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6

6. Mounting the 

Speedwatch

IMPELLER

The  impeller  is  fixed  on  the  watercraft,  with 

many options. We recommend you to fixe the 

impeller at the prow, to avoid turbulences. 

TRANSMITTER

The  transmitter  is  inside  the  hull  with  the 

magnetic  sensor  at  30  centimeters  from  the 

impeller.  The  transmitter  has  to  be  fixed  with 

the "Dual Lock" to avoid any movement. 

DISPLAY

The  display  can  be  placed  everywhere  in  the 

boat  until 

5  meters

  from  the  transmitter.  A 

plastic mounting support is joined to the display 

and can be mounting on a flat area or the Velcro 

strap can be used to wrap around the mast or 

the leg. The transmitter has to be fixed to avoid 

movement but the display can be moved while 

it receives data. 

a)  Impeller on rudder attachement

b)  Impeller on fin attachement

c)  Transmitter

d)  Display (not to scale)

IMPELLER, TRANSMITTER AND DISPLAY 

ORIANTATION

To  have  a  maximum  distance  between  the 

impeller  and  the  transmitter,  we  recommend 

you  to  put  the  transmitter  in  perpendicular 

position to the impeller as shown in the picture 

below.  The  distance  between  the  transmitter 

and  the  display  is  maximum  if  the  display  is 

perpendicular to the transmitter.

Three  mounting  systems  are  included  in  the 

SPEEDWATCH  kit;  a  removable  fin  mount,  a 

large fin to be fixed on the keel back side and a 

rudder mount. 

The rudder mount has a black clip that rests on 

the  edge of  the  rudder, the  strips  of  adhesive 

are then wrapped around the clip and secures 

it  to  the rudder.  The impeller  is  screwed onto 

the end.

The large blade fin to be fixed on the keel back 

side can either be attached with VHB adhesive 

tape or by screws. The cotter pin can be moved 

to adjust the movement of the fin to allow the 

impeller to be out of the water.

The  white  fin  mount  has  a  base  plate  that 

is  attached  to  the  hull,  either  with  the  VHB 

adhesive  tape  or  by  screws.  The  fin  can  then 

be inserted and removed to store the impeller 

while not in use. The impeller is screwed onto 

the end.

Transmitter

Display

Impeller

Magnetic 

sensor

Summary of Contents for SpeedWatch

Page 1: ...then sends out a low frequency radio signal that is received by the display up to 5 meters The signal is processed and displayed as instant speed The SPEEDWATCH uses this speed signal to calculate th...

Page 2: ...readed shaft o Threaded base p Magnetized impeller Display front Display back Transmitter Impeller 2 Display Screen Description a Automatic auto or manual man chronometer or countdown timer timer b Ch...

Page 3: ...play The display cannot sense the impeller directly the transmitter must be on 1 2 3 TRANSMITTER The SPEEDWATCH Transmitter requires a 9V battery to operate this is included in your system To install...

Page 4: ...on to move the time back Press and hold the button to change the time faster It will start minute by minute for the first ten minute change then every ten minutes for the next hour change and then eve...

Page 5: ...ns for three seconds to enter the programming mode Do not change the timer setting exit the programming mode by pressing and holding the SPEED and CHRONO buttons for three seconds 5 5 Basic Operating...

Page 6: ...ller and the transmitter we recommend you to put the transmitter in perpendicular position to the impeller as shown in the picture below The distance between the transmitter and the display is maximum...

Page 7: ...ng mode Press and hold both the SPEED and CHRONO buttons for three seconds to enter the programming mode chrono and man manual or auto automatic will flash Press the SPEED button five times to advance...

Page 8: ...early showed that the SPEEDWATCH is in LDA Laser Doppler Anemometry 3 accuracy SPIN OUT All water tests made in real situatione with high speed windsurfs more than 30 knots showed that there were no t...

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