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2  OPERATION

2.1  General

The IS12 Mega is a large digit multifunction repeater that can
display data either from any IS12 master unit (Fig 2.1) -

IS12 Mega

8

E04252

or from other equipment via NMEA0183 (Fig 2.2) -

Fig 2.1 - Mega displays as IS12 system repeaters

Fig 2.2 - Mega displays as NMEA repeaters

MEGA

MEGA

MEGA

IS12 SPEED

IS12 DEPTH

IS12 WIND

Содержание Simrad IS12

Страница 1: ...A L W A Y S A T T H E F O R E F R O N T O F T E C H N O L O G Y ...

Страница 2: ......

Страница 3: ...Instruction Manual III Simrad IS12 Mega Instrument M A N U A L ...

Страница 4: ...on and maintenance instructions without notice as part of our policy of continuous development and improvement No part of this publication may be reproduced stored in a retrieval system or transmitted in any form electronic or otherwise without prior permission from Simrad Ltd No liability can be accepted for any inaccuracies or omissions in the publication although every care has been taken to ma...

Страница 5: ...guration 17 3 2 Operation Modes 19 3 2 1 IS12 Mode 19 3 2 2 NMEA Mode 20 3 3 Local Network Backlighting 21 3 4 Disable Remote Control 22 4 INSTALLATION 4 1 Instrument Head Installation 23 4 1 1 Front Mounting 23 4 1 2 Rear Mounting 25 4 2 Electrical Installation IS12 Mode 26 4 2 1 Network Termination 27 4 2 2 NMEA Input Output 28 4 3 Electrical Installation NMEA Mode 29 4 4 Electronic Interference...

Страница 6: ...easily accessed thanks to IS12 s intuitive user friendly control system Thank you for choosing Simrad If you are pleased with your instrument we hope you will be interested in our range of marine electronic equipment which is manufactured to the same high standards as IS12 Please contact your nearest Simrad Agent for a catalogue showing our increasing range of high tech navigational instruments GP...

Страница 7: ...standard sin gle cable Fig 1 2 Instruction Manual 7 E04252 Additional instruments can be added to the system to act as repeaters for example at the chart table of a sailboat or the fly bridge of a powerboat Thus as shown in the example above the Mega instruments repeat the information from the main instruments Fig 1 2 IS12 Network System COMBI CONTROLLER ALARM DATA COMPASS MEGA MEGA WIND WIND Tx C...

Страница 8: ... repeater that can display data either from any IS12 master unit Fig 2 1 IS12 Mega 8 E04252 or from other equipment via NMEA0183 Fig 2 2 Fig 2 1 Mega displays as IS12 system repeaters Fig 2 2 Mega displays as NMEA repeaters MEGA MEGA MEGA IS12 SPEED IS12 DEPTH IS12 WIND ...

Страница 9: ...High Wind Alarm Setting MAGº Magnetic Compass Bearing TRUEº True Compass Bearing COG M Course Over Ground Magnetic COG T Course Over Ground True SOG Speed Over Ground BTW Bearing To Waypoint XTE Cross Track Error These pages are factory preset to on see section 3 1 NOTE Although Lat Long cannot be displayed by the Mega this data is converted to IS12 format and can be displayed on any IS12 Data dis...

Страница 10: ... have no incoming data refer to section 3 1 for further details MEGA LIGHT INFO MEGA LIGHT INFO MEGA LIGHT INFO MEGA LIGHT INFO MEGA LIGHT INFO MEGA LIGHT INFO MEGA LIGHT INFO MEGA LIGHT INFO MEGA LIGHT INFO MEGA LIGHT INFO MEGA LIGHT INFO MEGA LIGHT INFO MEGA LIGHT INFO MEGA LIGHT INFO MEGA LIGHT INFO MEGA LIGHT INFO ...

Страница 11: ... 11 E04252 MEGA LIGHT INFO MEGA LIGHT INFO MEGA LIGHT INFO MEGA LIGHT INFO MEGA LIGHT INFO MEGA LIGHT INFO MEGA LIGHT INFO MEGA LIGHT INFO MEGA LIGHT MEGA LIGHT INFO MEGA LIGHT INFO INFO Fig 2 4 All data pages available ...

Страница 12: ... process the data sentence for example to calculate True Wind data both Wind and Boat Speed informa tion are required Please refer to section 5 1 for full details of the incoming information required for each data page 2 2 4 Cancelling Alarms If an alarm is triggered by a master unit the Mega will switch to the relevant data page The alarm will sound on the Mega and the alarm icon and top line of ...

Страница 13: ...ata The first is a standard 0 180º display which shows the wind angle relative to the boat and the current tack Fig 2 6 MEGA LIGHT Fig 2 6 Full wind angle display INFO MEGA LIGHT Fig 2 7 Close Hauled wind angle display INFO The second option shows the wind angle as 0 90º relative to the bow or stern of the boat Fig 2 7 ctd ...

Страница 14: ... Running starboard tack Running port tack Close hauled port tack Close hauled starboard tack Fig 2 8 Wind direction indicator Close Hauled Fig 2 9 Wind direction indicator Running 2 2 6 VMG Velocity Made Good The VMG page is generated by the Mega itself In order for this information to be generated Boat Speed Apparent Wind Angle and Apparent Wind Speed data are required The top line of the display...

Страница 15: ...rge digits will show the current lighting level Fig 2 12 LIGHT INFO Fig 2 12 Turning Backlighting On INFO LIGHT 2 2 7 XTE Cross Track Error The Cross Track Error XTE is the amount of deviation from the ideal track to the target waypoint displayed as a distance from the track The arrow on the top line of the display indicates the direction of the error from the track Fig 2 11 MEGA WPT 2 WPT 1 0 41n...

Страница 16: ...cific instrument With Network control all instruments in the network will be affected See Section 3 2 for more details 2 4 Remote Control Alarm Option The optional remote control allows all functions of each instru ment to be remotely controlled The keypad labelling corre sponds directly with that of the Mega instrument Fig 2 13 Fig 2 13 IS12 Remote Control Any alarms sounded are also repeated on ...

Страница 17: ... 1 Once in calibration mode pressing the LEFT and RIGHT keys will cycle through the available calibration options Page Configuration Section 3 1 Operation Modes IS12 NMEA Section 3 2 Local Network Backlighting Section 3 3 Disabling Remote Control Facility Section 3 4 To exit calibration mode press and hold LIGHT MEGA LIGHT INFO Fig 3 1 Entering Calibration Mode INFO LIGHT ...

Страница 18: ... press INFO The current data page and its display status will be shown Fig 3 2 MEGA LIGHT INFO Fig 3 2 Page configuration status On indicates that this data page is currently enabled To scroll through the data pages and view their configuration sta tus press the and keys To toggle this page on off press INFO With the page dis abled it will not be displayed when scrolling through the data pages Pre...

Страница 19: ...pment on the network In this mode any third party navigational master units con nected to the Mega via the NMEA In terminals will be repeated by the Mega display and this data will then be passed onto the IS12 network Incoming NMEA instrument data i e speed depth wind etc cannot be displayed NOTE Only one instrument can receive NMEA data in an IS12 instrument system NOTE If the same item of data i...

Страница 20: ...ved or transmitted to any IS12 units connected to the Mega via the network ports The NMEA Out terminals will retransmit the following data NMEA0183 instrument data NMEA0183 navigational data NMEA In Instrument Nav Data NMEA Out Instrument Nav Data Fig 3 3 Installation example NMEA Mode 12v in To switch between IS12 NMEA modes enter calibration mode and press once the display will show MODE CAL Pre...

Страница 21: ...Enter calibration mode press once the display will show LIGHT CAL and press INFO The top line will show the current setting NET for Networked or LOC for Local The setting can be changed using the or keys Fig 3 4 LIGHT INFO Fig 3 4 Changing from Network to Local Backlighting To set the selected backlighting press The display will then return to the main calibration menu NOTE Press to exit to the ma...

Страница 22: ...gits will show the current setting ON for remote control enabled or OFF for remote control disabled The set ting can be changed using the or keys To set the selected mode press The display will then return to the main calibration menu NOTE Press to exit to the main calibration menu at any point NOTE Any changes will affect this specific instrument only For further information on Remote Control ope...

Страница 23: ...a curve greater than 1mm 1 25 in across the mounting area If fixing to an uneven surface care should be taken not to overtighten the screws When choosing a location consider ation should be given to the water integrity of the gasket seal if the surface is not flat IS12 is designed to be weatherproof but the rear of the instrument case with its electrical connections should be protected from moistu...

Страница 24: ... cover supplied The easiest way to fit the keypad and the bezel to the installed instrument head is to locate the keypad in the keyholes in the bezel and then offer this up to the instrument head angling the bezel back slightly to prevent the keypad falling out The bezel should click into place when located correctly Fig 4 3 To remove the bezel simply lift the top edge of the bezel slightly to dis...

Страница 25: ... 4 5 Tools required for installation Drill 5mm 0 2in drill bit Fretsaw A fine toothed file To assist in cutting a precise aperture for the display a self adhesive template is supplied with the unit Fig 4 6 Fix the template in the correct position and drill four 5mm holes on the waste side of the four corners of the aperture Starting from one of these holes carefully cut along the dotted line aroun...

Страница 26: ... that they will always be cor rectly oriented when inserting the cable into the instrument the flattened edge of the connector should be facing down when inserting Fig 4 8 Fig 4 8 Rear Connections Flattened edge Network Bus Ports The first link in the IS12 system is the power cable which should be connected to the boat s 12v DC supply via a 3 Amp breaker or fuse as follows Red wire 12v DC Black wi...

Страница 27: ...ther IS12 instruments b There is already a terminator fitted to the system There should only be one terminator fitted per system c The system includes an IS12 Wind Transducer The Wind Transducer has an inbuilt network terminator d The total system cable length excluding the power cable is less than 5m A small IS12 system does not require a termina tor If the installation does not meet any of the a...

Страница 28: ...IN connections of the interfaced equip ment The two terminals marked NMEA IN Data and NMEA IN Common should be connected to the NMEA OUT connec tions of the interfaced equipment Fig 4 12 NMEA Connections IS12 Mode When in IS12 Mode the Mega can receive and display incom ing navigational data via NMEA not NMEA instrument data and will output IS12 instrument data depending on the mas ter units in th...

Страница 29: ...ows Red wire 12v DC Black wire 0v The Mega is interfaced to external equipment using the crimp terminals supplied To ensure a good connection when fitting the terminals to the interface cable fold back the exposed wires over the insulation before inserting into the terminal Fig 4 13 Use a good quality crimp tool to crimp the terminals The two terminals on the rear of the unit Fig 4 14 marked NMEA ...

Страница 30: ... interconnection NMEA Mode For further details of NMEA sentences received transmitted see Section 5 2 4 4 Electronic Interference Suppression IS12 has been designed to minimise the effects of interference generated by the engine alternator However precautions should still be taken by routing the cables away from the engine compartment Do not run the cables down trunking carrying high current cable...

Страница 31: ...nly An IS12 Speed or Combi instrument Maximum Speed Mode 1 only An IS12 Speed or Combi instrument Race Start Timer Mode 1 only An IS12 Speed or Combi instrument Depth Mode 1 An IS12 Depth or Combi instrument Mode 2 DPT or DBT Shallow Alarm Setting Mode 1 only An IS12 Depth or Combi instrument Deep Alarm Setting Mode 1 only An IS12 Depth or Combi instrument AWA Apparent Wind Angle Mode 1 An IS12 Wi...

Страница 32: ...s Bearing Mode 1 An IS12 Compass transducer instrument with magnetic variation data entered Mode 2 HDG or VHW with magnetic variation data entered in master unit COG M Course Over Ground Mag Mode 1 An IS12 Compatible GPS Chartplotter or VTG Mode 2 VTG COG T Course Over Ground True Mode 1 An IS12 Compatible GPS Chartplotter with magnetic variation data entered or VTG RMA or RMC Mode 2 VTG RMA or RM...

Страница 33: ...e MTW Water temperature DBT Water depth DPT Water depth inc offset MWV Apparent wind angle speed HDG Heading mag true Mode 2 NMEA Repeater Mode Received Data VHW Boat speed heading mag true MTW Water temperature DPT Water depth inc offset MWV Apparent true wind angle speed HDG Heading mag true VTG Course over ground mag true speed over ground VWR Apparent wind angle speed RMA Speed course over gro...

Страница 34: ...on network available Faulty connection to master unit Check data cable links No NMEA Input Output NMEA connections reversed Check NMEA connections These simple checks should be carried out before seeking tech nical assistance and may save time and expense Before contact ing your servicing agent please note the unit s serial number 5 4 Spares Accessories The following spares and accessories are ava...

Страница 35: ...ase to the contacts each season The unit is guaranteed for 2 years from date of retail sale If it is necessary to have the unit repaired return it carriage prepaid to the agent in the country of purchase with a copy of the receipted invoice showing the date of purchase Where possible return all the components unless you are certain that you have located the source of the fault If the original box ...

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Страница 40: ...A L W A Y S A T T H E F O R E F R O N T O F T E C H N O L O G Y www simrad com ...

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