NASA Marine CLIPPER User manual

REPEATERS
KTS
CLIPPER
ILLUM SCALE INC
DEC
40
40
60
20
60
20
20 20
DESIGNED AND
MANUFACTURED
IN ENGLAND

INTRODUCTION
INSTALLING THE REPEATER UNIT
NORMAL OPERATION - ALL UNITS
CHANGING THE BACKLIGHT SETTING
ENGINEERING - ALL UNITS
COMPASS REPEATER OPERATION
WIND SPEED AND DIRECTION REPEATER OPERATION
CHANGING THE POINTER SIZE
CHANGING THE POINTER STYLE
CHANGING THE SPEED SETTING
CLOSE HAULED REPEATER OPERATION
LOG REPEATER OPERATION
GETTING STARTED
ECHOSOUNDER REPEATER OPERATION
GETTING STARTED
CHANGING DEPTH ALARM SETTINGS
ACTIVATING DEPTH ALARMS
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1
2
2
2
3
4
4
4
4
5
6
6
6
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7
8

1
INTRODUCTION
Clipper Repeater units are supplied with a standard mounting kit. They are also supplied
with attached 5 or 10 metre leads which plugs into the rear socket on the master units.
They require no other connections, because they get their power and signals from the master
units, which are in turn powered by the vessel's power supply. Clipper Repeater units must be
matched to the master units they are connected to.
The Clipper range of repeaters offers intelligent operation so the repeater can be configured
to operate in different modes to the master. For example, the backlight setting is independently
controllable on all types. The Log can display any of the three options (speed, total distance,
and Trip distance) whatever is being displayed on the master. The Wind speed and Direction
repeater can display any speed and pointer type, and the Compass can offer assisted steering
commands and alarms which are fully independent of the master unit.
PRE-TEST OF INSTRUMENT
Before mounting any repeater unit, check that the instrument is complete and undamaged.
Plug the lead from the repeater into the back of the master unit and apply 12 volts.
Confirm that a reading is shown on both the displays.
INSTALLING THE REPEATER UNIT
Select a convenient position for the repeater on a panel or bulk-head. The site must be flat
and the cavity behind the panel must remain dry at all times. (The cable entry is deliberately
not sealed to ensure adequate ventilation. This prevents misting of the display).
Cut a hole in the panel 67mm high and 87mm wide. Pass the attached cable through the hole
ready for routing to the master unit.
Unscrew and remove the wing nut from the rear of the instrument and remove the stainless
steel clamping bracket. Fit the “O” ring seal into the groove in the panel mounting face of the
instrument. Ensure that it is correctly lying in its groove before fitting the instrument to the
panel, which provides the watertight seal for the display.
Fit the instrument into the panel, fit the stainless clamp over the stud, fit and tighten the wing
nut finger tight only.
It is important that the O-ring rubber seal makes good contact with the panel to prevent water
getting behind the unit and entering the cavity behind the panel.
It is good practice to run the cables vertically downwards from the unit, even if they later have
to rise to connect to the master unit. Doing so prevents any water that might get onto the
cables from running back along the cables and into the unit.

2
NORMAL OPERATION - ALL UNITS
When power is applied to the master unit, the repeater unit runs its own self-test procedures,
and commences repeating the master's display when the master unit's self tests are complete.
If Engineering is being done on the Wind or Compass master units, the repeater does not
display the progress, but shows “On” to show that it is waiting for normal operation to begin
in the master unit.
CHANGING THE BACKLIGHT SETTING
Backlighting is provided to allow the unit to be seen at night. In the same way as for the
master units, the backlit area is restricted in the top corners of the display to concentrate the
lighting in the areas of interest. The brightness of the backlighting can be adjusted at any
time independently of the backlight setting of the master unit. the brightness is adjusted by
pressing the ILLUM button. Each press of the button increases the brightness by one in the
range 0 to 7, shown by the backlight indicator in the bottom left of the Repeater display.
A setting of zero switches the backlighting off. In common with all the other settings in the
unit, the backlight setting is stored even when the unit is off, so that it returns to the chosen
setting whenever the unit is powered up again.
ENGINEERING - ALL UNITS
Engineering settings means those adjustments which seldom need changing, but which
affect how the unit operates. The settings (as are all those which can be selected in normal
operation too) are stored even when the power is disconnected. The available Engineering
settings depend on the Repeater unit, as follows.
In the Clipper Echosounder repeater, no Engineering settings can be done, so that there
can be no confusion between the master and repeater. The settings of the gain delay, feet
or metres, and the choice of keel or surface depth display can be selected only by the
master unit.
In the Clipper Log repeater, no Engineering settings can be done, to prevent errors confusion
between the two units.
In the Clipper Wind Repeater, no Engineering functions are available, because the dead-ahead
position should be set from the master unit alone. Alteration of the pointer style is available at
the repeater because it is not an Engineering setting.
In the Clipper Close-Hauled Display no Engineering settings are available.
In the Clipper Compass Repeater, all of the Engineering functions are available.
Magnetic or True variation is not available. This restriction is to ensure that the master and
Repeater cannot be at odds in their heading indication.
For full details of Engineering functions refer to the Clipper Compass Manual.

3
The Clipper Compass Repeater is a fully independent display with all of the functions of the
master unit.
Connect the repeater as per the wiring diagram below. Note - if a magnetic variation value is
programmed in the master unit, ensure the repeater is set to the same value. Follow the
Clipper Compass instructions to complete this function.
COMPASS REPEATER OPERATION

4
The operation of the Wind master unit is fully described in its Instruction Handbook. Most of the
facilities available in the master unit are available in the repeater, as described below. However,
it is not possible to perform any Engineering adjustments (such as vane alignment and
damping factor) to the system from the Repeater. No Engineering facility is offered in the
Wind Repeater.
WIND SPEED AND DIRECTION REPEATER OPERATION
CHANGING THE POINTER SIZE
The width of the wind direction pointer can be selected by the user. Press the INC button to
increase the pointer width. Press the DEC button to reduce the pointer width.
CHANGING THE POINTER STYLE
An alternative pointer is available which resembles a mast head indicator. Press the DEC
and INC buttons simultaneously to change to the alternative pointer style at any time. Press
the DEC and INC buttons again to change back to the standard pointer.
Note that no width adjustment of the standard pointer is available when the alternative
pointer is selected.
KTS
SCALE INC
DEC
ILLUM
KTS
SCALE INC
DEC
ILLUM
WIND
STANDARD POINTER ALTERNATIVE POINTER
Setting the Arrow pointer style
CHANGING THE SPEED SETTING
The Clipper Wind Repeater can display wind speed measurements in miles per hour (MPH),
nautical miles per hour (knots, shown as KTS), and metres per second (m/s). Pressing
SCALE switches between knots, miles per hour, and metres per second. The choice is always
saved so the unit operates as set whenever it is powered up again, and is not dependent on
the setting of the master unit.

5
CLOSE HAULED REPEATER OPERATION
The Close-Hauled Repeater has a non-linear scaling. Between 20 degrees relative wind to
Port and Starboard, the repeater pointer is parked dead ahead. Between 20 degrees and
60 degrees to Port and Starboard, the pointer moves in 2-degree steps (while the master
always moves in 6-degree steps). Between 60 and 150 degrees to Port and Starboard, the
pointer is parked at the appropriate 120 degree Port or Starboard position. Between 30
degrees to Port and Starboard of dead astern, the pointer again moves in 2 degree steps.
The parking positions are marked by breaks in the coloured bands.
The pointer size, pointer style and speed settings can be selected as per wind repeater
instructions in previous chapters.
CLOSE HAULED AND WIND SPEED AND DIRECTION REPEATER CONNECTIONS
Red
Screen
Blue
Blue
Black
White
NASA NMEA REPEATER CABLE
Plug into Repeater socket of
Clipper NMEA instrument
NASA MARINE
REPEATER
FOR USE WITH OTHER MANUFACTURERS
NMEA INSTRUMENT:
BLACK WIRE
RED WIRE
BLUE WIRE
-
-
-
NEGATIVE 12V
POSITIVE 12V
NMEA INPUT
KTS
ILLUM SCALE INC
DEC
40
40
60
20
60
20
20 20

6
LOG REPEATER OPERATION
GETTING STARTED
When the Clipper Log is first turned on with the Repeater connected, it automatically performs
a number of self-test processes, and after a brief delay switches on the backlight illumination
at the factory pre-set level. The Repeater then displays the word “on” until it acquires data
from the master unit.
SETTING A SPEED ALARM
At any time during normal operation of the unit it is a simple matter to set an alarm to sound
when the vessel’s speed reaches or exceeds the selected speed.
Press the SET key to enter speed alarm setting mode. The present setting is shown. If no
alarm is set, the word “off” is displayed. If an alarm is set, the display shows the speed at
which it will sound. Press INC to increase the setting, and DEC to reduce it. Keeping either
key pressed continues to increase or decrease the setting until it is released. If the setting
falls to zero, “off” is shown. The maximum setting is 99.9.
GETTING STARTED
When the Clipper Echosounder Repeater is first turned on, it automatically performs a number
of self-test processes, and after a brief delay switches on the backlight illumination at the
factory pre-set level. It then displays a symbol representing the master unit's keel offset for
about a second.
ECHOSOUNDER REPEATER OPERATION
ENTER SHALL
DEEP
ILLUM
METRES
Under all normal circumstances the repeater shows the same as the master unit.
If Engineering is being done on the master unit, the repeater displays the progress.
No Engineering settings are available on the Echosounder Repeater.

7
CHANGING DEPTH ALARM SETTINGS
At any time during normal operation of the unit, it is a simple matter to set an alarm for too
shallow and another alarm for too deep. The alarm settings can be different from the setting
of the master's alarm setting.
To set up the deep alarm depth (below which an alarm will sound), press the DEEP button
to show the present deep alarm setting. The display shows the word DEEP, and the present
deep alarm depth. The factory pre-set deep alarm setting is 50 metres. Press the DEEP
button to make the deep alarm depth deeper, and the SHALL button to make the deep alarm
depth shallower.
ENTER SHALL
DEEP
ILLUM
SHALLOW
METRES
ENTER SHALL
DEEP
ILLUM
DEEP
METRES
Selecting Deep or Shallow Alarm Setting
If the SHALLOW button is pressed steadily, the setting reduces continually in 1.5 foot or 0.5
metre steps. If the DEEP button is pressed steadily, the setting increases in 1.5 foot or 0.5
metre steps. The step size depends on whether the master unit is set to measure feet or metres.
If the deep alarm depth setting reaches 99.5m, or attempts to pass the shallow alarm setting,
it stops changing. When the desired alarm depth is set, press ENTER to store the deep alarm
depth setting. The display returns to measuring depth.
In the same way, pressing the SHALL button during echo-sounding switches to setting the
shallow alarm depth. The word SHALLOW is shown, and the shallow alarm setting depth is
displayed. The factory pre-set shallow alarm depth is zero. Pressing the DEEP button makes
the alarm depth setting deeper, and pressing the SHALL button makes the setting shallower.
If an attempt is made to increase the shallow setting below the deep alarm setting, or to
reduce it to less than zero, the settings no longer change. Press ENTER to store the shallow
alarm depth setting, whereupon the display returns to displaying the depth measurement
from the master unit.

8
ACTIVATING DEPTH ALARMS
At any time, the deep and shallow alarms may be activated or de-activated together at the set
levels by pressing the DEEP and SHALL buttons together. When alarms are active, a bell
symbol is displayed, but is absent when alarms are de-activated. Whenever the measured
(and averaged) depth is at, or shallower than, the shallow alarm setting, the alarm sounds, and
the word SHALLOW is shown. Whenever the measured (and averaged) depth is at, or deeper
than, the deep alarm setting, the alarm sounds, and the word DEEP is shown.
ENTER SHALL
DEEP
ILLUM
METRES
DEPTH
Activating and de-Activating the Alarms
The alarm can be stopped either by moving the vessel so the depth is between the settings,
by altering the alarm settings themselves, or by de-activating alarms by pressing DEEP and
SHALL together again. Each press of DEEP and SHALL together switches the alarm on or off.