Skipper EML224N-SA Specification sheet

Document number: DM-E001-SB.
Revision:1650
For sw version.:1.28.01
Edition: 2020-02-05
SKIPPER Electronics AS Telephone: [phone]
Enebakkveien 150 Telefax: [phone]
P. O. Box 151, Manglerud E-mail: [e-mail]
0612 Oslo, Norway Co. reg. no:NO-965378847-MVA
www.skipper.no
EML224N-SA Graphic display
Operation and Installation Manual
1 axis / 2 axes
STW- Speed through water
Navigational Speed Log

SKIPPER Electronics AS EML224N Operation and Installation Manual
Edition: 2020-02-05
Page 2 of 64
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Sin nuestra expresa autorización, queda terminantemente prohibida la
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Information
Please visit our web site www.skipper.no for additional information. Here you will nd
product bulletins, software updates, instruction manuals, installation procedures etc.
Important
During installation, consideration must be taken, such that the sensor and cable can be
removed for service purposes. Filling pipes or tubes is not recommended unless strictly
necessary.

EML224N Operation and Installation Manual
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Edition: 2020-22-05 Page 3 of 64
Contents
TERMINOLOGY ...................................................................................................................................................................... 6
Units ..................................................................................................................................................................... 6
Abbreviations ....................................................................................................................................................... 6
1. INTRODUCTION.................................................................................................................................................................. 8
System Summary.................................................................................................................................................. 8
Sensor ................................................................................................................................................................... 8
Electronic unit ...................................................................................................................................................... 8
Operator Unit ....................................................................................................................................................... 8
Fig. 1.1 System Overview................................................................................................................................................ 9
Interfacing........................................................................................................................................................... 10
Outputs ........................................................................................................................................................................... 10
Inputs.............................................................................................................................................................................. 10
Display Unit panel layout................................................................................................................................... 10
Fig. 1.2. Display unit panel layout ................................................................................................................................. 10
2. OPERATION.........................................................................................................................................................................11
Parameter entry................................................................................................................................................... 11
Fig. 2.1 Setting and Parameter Entry Flowchart ............................................................................................................ 11
Operation Screens............................................................................................................................................... 12
Fig. 2.2. Schematic overview of screens and soft key menus........................................................................................ 12
Fig. 2.3. Screen A........................................................................................................................................................... 13
Fig. 2.4. Screen B........................................................................................................................................................... 14
Fig. 2.5 A. Screen Com, Menu 1.................................................................................................................................... 15
Fig. 2.5 B. Screen Com, Menu 1 Error/Warning messages............................................................................................ 16
Fig. 2.6. Screen Com, Menu 2........................................................................................................................................ 17
Fig. 2.7. Screen Com, Menu 2, sensor ........................................................................................................................... 18
Fig. 2.8. Screen Status, Menu 1...................................................................................................................................... 19
Fig. 2.9. Screen Status, Menu 2...................................................................................................................................... 20
Fig. 2.10 Screen Status, Menu 3..................................................................................................................................... 21
Fig. 2.11. Screen Status, Menu 4.................................................................................................................................... 22
Fig. 2.12. Screen Status, Menu 5.................................................................................................................................... 23
Fig. 2.13. Screen Status, Menu 6.................................................................................................................................... 24
Fig. 2.14. Screen Status, Menu 7.................................................................................................................................... 25
Fig. 2.14. Screen Calibration, Menu 1 ........................................................................................................................... 26
Fig. 2.15. Screen Calibration, Menu 2 ........................................................................................................................... 27
Fig. 2.16. Screen Calibration, Menu 3 ........................................................................................................................... 28
Principal Functions............................................................................................................................................. 29
Principles of Electromagnetic Log................................................................................................................................. 29
Power ON/OFF .............................................................................................................................................................. 29
Fixed Key Functions........................................................................................................................................... 29
Screen Select .................................................................................................................................................................. 29
Backlight adjustment...................................................................................................................................................... 29
Day/Night....................................................................................................................................................................... 29
Key Functions..................................................................................................................................................... 29
Menu............................................................................................................................................................................... 29
Trip Reset ....................................................................................................................................................................... 29
Clock and Calendar Settings .......................................................................................................................................... 30
Simulator ........................................................................................................................................................................ 30
Status Screen .................................................................................................................................................................. 30
Nonvolatile Parameter Memory ......................................................................................................................... 30
Options ............................................................................................................................................................... 30
Repeaters/speed and distance......................................................................................................................................... 30

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3. USER MAINTENANCE ..................................................................................................................................................... 31
Sensor Maintenance............................................................................................................................................ 31
Operator Unit Maintenance ................................................................................................................................ 31
4. INSTALLATION ................................................................................................................................................................. 32
Standard System Supply..................................................................................................................................... 32
Hull Fitting ......................................................................................................................................................... 32
Sensor Location.................................................................................................................................................. 32
Part Positioning and Welding ............................................................................................................................. 32
The Electronic Unit ........................................................................................................................................... 33
Sensor/Electronic Unit interconnection.............................................................................................................. 33
Transducer/Electronic Unit PCB ...................................................................................................................... 34
Fig. 4.2. Sensor /Electronic Unit, Wiring diagram......................................................................................................... 34
Operator Unit Installation................................................................................................................................... 35
115/230 V on Combo Terminal board inside Display Unit ........................................................................................... 35
Fig. 4.3. Voltage selection connectors and fuses, Terminal Board, EML224 Operator Unit. ........................................ 36
Fig. 4.4. Back-up Battery Jumper, I/O Board. ............................................................................................................... 37
Back-up Battery Jumper JP200 .......................................................................................................................... 37
Fig. 4.5. Function LEDs, Terminal Board...................................................................................................................... 38
Power indication and function LEDs ............................................................................................................................. 38
Interfacing........................................................................................................................................................... 39
Fig. 4.6. Input/Output Circuitry...................................................................................................................................... 39
Interfacing........................................................................................................................................................... 40
Power failure Relay........................................................................................................................................................ 40
Log Pulse Outputs .......................................................................................................................................................... 41
Analogue Interfaces........................................................................................................................................................ 41
Fig. 4.8. Misc IO examples ............................................................................................................................................ 42
NMEA interface.................................................................................................................................................. 43
Options ............................................................................................................................................................... 43
Repeaters ........................................................................................................................................................................ 43
External Interface Ports ...................................................................................................................................... 43
5. START-UP AND SYSTEM ADAPTION............................................................................................................................ 44
Analogue Outputs and Log Pulse Outputs Range Selection .............................................................................. 44
Language and Units of Measure......................................................................................................................... 44
NMEA Setup ...................................................................................................................................................... 44
Fig. 5.1 9 Pin D-Type NMEA connector XJ402 in cabinet front .................................................................................. 44
NMEA 0183 messages transmit ......................................................................................................................... 45
6. CALIBRATION PROCEDURE ........................................................................................................................................ 46
Heading Error ..................................................................................................................................................... 46
Fig. 6.1 Sea valve alignment .......................................................................................................................................... 46
Speed variations due to drag or mounting tilt. ................................................................................................... 47
Calibration routine:............................................................................................................................................. 47
Activation of the hidden menus ......................................................................................................................... 47
Step 1. Heading error correction: (Only 2 axes version)..........................................................................48
Step 2a. Manual speed calibration/adjustment:.................................................................................................. 48
Step 2b. Semi Automatic calibration: ................................................................................................................ 49
7. SPECIFICATIONS.............................................................................................................................................................. 51
Dimensions......................................................................................................................................................... 51
Functional Properties.......................................................................................................................................... 51
Performance........................................................................................................................................................ 51
Environmental according to IEC60945.............................................................................................................. 52

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8. TROUBLE SHOOTING ..................................................................................................................................................... 53
Basic System Integrity........................................................................................................................................ 53
Installation problems .......................................................................................................................................... 54
Interface problems.............................................................................................................................................. 54
Basic functionality.............................................................................................................................................. 54
Sensor conguration........................................................................................................................................... 55
Fig. 8.1 NMEA Command to sensor at start up. No signal from sensor........................................................................ 55
Typical Status Screen Contents .......................................................................................................................... 56
Fig. 8.1 Typical contents of status screen....................................................................................................................... 56
9. CPU BOARD SETUP PROCEDURE................................................................................................................................ 57
CPU PCA 6742VE ............................................................................................................................................. 57
Master Reset Procedure...................................................................................................................................... 58
Upgrading Software............................................................................................................................................ 58
10. SERVICE............................................................................................................................................................................ 59
11. APPENDIX ......................................................................................................................................................................... 60
Miscellaneous Installation Drawings. ................................................................................................................ 60
Fig. 11.1. EML224 System overview............................................................................................................................. 61
Fig. 11.2. Terminal board connections ........................................................................................................................... 62
Fig. 11.3 Outline dimensions Display Unit.................................................................................................................... 63
Fig. 11.4 Outline dimensions Electronic Unit ............................................................................................................... 64
Fig. 11.5 Cable gland connection................................................................................................................................... 65
12. NOTES................................................................................................................................................................................ 66
13. INDEX................................................................................................................................................................................. 67

SKIPPER Electronics AS EML224N Operation and Installation Manual
Edition: 2020-02-05
Chapter: Terminology
Page 6 of 64
Terminology
Units
Unless otherwise stated, all values shown on the display are as follows:
Distance Nautical miles (nm)
Speed Nautical miles per hour (kn)
Pulse indication Pulses per nautical mile (p/nm)
Temperature Degrees Celsius (oC)
Abbreviations
In addition, the following symbols are used on the runtime screens:
Com Serial communication. Com1 (NMEA), Com2
(NMEA), Com sensor (Signal to/from sensor)
Kn Speed in knots
NMEA NMEA-0183 communication standard with external
equipment
WT Water track, Speed through water STW
STW Speed through water
TRIP Text for trip/total
TText for TEMPerature
V Voltage
In menu / setup screens, the following abbreviations are used:
STWWL Speed through water – water track – longitudinal
value
STWWT Speed through water – water track – transversal
value
PULSE Pulse settings
Average drift oAngular offset in degrees (o)
Outgoing NMEA messages follows:
Messages starting with VM are from Electromagnetic log.
Messages starting with VD are from Doppler log.
VMVLW / VDVLW $VMVLW,.…,Trip and total
VMMTW / VDMTW $VMMTW,…,Water temperature
VMVHW / VDVHW $VMVHW,…,Relative speed through water
VMVBW / VDVBW $VMVBW,....,Multiple speed

EML224N Operation and Installation Manual
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Edition: 2020-22-05 Page 7 of 64
Chapter: 1. Introduction
1. Introduction
System Summary
The SKIPPER EML224 Graphic display is a navigational speed log display for Speed through water.
The system containing sensor (transducer), display (operator) unit and an electronic unit.
The sensor can be delivered in many different versions to t functionality demands and different hull
installations.
The LCD can display a number of parameter in both numerical and graphic forms. The information
from the sensor may includes longitudinal and transversal speeds, drift angle and sea temperature. It is
thus possible to get a very good picture of the vessels total movements.
All IMO requirements are met or exceeded. Comprehensive interfaces are available including NMEA
0183 input and output.
Sensor
There are 2 sensor options:
2 axes EML224 Electromagnetic sensor
1 axis DL1 Doppler sensor
The sensors can be tted into various tank or sea valve options.
Electronic unit
The sensor is interfaced through an electronic unit which also contains the power supply.
This unit is normally mounted near the hull tting, and two twisted pairs of cable are led to the display/
operator unit for digital signal transmission. The power consumption of the electronic unit is max. 35W.
Voltage 115/230 V AC and/or 24 V DC.
Operator Unit
The operator unit contains a colour TFT LCD display, a keyboard with xed keys, soft keys and a
rotating encoder. The function of each soft key depends on the active screen, and the buttons are
labelled on the lower rim of the LCD. The display is backlit and backlight intensity may be adjusted
by the user for both day and night vision. Various user-selectable information layouts, adapted to
typical operational situations, may be displayed continuously on the LCD screen. The operator unit is
normally ush mounted. Operator unit power supply options are 115/230 V AC or 24V DC. The power
consumption is max. 70 Watts at 115/230 V AC and/or 50 Watts at 24V DC.

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Chapter: 1. Introduction
Page 8 of 64
Sea Valve
Double
Bottom
Sensor mounting options:
115/230 V AC
24 V DC
Electronic Unit
24 V DC
115/230 V AC
24 V DC
Accessories:
Interfaces
Repeaters
SKIPPER
IR30DIM
SKIPPER EML224
VDR
Bridge
systems
Conning
display
Radar GPS
Aluminium
Tank
Tank
40 m standard
multicore cable
Sea Valve
Single
Bottom
Fig. 1.1 System Overview
SKIPPER IR300
or SKIPPER
CD401 Speed and
distance repeater

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Edition: 2020-22-05 Page 9 of 64
Chapter: 1. Introduction
Interfacing
The EML224 has various interface possibilities.
Outputs
• 3 log pulse outputs 100/200/400/1000 pulses per nautical mile. See “Log Pulse Outputs” on page
40.
• 3 analogue outputs 0-10 V or 4-20 mA. See “Analogue Interfaces” on page 40.
• NMEA 0183 interface output. See “NMEA interface” on page 42 and “NMEA Setup” on page 43.
• Power failure relay output.
Inputs
• NMEA 0183 interface input. See “NMEA Setup” on page 43.
Display
Soft key text
Soft key(s)
Screen select
Day/Night
Vision
Backlight Encoder
Fig. 1.2. Display unit panel layout
Display Unit panel layout

SKIPPER Electronics AS EML224N Operation and Installation Manual
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Chapter: 2. Operation
Page 10 of 64
2. Operation
When the installation is complete, and power is connected to the operator unit, the system is switched
on/off by a power switch inside the cabinet. The unit can also be switched off by pressing the SYSTEM
Off softkey button on screen A and Screen B.
Note: The unit is still energized. Do not perform any connections before switching off the mains
on the terminal PCB inside the cabinet.
Parameter entry
The xed function buttons and the soft key(s) on the various screens along with the rotating encoder,
facilitates entry of parameters, setpoints and other data. The following owchart illustrates the
procedure for changing settings and entering data. The various screens are shown in detail in the
operation section.
Fig. 2.1 Setting and Parameter Entry Flowchart
Any Screen
Any valid fixed or soft key
Press button
once
Rotate encoder in either
direction to obtain desired
state or setting
Keep button pressed
Advances to next
fixed state or
value
Release
button
Check for
desired result

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Edition: 2020-22-05 Page 11 of 64
Chapter: 2. Operation
Operation Screens
Each of the operation screens contains a graphic picture and one or more menu sets congured on the 6 soft
key buttons. The various screens are selected by keeping the SCREEN SELECT button pressed and rotating
the encoder in either direction. Turning the encoder clockwise cycle the screens in the sequence 1 to 5, and
counter clockwise rotation cycles the screens in the sequence 5 to1. Screens A and B, covering the primary
functions, may also be cycled by repeatedly pressing the SCREEN SELECT button. Screen COM, STATUS
and CALIBRATION is mainly used for setup and function control, and may only be accessed by the rotating
encoder.
Screen
A
Screen
B
Screen
COM
Screen
STATUS
Screen
CALIB
1. Trip reset
system on/off
2. Manual
override
3. Mounting
settings
2. Pulse
settings
4. Units/
Language
5. Analogue
settings
1. Simulate.
average
2. COM setup
6. Speed test
1. NMEA setup
3. Date/Time
1. Calibration
*
Normal route using buttons.
Use encoder to get past “barrier”.
* Use hidden button to activiate.
1. System on/off
*
Fig. 2.2. Schematic overview of screens and soft key menus
“Barrier”
Primary Operation screens
“Barrier”
Setup, function and control screens
*
7. EML/DL
Set up

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Chapter: 2. Operation
Page 12 of 64
Fig. 2.3. Screen A
Soft key Name Range/value Default value Description Activate with hidden
button
1TRIP Reset Trip distance counter reset.
2Not used.
3Not used.
4Not used.
5Not used.
6SYSTEM On/off On System off.
Note! Transversal speed only available with 2 axes set up.

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Chapter: 2. Operation
Soft key Name Range/value Default value Description Activate with hidden
button
1Not used.
2Not used.
3Not used.
4Not used.
5Not used.
6SYSTEM On/off On System off.
Note! Transversal speed only available with 2 axes set up.
Fig. 2.4. Screen B

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Chapter: 2. Operation
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Fig. 2.5 A. Screen Com, Menu 1
Soft
key
Name Range/value Default value Description Activate
with hidden
button
1MENU 1 - 2 1 Chosen menu number 1.
2COM 1 - 2, sensor 1 Serial port number referred by other keys.
3COM ERROR Reset Reset eld for COM errors. The program
memorizes the latest occurred NMEA input error
for further analysis. By using this softkey, it is
possible to reset the error.
4MESSAGE VHW, VLW,
VLW IEC07,
VBW, MTW,
NMEA message selector. Each message may be
controlled individually by soft key 5.
5OUTPUT On/off VHW: on
VLW: off
VLW IEC07: off
VBW: on
MTW: off
Setting for the message in soft key 4 [On/Off]
Note: To congure the serial output of the system,
go through all the messages by pressing soft key
4 and set on/off value of the soft key 5 to disable/
enable a message as required.
6DISPLAY Input, off,
output
Input Selects the information (received from the
external source or transmitted by the EML224) to
be displayed in the “TEXT” window (left side).
• Input: Displays information received from
external source.
• Output: Displays information transmittet by
EML224.
• Off: None.

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Chapter: 2. Operation
Fig. 2.5 B. Screen Com, Menu 1 Error/Warning messages
The right side of the screen shows the status of the available COM ports and the sensor. Showing in
green which pins the ports are connected to on D-SUB type connector XJ402. Active NMEA protocols
are also shown. The text window on the left side, when set to input DISPLAY, indicates what is being
received and recognised by the unit.
• Accepted messages are shown in black type if the sentence is correct.
• Not of a recognised format, the text is orange.
• If something is wrong with the sentence, such as format or checksum, the text is in red.

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Chapter: 2. Operation
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Fig. 2.6. Screen Com, Menu 2
Soft
key
Name Range/value Default
value
Description Activate with
hidden button
1MENU 1 - 2 2 Chosen menu number 2.
2COM 1 - 2, Sensor 1 Serial port # referred by other keys.
3BAUD 1200, 2400, 4800, 9600,
19200, 38400, 57600, 115200.
4800 Baud rate for COM port #n.
4DATA None-7-1, Even-7-1, Odd-7-1,
None-8-1, Even-8-1, Odd-8-1,
None-7-2, Even-7-2, Odd-7-2,
None-8-2, Even-8-2, Odd-8-2,
None, 8, 1 Data format for COM port #n (Parity-
data bits-stop bits).
5
6
Note:
• BAUD and DATA appear dimmed when soft key 2 COM is in “Sensor” mode.

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Chapter: 2. Operation
Fig. 2.7. Screen Com, Menu 2, sensor
Soft
key
Name Range/value Default
value
Description Activate with
hidden button
1MENU 1 - 2 2 Chosen menu number 2.
2COM 1 - 2, Sensor Sensor Serial port # referred by other keys.
3BAUD 1200, 2400, 4800, 9600,
19200, 38400, 57600, 115200.
4800 Baud rate for COM port #n. Yes, only when
MENU 2 is
selected.
4DATA None-7-1, Even-7-1, Odd-7-1,
None-8-1, Even-8-1, Odd-8-1,
None-7-2, Even-7-2, Odd-7-2,
None-8-2, Even-8-2, Odd-8-2,
None, 8, 1 Data format for COM port #n
(Parity-data bits-stop bits).
Yes, only when
MENU 2 is
selected.
5
6
Note: EML 224 Display Unit is receiving the following NMEA sentences on 4800 baud.
• $06 - Temperature in degrees C. (Here: +0284 equals +28,4 degrees C.)
• $01 - Logitudinal speed. (Here: +0019 equals 0,19 knots forward direction, uncalibrated values).
• $02 - Transversal speed. (Here: +0000 equals 0 knots, + = starboard, - = port, uncalibrated values)
Note! Transversal speed only available with 2 axes set up.

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Chapter: 2. Operation
Page 18 of 64
Fig. 2.8. Screen Status, Menu 1
Soft key Name Range/value Default value Description Activate with
hidden button
1MENU 1 - 6 1 Chosen menu number 1.
2SIMULATE On/off Off Built-in simulator on/off.
3WT AVERAGE 0 - 100 10 Number of individual samples to be
averaged in water track mode to provide
better accuracy.
Yes
4
5
6

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Chapter: 2. Operation
Fig. 2.9. Screen Status, Menu 2
Soft key Name Range/value Default
value
Description Activate with
hidden button
1MENU 1 - 6 2 Chosen menu number 2.
2OUT NUM 1 - 3 1 Pulse output channel to be congured by soft
keys 3 and 4.
3PULSES NUM 10, 100, 200,
400, (1000)/nm
400/nm Number of pulses per nautical mile at
this channel (key 2). Channel 1 and 2 are
programmable with 10, 100, 200 and 400
pulses per nautical mile. Channel 3 are
programmable with 10, 100, 200, 400 and
1000 pulses per nautical mile.
4OUT MODE ResultWT,
ForAftWT,
LateralWT,
ResultWT Speed parameter to be output at this channel
(soft key 2).
5 Not used.
6 Not used.
Note: 1000 pulses per nautical mile only on Ch 3 (OUT NUM 3).

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Chapter: 2. Operation
Page 20 of 64
Fig. 2.10 Screen Status, Menu 3
Soft key Name Range/value Default value Description Activate with
hidden button
1MENU 1- 6 3 Chosen menu number 3.
2Not used.
3YR.MONTH Year and month setting.
4DAY Date setting.
5HOURS Hours setting.
6MINUTES Minutes setting.
Note: If a satellite navigator (GPS) giving UTC messages is connected to the NMEA input, the clock and
calendar will be automatically updated and manual adjustment is not required.