5.3_Reference_1_EML500_User_Manual_IM_80B80T10E_29th_Ed.pdf

ii

IM80B80T10E 29th Edition : Dec.18,2015-00

4.4 Setting function .................................................................................................4-9

4.4.1 Speed Limit Setting ........................................................................... 4-9

4.4.2 GPS Input Selection .......................................................................... 4-9

5. MAINTENANCE ......................................................................................... 5-1

5.1 Daily Inspection ................................................................................................. 5-1

5.2 Periodic Inspection ...........................................................................................5-1

5.3 Troubleshooting ............................................................................................... 5-2

5.4 Inspection of the Measurement Rod ............................................................... 5-5

5.5 Inspection of the Seawater Valve .................................................................... 5-6

5.5.1 Precautions in Replacing the Sensor ................................................ 5-7

5.5.2 Precautions in Installing the Sensor .................................................. 5-7

6. INSTALLATION ......................................................................................... 6-1

6.1 Precautions on Installation .............................................................................. 6-1

6.1.1 Seawater Valve and Measurement Rod ........................................... 6-1

6.1.2 Junction Box ...................................................................................... 6-1

6.1.3 Master Unit ......................................................................................... 6-1

6.1.4 Indicator ............................................................................................. 6-1

6.2 Response-speed Setting .................................................................................. 6-2

6.3 Parameter Settings ........................................................................................... 6-3

6.3.1 Master Indicator ................................................................................. 6-3

6.3.2 Analog Indicator ................................................................................ 6-3

6.3.3 Master Unit ......................................................................................... 6-5

6.4 Adjustments ......................................................................................................6-8

6.5 Milepost Measurement (Maintenance Mode) ............................................................. 6-12

6.5.1 Automatic Milepost measurement ...................................................6-13

6.5.2 Manual milepost Measurement ......................................................6-16

6.5.3 Display / Alteration / Deletion of Milepost Data(Maintenance Mode) 6-16

6.5.4 Display and Alteration of Linearizer Table (Maintenance Mode) ...............6-17

6.6 GPS Interface Setting .....................................................................................6-19

6.7 Switching of Voltage Output Range ..............................................................6-21

6.8 Serial Output Signal Format ..........................................................................6-22

6.9 Maintenance Functions ..................................................................................6-29

6.9.1 Intermediate Error Compensation Factor (Maintenance Mode) ..................................6-29

6.9.2 Sub-maintenance Mode ..................................................................6-29

6.9.3 Switch Status Display Mode (Sub-maintenance Mode)............................6-30

6.9.4 Voltage Check Mode (Sub-maintenance Mode) .............................6-30

6.9.5 Fixed voltage Output Mode (Sub-maintenance Mode) ..........................6-31

6.10 Error Code Display Mode (Sub-maintenance Mode) ................................................................................6-32

Appendix 1: EML 500 Circuit diagram ..............................................................A-1 Appendix 2: Master Unit Block Diagram ..........................................................A-2 Appendix 3: Master Indicator Block Diagram ..................................................A-6

1-2

< 1.INTRODUCTION >

(2) Master Unit The operation panel on the master unit is shown below, with its cover removed.

SW2 to SW7 : digital switches (for maintenance setting)

SW8 : dip switch

(for system and maintenance setting)

LED1 to LED8 : error indication LED

F1 : fuse for the main power

2A for 100 to 220V AC

SW1 : power supply switch

(for supplying power to the entire system)

F2 : fuse for the main power of the external unit

LED12 : Power LED

SW9 : dip switch (for switching the relay)

CN2, CN3: Switching the Error state contact (NC or NO)

SW11 : dip switch (for switching the current output)

E1 : memory backup battery

F6 : sensor fuse of 0.32A (for the Log sensor)

WARNING

Electrical shock

To avoid electrical shock, turn off the power before making wiring connections.

CAUTION

Do not use a megger for inspection purposes except for on-board power supply terminals.

Otherwise, the equipment may be damaged.

2-1

< 2.OVERVIEW >

2. OVERVIEW

2.1 General

The EML500 series of electromagnetic logs successfully meets the performance requirements prescribed by IMO resolution A824(19), and has been approved by the MED and type approval of the Japan.

The EML500 features:

(1) Versatile external interfaces

· Pulse output (photocoupler / contact)

· Digital output (IEC61162-1)

· Analog speed output (0V DC to 5V DC)

· Interface with the GPS

(2) High reliability The use of highly integrated circuits, such as microprocessors, provides excellent reliability due to a reduction in parts and the elimination of moving parts.

(3) Master indicator for displaying the speed and distance

(4) Variety of sensors available to meet various installation requirements.

A dual-axis sensor can measure not only the longitudinal speed, but also the transverse speed.

(5) Built-in self-diagnostic function

2.2 Principle

The principle of electromagnetic logs is based on Faraday’s law of electromagnetic induction.

An electromotive force is induced in a conductor whenever there is relative motion between the conductor and magnetic field.

The directions of the magnetic field, motion and induced emf are at right angles or perpendicular to each other.

If the magnetic field is fixed, the magnitude of the induced emf is proportional to the speed of the motion (see Figure ”Principle”).

Therefore, either the conductor or magnetic field must move to induce an electromotive force.

In the case of electromagnetic logs, the magnetic field moves along with the ship while the seawa-ter (the conductor) remains stationary.

There is a coil in the sensor at the top of the measurement rod, and this coil is energized to establish a magnetic field around the sensor. As the ship moves, an emf is induced which is then detected by a pair of electrodes at the tip of the sensor (see Figure “Flattened Sensor Structure”).

2-5

Digital speed output : 6 circuits

SD A

SD

SHLD

Contact signal : 4circuit(Speed Limit : 2 circuit, Error state Output : 2 circuit)

State of contact Setting speed limit (master indicator)

Dip SW9-2 (master unit)

(Note) For setting Hi and Lo, refer to 4.4.1

State of contact Setting of CN2,3

(Note) Fix dip switch 9-3 to OFF

(8) Input Signal: 1 circuit (for back up by GPS)

P

N

3-1

< 3.COMPONENTS >

3. COMPONENTS

3.1 System Confi guration

EML 500

EML 500EML 500

SPEED

17.5kn

T.MILES

12345.56NM

LR525-F

Flush-mount unit

LR523-D

Flush-mount unit

LR523-W

Desktop/wall-mount unit

LR523-F

Flush-mount unit

(with bezel)

LR525-W

Wall-mount unit

MHR130-SPD-F

Flush-mount unit

LT501-F

Flush-mount unit

LD001A-F

Flush-mount unit

LD001A-W

Wall-mount unit

LT501-W

Wall-mount unit

MHR130-SPD-W

Wall-mount unit

Master indicator

Speed indicator (dual axis) Speed indicator (Single axis)

Master unit Dimmer box(for LR524/525)

GPS

(Option)

Contact signal(2P MAX) Photocoupler (8P MAX) Analog speed output (2P MAX) Error state (2P MAX) Speed limit (2P MAX) Analog speed output (4P MAX) Speed and distance data output (6P MAX) 100 to 220 V AC power supply

200P/NM

200P/NM

1V DC to 5V DC Contact signal Contact signal 4mA to 20mA Digital signal(IEC61162-1) ø35 F For double-bottom hull ø70 F

LV071A/LS571

ø48 F

LV052/LS541(single axis) LS542 (dual axis)

LV033/LS591

ø35 F For single-bottom hull

LV033/LS531

100 V AC to 230 V AC

Used for flush-mount speed indicator or external dimmer (in case of EL lighting)

Digital signal(IEC61162-1)

MHR120

Universal Data Display

MHR112

Assist Monitor

MHR110A

Universal Data Display

LN052

Junction box

(Option)

Seawater valve / Sensor

MRD011-F

Flush-mount unit

MRD011-N

Dimmer box / unit(for MHR130)

Used for flush-mount speed indicator or external dimmer

MRD010

Dimmer box

LR524-F

Flush-mount unit

LR524-W

Wall-mount unit

DISPL

F 1

CLEAR CLEAR ENT

DISPL

MODE

F 1

F 2

PREV

LT

0 9

4-3

< 4.OPERATION >

4.3 Operational Functions

Perform the necessary operations using the operation panel on the master indicator .

4.3.1 Basic Operation Flowchart

4-5

< 4.OPERATION >

4.3.2 Fundamentals of Operation

Entry from the numeric keypad

New data can be entered from the numeric keypad while the value on the display is fl ickering.

The entry of a new value is set when the ENT key is pressed and the fl ickering stops. To change the value again, press the CLEAR key. The value on the display starts fl ickering, and prompts you to enter a new value.

Switching of the display on the mode level As shown in the basic operation fl owchart, the display in one mode is switched to another mode each time the MODE key is pressed.

Switching of the display on the maintenance level As shown in the basic operation fl owchart, the maintenance display is switched to the next one each time the F 2 (“NXT”) key is pressed.

Switching of the display on the sub-maintenance level As shown in the basic operation fl owchart, the sub-maintenance display is switched to the next one each time the F 2 key is pressed.

Pressing the DISPL key allows the display to return to -1 or -2 from any level

Level movement MODE key If the MODE key is pressed on the maintenance level and the sub-maintenance level, the display returns to the -1.

Level movement PREV key If the PREV key is pressed within a mode, the display returns to the initial state in that mode.

If the PREV key is pressed on the maintenance level and the sub-maintenance level, the display returns to the -5-1.

< 4.OPERATION >

If the all displays fi lcker, it shows that some errors occur in P6-32 Check it the troubleshooting to show in P5-2, the fl ickers stop if the error is sollved

If the GPS is connected, either a GPS input or electromagetic-log input can be selected.

Press the MODE key, and the follwing display appears :

(turn on No3 of SW8 of the master unit if the GPS is connected.)

F 1 F 2DISPL PREV MODE

LOG

LIMIT Speed

Low-Speed limit (on / off)

Press the MODE key again. The display changes as follows :

F 1 F 2DISPL PREV MODE

LOG

LOG GPS

Input signal : LOG

LOG / GPS

Press the F 1 key to select the log input or press the F 2 key to select the GPS input . Then press the DISPL key to return to the speed and distance display.

It doesn't change to the GPS mode if GPS isn't connected or normal signal more than 10 seconds isn't made of GPS.

< 4.OPERATION >

Data can be output to indicators and external devices on a test basis if the speed data are set from the operation panel on the master indicator.

Operate the MODE key, and indicate fi gure -3 to do the test function.

In a single-axis sensor system, however, 'TTS' (transverse speed test output ) is not available. To select 'LTS' (longitudinal speed test output), press the F 1 key while the display is . The Display then chages to that marked . The value on this display fl ickers.

The operation fl ow on the left gives an example of setteing the ouput at + 15.00 kn.

To do this, fi rst set the sign by pressing the F 1 key (+) or F 2 key (-). Next, enter the output value using the numeric keypad. Confi rm the value that has just been entered, and then press the

ENT key. This stops the fl ickering (see the display marked e), and the set speed is output.

To set the transverse speed (TTS), press the F 2 key while the display is at , and then use the same procedure as that for the logitudinal speed setting.

Push the MODE key, and change the mode to cancel the function.

The test data which on the serial output signal format is only longitudinal water speed.

To reset the total distance, press the CLEAR , CLEAR , ENT to the order during the indication "Speed, Total distance traveled".

F 1 F 2DISPL PREV MODE

F 1 F 2DISPL PREV MODE

MAINT

MAINT

F 1 F 2DISPL PREV MODE

MAINT

F 1 F 2DISPL PREV MODE

MAINT

F 1 F 2DISPL PREV MODE

MAINT

ENT

a.

b.

c.

d.

e.

-3

Change in sign (from ‘+’ to ‘-’ ) change in sign (from ‘–’ to ‘+’ ) Enter 1,5,0 and 0 in this order from the numeric keypad.

Press the ‘ENT’ key

4-9

< 4.OPERATION >

4.4 Setting function

4.4.1 Speed Limit Setting

Speed limit setting (on or off) and the setting of a speed limit can be done as follows:

To select the speed limit setting mode, press the

MODE key while the display is at -1 or -2.(see page 4-3) This allows the speed limit setting display ( -1) to appear. This display alternates between "Hi" and "Lo" each time the F 1 key is pressed if "Hi" is set at the beginning of the top line, the speed limit is used as the high-limit value.

If "Lo" is set, the speed limit is used as the low -limit value .

The indication "on" on the bottom line of the display changed to "off" if the F 2 key is pressed. This on/off setting determines whether the speed limit is employed or not. There "on" and "off" settings are displayed alternately each time the F 2 key is pressed . At the same time, another on/off indica-tion appears accordingly in the mode LED section.

The speed limit can be changed using the numer-ic keypad while the set value is fl ickering on the display. the fl ickering is indicated by the white dig-its on the black back ground in the fi gure on the left.

(The fi gure on the left shows the case in which the high-limit speed is set to '30.00 kn')

4.4.2 GPS Input Selection

If the GPS is connected, the EML500 can receive speed signals from it. GPS input is to be selected in such a case as sensor failure.

To select the Log-Sensor input, press the F 1 key. The letter "L" appears on the far right of the top line of the display. In addition, "LOG" appears in the title LED section.

To select GPS input, press the F 2 key. The letter "G" appears on the far left of the top line of the display. In addition, "GPS" appears in the title LED section.

It can be used turning on SW8-No3 of the master unit LT501, P1-2, P6-5 reference.

F 1 F 2DISPL PREV MODE

F 1

LIMIT ON

LIMIT ON

F 1 F 2DISPL PREV MODE

F 2

ENT

-1

Enter 3,0,0 and 0 in this order from the numeric keypad.

Completion of entry

F 1 F 2DISPL PREV MODE

LOG / GPS

F 1 F 2DISPL PREV MODE

LOG / GPS

-2

5-3

< 5.MAINTENANCE >

(2) Speed Indicator (LR524, MHR130-SPD, LR525)

Is the AC power (on-board power) being supplied?Is the backlight turned on?

Check the on-board power supply.

Is the fuse in the master unit working normal?

Replace the EL plate.

(for LR524/LR525[EL type])

Is power being supplied from the master unit?

(Measure the voltage between TB2 terminals 6 and 7 using a circuit tester 21V DC to 31V DC)

Defect in the P.C.board in the speed indicator

Is there any error -indicationg LED turned on in the master unit?

Replace the fuse.

Failure in the 24 V DC power sup-ply in the master unit

Error in the master unit

Is 24 V DC power being sup-plied?

YES

YES

YES

NO YES

NO

YES

SERVICE CALL

NO

NO

NO

NO

YES

(3) Errors (CAUTION) in the Master Indicator

Dose an LED remain on even when the master unit power is turned off

YES

Service call

If an error occurs in the master indicator, the corresponding error code automatically appears on the display as shown on the following page.

If two or more errors occur simultaneously, their codes are displayed in a combined manner.

The display returns to the previous state (the state immediately before the error indication) as soon as the error or errors are removed.

NOTE

All the alert in EML500 are “CAUTION”. I express “CAUTION” with “error” with this product.

Replace the Backlight Assy.

(for MHR130-SPD/LR524/ LR525[LED type])

5-6

Continuity check

NOTE

Tester Polarity Terminals G, E : NEGATIVE G, E : POSITIVE

For dual-axis sensor.

5.5 Inspection of the Seawater Valve

YES

NO

YES

5-7

< 5.MAINTENANCE >

5.5.1 Precautions in Replacing the Sensor

(1) Before making a replacement, check the handle op-eration.

(2) Place a spare sensor on the seawater valve ( in Figure “Sensor Installation”). Pull up the currently used sensor to almost the same height as the spare sensor, and turn the handle to close the seawater valve. Then, Remove the sensor and replace it.

Figure Sensor Installation

CAUTION

Removal of Measurement Rod

To remove the measurement rod, pull it all the way up and close the seawater valve. Then remove the rod.

If the rod is removed before closing the valve, seawater will spew out through the valve.

To remove the chain, fully close the valve (for the HS, HV, and FA models). Then remove the chain.

5.5.2 Precautions in Installing the Sensor

NOTE

(1) Install the sensor with its heading mark aligned with the heading of the ship. The direction of the bow is indicated by the dot mark in the sensor.

(2) To prevent the sensor from being stuck, apply a lubricant before inserting it into the sewater valve. In this case, do not use an excessive amount of lubricant. If there is lubricant on the electrodes at the top of the sensor, an indication error may occur.

CAUTION

Do not drop the measurement rod or allow any mechanical shock at the tip of the rod. Other-wise, the rod may be damaged.

ø35 SENSOR

SUPPLIED BY MAKER

SEAWATER VALVE

BOTTOM PLATE

MOUNTING PALTE

ZINC PLATE

6-1

< 6.INSTALLATION >

6. INSTALLATION

CAUTION

Do not use a megger for inspection purposes except for on-board power supply terminals.

Otherwise, the equipment may be damaged.

6.1 Precautions on Installation

6.1.1 Seawater Valve and Measurement Rod

(1) Install the sensor near the bow-to-stern line and pivoting point.

(2) The bottom of the ship's hull must be fl at and smooth.

(3) There must be no water inlet or outlet disturbing the fl ow of water near the sensor.

(4) There must be not protrusions in the area around the sensor on the bottom of the ship's hull :

5m toward the bow; 2.5 m to the right and left; 2.5 m toward the stern.

(5) (a) Confi rm the sensitive unit should be projected by 50 mm (30 mm for HS1) from ship's bot-tom after installation of sea valve while the vessel. (at Ø35 sensor)

(b) Following maintenance space should be kept to pull out the rod meter. The length of rod-meter + 450 mm from the top of tank. (at a double bottom)

(c) When pull out the rod meter, do not remove the chain setting until the sea valve is closed perfectly. Confi rm maintenance space to pull out the rod meter. (at Ø35, Ø48, Ø70 sensor)

(6) Align the bow mark on the measurement rod with the bow.

(7) Do not apply a lubricant or oil to the electrodes. This may cause an error.

6.1.2 Junction Box

(1) Allow for a length of between the measurement rod and junction box long enough for the measurement rod to be pulled up easily during maintenance.

(2) Use the supplied cable between the measurement rod and junction box.

6.1.3 Master Unit

(1) Install the master unit where operation and maintenance can be performed easily (the main power switch is on the master unit).

(2) Connect the ground terminal of the case to the ship.

(3) Do not use a megger except when checking the on-board power supply terminals.

6.1.4 Indicator

(1) General Install the indicator where it can be seen clearly.

(2) LR522 Connect to TB1-11, 12, set output.

Refer to 6.3.3 for the setting of output.

6-2

< 6.INSTALLATION >

6.2 Response-speed Setting

Determine the response speed according to the performance of the ship. The relationship between the set value and actual output response is as follows :

100 20 30 40 50

(sec)

(1) (2)

(3)

(4)

Time

O ut pu t r es po ns e

(1) : Set value = 1

(2) : Set value = 2

(3) : Set value = 4

(4) : Set value = 10

Default : 5 Recommended values For ships at 20 kn or 25 kn : 5 For ships at 35 kn or 40 kn : 3 For ships at 50 kn or 65 kn : 2

Press the F 1 key at -5-4 to select the re-sponse speed setting .The display then changes to that marked a. Here, the previously-set value is fl ickering on the display.

The operation fl ow on the left gives an example of setting '20'. To do this, fi rst enter 2 and 0 using the numeric keypad. Confi rm that the values has just been entered, and then press the ENT key. This stops the flickering (see the display marked c), and completes the setting of the new value (at time constant 20 seconds).

Setting range : 1 to 20

F 1 F 2DISPL PREV MODE

F 1 F 2DISPL PREV MODE

MAINT

MAINT

F 1 F 2DISPL PREV MODE

MAINT

F 1 F 2DISPL PREV MODE

MAINT

a.

-5-4

-5-5-5-41 b.

c.

Previously-set value

Press the ‘ENT’ key

Enter 2 and 0 in this order from the

6-3

< 6.INSTALLATION >

6.3 Parameter Settings

6.3.1 Master Indicator

Various parameters can be set with a combination of the on and off positions of the eight bits (No.1 to No.8) of the dip switch.

OFF ON

Mode Setting switch

(The fi gure on the left is the factory setting.)

SW No. ON OFF Remarks 1 Reserved 2 Fixed Not used 3 Fixed Not used 4 9600bps 4800bps(factory setting) Baud rate 5 Fixed Not used

6 Fixed Not used 7 Fixed Not used

8 No connection Connection(factory setting) LR221

6.3.2 Analog Indicator

(1) LR524/LR525(No.1/No.2/No.3),MHR130-SPD DSW1(No.5/No.6/No.7) Speed range setting Variou speed ranges can be set based on the combination of the on and off positions of these switch bits as shown below.

LR524/LR525(No.1/No.2/No.3)

- 4kn to 20 kn - 5 kn to 25 kn - 7 kn to 35 kn - 8 kn to 40 kn -10 kn to 50 kn -13 kn to 65 kn

OFF ON

OFF ON

OFF ON

OFF ON

OFF ON

OFF ON

SW No. -4 to 20kn -5 to 25kn -7 to 35kn -8 to 40kn -10 to 50kn -13 to 65kn

1 ON OFF ON OFF ON OFF

2 ON ON OFF OFF ON ON

3 ON ON ON ON OFF OFF

6-4

< 6.INSTALLATION >

LR524/LR525(No.4/No.5/No.6/No.7/No.8)

SW No. ON OFF Remarks 4 9600bps 4800bps(factory setting) Baud rate 5 Fixed Not used

6 single-axis dual-axis Slelction of single-axis or dual -axis

7 Resultant speed and direc-tion of ship movement

Longitudinal and transverse speeds Selection of dual indi-cation data

8 No connection Connection(factory setting) LR221

MHR130-SPD DSW1(No.1/No.2/No.3/No.4)

- 4kn to 20 kn - 5 kn to 25 kn - 7 kn to 35 kn - 10 kn to 50 kn

OFF ON

OFF ON

OFF ON

OFF ON

SW No. ON OFF Remarks 1 Connection(factory setting) No connection LR221 2 9600bps 4800bps(factory setting) Baud rate 3 Fixed Not used 4 Fixed Not used

MHR130-SPD DSW1(No.5/No.6/No.7/No.8)

SW No. -4 to 20kn -5 to 25kn -7 to 35kn -10 to 50kn

5 OFF ON OFF OFF

6 OFF OFF ON OFF

7 OFF OFF OFF ON

8(Fixed) OFF OFF OFF OFF

(2) MHR130-SPD DSW2

OFF ON

SW No. ON OFF Remarks

1 Fixed Function setting 2 Fixed Not used 3 Fixed Not used 4 Fixed Not used 5 Fixed Not used

6 Fixed Not used 7 Effective Invaridity Checkers function

8 Effective Invaridity Checkers function

6-5

< 6.INSTALLATION >

6.3.3 Master Unit

SW8 Function setting Set the No.6 switch to 'ON' to enter the maintenance or sub-maintenance mode. In normal operation, this switch must be off to protect data in the memory:

OFF ON SW No. ON OFF Remarks 1 Fixed Not used 2 Dual-axis Single-axis Type of sensor 3 Connection No connection GPS sensor 4 Ground speed Water speed Water speed fi eld data 5 Version 2.3 Version 2.0 NMEA0183 6 Maintenance Normal Operation Mode 7 Reset Working Memorized Data

8 Connection No connection LR221

NOTE

When set the switch No.7 to ON and turn the power switch ON, all adjustment and distance data is initialized. Restart the system after changing of SW5 and SW8 setting.

SW9 Relay potint of contact setting

OFF ON

SW No. ON OFF Remarks

1 Fixed Distance pulse contact(relay) 2 Fixed Speed limit contact 3 Fixed Error state contact 4 Effective Invalidity Speed input error detect 5 Fixed Not used 6 Fixed Not used 7 Fixed Not used

8 Fixed Not used

6-6

< 6.INSTALLATION >

SW 3 Range setting

B

SW No. Range 0 20 kn 1 25 kn 2 35 kn 3 40 kn 4 50 kn 5 65 kn 6 20 kn

F

SW 2 baud rate setting (between the master indicator and speed indicator)

0 1

78A C

E SW No. Baud rate

0 9600 bps 1 4800 bps (Factory setting) 2 Not used F

SW4 Analog output setting

B

Procedure of selection vide 6.7

SW No. Analog output 0 (a) of 2-3 (7)

1 (b) of 2-3 (7)

SW5 Software output setting

B

SW No. Analog output 0 standard(IEC61162-1) 1 Old standard(NMEA2.0/NMEA2.3)

6-7

< 6.INSTALLATION >

SW11 Output setting of TB1-11,12

OFF ON

When connection the indicator LR522, set SW11

SW No.

LR522

NOT CONNECT CONNECT

1 OFF ON

2 ON OFF

3 ON OFF

4 OFF OFF

5 OFF ON

6 OFF ON

7 OFF OFF

8 ON OFF

6-8

< 6.INSTALLATION >

6.4 Adjustments

(1) ADC error Adjustment (Maintenance Mode)

It is a function to read and to correct the error margin caused with the circuit of ADC.

NOTE

It is not necessary to usually adjust it because it had adjusted it when having shipped it.

F 1 F 2DISPL PREV MODE

F 1 F 2DISPL PREV MODE

MAINT

MAINT

F 1 F 2DISPL PREV MODE

MAINT

F 1 F 2DISPL PREV MODE

MAINT

a.

-5-9

-5-10-5-91 b.

c.

Previously-set value

Start of measurent

Desiplay of measured value

This is the initial display ( -5-9) of the main-tenance mode. Press the F 1 key at

-5-9 to select ADC error adjustment. The display then changes to that marked a.

The values high-lighted in reverse video here are the ADC error adjustment data that were the latest set(Top line: Gain/ Bottom line:Offset). To make a new ADC error ad-justment, press the F 1 key (GO). The display changes to that marked b, and then further changes to that marked c after ap-proximately 5 seconds. On this display, the new ADC error adjustment data are dis-played.

Press the ENT key to enter the data.

Press the PREV key when the data are not entered.

At -5-9, press the F 2 key (NXT) to Sub-maintenance mode(M-SUB) ( -5-10).

6-9

< 6.INSTALLATION >

(2) Zero Adjustment (Maintenance Mode) A zero adjustment corrects a zero-point drift which may occur in a circuit other than the one in the sensor. To make a zero adjustment, there mast be no water fl owing in the direction to be detected.

Therefore, make the adjustment :

with the sensor placed in a bucket of water, or with the ship at anchor and no water fl owing around the sensor.

Furthermore, Lightly polish the electrodes in the sensor with the water-resistant sandpaper (at last #600) dampened in water.

Place the sensor in a bucket of water. Hold the sensor so that its electrodes are in the middle of the bucket: do not let the electrodes come into contact with the bottom of the bucket.

The adjustment procedure is shown in the fi gure below.

This is the initial display ( -5-1) of the mainte-nance mode. Press the F 1 key at -5-1 to select zero-adjustment. The display then changes to that marked a.

The values high-lighted in reverse video here are the zero-adjustment data that were the latest set.

To make a new zero adjustment, press the F 1 key (GO). The display changes to that marked b, and then further changes to that marked c after approximately 20 seconds. On this display, the new zero-adjustment data are displayed.

Press the ENT key to enter the data.

Press the PREV key when the data are not en-tered.

At -5-1, press the F 2 key (NXT) to advance to sensitivity adjustment ( -5-2).

(Refer to page 6-10 for details on sensitivity adjust-ment.)

NOTE: Adjustment range are -2.00 to 2.00.

(Default: 0.00)

The sensor must be kept away from the bottom of the bucket ø 500

At least 100 mm

F 1 F 2DISPL PREV MODE

F 1 F 2DISPL PREV MODE

MAINT

MAINT

F 1 F 2DISPL PREV MODE

MAINT

F 1 F 2DISPL PREV MODE

MAINT

a.

-5-1

-5-2-5-11 b.

c.

Previously-set value

Display of measured value

Start of measurement

6-10

< 6.INSTALLATION >

(3) Sensitivity Adjustment (Maintenance Mode) The differences in sensitivity among sensors can be adjusted with this function. If the accuracy of the reading changes when the sensor is replaced, make a sensitivity adjustment.

The sensitivity adjustment value can be obtained from the following expression :

Set value =

SPD1

SPD2

(SS1 + 100) - 100

SPD1 : Intended speed SPD2 : Current speed SS1: Current set value

The adjustment procedure is shown in the fi gure below .

Press the F 1 key at -5-2 to select sensitiv-ity adjustment. The display then changes to that marked a . The value highlighted in reverse video here is the adjustment data that were the latest set.

To change it to '+4.00%' for example, fi rst press the

F 1 key to change the sign to '+' (see the dis-play marked b). Next, enter 0 , 4 , 0 , and 0 using the numeric keypad.

Confi rm the entered value, and then press the

ENT key. This stops the fl ickering and completes the setting of '+4.00%' (see the display marked d).

To set a minus value, press the F 2 key (-) while the display is at a, and enter the value using the numeric keypad.

NOTE: Adjustment range are -40.00 to 40.00 .

(Default: 0.00)

F 1 F 2DISPL PREV MODE

F 1 F 2DISPL PREV MODE

MAINT

MAINT

F 1 F 2DISPL PREV MODE

MAINT

F 1 F 2DISPL PREV MODE

MAINT

a.

-5-2

-5-3-5-21 b.

d.

c.

F 1 F 2DISPL PREV MODE

MAINT

ENT

Chage the sign to ‘+’

Press the ‘ENT’ key.

Enter 0,4,0,and 0 in this order from the

6-11

< 6.INSTALLATION >

(4) Span Adjustment (Maintenance Mode) If an error in the speed is proportional to the actual speed, it can be adjusted by multiplying the speed by a certain coeffi cient ( the span-adjustment value). This adjustment is made to minimize a discrepancy between the displayed speed and actual speed before a milepost measurement is made.

NOTE

Reset it to an initial value(i.e. 1.000) after milepost adjustment because the setting of this adjustment is not applied for the milepost data.

A span adjustment is also necessary if the speed error has become larger due to contaminants adhering to the bottom of the ship after many years of service.

The adjustment procedure is shown in the fi gure below.

At -5-3, press the F 1 key to select span adjustment. The display then changes to that marked a. In a single-axis sensor system , how-ever, 'TSP' (transverse span) does not appear on the display.

To select 'LSP' (Longitudinal span), press the F 1 key while the display is at a.

The display then changes to that marked b.

The value highlighted in reverse video here is the adjustment data that were the latest set.

To change it to '1.15 times' for example, enter 1 , 1 , 5 , and 0 using the numeric keypad (see the display marked c).

Confi rm the entered value, then press the ENT key. This stops the Flickering and completes the setting (see the display marked d).

NOTE: Adjustment range are 0.600 to 1.800.

(Default : 1.000)

To set 'TSP', press the F 2 key while the dis-play is at a, and then use the same procedure as that for 'LSP'.

F 1 F 2DISPL PREV MODE

F 1 F 2DISPL PREV MODE

MAINT

MAINT

F 1 F 2DISPL PREV MODE

MAINT

F 1 F 2DISPL PREV MODE

MAINT

a.

-5-3

-5-4-5-31 b.

d.

c.

F 1 F 2DISPL PREV MODE

MAINT

ENT

Press the ‘ENT’ key.

Enter 1,1,5,and 0 in this order from the

6-12

< 6.INSTALLATION >

6.5 Milepost Measurement (Maintenance Mode)

In actual navigation, the fl ow of water detected by the sensor in the measurement rod depends on the installation position of the sensor, type of ship, length of the protruding sensor, draft, and the ship's speed. Therefore, to obtain more accurate data, it is necessary to compare the indicated speed with the actual one, and correct any discrepancy between them.

The actual speed can be measured when the ship is sailing on calm water over a certain distance.

In this case, however, the tide and wind can affect the speed . To eliminate these factors, the ship makes a round trip between mileposts. For accurate measurement, preliminary sailing is also nec-essary to minimize any variations in the speed, and the ship must take the correct course between mileposts.

In milepost calibration, the ship makes a round trip (2 one-way trips ) or a round trip plus another on-way trip (3 one-way trips) to obtain a set of data which serves as the unit of measurement. The mean values of the actual speed and log speed are calculated based on these milepost measure-ment data.

(1) One round trip Measurement for a round trip is recommended if the infl uence from the tide and wind is constant with respect to the time.

Mean log speed /mean actual speed : VL

VL=

VL1+VL2

IN VL1 OUT

OUT VL2 IN

The trip out

The trip back

Milepost Milepost

Round-trip measurement

(2) One and a half round trips Measurement for three one-way trips is recommended if the infl uence from the tide and wind is changing along with the time.

Mean Log speed / mean actual speed : VL

VL=

VL1 + 2 VL2 + VL3

IN VL1 OUT

OUT VL2 IN

IN VL3 OUT

The trip out

The trip back

The second trip out

Milepost Milepost

One-and-a-harf-round-trip measurement

6-13

< 6.INSTALLATION >

6.5.1 Automatic Milepost measurement

In this measurement, the actual speed in automatically calculated based on the travel time and the distance between mileposts which has been set in advance. To obtain the log speed, the speed detected by the sensor is automatically averaged. Milepost measurement is usually performed in the automatic mode. The operation fl ow is shown in the fi gures on the following pages.

At -5-5, press the F 1 key to select the milepost mode. The display then change to that marked a.

F 1 F 2DISPL PREV MODE

F 1 F 2DISPL PREV MODE

MAINT

MAINT

F 1 F 2DISPL PREV MODE

MAINT

a.

-5-5

-5-6-5-51 d.

e.

F 1 F 2DISPL PREV MODE

MAINT

ENT

F 1 F 2DISPL PREV MODE

MAINT

b.

c.

F 1 F 2DISPL PREV MODE

MAINT

To f.

Enter 1,0,0,and 0 in this order from the numeric keypad.

Manual milepost mode Press the F 2 key (HND) while the display is at a to select the manual mode. The display then changes to that marked b. The values on this display are the log speed (without intermediate-error and span adjustments) and the distance.

If the F 1 key is pressed while the display is at b, the distance is reset and the display changes to that marked c (this distance is different from the total distance and trip distance; therefore, the resetting of this distance has no effect on them).

Automatic milepost mode Press the F 1 key (AUTO) while the display is at a to select the automatic mode. The display then changes to that marked d. The value highlighted in reverse video here is the distance that was the latest set . To change it to '1000 m' for example, enter 1 , 0 , 0 , and 0 using the numeric keypad. Confi rm the entered value, and then press the ENT key. This allows the display to advance to f on the following page.

6-14

< 6.INSTALLATION >

Note that the operations at a to i are for obtaining data on the fi rst trip out (1ST).

At f, press the F 1 key (START) when the fi rst trip out starts. The display then changes to that marked g. Next, press the F 1 key (STOP) when the trip out is fi nished. This allows the display to change to that marked h. Here, the log speed (L) and real speed (R) that have just been obtained are displayed.

If the ENT key is pressed at h, the display marked i appears. This display asks whether the obtained data on the trip out are to be cancelled or not. To cancel them and restart the trip out, press the

F 1 key (YES) . The display then returns to f.

To validate the obtained data and proceed to the trip back (2ND), press the F 2 key (NO) while the display is at i. This allows the display to ad-vance to j (the operations for the trip back start from here).

The operations and display at j to m are the same as those for the trip out (f to i).

If the F 2 key is pressed while the display is at m (after the completion of the trip back), the display changes to that marked n as shown on the follow-ing page.

F 1 F 2DISPL PREV MODE

F 1 F 2DISPL PREV MODE

MAINT

MAINT

F 1 F 2DISPL PREV MODE

MAINT

g.

f.

h.

i.

F 1 F 2DISPL PREV MODE

MAINT

ENT

F 1 F 2DISPL PREV MODE

F 1 F 2DISPL PREV MODE

MAINT

MAINT

F 1 F 2DISPL PREV MODE

MAINT

k.

j.

l.

m.

F 1 F 2DISPL PREV MODE

MAINT

ENT

To aFrom e,s,or t

To n.

6-15

< 6.INSTALLATION >

The screen advances to Step n. Here, whether a third trip out (3RD) is to be made (GO) or not (NO) is selected. If the F 1 key is pressed to select GO, the screen advances to Step o. (operations for the third trip out are activated from here ). The operations and screens in Steps o. to r. are the same as those in Steps f. to i. (the fi rst trip out).

If the F 2 key is pressed to select NO in Step

n. or the same key is pressed in Step r., the screen advances to Step s. Here, whether the set of data that has been saved up to the second or third trip out is deleted (YES) or not (NO) is selected.

Press the F 1 key to delete the existing data and acquire new data. The Screen reverts to Step

f. to acquire new set of data . If the F 2 key is pressed, the new set of data is saved, and the screen advances to Step t.

To acquire another set of data, press the F 1 key (CONT). To fi nish the milepost measurement, press the F 2 key (END). The screen then returns to Step a.

NOTE

If the DISPL or PREV key is pressed to go back to a previous step rather than selecting END in Step t., all the milepost data that has been saved will be lost.

F 1 F 2DISPL PREV MODE

F 1 F 2DISPL PREV MODE

MAINT

MAINT

F 1 F 2DISPL PREV MODE

MAINT

p.

o.

q.

r.

F 1 F 2DISPL PREV MODE

MAINT

ENT

F 1 F 2DISPL PREV MODE

F 1 F 2DISPL PREV MODE

MAINT

MAINT

F 1 F 2DISPL PREV MODE

MAINT

t.

s.

n.

F 1 F 2DISPL PREV MODE

MAINT

To a.From m.

To f.

To f.

6-16

< 6.INSTALLATION >

6.5.2 Manual milepost Measurement

In the manual milepost mode, no data can be set or entered; only the log speed is displayed without intermediate error compensation. This mode is used to backup automatic milepost measurement.

If the D-GPS or another speed indicator is available during milepost measurement, the speed ob-tained by the GPS or the indicator can be used as the real speed, instead of the real speed calcu-lated based on the distance and time.

Record the log speed displayed in this mode, and also record a reading of the GPS (or another speed indicator) as the real speed at the same time. Repeat this operation to obtain enough data.

After milepost measurement has been completed, enter these data to improve the milepost meas-urement ( for data entry, refer to Subsection 6.5.3, "Display / Alteration / Deletion of Milepost Data").

Refer to Subsection 6.5.1 for details on the operation.

6.5.3 Display / Alteration / Deletion of Milepost Data

(Maintenance Mode)

Milepost data can be displayed, altered, added, or deleted as follows:

At -5-6, press the F 1 key to select the data handling mode. The display then changes to that marked a. While the display is at a to g. pressing the F 1 key (NXT) or F 2 key (BFR) changes the displayed items in the order shown in the following fi gure. (The number at the begin-ning of the top line of the display is the data group number. An "L" on the top line means log speed, and "r" means the real speed.)

F 1 F 2DISPL PREV MODE

F 1 F 2DISPL PREV MODE

MAINT

MAINT

F 1 F 2DISPL PREV MODE

MAINT

a.

-5-6

-5-7-5-61 d.

g.

F 1 F 2DISPL PREV MODE

MAINT

b.

e.

F 1 F 2DISPL PREV MODE

MAINT

F 1 F 2DISPL PREV MODE

MAINT

c.

f.

F 1 F 2DISPL PREV MODE

MAINT

NO.01 :

log speed

NO.01 :

real speed

NO.02 :

log speed

NO.10 :

real speed

Enter 1,2,4, and 8 in this order from the numeric keypad.

Press the ‘ENT’ key.

Press the ‘ENT’ key.

Enter 1,2,5, and 3 in this order from the numeric keypad.

Alteration of data

6-17

< 6.INSTALLATION >

6.5.4 Display and Alteration of Linearizer Table (Maintenance Mode) After milepost measurement has been completed, all sets of obtained data are used to calculate the linearizer. In an actual situation, speed errors are corrected according to the linearizer which is represented as line graph (in 5-kn. increments on the measured log speed axis ) as shown below.

10 20 30 40 50 60 knots knots

Measured log speed

C al ib ra te d lo g sp ee d

The calibration curve is listed as a linearizer table as shown below.

Measured log speed Calibrated log speed 5 knot XX.XX knot

10 XX.XX

15 XX.XX

20 XX.XX

25 XX.XX

30 XX.XX

35 XX.XX

40 XX.XX

45 XX.XX

50 XX.XX

55 XX.XX

60 XX.XX

65 XX.XX

The linearizer table can be displayed and modifi ed as follows:

6-18

< 6.INSTALLATION >

F 1 F 2DISPL PREV MODE

F 1 F 2DISPL PREV MODE

MAINT

MAINT

F 1 F 2DISPL PREV MODE

MAINT

a.

-5-7

-5-8-5-71 d.

F 1 F 2DISPL PREV MODE

MAINT

b.

F 1 F 2DISPL PREV MODE

MAINT

c.

5 kn data

10kn data

Press the ‘ENT’ key.

Enter 0,5,3, and 6 in this order from the numeric keypad.

At -5-7, press the F 1 key to select the linearizer handling mode. The display then changes to that marked a.

While the display is at a to d, pressing the F 1 key (NXT) or F 2 key (BFR) changes the displayed items in the order shown in the fi gure below. (The number at the beginning of the top line of the display means the log speed level in the linearizer table.)

F 1 F 2

NXT BFR

5 kn Data on the table

10 kn Data on the table

15 kn Data on the table

60 kn Data on the table

65 kn Data on the table key key

(i) Modifi cation of data Press either the F 1 key (NXT) or F 2 key (BFR) until the data to be modifi ed appear on the display. Enter a new value using the numeric keypad. Confi rm the entered value, and then press the ENT key. Modifi cation of the data has now been completed.

(ii) Confi rmation of data To confi rm (refer to) data, press either the F 1 key (NXT) or F 2 key (BFR) until the required data appear on the display.

6-19

< 6.INSTALLATION >

6.6 GPS Interface Setting

If the GPS is connected to back up the EML500, the communication format of the EML500 must agree with that of the GPS. Set the following items in accordance with the GPS to enable the inter-face between them:

Header: up to 6 characters Speed data position: number of commas (i.e., the speed data are placed after a specifi ed number of commas) Checksum data : used / not used Terminator : CR,LF/C0h Baud rate : 9600/4800/2400 Stop bits : 1 / 1.5 / 2 Parity : Odd / Even / None Character length : 7 / 8

The setting procedure is shown in the fi gures on the following pages.

At -5-A5, press the F 1 key to select the GPS interface setting. The display then changes to that marked a.

Pressing the PREV key at a allows the display to return to -5-A5. If the F 1 key is pressed while the display is at a, the format setting mode is selected. If the F 2 key is pressed instead, the protocol setting mode is selected and the display advances to n (See page 6-20).

The asterisks "******" in the fi gure indicate the cur-rent header data. Each time the F 1 key (ALPH) is pressed, A to Z , $, A. (C0h), Z. (DAh), and a blank space appear one after the other in the space highlighted in reverse video (see the display marked c).

If the F 2 key (NXT) is pressed while the display is at b, the position of the inverse video highlight moves right one space. (“-“ character is appeared next a blank space for setting of second and third characters on the display marked “d“.)

Enter a header, confi rm it, and then press the ENT key. The display changes to that marked f.

While the display is at f, set the number of commas (,) that are placed before the speed data. The set-ting range is from 1 to 99 .

Enter a value using the numeric keypad, and then press the ENT key.

The “V SECT“ is automatically selected based on IEC61162-1 whten 4th, 5th and 6th characters are set to “VTG“,”VBW” or ”VHW” as the input data ID.

(i.e. VTG=05,VBW=01,VHW=05)

NOTE: Talker ID is not monitored for checking of the sentence when second and third characters are set to “-“.

F 1 F 2DISPL PREV MODE

F 1 F 2DISPL PREV MODE

MAINT

MAINT

F 1 F 2DISPL PREV MODE

MAINT

a.

-5-A5

-5-A51 b.

F 1 F 2DISPL PREV MODE

MAINT

e.

c. d.

F 1 F 2DISPL PREV MODE

MAINT

f.

F 1 F 2DISPL PREV MODE

MAINT

g.

ENT

ENT

Header setting

-5-A1(Page 6-30)

To n. (page 6-20)

To h. From h or k

Entry form the numeric keypad

6-20

< 6.INSTALLATION >

The display marked h asks whether cheksum is used or not. Press the F 1 key (USE) to select the use of checksum. The display them changes to that marked i.

If the F 2 key (NON) is pressed, checksum is not used and the display changes to that marked j.

Pressing the ENT key while the display is at h, i, or j allows the display to advance to k.

To select CR,LF as a terminator, press the F 1 key (LF) while the display is at k.

The display then changes to that marked l. To se-lect code C0h as a terminator, press the F 2 key (C0h) instead. The display then changes to that marked m.

Pressing the PREV key while the display is at b to m allows the display to return to a.

At n, set the baud rate.

Note 1: the values '96','48',and '24' appear one after the other in this order (96,48,24,96,48,....)

each time the F 1 key (NXT) is pressed.

96:9600; 48:4800; 24:2400 Pressing the ENT key allows the display to ad-vance to o.

At o, set the number of stop bits.

Note: 2 The values '1', '15', and '2' appear one after the other in this order (1,15,2,1,15,.....) each time the F 1 key (NXT) is pressed.

15: 1.5 bits Pressing the ENT key allows the display to ad-vance to p.

At p, set the parity bits.

Note 3: The values 'ODD','EVN,' and 'NON' appear one after the other in this order (ODD, EVN, NON, ODD, EVN.....) each time the F 1 key (NXT) is pressed.

ODD : odd; EVN : even; NON : none Pressing the ENT key allows the display to ad-vance to q.

At q, set the character length.

Note 4: The values '7' and '8' appear alternately (7,8,7,8,.....) each time the F 1 key (NXT) is pressed.

Pressing the ENT key allows the display to return to a.

If the PREV key is pressed while the display is at n to q, the display returns to a.

F 1 F 2DISPL PREV MODE

MAINT

i.

k.

h.

j.

F 1 F 2DISPL PREV MODE

MAINT

l. m.

ENT

ENT

From g. To a.

F 1 F 2DISPL PREV MODE

MAINT

o.

p.

q.

n.

F 1 F 2DISPL PREV MODE

MAINT

ENT

ENT

F 1 F 2DISPL PREV MODE

MAINT

ENT

MAINT

F 1 F 2DISPL PREV MODE

MAINT

ENT

From a.

Note 1

Note 2

Note 3

Note 4

To a.

6-21

< 6.INSTALLATION >

6.7 Switching of Voltage Output Range

Before switching of voltage output range, it is necessary to set the digital switch No.4. (Vide 6.3.3) The operation procedure is illustrated in the fi gure below.

At -5-A4, press the F 1 key to select the volt-age output range setting, the display then changes to that marked a.

The value selected at a is '0V to 5V' to change it to ' 1V to 5V', press the F 2 key. The display then changes to that marked b.

If the F 1 key is pressed at b, the display re-turns to a where '0V to 5V' is selected.

Setting of Master indicator

-5-A41 a.

Setting of digital SW4

0 1

F1

5V

+Full0 kn

Output voltage

Ship’s speed

5V

+Full- Full kn0

Output voltage

Ship’s speed

F2

5V

1V

+Full- Full kn

Output voltage

Ship’s speed

5V

1V

0 +Full- Full kn

Output voltage

Ship’s speed

NOTE

Current output is selected automatically as follows.

When selecting 0V to 5V output, current output is set 0 mA to 20 mA.

When selection 1V to 5V output, current output is set 4 mA to 20 mA.

F 1 F 2DISPL PREV MODE

F 1 F 2DISPL PREV MODE

MAINT

MAINT

F 1 F 2DISPL PREV MODE

MAINT

a.

-5-A4

-5-A5-5-A41 b.

6-22

< 6.INSTALLATION >

6.8 Serial Output Signal Format

Transmission type : Start-stop synchronization Baud rate : 9600 / 4800 / 2400 bps as per GPS interface setting Transmission distance : 1.2km Transmission period: 1 second (fi xed) Character format : Start bit 1

Data bit 7 / 8 bit as per the GPS interface setting Stop bit 1 / 1.5 / 2 bit as per the GPS interface setting Parity non / odd / even as per the GPS interface setting

L S B

M S B

Start bit DATA bits Stop bit

Data format (conforms to IEC61162-1 and NMEA0183)

VBW

$ V M V B W DATA * SUM1 SUM2 CR LF

VM : Electromagnetic log VBW : water speed / ground speed

End of sentence

Checksum

Identifi cation of checksum

Identifi cation of data type

Sender

Start of sentence

VHW

$ V M V H W DATA * SUM1 SUM2 CR LF

VM : Electromagnetic log VHW : Nautical speed

End of sentence Checksum Identifi cation of checksum Identifi cation of data type Sender Start of sentence

6-23

< 6.INSTALLATION >

VLW

$ V M V L W DATA * SUM1 SUM2 CR LF

VM : Electromagnetic log VLW : Distance Traveled

End of sentence Checksum Identifi cation of checksum Identifi cation of data type Sender Start of sentence

Checksum The characters in the area from next "$" to immediately "*" are EXCLUSIVEORed (on a bit-by-bit basis), and then the result is divided into two groups: the upper 4 bit and the lower 4 bit. These two groups (SUM1 and SUM2) are further converted into ASCII, and used as checksum data.

Format of the data section

1. IEC61162-1 format

EML input (dual-axis system) VBW data

, /- 101 100 . 10-1 10-2 , /- 101 100 . 10-1 10-2 , A/V , , , V , , V , , VNUllNUll

Longitudinal water speed(kn) Transverse water speed(kn) A:Valid V:Invalid

VHW data

, , , , , 101 100 . 10-1 10-2 , N , 102 101 100 . 10-1 10-2 , K

Longitudinal water speed(kn) N:kn Longitudinal water speed(km/h)

VLW data

, 103 102 101 100 . 10-1 10-2 , N , 103 102 101 100 . 10-1 10-2 , N , , , , EML input (single-axis system) VBW data

, /- 101 100 . 10-1 10-2 , , A/V , , , V , , V , , V Null

VHW data The same EML input (dual-axis system)

6-24

< 6.INSTALLATION >

VLW data The same EML input (dual-axis system)

GPS input VBW data

, /- 101 100 . 10-1 10-2 , , A/V , /- 101 100 . 10-1 10-2 , , A/V Null Null

Longitudinal water speed(kn) (*1) Longitudinal ground speed(kn) (*1) A:Valid V:Invalid

A:Valid V:Invalid

VHW data The same EML input (dual-axis system) (*1)

VLW data The same EML input (dual-axis system)

In the case of system error detection (*2) VBW data

, , , V , , , V , , V , , V

VHW data

VLW data

*1: The water speed of the ground speed is set to the speed fi eld ot the output sentence depedng on the content of the speed of the GPS. input sentence.

*2: Whenever the A/D conversion error is detected, system error will occur, in case of the EML input.

Whenever the Communication error No.2 (with the GPS) is detected, system error will occur, in case of the GPS input.

(In this case, the input mode will be changed the EML input automatically.)

Whenever the any factor is detected, ROM error, RAM error, system error will occur, in all cases.

6-25

< 6.INSTALLATION >

2. NMEA0183 Version 2.3 format

EML input (dual-axis system) VBW data

, /- 101 100 . 10-1 10-2 , /- 101 100 . 10-1 10-2 , A/V , , , V , , V , , VNUllNUll

Longitudinal water speed(kn) Transverse water speed(kn) A:Valid V:Invalid

VHW data

, , , , , 101 100 . 10-1 10-2 , N , 102 101 100 . 10-1 10-2 , K

Longitudinal water speed(kn) N:kn Longitudinal water speed(km/h)

VLW data

, 103 102 101 100 . 10-1 10-2 , N , 103 102 101 100 . 10-1 10-2 , N

Total distance traveled(NM) Trip distance(NM)

EML input (single-axis system) VBW data

, /- 101 100 . 10-1 10-2 , , A/V , , , V , , V , , V Null

VHW data The same EML input (dual-axis system)

VLW data The same EML input (dual-axis system)

GPS input VBW data

, /- 101 100 . 10-1 10-2 , , A/V , /- 101 100 .