwork
This must happen in dock and care should be taken to mount the valve/tank such that the sensor
will be flush with nothing to cause turbulence near the sensor. The sensor should be mounted
forward in the vessel, preferably just behind the bulb.
Important: Tank mountings have an orientation (an arrow that must point forward).
The sensor is fully water tight and can be mounted in wet areas such as ballast tanks. Please see
the separate mounting user guide for more details.
2.4.4.2. C- Sensor location.
For proper operation, the sensor should be installed close to the bulb or the bow of the ship,
avoiding areas where it may be damaged by the anchor chain. It is, of course, necessary to select
a part of the hull that is submerged under all load and speed conditions.

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For 2 axis speed logs the transducer should be positioned as deep as possible on the hull. The
transmitting surface of the transducer must be installed horizontally.
A typical recommended area for installation is fore part of the bow thruster room. The sea valve
with sensor can be installed in a ballast tank, but it is not recommended. It is necessary to
position the sensor on a hull section which will ensure a laminar water flow for all angles of
measurement. If such a flat section is not available, the shipyard must construct a suitable bed. If
the vessel is designed with a box keel, this can be used for installation of the sensor. In this case,
special length hull fitting and sensor may be ordered from SKIPPER. Before hull fitting
installation procedure is initiated, always check that the hull fitting valve can be properly
operated and that the sensor can be removed in the selected location. See installation manual for
the valve solution for more information.
2.4.4.3. F- Sensor mounting
Please see the installation manual for the valve. Installation may differ between the different
valve solutions available.
The sensor can be mounted and powered in air and water. Briskly rubbing the face of the sensor
will show changes in values in the speed. It is very important that the sensor is mounted in the
correct orientation, (especially single axis units). In a tank, the arrows should point forward. On a
ball valve, the flat area should point on the port side.
Tip: Placing a large flat straight pole on the flat area will allow accurate adjustment.
Alternatively a laser level can be used to get accurate orientation on a remote bulkhead.

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Small errors in angle can be calibrated, but care should be taken to get this as accurate as
possible. Each time the sensor is lifted or repositioned, the angular offset should be checked.
2.4.4.4. S- Sensor maintenance
The EML sensor requires regular cleaning as growth on the front of the sensor will show slower
speeds. The calibration can be adjusted to compensate.
Do not paint or coat the front of the sensor
2.5. Integration to the vessels navigation system
the EML1100/1200 are designed to simply integrate in the modern bridge. The unit supplies 2
networks, 2 NMEA input and output, an Aux-pulse and Aux-relay output. In addition 2USB’s
can be used for connection to memory stick or printers. USB is tightly controlled.
All settings on the system are password controlled with 4 levels of security.
•No user: view only
•User: Control operational functions
•Service: Change settings
•Admin: as service but with User configuration control.
All levels above user will default to user after 6 hours with no interaction.
2.5.1. C- System selection on startup
The EML1200 can be supplied fully setup, or the system type can be selected on site using a
code number. If the system has not been setup a setup screen will show on startup. Here you
must enter the supplied code for the system and then the system will setup. If this code is not
availalble it can be downloaded from skipper website or by using the QR code that shows on the
screen.
2.5.2. C- Connecting to the bridge network
The System is built up to meet many of the current and future cybersecurity standards, although
the obligatory standard is IEC-61162-450 and IEC61162-460. The system is set up with a secure
area and public area. The vessels network only has access to the public area. All data not
following the -450 standard will be encrypted.

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2.5.2.1. C- Network
The system has 2 independent network ports, both communicate with both TCP/IP and multicast
(UDP) (IEC61162-450) this allows the system to be connected to the ships internal networks.
The system will exert a maximun load of of ??20??kB7s (kilobytes per second) and will tolorate
a data traffic of up to ??20??Mbits per second. The system will exert/receive a maximum load of
??40?? datagrams/second.
IP Address: The IP addresses can be assigned in the communication setup pages, but are by
default 172.16.1.50, and 172.16.2.51.
SFI (System Function ID): Each device has its own identifier (SFI) and the systems can then
identify who they are and who they are talking to. These should be unique within a vessel and
will start with an identifier of VM. Default is VM0112
The system contains a log of errors following the IEC61162-450 standard. This can be accesed
by sending the following command to the systemPSKPVMPCGTERR,9*nn This will return
error numbrs 70-84 with the number of occurences
$PSKPERRORTABLE,70,71,72,73,74,75,76,77,0,0,0,0,0,0,0,0*1E where the following 0,
indicate the number of occurances
$PSKPERRORTABLE,78,79,80,81,82,83,84,0,0,0,0,0,0,0*23

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Error
number
Error type
Error
number
70
Too long UDP message or checksum error
78
Total rejected
messages
71
Error missing tag or tag checksum
79
Header (Wrong
UdPbC)
72
Error in tag format (only s:,n:,d:,g:, tag not
=0000, n=4 digits)
80
Image Block size
error
73
Tag framing errors /missing or empty tag, ,,
or too long tag (>80)
81
Missing Datagram
74
incorrect NMEA length (overflow)
82
Invalid Header
(RaUdP)
75
UDP datagram length (overflow)
83
Udp Overflow
(>1460 Byte)
76
Error in msg format; no $ or !, no CRLF, ID
not 5 characters (except $P)
84
Total Rejected
77
Bad sensor data (too low quality)
2.5.2.2. C- DMZ
The Ships DMZ is intended to be used for transfer of data and software upgrades. These
functions are still under development . Contact SKIPPER for more details.
2.6. C- Setup of users and options
2.6.1. C- Setup of Users
The system is supplied with 2 users Admin with password Admin Service with password Service
and User with password User. These should be changed.
The default is NoUser , and clicking on the user icon will allow a password and username to be
entered / changed.

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The Admin user on entering manage account option will be allowed to administrate users and
add options. Other user levels will have be able to change their passwords.
Passwords can be changed from a central system using encrypted commands.
2.6.2. C- Setup of the system options
System options are selected from the Admin manage account page. Adding the correct code
within the password/code field will enable or disable the options. On enabling, the features of
these options will become available within the setup screens and can be individually activated or
disabled.
2.6.2.1. S- Available Options
2.6.2.1.1. S- Option EML1200
If the system is setup to EML1100 (single axis) then using a pay code, the second axis can be
activated. Part number ??EML1200-opt??
2.6.2.1.2. C- Option Reverse
if selected the system is installed on a vessel that can sail at full speed in both directions. This
switch turns the bow and stern, and rotates the Axis of the system, it is triggered by NMEA
message ‘EPV’, (or AUX input if available).
The command to reverse the vessels direction (when the option is activated) is
$--EPV,R,VM,121,50,Y*nn for rotated direction and $--EPV,R,VM,121,50,N*nn for Normal
direction
2.7. C- Setup screens and configuration of the system
2.7.1. C- Set up of the network, serial and other communications
(Communication setup)

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The left side of the display shows a terminal emulator of the information arriving or leaving the
system. The user can change from output to input, freeze the screen or filter for a particular
message. The colour code of the messages will show their validity.
The Right side has 3 tabs, one for each Communication form.
Serial allows you to choose the Port number, the baud rate (same baudrate for input and output)
and select the sentences to be sent. The standard communications the NMEA outputs are 4800, 8
data bits, 1 stop bit.
The LAN settings allow System function ID (SFI to be set (the same on both LAN ports), the
transmission Group and the IP to be set. The 2 IP addresses cannot be within the same domain
defaults are 172.16.1.50 and 172.16.2.51.
If the user is using only 1 network, then the 2 connectors can be connected so that they share the
same IP address as ETH0.