Standard Horizon DS41BC Owner's Manual

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Standard 2 Inch Installation Dual Station Operation Reads in Feet Fathoms or Meters Adjustable Prop or Surface Offset Shallow and Deep alarms

D41BB & D41BC Digital Depth Sounder

Owner’s Manual

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MARINE PRODUCTS LIMITED WARRANTY

Standard Horizon, a division of Yaesu U.S.A. (Standard Horizon) warrants to the original consumer purchaser (the Purchaser) only that each new Marine Product will be free from defects in materials and workmanship under conditions of normal use and service for a period of one (1) year from the date of delivery to the Purchaser. Standard Horizon’s liability under this warranty shall be limited to repair or replacement of the defective product, at Standard Horizon’s option, and under no circumstances shall Standard Horizon be liable for consequential, incidental, or other damages arising out of or in any way connected with a failure of the product to perform as set forth herein.

THIS LIMITED WARRANTY EXTENDS ONL Y T O THE PURCHASER AND IS IN LIEU OF ALL OTHER EXPRESS OR IMPLIED WARRANTIES, INCLUDING THOSE OF MERCHANT ABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

In the event of a defect, malfunction, or failure of the product to conform to specifications during the oneyear warranty period, Standard Horizon will repair or replace, at its option and without charge to the Purchaser, the product which upon examination by Standard Horizon shall appear to be defective or not up to factory specifications. Standard Horizon will pay all labor charges incurred in providing such warranty service. T o obtain warranty service, the defective product must be returned to Standard Horizon together with proof of the date of purchase. The Purchaser must pay any transportation expenses in returning the product to Standard Horizon. Standard Horizon will examine the product and respond to the Purchaser in approximately four (4) weeks from date of receipt of the product claimed to be defective.

This limited warranty does not extend to any product which has been subjected to misuse, neglect, accident, improper installation, or subject to use in violation of the maintenance or operating instructions, if any, furnished by Standard Horizon; nor does this warranty extend to products on which the serial number has been removed, defaced, or changed. Standard Horizon reserves the right to make changes or improvements to its products during subsequent production without incurring the obligation to install such changes or improvements on previously manufactured or sold products.

Some states do not allow limitations on the duration of the warranty or exclusions or limitations of incidental or consequential damages so these limitations or exclusions may not apply to you. This warranty gives you specified legal rights which vary from state to state.

CUSTOMER RECORD

Purchase Date:

Purchased From

Model No

Serial No.

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Contents

Specifications ..........................................................................................4

Alarms ............................................................................................................ 5

Alarms On/Off................................................................................................. 5

Shallow Alarm ................................................................................................ 5

Operation ................................................................................................5

Deep Alarm .................................................................................................... 5

Keel/Surface Offset ........................................................................................ 6

Instrument Setup .....................................................................................6

Transducer Setting ......................................................................................... 6

Units of Measure ............................................................................................ 7

Troubleshooting.......................................................................................7

Maintenance............................................................................................7

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Specifications

• Size

Mount2" (51mm) diameter hole Depth behind face plate 3.75" (95mm) max. Display: 3-character LCD

• Color

Black or chrome bezel.

• Backlighting

Red colored diffused lighting for display.

• Water Integrity

Front will withstand direct water spray.

• Depth/Alarm Range

2.0!600 feet

0.6!184 meters

0.3!100 fathoms (to 9.9 in tenths)

• Sensitivity

Better than 0.05mV RMS at 200 feet.

• Transmit Power

36 W RMS nominal at 13.6 VDC.

• Transducer

200 kHz 1900 pF/600 W parallel.

• Display Updating

1 second.

• Operating Voltage

9.5 VDC to 16.5 VDC.

• Operating T emperature

0°C to 50°C (32°F to 122°F).

• 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

<6 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.

Display is backlit for Night Operation

Alarm On/ Change Value Up

888

Horizon Depth

OFFON

Alarm Off/

Change Value Down

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OFF

OFFON

OFF

OFFON

OFF

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. T o turn the alarm on, press the " (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.

To turn the alarms off, press the # (OFF) key. The arrow in the lower right corner will extinguish.

Note: The 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 " key for three seconds. The display will show:

Press for 3 Seconds

OFF

the current Shallow Alarm depth setting.

8851

3. Use the " 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 ^ and V keys simultaneously. Alternatively, if no keys are pressed for a period of 5 seconds the normal depth display will resume.

Press simultaneously to exit

Note: If the reading is decreased to below

1.5 feet (or equivalent) the display will

show

!""

and the alarm will be disabled. The alarm can also be disabled by pressing both the " and # keys for 5 seconds. The word will be displayed but the alarm depth will be retained for future use.

OFF

!""

Deep Alarm

To set the deep alarm:

1. Press the # key for three seconds. The

display will show:

OFF

dAL

2. After two seconds the display will indicate the

current Deep Alarm depth setting.

Press for

3 Seconds

8850

3. Use the " 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 " and # keys simultaneously.

SAL

2. After a few seconds the display will indicate

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OFF

4. When the alarm is set, exit by pressing both

OFF

the " and # keys simultaneously. Alternatively, if no keys are pressed for a period of 5 seconds the normal depth display will resume.

Press simultaneously to exit

OFF

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 " key.

2. When the unit is on, release the " key. The

3. After 5 seconds the display will indicate the

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 " and # keys to change the value. If

Hold down during power up

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)

current offset.

either key is held depressed for more than one second the reading will increase or decrease rapidly.

Note: If the reading is increased one step above 600 feet (or equivalent) the display will

!""

and the alarm will be disabled. The

show alarm can also be disabled by pressing both

the will be displayed but the alarm depth will be retained for future use.

5. The offset can be programmed in 0.1 unit

6. To display depth below the keel enter the

7. To display depth below surface enter the

8. To exit this mode, press and hold both the "

and

keys for 5 seconds. The word

steps from -9.9!9.9 feet (or equivalent). When programmed for a negative offset, ‘-’ will be indicated on the left hand side of the display.

vertical distance between the bottom of the keel and the depth trasnducer as a value.

vertical distance from the waterline to the depth transducer as a positive number (no negative sign).

and # keys simultaneously. Alternatively, if no keys are pressed for a period of 5 seconds normal depth display will resume.

The display will now indicate the current water depth.

Press simultaneously

OFF

!""

negative

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.

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Changing the Transducer Setting

OFFON

88Ft

88FA

OFF

1. Apply power while holding down the "ON key. The display will show either HOF or SOF for 7 seconds. Continue to hold the key down.

2. The display will show tdr.

tdr

3. Release the key.

4. After 2 seconds the display will show the Transducer Setting value eg 0.0

5. Use the " and # keys to change the value.

6. T o exit this mode, press and hold both the " and # keys simultaneously.

Units of Measure

To select the displayed unit

1. Apply power while holding down the # key.

OFF

Hold down during power up

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:

1. Check transducer for growth or multiple coats of paint.

2. When the unit is on, release the # key. The display will indicate the current display unit with:

8888

Feet Meters

3. Use the " and # keys to change the value.

4. To exit this mode, press and hold both the " and # keys simultaneously. Alternatively, if no keys are pressed for a period of 5 seconds normal depth display will resume.

The display will now indicate the current water depth in the selected display unit.

Fathoms

Press simultaneously

OFF

Erratic readings while moving:

1. 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.

3. Add an alternator whine filter to alternator.

4. Replace spark plug wire with resistive type.

Maintenance

Y our depth sounder is designed for years of trouble free operation assuming proper installation and care are provided. Following the operation and installation guidelines in this manual should ensure optimum performance of the instrument. In the unlikely event that the instrument shall fail to perform or shall need servicing, contact:-

Standard Horizon Factory Repair Facility 115 North W right Brothers Drive Salt Lake City, UT 84116

Telephone number (800) 366-4566 Fax number (801) 359-4122

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