Raymarine ST40 User Manual

Distributed by

Any reference to Raytheon or

RTN in this manual should be

interpreted as Raymarine.

The names Raytheon and RTN

are owned by the

Raytheon Company.

ST40 Depth
Instrument

Owner’s
Handbook

Document number: 81158_2
Date: 1st May 2001

Copyright © Raymarine Limited 2001

Preface

Important information

WARNING

Although your ST40 instrument is designed to give accurate and
reliable performance, it should serve only as an aid to navigation
and should never lead to the erosion of good seamanship. Always
maintain a permanent watch and be aware of situations as they
develop.

EMC conformance

All Raymarine equipment and accessories are designed to the best
industry standards for use in the leisure marine environment.

The design and manufacture of Raymarine equipment and accessories
conform to the appropriate Electromagnetic Compatibility (EMC)
standards, but correct installation is required to ensure that performance
is not compromised.

Handbook information

To the best of our knowledge, the information in this handbook was
correct when it went to press. However, the Raymarine policy of
continuous product improvement may change product specifications
without notice. Consequently, unavoidable differences may occur
between the product and the handbook from time to time, for which
Raymarine cannot accept liability.

i

ii ST40 Depth Instrument Owner’s Handbook

Preface

Contents

iii

Important information .......................................................... i

WARNING......................................................................... i

EMC conformance ............................................................. i

Handbook information ....................................................... i

Preface.....................................................................................v

Parts supplied ................................................................... vi

Chapter 1: Operation .............................................................1

1.1 Operating procedures .................................................. 1

Silencing alarms .......................................................... 1

Adjusting display backlighting and contrast ............... 4

1.2 Alarms ......................................................................... 5

Alarm indications ........................................................ 5

Shallow alarm ........................................................ 5

Deep alarm ............................................................. 5

Anchor alarms ........................................................ 5

Enabling/disabling alarms ........................................... 6

Chapter 2: Maintenance and Fault Finding ........................ 7

2.1 Maintenance ................................................................ 7

Servicing and safety .................................................... 7

Instrument .................................................................... 8

Transducer ................................................................... 8

Cabling ........................................................................ 8

2.2 Fault finding ................................................................ 8

Preliminary procedures ............................................... 8

Fixing faults ................................................................. 8

Assistance .................................................................. 10

iv ST40 Depth Instrument Owner’s Handbook

Chapter 3: Installation......................................................... 11

3.1 Planning your installation ......................................... 11

EMC installation guidelines ...................................... 11

Suppression Ferrites ........................................... 12

Connections to Other Equipment ......................... 12

Tools required ........................................................... 12

Site requirements ....................................................... 13

Transducer ........................................................... 13

Instrument ............................................................ 15

3.2 Procedures................................................................. 16

Fitting transducer ....................................................... 16

Running transducer cable .................................... 16

Connections to the instrument ................................... 17

SeaTalk connections ............................................ 18

Fitting the instrument................................................. 19

Desktop Mounting Bracket .................................. 21

3.3 Calibration requirement ............................................ 22

Chapter 4: Calibration ......................................................... 23

4.1 Introduction ............................................................... 23

EMC conformance .................................................... 23

4.2 User calibration ......................................................... 23

Depth offsets ............................................................. 24

4.3 Intermediate calibration ............................................ 26

4.4 Dealer calibration ...................................................... 26

Instrument Specification .................................................... 29

Glossary ................................................................................. 31

Index ...................................................................................... 33

Preface

Preface

v

Thank you for purchasing a Raymarine product. We are sure your
ST40 instrument will give you many years of trouble-free operation.

This instrument is designed to provide reliable performance, even
under the most demanding conditions.

D4637-2

vi ST40 Depth Instrument Owner’s Handbook

Parts supplied

ST40

ST40 Depth instrument

Gasket

Clamping bracket

ST40
Depth
Instrument

Owner's
Handbook

Owner’s Handbook.

Warranty document and fitting

templates included in Handbook

DEPTH

Worldwide
Distributors

Worldwide Service Centre

Handbook.

Instrument Cover

1 m (3 ft) power cable

Fixing

Thumb

stud

nut

Depth transducer
Supplied with bung
(not illustrated)

ST40 Depth Instrument - quick reference guide

Normal operation

SWITCH ON

Depth

Minimum

depth

Alarm on/off

3 seconds

Shallow

alarm

Alarm on/off

3 seconds

Deep
alarm

Shallow
anchor

alarm

Deep

anchor

alarm

Offset

To enter adjust mode, press for 1 second to adjust BACKLIGHTING and a further 1 second to adjust CONTRAST

Alarm on/off

3 seconds

Alarm on/off

3 seconds

Adjusting display backlighting/contrast

LEVEL 1

OFF LEVEL 2LEVEL 3LEVEL 2

Set

alarm

level

orTo exit adjust mode press or wait for 5 second timeout

+

With Set alarm level screen displayed,

and keys simultaneously

to save the alarm level and return to

-

Notes:

denotes temporary screens which will
*
time-out to the previous permanent

screen after 5 seconds.

On repeater instruments, only the
Depth and Minimum depth
screens are available.

press the

normal operation.

Quick Reference Guide

LEVEL 1

Note:
The items shown here are supplied for an ST40 Depth system. If an instrument is purchased separately, a transducer
is not included. If any item is not present, contact your Raymarine Dealer.

D4665-2

Chapter 1: Operation

Chapter 1: Operation

Your ST40 Depth instrument:

• Provides depth information, in either feet (FT), metres (M) or
fathoms (FA), as set during User calibration (see Chapter 4,
Calibration).

• Records the minimum depth encountered during the period it is
switched on. You can reset this at any time.

• Enables you to define alarm thresholds for shallow water, deep
water, shallow anchor and deep anchor.

• Enables you to see what offset is applied to the depth reading.

CAUTION

Your instrument is calibrated to factory (default) settings when
first supplied and must therefore be calibrated before use, to
ensure optimum performance on your vessel. Do NOT use the
instrument until the calibration procedures have been
satisfactorily completed, using the procedures in Chapter 4,
Calibration.

Coloured bezel and Desktop Mounting Bracket options are available
for your ST40 instrument. Contact your Raymarine dealer for further
information.

1

1.1 Operating procedures

Operating information is presented in flow chart form. The flow charts
show the various operating screens and key presses necessary to carry
out the various instrument functions. Key presses are momentary unless
otherwise stated.

Note that:

• Up/down depth-trend arrows are displayed, if the seabed is rising or
falling at a significant rate.

• The minimum depth reading is reset to zero at power up.

Silencing alarms

To silence an alarm (see the Alarms section, later in this chapter),
momentarily press any one of the instrument keys.

2 ST40 Depth Instrument Owner’s Handbook

NORMAL OPERATION (sheet 1)

Switch on

Depth

To/from the Offset
screen (sheet 2)

Minimum
depth

Shallow
alarm

To reset

3 seconds

Alarm
on/off

3 seconds

Notes:
Screens other than the Depth screen, are
temporary and will time-out to the Depth
screen after 5 seconds.

This diagram shows the operating sequence for
an ST40 Depth master instrument. On a repeater
instrument, only the Depth and Minimum
depth screens are available.

With any set alarm screen displayed, press the

and keys simultaneously

to save the alarm level and return to
normal operation.

Set Shallow alarm
threshold

Increase

If the Shallow alarm has been locked during User calibration,
you cannot switch it on or off or change the threshold value.

Deep
alarm

3 seconds

To/from Shallow anchor alarm screen

(sheet 2)

Alarm
on/off

+

Momentary

+

Momentary

Set Deep alarm
threshold

Decrease

Increase

Decrease

D4658-2

Chapter 1: Operation

To/from Deep alarm screen

(sheet 1)

3

NORMAL OPERATION (sheet 2)

Shallow anchor
alarm

Deep anchor
alarm

Offset

ST40 DEPTH

ST40 DEPTH

ST40 DEPTH

Alarm
on/off

3 seconds

Alarm
on/off

3 seconds

+

Momentary

+

Momentary

Set Shallow anchor
alarm threshold

Set Deep anchor
alarm threshold

Increase

ST40 DEPTH

Decrease

Increase

ST40 DEPTH

Decrease

To/from Depth screen

(sheet 1)

(+ve values)

(offset = 0.0)

(-ve values)

Note: Screens other than the Depth screen, are temporary
and will time-out to the Depth screen after 5 seconds.

D4659-2

4 ST40 Depth Instrument Owner’s Handbook

Adjusting display backlighting and contrast

Hold down for 1 second to enter Adjust Backlight mode

for 2 seconds to move through Adjust Backlight mode and enter Adjust Contrast mode

ADJUST BACKLIGHTING

to adjust contrast,

press

for 1 second

During normal operation, press

The current backlighting level is displayed.

Select the required backlighting level then:

for 1 second

to return to normal operation,

press

or wait for 5 second timeout

or

Normal operation

ADJUST CONTRAST

During normal operation, press

via Adjust Backlighting

The current contrast level is displayed.

Select the required contrast level then

or wait for 5 second timeout

Normal operation

for 2 seconds

orpress

D4845-1

Chapter 1: Operation

1.2 Alarms

Alarm indications

Shallow alarm

Depth is equal to or less than the shallow alarm threshold.

Alarm continues until cancelled manually.

Deep alarm

5

D4786-2

Triggered by depths equal to the deep alarm threshold. Continues until cancelled manually.

Anchor alarms

Depth is either:

equal to or less than the shallow anchor alarm threshold

or

equal to or more than the deep anchor alarm threshold

D4787-2

D4788-2

6 ST40 Depth Instrument Owner’s Handbook

Enabling/disabling alarms

You can enable or disable any alarm function (i.e. switch it on or off )
by selecting the relevant alarm screen (see Normal operation) and
holding down the key for 3 seconds (toggle action).