Raymarine ST60 Manual

Introduction

We are sure your ST60 instrument will give you many years of trouble-free operation.
This handbook describes how to install and use the Raymarine ST60 Speed instrument. This instrument provides accurate speed, log, trip and timer information, on a high quality Liquid Crystal Display (LCD). The instrument is constructed in a rugged weather-proofed case to provide reliable performance, even under the most demanding conditions.


Although the ST60 Speed 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.
Their design and manufacture conforms to the appropriate Electromagnetic Compatibility (EMC) standards, but correct installation is required to ensure that performance is not compromised.

Data inputs

The ST60 Speed instrument receives data either from an appropriate speed transducer and/or from a SeaTalk instrumentation system.

SeaTalk
SeaTalk enables a number of compatible instruments to operate as a single, integrated navigational system. Instruments in a SeaTalk system are linked by means of a single cable, which feeds both power and data. Instruments can therefore be added to the system by plugging them into the network. SeaTalk is flexible enough to adapt to any number of compatible instruments without requiring a central processor. SeaTalk can also communicate via an interface, with nonSeaTalk equipment using the internationally-accepted National Marine Electronics Association (NMEA) protocol.
In a SeaTalk system, each instrument can be either a master or dedicated repeater unit. A master instrument is directly connected to a transducer (the device that provides the raw data), and provides data and control for the service it is providing, to all other equipment on the SeaTalk network. A slave instrument is not directly connected to a transducer but repeats information provided by other equipment in the SeaTalk network.
The ST60 Speed instrument can fulfil both master and repeater roles.

Stand alone operation
In Stand alone operation, the ST60 Speed instrument is connected only to the relevant transducer and does not display information from, or provide information to, any other instruments.

Remote control

When connected to SeaTalk, the ST60 Speed instrument can be controlled remotely by a SeaTalk Remote Keypad Unit, to provide instant remote access to the various display readouts.

Mounting options

If you do not want to surface mount your ST60 instrument, options are available for:

• Flush mounting. If you have ordered the flush mounting option a low-profile bezel and four fixing screws are also provided.
• Bracket mounting.

Parts supplied

Unpack your ST60 instrument and check that the following items are present:

• Item 1, ST60 Speed instrument fitted with standard bezel for surface mounting.
• Item 2, Fixing studs (2).
• Item 3, Thumb nuts (2).
• Item 4, Gasket.
• Item 5, Speed transducer, plus bung (not illustrated).
• Item 6, SeaTalk interconnection cable.
• Item 7, Power cable.
• Item 8, Instrument Cover.
• Item 9, Owner's Handbook. A Warranty document and fitting templates are included in this Handbook.
• Item 10, Worldwide Service Centre Handbook.
• Item 11, Cue Card.
  Spare spade terminals are also provided, to re-terminate the transducer cable if it has to be cut to facilitate installation.
  Note: The above packing list is for an ST60 Speed system. Where an instrument is purchased separately, a transducer is not included.

Operation

Getting started

Displayed information
Your ST60 Speed instrument provides the following:

• Speed information.
• Log, trip and water temperature information.
• Count-up and race-start timers.

Calibration requirement
The ST60 Speed instrument is calibrated to factory (default) settings when first installed and must therefore be calibrated before use, in accordance with the procedures in Calibration, to ensure optimum performance on your vessel.
Do NOT use the instrument until the calibration procedures have been satisfactorily completed.

Normal operation

Use the flow charts in this Chapter to operate your ST60 Speed instrument. The flow charts show the sequence of key presses and displays for the various operating tasks. All key presses are momentary unless otherwise stated.

Speed information
The speed key gives access to current speed, maximum speed, average speed, velocity made good (VMG) and speed over ground (SOG) information. Refer to the Using speed key flow diagram to access the information you want.

Current speed
Speed measurement units can be either knots (KTS), miles per hour (MPH) or kilometres per hour (KMH). The required units are selected during user calibration ( Calibration).

Maximum speed
The maximum speed is reset at power up. It can also be reset manually by pressing the reset key for 3 seconds. The display shows the maximum recorded speed since the last reset. This screen times-out to current speed if no user action occurs for 7 seconds.

Average speed
The average speed is reset at power up. It can also be reset manually by pressing the reset key for 3 seconds. The display shows the average speed calculated since the last reset. This screen times-out to current speed if no user action occurs for 7 seconds.

Using the speed key

Velocity made good (to windward)
Velocity made good (VMG) information is available if your ST60 Speed instrument is part of a SeaTalk system to which a SeaTalkcompatible wind instrument is also connected.

Speed over ground
Speed over ground (SOG )information is available if your ST60 Speed instrument is part of a SeaTalk system to which a suitable GPS instrument is also connected.

Log, trip and water temperature
The trip key gives access to log, trip and water temperature information. Refer to the Using trip key flow diagram to access the information you want.

Using trip key

Log
The Log screen shows the total distance covered by the vessel since the ST60 Speed instrument was fitted.

Trip
The trip distance is reset at power up and may also be reset manually, by pressing the reset key for 3 seconds. The display shows the distance covered since the last reset.
Note: The trip distance can be reset only if the instrument is a master, i.e. connected to a speed transducer.

Water temperature
The water temperature is shown in either degrees Celsius or Fahrenheit, as set during calibration (Calibration).

Timers
The timer key gives access to a count-up timer and to 5-minute and 10-minute race-start timers. Times are either in seconds (S) or minutes (M), depending on the counter values.
Refer to the Using timer key flow diagram to display the required timer. Once you have selected the required timer display, press the reset key to start the timer running. When a timer is running, the delimiter (i.e. '.'or ':') flashes. For lap timing, press the reset key momentarily. To stop and reset a timer to the start value, press the reset key for 1 second.
Once a timer is running, you can leave the timer page and select any other display. The counter will continue to run in the background.

Race-start timers
If you are using one of the race-start timers and the timer buzzer is enabled, the buzzer will:

• Double-beep every minute.
• Beep three times at the start of the last 30 seconds.
• Beep once for each of the last 10 seconds.
• Beep for 2 seconds at zero.
  The timer buzzer is enabled or disabled as part of the calibration procedure ( Calibration).
  Note: After a race-start timer has counted-down to zero, it will then start counting up.
  
  Using timer key

Display settings

Illumination
When the instrument is first powered up, the display illumination is set to its lowest (courtesy) level to facilitate initial access to the keys. To adjust the level of illumination:

1. Hold down the speedkey for approximately one second, to enter the illumination-adjust mode.
2. There are four preset illumination levels. Momentarily press thespeed key to cycle through the these levels until you reach the level you want.
3. Press any other key to leave the illumination-adjust mode.
   Note: The display will time out to normal operation 7 seconds after the last key press.

Contrast
To adjust the display contrast:

1. Hold down thespeed key for approximately two seconds, to enter the contrast-adjust mode.
2. There are four preset contrast settings. Momentarily press thespeed key to cycle through the these settings until you achieve optimum display quality.
3. Press any other key to leave the contrast-adjust mode.
   Note: The display will time out to normal operation 7 seconds after the last key press.

Pop-up Pilot

A Pop-up Pilot facility enables instruments connected to SeaTalk to constantly monitor any changes to the autopilot mode and to the course settings. If one of these parameters changes, the new value is immediately displayed on the ST60 instrument for 5 seconds, after which time the display reverts to the previous display.
This facility can be enabled or disabled during User calibration (Calibration).

Remote control

When it is connected to SeaTalk, the ST60 Speed instrument can be controlled remotely with a SeaTalk Remote Keypad Unit. Remote control of an instrument is indicated by a REMOTE legend on the display, to indicate that the keypad has control.
Details on how to use the remote control facility can be found in the SeaTalk Remote Keypad Owner's Handbook.

Maintenance and Fault Finding

Maintenance

Servicing and safety

• Raymarine equipment should be serviced only by authorised Raymarine service engineers. There are no user-serviceable parts in any Raymarine product.
• Some products generate high voltages, and so never handle the cables/connectors when power is being applied to the equipment.
• Always report any EMC related problem to your nearest Raymarine dealer. We will use any such information to improve our quality standards.
  When requesting service, please quote equipment Type, Model Number and, if possible, Software Release Issue. The Software Release Issue can be ascertained by means of the Intermediate Calibration facility, Calibration.

Instrument
Certain atmospheric conditions may cause condensation to form on the instrument window. This will not harm the instrument and can be cleared by increasing the illumination setting to Level 3.
Periodically clean your ST60 instrument with a soft damp cloth. Do NOT use chemical and abrasive materials to clean the instrument.

Transducer
Refer to the Installation and Maintenance instructions supplied with the transducer.

Cabling
Examine all cables for chafing or other damage to the outer shield and, where necessary, replace and re-secure.

Fault finding

Preliminary procedures
Changes in the electronic environment may adversely affect the operation of your ST60 equipment. Typical examples of such changes are:

• Electrical equipment has recently been installed or moved aboard your vessel.
• You are in the vicinity of another vessel or shore station emitting radio signals.
  If you appear to have a problem, first ensure that the EMC requirements are still being met before further investigating the problem.

Fixing faults
All Raymarine products are subjected to comprehensive test and quality assurance programmes prior to packing and shipping.
However, if a fault occurs, the following table may help to identify and rectify the problem.

If you need to remove the transducer insert, have the transducer bung to hand and secure it in the transducer body immediately after the insert has been removed, to prevent excessive ingress of water.
If you are unable to rectify a problem, contact the Raymarine Product Support Department or your own National Distributor, for assistance.

Installation

This chapter describes how to install the ST60 Speed instrument, and associated speed transducer. The transducer is fitted in the hull of the vessel and is connected to the rear of the instrument. The actual type of transducer depends on the type of hull in which it is to be installed.
For advice, or further information regarding the installation of this equipment, please contact the Raymarine Product Support Department or your own National Distributor.

Planning your installation

Before starting the installation, spend some time considering the best positions for both transducer and instrument, such that the Site Requirements and the EMC Guidelines (below) are satisfied.

Site requirements
Transducer

Speed transducer dimensions
The transducer types required for the various hull types are as follows:

Other transducer types are also available for specific requirements. For further details, contact your local Raymarine dealer.
For accurate speed readings the transducer should be sited within the clear water flow areas indicated by the shaded areas in the following diagram.

Transducer siting

The transducer should also:

• Be ahead of the propellers (by a minimum of 10% of the water line length ).
• Be at least 150 mm (6 in) away from the keel (ideally ahead of the keel if a sailing yacht).
• Be as near as possible to the centre line of the vessel.
• Be clear of other through-hull fittings or projections.
• Have sufficient clearance inside the hull to fit the nut.
• Have 100 mm (4 in) of headroom to allow for withdrawal.
  There must also be a viable route for the transducer cable to be routed to the instrument.

Instrument

Instrument dimensions

The presence of moisture at the rear of the instrument could cause damage either by entering the instrument through the breathing hole or by coming into contact with the electrical connectors.
ST60 instruments can be fitted either above or below deck, provided the rear of the instrument is sited where it is protected from contact with water.

Each instrument must also be positioned where:

• It is easily read by the helmsman
• It is protected against physical damage
• It is at least 230 mm (9 in) from a compass
• It is at least 500 mm (20 in) from radio receiving equipment
• There is reasonable rear access for installation and servicing

EMC guidelines
All Raymarine equipment and accessories are designed to the best industry standards for use in the leisure marine environment.
Their design and manufacture conforms to the appropriate Electromagnetic Compatibility (EMC) standards, but correct installation is required to ensure that EMC performance is not compromised. Although every effort has been taken to ensure that they will perform under all conditions, it is important to understand what factors could affect the operation of this product.
To minimise the risk of operating problems:

• All Raymarine equipment and cables connected to it should be:
  • At least 1 m (3 ft) from any equipment transmitting or cables carrying radio signals, e.g. VHF radios, cables and antennas. In the case of SSB radios, the distance should be increased to 2 m (7 ft).
  • More than 2 m (6 ft) from the path of a radar beam. A radar beam can normally be assumed to spread 20 degrees above and below the radiating element.
• The equipment should be supplied from a different battery than the one used for engine start. Voltage drops below 10 V in the power supply to our products can cause the equipment to reset. This will not damage the equipment, but will cause the loss of some information and can change the operating mode.
• Raymarine specified cables should be used at all times. Cutting and rejoining these cables can compromise EMC performance and so must be avoided unless doing so is detailed in the installation manual.
• If a suppression ferrite is attached to a cable, this ferrite should not be removed. If the ferrite has to be removed during installation it must be reassembled in the same position.

Suppression ferrites
The following illustration shows the typical range of suppression ferrites fitted to Raymarine equipment. Always use the ferrites specified by Raymarine.

Connections to Other Equipment
If your Raymarine equipment is going to be connected to other equipment using a cable not supplied by Raymarine, a suppression ferrite MUST always be fitted to the cable close to the Raymarine unit.

Procedures

As it is not possible to describe procedures for all possible installation scenarios, the procedures given here describe the broad requirements for installing Speed transducers and the ST60 Speed instrument. Adapt these procedures as appropriate, to suit your individual requirement.

Where it is necessary to cut holes (e.g. for cable routing and instrument mounting), ensure that these will not cause a hazard by weakening critical parts of the vessel's structure.

Unpacking
Unpack your ST60 equipment and check that the items described in Introduction are present.
Each ST60 instrument is supplied with a standard bezel for surface mounting. Optional mounting kits are available for flush mounting and bracket mounting the instrument. If you have ordered the flush mounting option a low-profile bezel and four fixing screws are also provided.

Fitting the instrument
The ST60 Speed instrument can be installed using one of a number of different mounting options:

• Surface mounting. Gives a profile of approximately 24 mm.
• Flush mounting. Gives a profile of approximately 6 mm.
• Bracket mounting.

The ST60 instruments can also be mounted behind a panel with just the instrument dial and keys visible.

Surface mounting
To surface mount your ST60 instrument (see the Surface mounting illustration):

1. Ensure that:
   • The selected location is clean, smooth and flat.
   • There is sufficient space behind the selected location to accommodate the rear of the instrument and connectors.
     
     Surface mounting
2. Apply the surface mount template (supplied at the rear of this handbook) to the selected location and mark the centres for the fixing studs (1) and the aperture (3) that will take the rear casing of the instrument.
3. Drill out the two 5 mm fixing stud clearance holes (2).
4. Cut out the clearance hole (3) then remove the template.
5. Peel off the protective sheet from the self-adhesive gasket (4) then stick the gasket into position on the rear of the instrument.
6. Screw the two fixing studs into the threaded sockets on the rear of the instrument.
7. Mount the assembled instrument, studs, bezel and gasket into the panel. Secure from behind with the thumb nuts (5).

Flush mounting
The Flush Mounting Kit uses a low-profile bezel to reduce the fitted profile of the instrument, to approximately 6 mm above the panel fascia.

Fitting the low-profile bezel
In order to flush-mount your ST60 instrument, you must first replace the standard bezel with the low-profile bezel as follows:

1. Hold the instrument in both hands with the display towards you.
   
2. Using both thumbs, gently press an upper corner of the instrument from the bezel, then remove the bezel from the instrument. Retain the rubber keypad which is released when the bezel is removed.
3. Referring to theFitting the low-profile bezel illustration, place the instrument face upwards on a flat surface and place the rubber keypad (7) in position around the display window (i.e. so that each key outline is located over its associated key on the instrument).
4. Snap the low-profile bezel (8) in position over the instrument, so that the rubber keys are correctly located in the holes on the bezel.
   
   Fitting the low-profile bezel
   
   It is essential that only screws of the correct size are used to secure the instrument to the bezel. Failure to observe this caution could result in damage to both the instrument and the bezel.
5. Using the four, self-tapping screws (9) provided, secure the instrument and bezel together. Fit the screws from the rear of the instrument and tighten them sufficiently to secure the instrument and bezel together. DO NOT OVERTIGHTEN.

Flush mounting procedure
Flush mount your instrument (see the Flush mounting illustration) as follows:

1. Assemble the ST60 instrument and low-profile bezel as described underFitting the low-profile bezel.
2. Ensure that:
   • The panel on which you intend to mount the instrument is between 3 mm and 20 mm thickness.
   • The selected location is clean, smooth and flat.
   • There is sufficient space behind the selected location to accommodate the rear of the instrument and connectors.
3. Apply the flush mount template (supplied at the rear of this handbook) to the selected location and mark out the aperture into which the assembled instrument and bezel will sit.
4. Cut out the aperture (3) for the assembled instrument and bezel and remove the template.
5. Peel off the protective sheet from the self-adhesive gasket (4) then stick the gasket into position on the rear of the bezel.
   
   Flush mounting

6. Screw the two fixing studs (1) into the threaded sockets on the rear of the instrument.
7. Mount the assembled instrument, studs, bezel and gasket into the panel.
8. Locate the flush mount bracket (6) onto the fixing studs and secure the assembly to the panel with the thumb-nuts (5).

Bracket mounting
A Control Unit Mounting Bracket (Part No. E25009) enables you to mount your ST60 instrument in locations where other forms of mounting are impractical. Although this provides a useful alternative method for securing your instrument, it is only suitable for use in positions where the instrument will not be exposed to water.
To bracket mount your ST60 instrument, do so in accordance with the Control Unit Mounting Bracket Instruction Sheet.

Fitting transducer
The ST60 Speed instrument is supplied, with a through-hull Speed transducer.
The Speed transducer is supplied with detailed instructions for installation and maintenance. Before attempting to install the Speed transducer, read these instructions and the Site requirements for transducers described in this Chapter.
Once you are satisfied you can meet all the installation requirements, install the transducer in accordance with the accompanying installation instructions.

Running transducer cable
Each transducer type has a 14 m (45 ft) cable fitted with spade terminals for connection to the ST60 Speed instrument. The manner in which you run the cable will depend on the locations of the transducer and instrument.
The following guidelines are provided:

• If the cable has to be fed through the deck, always use a proprietary deck gland.
• Where cables are fed through holes, always use grommets to prevent chafing.
• Secure long cable runs so they do not present a hazard.
• Do not route the cable through bilges.
• Wherever possible, route the cable away from fluorescent lights, engines, radio transmitting equipment, as these may cause interference.
• The transducer cable is fitted with spade connectors for direct connection to the rear of the instrument. However, it may be necessary to remove these to facilitate installation, e.g. if the cable has to be routed through narrow apertures. Extra spade connectors are provided, to replace any that are removed when running the cable. In order to ensure a secure connection when fitting spade connectors, fold back the wire strands as shown in the following illustration, before inserting the wire in the spade connector. Ensure the wire strands do not extend beyond the rear of the spade connector insulation.
  
  Preparing wire for connection
  Observing the above guidelines, run the transducer cable to the ST60 Speed instrument.

Connecting the instrument
Types of connection
The ST60 Speed instrument, can be connected:

• As a stand-alone, master instrument connected directly to the Speed transducer.
• As a SeaTalk repeater.
• To fulfil both repeater and master roles by being connected both to the transducer and to SeaTalk.

If instruments are connected to SeaTalk, no separate power connection is necessary. Where a SeaTalk system includes an autopilot, the power for the system is provided by the autopilot.
A range of Raymarine SeaTalk extension cables is available to connect separated instruments. These cables are supplied with a SeaTalk connector fitted to each end. A junction box can be used to join cables.

Signal connections
Make the necessary connections to your ST60 instrument (see the Connection to ST60 Speed instrument illustration).

Connections to ST60 Speed instrument

Power supply connections
SeaTalk systems

When instruments are connected to SeaTalk, ensure that the power supply for the SeaTalk 12 V line is protected by a 5 A fuse.
Systems with a large number of instruments on the SeaTalk bus may require connections to the power supply from each end of the system ('ring-main' style), to maintain sufficient voltage throughout the system.
This requirement depends on the total length of the cable run and the total number of instruments in the system, as follows:

SeaTalk power connections

Stand alone instruments
Stand-alone instruments are not connected to SeaTalk and therefore need to be connected to an alternative 12 V power source. Power cables are available in 2 m and 9 m lengths.
To fit a power cable:

1. Run the cable from the instrument to a suitable 12 V dc power source.
2. If the cable has not already been trimmed at the power supply end:
   1. Cut the cable to length and trim back an appropriate amount of the outer sheath.
   2. Cut back and insulate the yellow wire.
3. Connect the screen to the power supply 0 V terminal.
4. Connect the red wire via a 3 A over-current circuit breaker to the power supply +12 V terminal.
   
   Power connections for stand-alone instrument

Calibration

Introduction

The ST60 Speed instrument is set up with factory-programmed default settings, so in order to optimise the performance of the instrument on board a particular vessel, the procedures in this Chapter must be carried out immediately after the completion of installation, and before the equipment is used for navigational purposes.
Where practicable, the calibration procedures are presented diagrammatically to show the sequence of key presses and the resulting displays. Adjustment instructions are given as applicable.

EMC conformance

• Always check the installation before going to sea to make sure that it is not affected by radio transmissions, engine starting etc.
• In some installations, it may not be possible to prevent the equipment from being affected by external influences. Although this will not damage the equipment, it can lead to spurious resetting action, or momentarily may result in faulty operation.

Speed readings
One of the most important reasons for calibrating the ST60 Speed instrument is to ensure that speed readings displayed on the instrument are a true reflection of the actual speed of the vessel.
In User calibration, you can:

• Automatically set the displayed speed reading to be the same as the Speed Over Ground (SOG) (if SOG data is available).
• Manually apply a calibration factor, to set the displayed speed to the required value.

If neither of the above methods are suitable, you can carry out a speed calibration run over a measured distance, to enable the instrument to calculate the correct calibration factor. This is described as part of Intermediate calibration.

User calibration

The User calibration procedures enable you to:

• Set the required units for speed readings.
• Set the required Log units.
• Set the speed resolution.
• Manually apply a calibration factor or auto-adjust to Speed Over Ground (SOG), to obtain correct speed through the water.
• Select temperature units.
• Calibrate for correct temperature readings.
• Set timer buzzer on or off.
• Set pop-up pilot display on or off.

Procedure
To carry out a User calibration:

1. Power up the ST60 Speed instrument.
2. Press the speed and trip keys for approximately 2 seconds so that the User calibration entry screen is displayed.
3. Referring to theUser calibration diagram, carry out the calibration procedure. Use the speed key to cycle from screen to screen and the timer and reset keys to set the required values (except Adjust to SOG display).

Set speed units
Select either KTS (knots), MPH (miles per hour) or KMH (kilometres per hour), as required.

Set resolution
Select resolution of either 0.01 or 0.1 as required.

Set log units
Select either NM (nautical miles), SM (statute miles) or KM (kilometres), as required.

Setting the correct speed
Set the displayed (current) speed using one of the following methods:

• Use the Adjust to SOG screen to automatically set the current speed to SOG (if available from SeaTalk). You must be running in slack tide conditions to successfully use this method.
• Manually apply a calibration factor by means of the Cal factor adjust screen, to set the displayed speed value to your best estimate of the vessel's speed.

Adjust to SOG
The Adjust to SOG screen is displayed only if SOG data is available from SeaTalk. The current SOG is displayed in the top right of the display (12.8 in the illustration), and the current speed registered by the instrument is shown as large figures (12.4 in the illustration).
It is recommended that, if you are running in slack tide conditions, you press the reset key for 3 seconds, to accept the SOG as the current speed. The calibration factor is automatically re-calculated.
If you do not wish to accept SOG as the current speed, press the timer and reset keys together to select the Cal factor adjust screen.

Cal factor adjust
The Cal factor adjust screen enables you to manually adjust the calibration factor. It shows the current calibration factor in the top right of the display, and the current speed as large figures (12.4 in the illustration).
Use the timer or reset key to adjust the calibration factor so that the current speed is the speed through the water.
If SOG data is available from SeaTalk, you can turn to the Adjust to SOG screen by pressing the timer and reset keys.
Note: If neither of the above methods gives satisfactory results, carry out the Speed calibration procedure (part of Intermediate calibration).

Set temperature units
Select either °C or °F, as required.

Temperature calibration
Set the display to show the current water temperature.

Timer buzzer
Switches the count-up and race-start timer buzzers on and off.

User calibration - sheet 1

User calibration - sheet 2

Pop-up pilot
Switches the pop-up pilot function on and off.

Leaving User calibration
Hold down the speed and trip keys for 2 seconds to save your settings, exit User calibration and resume normal operation.

Intermediate calibration

Intermediate calibration

Intermediate calibration enables you to:

• Check the instrument software version.
• Check the instrument status - either MASTER (transducer connected) or REPEATER (no transducer).
• Carry out a calibration run over a measured distance to ensure accurate speed readings.

To start Intermediate calibration, hold down the speed and trip keys for approximately 4 seconds (see Intermediate calibration flow chart).

Speed calibration
The speed calibration procedure involves carrying out two runs over a measured distance, to enable a calibration factor to be determined and applied to your ST60 Speed instrument, to ensure optimum accuracy. Each calibration run comprises outward and return legs, to minimise the affect of tidal drift when the calibration factor is determined.
To carry out a speed calibration, start the Intermediate calibration procedure and use the speed key to proceed to the Calibration run length screen (see sheet 1 of the Speed calibration flow chart). Proceed with the speed calibration as follows:

1. With the Calibration Run Length screen displayed, press thetimer and reset keys together to enter adjust mode. In this mode, the displayed run length flashes on and off.
2. Set the length of the intended calibration run, using either thetimer key to decrement or the reset key to increment the run length value. You can set any value between 0.25 and 2.50.
3. Presstimer and reset keys together to commence the speed calibration. The Cal status screen is displayed. The text at the top of the screen alternates between START 1 and the calibration factor currently applied.
4. Start first outward leg of the calibration run and as you pass the start point, press thetrip key, so the screen shows OUTWARD at the top. As the calibration run proceeds, the displayed value will increment.
5. At the end of the outward leg, press thetrip key again so that:
   • The text RETURN is flashing at the top of the screen.
   • The displayed distance freezes. Note that this value will not be the same as the measured distance due to errors introduced by tidal flow.
6. Turn the vessel round, start the return leg and as you do so, press thetrip key so RETURN stops flashing and the displayed value increments.
   
   Speed calibration - sheet 1
   
   Speed calibration - sheet 2

7. At the end of the return leg, press thetrip key to end the calibration run. At this point:
   • The text START 2 alternating with the new calibration factor is displayed at the top of the screen.
   • The displayed distance freezes. This value should be very close to the actual (measured) distance of the calibration run.
8. Press thespeed and trip keys together, to store the new calibration factor.
9. Carry out a second calibration run (seesheet 2 of the Speed calibration flow chart), using the procedure described above in steps 4 to 8.
   Note: At the end of this second run, the text END alternating with the new calibration factor is displayed at the top of the screen.
10. Press thespeed key to leave speed calibration and return to the Instrument status screen.

Leaving Intermediate calibration
Hold down the speed and trip keys for 2 seconds to save your settings, exit Intermediate calibration and resume normal operation.

Dealer calibration

The Dealer calibration procedure (see Dealer calibration diagram) enables the following parameters to be set:

• User calibration on/off.
• Speed response.
• VMG response.
• Boat show mode on/off.

Dealer calibration also gives access to the Factory defaults screen. This enables you to re-apply the factory settings if you want to reset the instrument to a known operating condition.
To commence Dealer calibration, hold down the speed and trip keys together for approximately 12 seconds, to select the Dealer calibration entry page. Momentarily press the timer and reset keys together, to proceed with the calibration, then use the speed key to proceed from screen to screen as calibration progresses.

User calibration on/off
Press the timer or reset keys to toggle the User calibration either ON or OFF as required. With OFF selected, User calibration and Intermediate calibration are both disabled.

Dealer calibration

Response settings
The response values for both SPEED and VMG determine the frequency at which information is updated. A low number provides a smooth response and a high number a much livelier update.
Use the timer (decrement) and reset (increment) keys to set the required value. Response values are from 1 to 15.

Boat show mode

Do NOT enable this mode. It must only be used for demonstration purposes.
Ensure that the Boatshow Mode Use is set to OFF. If necessary, use the timer or reset key to achieve this.

Factory defaults
You can use this screen to reset the operating parameters to the factory default values. If you want to apply the factory defaults, ensure the display shows YES, but if you want to retain the current values, ensure that the display shows NO. Use the timer and reset keys to make the required selection.
The values you have selected will be applied when you exit this screen.

Leaving Dealer calibration
Hold down the speed and trip keys for 2 seconds to save your settings, exit Dealer calibration and resume normal operation.