Standard Horizon DS41 User's Manual
Contents
1. 1 Apply power while holding down the w key g Hold down during power up 2 When the unit is on The display will indicate the current display unit example 3 Continue to hold the w key until the display indicates the current master slave selection Master Slave 4 Use the A and w keys to change the selection 5 To exit this mode press and hold both the A and v keys simultaneously Alternatively if no keys are pressed for a period of 5 seconds normal depth display will resume ey 7 Press simultaneously Note When a slave has no depth information the display will alternate between and SL This will occur if the master unit has no depth reading or if the data link from the master is inadvertently broken Linked or Separate Selection By default a dual station pair of DS41 instruments automatically keep the following settings the same in both instruments Alarms On Off Alarm Values Deep and Shallow Keel Offset see note Units of measure see note Example Switching an alarm off on the slave instrument will also switch the alarm off on the master instrument The reverse also applies alarms changed on the master will be automatically changed in the slave instrument Note The keel offset and units of measure should only be changed on the Master instrument If independant settings are required the link feature can be disabled To enable or disable the linked mode 1 Apply power w2. 7 In Hull Installation DS41 Owner s Manual Appendix A Dual Station Operation Multiple DS41 instruments can be installed on a single vessel These instruments can be connected together and configured to operate in a dual station configuration One instrument is designated as a master and all other instruments connected to it are configured as slaves The master device is connected to the depth transducer and determines the water depth This information is then displayed on all slave devices connected to it Slave devices do not have transducers connected to them The slave devices can be configured to operate as fully functional NMEA repeaters where they display water depth as displayed on the master device and share common alarm settings and keel offset values In this mode the common alarm settings can be changed or activated deactivated from either the master or slave devices Alternatively the slaves can be configured to operate as independent slaves In this mode the slaves display the water depth received from the master but have independent alarm settings and keel offset values Note The instrument designated as the master device is the only instrument connected to the depth transducer See the Wiring Connection section for dual station wiring details Also see the Instrument Setup section for configuration details DS41 Owner s Manual Master Slave Selection To select the master slave mode of operation
3. Do not use a fairing block of any type when mounting the plastic low profile transducer Hauling or impact can cause structural failure of the housing assembly Do not expose a plastic thru hull transducer to solvents Strong solvents such as acetone and methylene chloride attack many types of plastics and dramatically reduce the strength of plastic parts Accumulation of grease or grime may be removed with a damp cloth and mild household detergents Note Transducer cable may be extended up to 15 additional feet but depth performance may be affected Use 22 gauge two wire shielded cable using RCA Phono connectors or use EX375D 15 foot extension cable DS41 Owner s Manuel Sailboats On sailboats the transducer should be mounted where the acoustic beam will not be shaded by the keel A spot forward of the keel is usually best Try to find an accessible spot with a minimum deadrise angle See Figure 4 Powerboats On O s transducers mounted close to the engine usually yield good results On inboards always mount the transducer well ahead of the propeller Turbulence from propellers seriously degrades transducer performance Make sure that the transducer is not shaded by the prop shaft s On displacement hull powerboats such as trawlers the transducer should be mounted amidships relatively close to the keel centerline of the hull On planing powerboat hulls the transducer should be mounted well aft and c
4. dB quieting on any marine radio channel with 3 dB gain antenna within one meter of the instrument Complies with CE EMC standards EN50081 1 and EN50082 1 Alarm Off Change Value Down Operation Whenever power is applied the depth sounder is active and water depth is displayed If the sonar signal does not show a bottom the display will indicate This can occur if the water is aerated or the maximum depth is exceeded Note The maximum depth decreases as boat speed increases Alarms Two types of alarms can be set the Deep Alarm and the Shallow Alarm The Deep Alarm can be set as high as 184 meters 605 feet while the Shallow Alarm can be set as low as 0 3 meter 1 foot Whenever the water depth is greater than the Deep Alarm setting and the alarm is enabled an alarm will sound The alarm repeats two short beeps and alternates DAL and the water depth on the display Whenever the water depth is less than the Shallow Alarm setting and the alarm is enabled an alarm will sound The alarm repeats a single long beep and alternates SAL and the water depth on the display Alarms On Off Alarm settings are saved in memory To turn the alarm on press the A ON key An arrow on the lower right corner of the display will show next to the Alarm Bell to indicate that the alarms are on tet a To turn the alarms off press the w OFF key The arrow in the lower right corner will extinguish Q Note Th
5. STANDARD HORIZON DS41 Digital Depth Sounder Owner s Manual e Standard 2 Inch Installation e Dual Station Operation e NMEA Repeater e Reads in Feet Fathoms or Meters e Adjustable Prop or Surface Offset e Shallow and Deep alarms Contents SPeCifiGatiOms iia 2 Operativas 3 Alam isa ta e sb 3 Alarms OM Olas a leida 3 Shallow Alarmi erebai ta Rs 3 Desp Alarms iS AENA AAA A a i 4 INStHUMONT SOtU p ii etc ae cece deen ceed vectceeed Re dk Seeds encanta anateheet te 4 Keel Surface Offset cialis 4 Transductor aed 5 Units of Measures ceili dil atten wit ane dist eet ni ieee ad 5 TrOUDICSHOOTING aa E E E T 6 What comes with your Digital Depth Sounder sssssussussennnnnnnnnennnunnnnnnnnnnnnnnnnnnnnnnnnnnnn 7 St ndard sei Seri ee i eee Sc a eh 7 O eh A is eee hoes Asa set he ies 7 Replacement Pals unitat ad hte 8 Installato cssccicscccieessicesectssnidececncssdusadvessecsecoaandcnnctansduveseusareseaunddadsiuasiurasaeesduaudeseuacssuansude 9 Face Plate Installation voii caia 9 Instrument Installation incre 9 Transducer Installation oo a ee bate bia 11 Generals hvcecciscitecteid A E S A SallIDOALS is rar A ee etn a ad Powerboats Transom Installation oe an ee BA Ae 13 InzHull Installations estes ete eee ee AH eA R 13 Appendix A Dual Station Operation ccceccsscseeesseeeseeeseeeeeeeeseneeeeeeeseeeseeenseeeseeenees 14 Master Slave Selection ceceecceseceeeecseeeeeeeeeseeseaeeseeeeae
6. akes or outlets for live wells and engine cooling water and any protrusion that may cause turbulence or cavitation In Hull Installation Transducer installation inside a solid fiberglass hull may degrade performance of depth sounder Therefore this type of installation is not preferred over thru hull and transom installations Should the user desire to perform an in hull installation perform the following test to determine its suitability 1 Fill a thin plastic bag with water and suspend the transducer in the water 2 Hold the bag against the hull while the boat is moored and underway and check the reading on the instrument The reading should be relatively constant 3 The bag may have to be moved around the hull to find the best mounting location the best location will be close to the centerline away from any lifting strakes To Install After determining that the transducer will function inside the hull construct a water box to be used for installation 4 Use a PVC pipe with one end threaded and supplied with a screw on cap The PVC pipe should be 1 4 inch bigger than the bottom face of the transducer 5 Install the transducer as shown in Figure 7 6 To receive a proper echo from the bottom the bottom of the PVC pipe may have to be cut at the deadrise angle of the hull E OIL DEADRISE ANGLE CUT RUBBER GROMMET SEAL CAP PVC PIPE 4 TRANSDUCER Figure
7. can be programmed in 0 1 unit steps from 9 9 gt 9 9 feet or equivalent When programmed for a negative offset will be indicated on the left hand side of the display 6 To display depth below the keel enter the vertical distance between the bottom of the keel and the depth trasnducer as a negative value 7 To display depth below surface enter the vertical distance from the waterline to the depth transducer as a positive number no negative sign 8 To exit this mode press and hold both the A and v keys simultaneously Alternatively if no keys are pressed for a period of 5 seconds normal depth display will resume ey 17 Press simultaneously The display will now indicate the current water depth Transducer Setting A Transducer Setting is provided to allow the D41 to be used with different transducer types The default setting 0 0 is used for most transducers Some transducers ring after the sonar transmit pulse just like hitting a bell This ringing can be interpreted as an echo from a shallow bottom The setting is used to increase the required level that shallow echoes must meet before they will be displayed If the D41 gives repeated false readings of 1 5 to 3 feet depth while in deep water the transducer setting should be increased Adjust it upward by 0 5 at a time and retest The range of values is 0 9 to 2 5 If the value is set too high it could cause erratic readings in shallow water Chan
8. e arrow will flash if alarms are turned ON but the shallow alarm is individually set to OFF See next section Shallow Alarm To set the shallow alarm 1 Press the A key for three seconds The display will show Press for 3 Seconds SAL a 2 After a few seconds the display will indicate the current Shallow Alarm depth setting 3 Use the A and keys to change the value If either key is held depressed for more than one second the reading will increase or decrease rapidly 4 When the alarm is set exit by pressing both the A and w keys simultaneously Alternatively if no keys are pressed for a period of 5 seconds the normal depth display will resume ey 17 Press simultaneously to exit Note If the reading is decreased to below 1 5 feet or equivalent the display will show OFF and the alarm will be disabled The alarm can also be disabled by pressing both the A and v keys for 5 seconds The word OFF will be displayed but the alarm depth will be retained for future use DS41 Owner s Manu Deep Alarm To set the deep alarm 1 Press the v key for three seconds The display will show Y Press for 3 Seconds 2 After two seconds the display will indicate the current Deep Alarm depth setting 3 Use the A and vw keys to change the value If either key is held depressed for more than one second the reading will increase or decrease rapidly 4 When the alarm is set exit by pressing both the A and w k
9. eeeaeseaeeseaeeseeseaeeseaeeeaeeteas 14 Linked or Separate Selection eeeeeeseseeseceeeeeeeeeeeseaeeeseeceaeeeseeeeaeteaeessaeeeaeensaee 15 Appendix B NMEA Repeater Mode csscccsssenseseeesseeeenseeeenseeeeaseeeeenseenenseeeeaseeeees 16 DS41 Owner s Manual DS41 HS 2G DS41 Owner s Manual Specifications Size Mount 2 51mm diameter hole Depth behind face plate 3 75 95mm max Display 3 character LCD Color Black with texture on bezel Backlighting Red colored diffused lighting for display Water Integrity Front will withstand direct water spray Depth Alarm Range 2 0600 feet 0 6184 meters 0 34100 fathoms to 9 9 in tenths Sensitivity 0 05mV RMS Transmit Power 36 W RMS nominal at 13 6 VDC Transducer 200 kHz 1900 pF 600 w parallel Display Updating 1 second Display is backlit for Night Operation Alarm On Change Value Up BS41 Owner s Manual STANDARD Operating Voltage 9 5 VDC to 16 5 VDC Operating Temperature OC to 50 C 32 F to 1227 Current Drain 150mA max including internal buzzer Data Input Output Single wire data output Input Dual station mode outputs NMEA DPT sentence Dual station inputs NMEA DPT sentence In the linked mode a dual station pair also transfer function settings eg Alarm on off NMEA Output DPT NMEA Input DPT and DBT External Buzzer Output 12VDC Buzzer 100 mA max RF Interference lt 6
10. eeeeeteas Part Number 568001012A Round Face Plate risiti ea Part Number 568002012A aski AA I Part Number RRDS410001 Mounting Bracket o ooomccccniconononoconaccnnonnnnnannorcnnneenancnnns Part Number 160001020A Mounting Nut cicatrices Part Number 580010123A BS41 Owner s Manual Installation Face Plate Installation 1 To install a face plate a Attach the face plate to the front panel of the instrument b Twist the face plate clockwise until tight To remove face plate twist it anticlockwise until loose and detach Instrument Installation The instrument can be easily installed in different types of instrument panels Refer to Figures 3 4 and 5 for the following steps 1 Select a suitable location for the instrument When selecting the location for mounting the following are recommended e Controls of the instrument must be accessible to the user e Electrical connections must be routed to the boat system as directly as possible e Location should provide as much protection from the elements as possible The panel for mounting the instrument should be 1 8 to 3 4 inch thick The space behind the instrument panel must have a depth of at least 3 75 inches See Figure 1 for dimensions of the instrument Drill a 2 inch hole on the instrument panel in the selected location With the mounting bracket removed insert the instrument into the hole until the back of the face plate is flu
11. eys simultaneously Alternatively if no keys are pressed for a period of 5 seconds the normal depth display will resume uy Y Press simultaneously to exit Note If the reading is increased one step above 600 feet or equivalent the display will show OFF and the alarm will be disabled The alarm can also be disabled by pressing both the A and w keys for 5 seconds The word OFF will be displayed but the alarm depth will be retained for future use 1DS41 Owners Manual Instrument Setup Keel Surface Offset An offset may be automatically added to or subtracted from the depth reading to compensate for the location of the transducer This allows the instrument to indicate the water depth relative to the bottom of the keel or the surface of the water To set the keel surface offset 1 Apply power while holding down the A key ey Hold down during power up 2 When the unit is on release the A key The display will indicate if the current offset is keel offset or waterline offset Hull Offset Depth below the keel Surface Offset Depth below the surface 3 After 5 seconds the display will indicate the current offset Note A negative offset is used to display depth below the keel and a positive offset is used to display depth below the surface 4 Use the A and w keys to change the value If either key is held depressed for more than one second the reading will increase or decrease rapidly 5 The offset
12. ging the Transducer Setting 1 Apply power while holding down the AON key The display will show either HOF or SOF for 7 seconds Continue to hold the key down 2 The display will show tdr 3 Release the key 4 After 2 seconds the display will show the Transducer Setting value eg 0 0 5 Use the A and w keys to change the value 6 To exit this mode press and hold both the A and v keys simultaneously Units of Measure To select the displayed unit 1 Apply power while holding down the w key OFF Hold down during power up 2 When the unit is on release the v key The display will indicate the current display unit with Feet Meters Fathoms 3 Use the A and w keys to change the value 4 To exit this mode press and hold both the A and v keys simultaneously Alternatively if no keys are pressed for a period of 5 seconds normal depth display will resume OFF Y amp Press simultaneously The display will now indicate the current water depth in the selected display unit DS41 Owner s Manud Troubleshooting No display 1 Check DC power connections and DC polarity with voltmeter 2 Check fuse No depth reading at all depths 1 Check transducer for growth or multiple coats of paint 2 Check the transducer cable for cuts and sharp bends 3 Check that the transducer connection behind the D41is firm and free of corrosion Erratic readings while moored Check transducer for growth or mu
13. hile holding down the w key Y Hold down during power up 2 When the unit is on The display will first indicate the current display unit Example 3 Continue to hold the v key The display will indicate the current master slave selection Slave 4 Continue to hold the w key until the display indicates the current linked separate selection Linked Separate 5 Use the A and w keys to change the selection 6 To exit this mode press and hold both the A and v keys simultaneously Alternatively if no keys are pressed for a period of 5 seconds normal depth display will commence ey 17 Press simultaneously Note This setup procedure applies to the master device and all slave devices For separate operation all devices including the master must be set to Separate mode Also for linked operation all devices including the master must be set to Linked mode DS41 Owner s Manual Appendix B NMEA Repeater Mode The DS41 can be configured to operate as a To set the DS41 to repeater mode NMEA repeater In this mode it will display depth 1 Connect the NMEA data and DC power as information from any depth sounder outputing shown in the following diagram DPT or DBT NMEA depth data no other NMEA gt Apply power to the instrument and depth sentences are supported configure it for slave operation as Notes described in the Instrument Setup section Dual Station Operation 1 The only information d
14. isplayed from the DPT and DBT sentence is depth below the transducer The user must enter keel offset values and alarm settings as required 2 When a slave has no depth information the display will alternate between and SL This will occur if the master unit has no depth reading or if the data link from the master is inadvertently broken STANDARD DS41 Operating 12 VDC as NMEA repeater T 1A Fuse A ON OFF Optional External D C Buzzer Switch 12V 100 mA maximum l l l Note Transducer not connected Orange SoS e i em I e Ground pen one Brown NMEA data input NMEA A Output B 0 l Ground Depth Sounder with NMEA DPT output 141 Owner s Manual
15. lose to the keel to ensure that the transducer is in contact with water at higher boat speeds If the vessel is capable of speeds greater than 25 knots you may wish to review installation location and operational results on similar boats before proceeding See Figure 5 Recommended Area SAILBOAT Recommended Area AN KEEL SOS i Recommended Area FULL KEEL Recommended Area 10 s and OUIBOARDS ES 2 Recommended Area INBOARD PLANING HULLS a Recommended Area INBOARD DISPLACEMENT HULLS Figure 4 Sailboat Transducer Figure 5 Powerboat Transducer men Cov Na ES 2 50mm minimum Figure 6 Transom Mount Transducer Location 1541 Owner s Manual Transom Installation On transom installation mount your transducer as close to the centerline keel of the boat as possible On slower heavier displacement boats positioning the transducer farther from the keel is acceptable On two drive installations install the transducer between drives On single drive installations mount the transducer on the side of the boat where the propeller blade is rotating down to minimize cavitation If feasible mount the transducer at least 2 inches 50 mm beyond the swing radius of the propeller See figure 6 Note Do not mount transducer directly behind any strakes ribs int
16. ltiple coats of paint Erratic readings while moving Cavitation air under the face of the transducer Review installation and reinstall if necessary Erratic readings only while engine is running 1 Re route power and transducer cables away from engine ignition wires and battery cables 2 Add feed through filter capacitor on the positive terminal of the ignition coil Add an alternator whine filter to alternator 4 Replace spark plug wire with resistive type o BS41 Owner s Manual What comes with your Digital Depth Sounder Standard Mounting Bracket ceeeesceeseeeeeeneeeeeeneeeeeneeeseneeeeenneereaes With mounting hardware Extension Power Cord sesse 6 feet long with quick disconnect connectors Twistlock Face Plate iii tia aio sal Round Options EE 2 94 2 12 THDS IN 4 35 IN 110 MM A 2 94 o DTS50 DTS51 Plastic Low Profile Transducer Transom Mount Transducer DTS52 Bronze Long Stem Thru hull Transducer DS41 Owner s Manual 2 12 THDS IN N gt 2 75 gt 3 12 3 32 2 125 ES a DTS53 DTS55 Bronze Low Profile Transducer In Hull Transducer Note All transducers come with 30 feet of cable Replacement Parts The following parts may be ordered from the Parts Department To order call Toll free Number 1 800 487 2788 Square Face Plate ecceseeeseeceeeeeseeteeeeeseeeeaeessa
17. sh with the outside mounting wall Slide the bracket over the body of the instrument Note Orient the bracket in such a manner that it does not cover the buzzer minimising the length of cable where 5 Tighten the mounting nut until the bracket practical is secure 2 5 2 5 2 5 ROUND FACE PLATE N 2 75 sia INTERCHANGEABLE FACE PLATES SQUARE FACE PLATE 3 75 Figure 1 Depth Sounder Dimensions DS41 Owner s Manu Connect the power cord at the back of the instrument to a 12 V power supply which is active whenever the ignition switch is on The red lead should be connected to the positive terminal of the power supply via a 1 amp fuse or a 1 amp circuit breaker The black lead should be connected to the negative terminal Obtain the power from a 12 V source as directly as possible Avoid power circuits which share loads with ignition alternators radio transmitters etc Excessive electrical noise associated with such devices may prevent the instrument from operating properly Connect the RCA phono plug on the transducer cable to the instrument Instrument So Panel Instrument Sealing Gasket Mounting Bracket Figure 2 Depth Sounder Installation FACE PLATE INSTRUMENT R PANEL WALL DEPTH SOUNDER BODY MOUNTING NUT MOUNTING BRACKET Figure 3 Side View of Mounted Dep
18. th Sounder 141 Owner s Manual Transducer Installation Note The installation of a transducer is a job for a professional boat yard that performs numerous installations The following is an informational guide line on the installation of transducers General Correct installation of the transducer is essential for optimum operation of the instrument Select a location for the transducer using the following guidelines Non aerated water bubble free water must flow across the face of the transducer at all speeds if good depth performance is to be achieved Never position the transducer directly behind shafts struts fittings and paddlewheel speed transducers because water turbulence underneath the transducer face can adversely affect depth performance Keep the transducer cable away from the engine to reduce electrical interference If the boat has bottom paint applied and has been used inspect for areas where paint erosion has taken place Erosion is caused by turbulent water and these areas are unsuitable transducer mounting locations It is very important that the mounting location have reasonable access from inside the vessel since the transducer will require tightening from inside the hull e Plastic thru hull transducers should be mounted in fiberglass and metal hulls only Under no circumstances should they be used in wood hulls Swelling of the wood may overstress the plastic housing
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