I S 2 0 MANUAL IS20 Analog Instrument series 20222584 / A English Sw.1.
Copyright All rights reserved. No part of this document may be reproduced or otherwise copied without prior written permission of Navico Holding AS. © 2007 by Navico Egersund AS About this manual This manual is a reference guide for installing and operating the Simrad IS20 Graphic instrument. The manual does not include operator or installation procedures for sensors that can be connected to the system. In this manual, names of menu commands, dialog box text and keys are written in boldface (e.g.
Content 1 Introduction ............................................... 5 1.1 General information.................................. 5 1.2 Instrument layout .................................... 5 1.3 IS20 system examples.............................. 6 2 Operation.................................................... 9 2.1 Turning the IS20 on ................................. 9 2.2 Backlighting .......................................... 10 2.3 Scrolling through function displays ........... 11 2.
5 Configuration ............................................ 35 5.1 General ................................................ 35 5.2 No calibration function available ............... 35 5.3 IS20 Rudder.......................................... 36 5.4 IS20 Compass ....................................... 40 5.5 IS20 Wind and IS20 Tack ........................ 45 6 Maintenance ............................................. 49 6.1 General maintenance.............................. 49 6.
1 Introduction 1.1 General information The IS20 analog instruments are a range of four instruments that provide useful information for the boater in a classical fashion. They are individually designed to a particular main function such as rudder angle, compass heading, wind angle and speed and close hauled sailing. They are all compatible with the unique SimNet network and can easily be mounted adjacent to each other and interconnected in a daisy chain.
The instruments are provided with a back lighted scale and the pointer is driven by a microstep motor that gives excellent precision and no overshoot. The LCD display offers information complementary to the scale as well as set-up support when installing and calibrating the instrument. The display may be set to red or white illumination color, and the contrast and light level are adjustable. The instrument is equipped with 2 SimNet connectors and one NMEA0183 input (listener) connector.
IS20 Rudder, Basic system IS20 Compass, Basic system IS20 Wind or Tack, Basic system Introduction | 7
IS20 Expanded system 8 | Introduction 12V SimNet supply Red disk Analog speed/temp sensor T-joiner Active depth transducer Wind transducer
2 Operation It is required to read and understand the content in this chapter. The remaining descriptions and illustrations in this manual assumes that the user is familiar with how to operate keys and how to navigate in the menus! 2.1 Turning the IS20 on IS20 has no power key, and will be running as long as power is connected. The IS20 includes a power save function. Refer page 19. When power is applied the LCD will show the product name (IS20) followed by software version.
2.2 Backlighting The display backlight may be adjusted at any time.
2.3 Scrolling through function displays The IS20 Analog instruments may show several functions, displayed by using the Up and Down keys. 3 arrows at the top of the LCD indicate which function that is displayed. The arrow symbols are identified by legends printed on the scale.
IS20 Wind / IS20 Tack The Wind/Tack instruments can display 5 different functions. The legends are used to indicate an active function as shown in the table below.
2.4 Using the heading lock function The IS20 Rudder and IS20 Compass instruments include a heading lock function. When this function is activated, the LCD will show heading deviation compared to the vessel’s heading when the function was activated.
2.5 Operating the menu system All functions and settings in the IS20 analog instruments are available from the menu system, activated by pressing the Enter key. The keys are used as shown below to navigate in the menu system: KEY SINGLE PRESS PRESS AND HOLD Confirm a selection/parameter setting Go to previous/next menu item, increase/decrease parameter value The illustration on next page shows menu navigation and required key presses when changing the damping factor from “3” to “4”.
Operation | 15
Menu illustrations In this manual, the first steps in a menu operation are illustrated by overlapping menu windows. Number of underlying menu windows are indications only and do not correspond to actual key presses. When more detailed illustrations are required to show key presses and screens, this is shown as below: 2.
Display profile The day and night display profiles controls the light color for the display and the keys. The profiles are utilized in installations where several instruments are configured as part of a SimNet backlight group as described on page 18. LCD Parameter Default Day profile Day Night profile Display color The light color is defined for the selected display profile.
2.7 SimNet backlight group The SimNet backlight group function is used to globally control the light setting for groups of units. This option is used on larger vessels where many units are connected via the SimNet network. By assigning several units to the same group, a backlight change on one unit will have the same effect on the rest of the group members. The SimNet backlight groups are normally configured during installation, but may be changed at any time.
2.8 Setting the damping factor The damping factors indicate how fast the display will respond to changes. The higher damping factor the more stable display reading on the instrument. Range Change per step Default value 0-9 1 4 2.9 Power save function When power save is activated, the display will be turned off. Any key press or activated alarm will disable the power save function.
2.10 Demo mode The IS20 includes a demo mode useful for demonstrations and on show. Once selected the demo mode will be active even if the instrument is turned off. Demo mode is turned OFF with the same procedure as used when it was turned ON. When demo mode is selected on a unit in a system of interconnected SimNet products, they will all go to Demo mode.
3 IS20 Alarm system 3.1 Alarm indication The alarm system in the IS20 analog instruments is activated if any alarm settings are exceeded. Refer to Alarm setup, page 45. When an alarm is activated, the alarm will be indicated with an alarm ID and with an audible alarm. The different alarm indications are shown in the table below.
The following alarms are available on the IS20 Analog instruments: Alarm ID * Alarm Source ShAL Shallow water alarm dEEP Deep water alarm AnCh Anchor watch / change in depth chnG True wind shift alarm Wind/Tack High True wind speed too high Wind/Tack Lo True wind speed too low Wind/Tack oFF.C Off course alarm Er.xx Local unit failure Internal * AL.xx Any other alarm Any * The xx will be replaced by the global alarm id. Refer Alarm codes, page 23.
3.3 Alarm codes If the text is received from other units connected to SimNet, the alarm text may not be displayed. The alarm condition will then be indicated with a code as listed in the table below.
Alarm ID 24 | Alarm system Alarm 33 Autopilot control communication failure 34 Autopilot function communication failure 35 Non volatile memory failure
4 Installation 4.1 Location of the unit The IS20 should be mounted with special regard to the unit’s environmental protection, temperature range and cable length. Refer to page 53. Avoid mounting the unit where it is easily exposed to sunlight, as this may shorten the lifetime of the display. 4.2 Mechanical installation Panel mounting The mounting surface must be flat and even to within 0.5 mm. 1.
Bracket mounting An optional bracket is available for the IS20. The illustration below shows the mounting details for the bracket.
4.3 Cable connection The IS20 may be connected to: − a SimNet network using SimNet cables − an NMEA2000 system − an NMEA0183 output port SimNet/ NMEA2000 SimNet/ NMEA2000 NMEA0183 In SimNet The SimNet cable system with very small plugs in both ends makes it easy to run the cables. Only 10 mm (3/8”) holes are required through panels and bulkheads. The SimNet accessory program contains the necessary items to make a successful installation. Refer SimNet cables and accessories, page 51.
If you plan to extend your SimNet system in the future it may be advantageous to prepare for it by adding a few Tjoiners in central locations. The T-joiners provide easy access to the network and can be replaced with a new product, or the new product can be connected via a drop cable. The connectors are weather proof according to IP66, when properly installed. All unused SimNet connectors must be fitted with the plastic cap to protect them against dirt and moisture.
SimNet network, small system Installation | 29
SimNet network, medium system 30 | Installation Multijoiner T-joiner 5,5 m 5,5 m Chart Plotter 10 AUTO 1 1 10 STB Y PWR TURN AP 24 5m RF25 Rudder Feedback Analog Speed/Temp sensor Instrument Autopilot Computer 12V SimNet supply (SimNet cable without terminator) 5,5 m Compass MENU MODE Autopilot 5,5 m T-joiner Wind transducer * Active depth transducer SimNet drop cable SimNet backbone Non SimNet Termination plug Instrument 20 m/30 m/40 m
SimNet network, expanded system Installation | 31
1. Maximum total length of SimNet cables is 150 m (500 ft.) 2. Drop cables must not exceed 6 m (19 ft) of length and the total length of drop cables must not exceed 60 m (200 ft). 3. Equipment should not be daisy-chained in a drop cable. 4. The wind transducer (*) has a built in terminator.
Connecting IS20 to an NMEA0183 output unit The IS20 instrument may be used as repeater for data from a device with an NMEA0183 output port (NMEA “talker”). Use a repeater that is suitable for the type of data you want to present and the way you want it presented, i.e. digital or analog, multiple data from a GPS/Chart plotter or heading from a compass. Use the NMEA0183 Interface cable (part no 22098495) to connect an NMEA0183 output device to IS20.
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5 Configuration 5.1 General In this section the configuration procedure is described completely for each instrument type. IS20 Rudder: page 36 - 39 IS20 Compass: page 40 - 44 IS20 Wind/Tack: page 45 - 48 5.2 No calibration function available Some sensors that supply data on SimNet may not have or offer access to a calibration function. Missing calibration function is indicated as shown in the illustration.
5.3 IS20 Rudder Setting the heading reference The IS20 Analog instruments may be set to reference either Magnetic or True heading.
Heading offset The compass heading should be checked against a known reference, a compensated compass or a bearing. If any permanent heading offset is present, use the heading offset parameter to compensate for the error. Range Change per step Default value Units -180 - +180 1 0 ° Rudder feedback calibration The rudder calibration is used to compensate for any non-linearity in the transmission between the rudder and the rudder feedback unit. Adjusting the maximum rudder angle 1.
Setting the rudder zero position This adjustment should be made in calm sea. Side forces from wind or current should be avoided. 1. Bring the boat up to cruising speed, and head directly into the wind 2. If the boat has twin engines, synchronize the engine RPM's 3. Set the trim tabs and stabilizers to have no effect on the boats heading 4. Steer the boat manually on a steady course 5.
Setting the unit’s instance number The instance number is used to identify multiple units of the same model when connected to a SimNet or NMEA2000 network. The instance number is added to the product name e.g. IS20-3 for easy identification of the unit.
5.4 IS20 Compass Setting the heading reference The IS20 Analog instruments may be set to reference either Magnetic or True heading.
Setting the magnetic variation If the instrument is connected to a GPS the magnetic variation compensation will be read from the GPS, and it will not be possible to adjust the magnetic variation. If a GPS is not connected the magnetic variation may be entered manually.
Compass calibration Do not attempt to start calibration when the IS20 and an autopilot are part of the same system unless the autopilot is in STBY mode! Before the compass calibration is started, make sure that there is enough open water around the vessel to make a full turn. The calibration should be done in calm sea conditions and with minimal wind to obtain good results. Use about 6090 seconds to make a full circle. 1. Begin turning the boat to port or starboard 2.
Heading offset The compass heading should be checked against a known reference, a compensated compass or a bearing. If any permanent heading offset is present, the heading offset parameter should be used to correct for the error.
Setting the unit’s instance number The instance number is used to identify multiple units of the same model when connected to a SimNet or NMEA2000 network. The instance number is added to the product name e.g. IS20-3 for easy identification of the unit.
5.5 IS20 Wind and IS20 Tack Alarm setup The IS20 may be set up to sound an alarm if w parameters exceeds preferred values. The alarm monitoring is disabled by setting the value to Off. Wind shift alarm The wind shift alarm will monitor the wind angle. The reference angle is set when the alarm is turned on, and reset to present wind angle when an alarm is acknowledged.
Wind speed alarms The true wind alarms may be set for high and low wind measurements: − True wind speed too high − True wind speed too low The illustration example shows how to set the True wind alarm limit.
Setting the units of measure The displayed units for wind and boat speed may be set according to the table below. Parameter Wind speed unit Options Default − kn − mph kn − m/s Boat speed unit − kn − mph kn − km/h The illustration example shows how to set the Wind speed unit.
Calibrating the wind sensor The IS20 instruments can be automatically corrected for any error in the wind sensor mounting. 1 Bring the boat up to cruising speed, and head directly into the wind 2 Press the keys as illustrated below to perform the automatic calibration Setting the unit’s instance number The instance number is used to identify multiple units of the same model when connected to a SimNet or NMEA2000 network. The instance number is added to the product name e.g.
6 Maintenance 6.1 General maintenance The IS20 instruments are “repair by replacement” units, and the operator is therefore required to perform only a very limited amount of preventive maintenance. If the unit requires any form of cleaning, use fresh water and a mild soap solution (not a detergent). It is important to avoid using chemical cleaners and hydrocarbons such as diesel, petrol etc. Make sure that all open SimNet connectors are fitted with a protection cap (part no 24006355).
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7 Spare parts 7.1 Spares and auxiliaries Part no. Description 22096028 IS20 Rudder instrument head 22096655 IS20 Compass instrument head 22096002 IS20 Wind instrument head 22096671 IS20 Tack instrument head Mounting kit including: 22096630 − 4 screws − 4 corners 22096515 Weather cover 22096820 Bracket kit 1 24006355 SimNet blocking plug 22098495 NMEA0183 Interface cable 2.
7.2 SimNet cables and accessories Art. no. Description 24005829 0.3 m (1') SimNet cable (SDC:0.3M) 24005837 2 m (6.6') SimNet cable (SDC:02M) 24005845 5 m (16.6') SimNet cable (SDC:05M) 24005852 10 m (33') SimNet cable (SDC:10M) 24005860 SimNet T-joiner (SDJ) (3p) 24006298 SimNet Multijoiner (7p) 24006306 SimNet Bulkhead T-connector 24005878 SimNet cable gland 24005886 SimNet protection plug 24005894 SimNet termination plug 24005902 2 m (6.
8 Specifications 8.1 Technical specifications Weight: .............................................. 0,3 kg (1.1 lbs) Power consumption ............................................1,3 W Color:............................................................... Black Display: Type:.... Custom made 4 characters 7 segment LCD Illumination (Red or white): . Adjustable in 10 steps Environmental protection: Front .........................................................IP56 Back:.......................................
8.2 Dimensional drawing 114 [45.1"] 114 [45.1"] 21 [8.3"] 17 [6.6"] Ø88 [34.6"] 44 [17.
8.
Display Description Demo mode Save power Exit menu (return to function display) 56 | Specifications Range Default On – oFF oFF
IS20 Compass Display Description Range Default Backlight day/ night day/nitE day Backlight Color white/red Whte/red Whte Backlight Group 0–6 Damping, Apparent Wind 0–9 1 0 – 63 0 Local reset YES – no YES Demo mode On – oFF oFF Heading unit Magnetic variation Compass calibration Compass offset adjust Device Instance number Save power Specifications |57
Display Description Exit menu (return to function display) 58 | Specifications Range Default
IS20 Wind and IS20 Tack Display Description Range Default Backlight day/ night day/nitE day Backlight Color white/red Whte/red Whte Backlight Group 0–6 Damping, Apparent Wind 0–9 1 Alarm, Wind shift Off, 5-90 Alarm, True wind speed too high Off, 1 – 60 Off Alarm, True wind speed too low Off, 1 – 60 Off Wind Speed units knot, MS, Mph Boat Speed units Wind offset, auto adjustment Device Instance number knots, Mph, KMh YES – no knot knots YES 0 – 63 0 Local reset YES – no YES
Display Description Save power Exit menu (return to function display) 60 | Specifications Range Default
