Installation manual

Simrad SD570

850--160139 / A

2. MAIN SWITCH

The main switch controls the mains power to the sonar, the

lowering and hoisting of the transducer, and indicates the

transducer position.

Note ! Before lowering the transducer, check that the depth of water below the

vessel is sufficient, and that the vessel’s speed is below 15 knots. This is

the maximum speed specified with the transducer lowered.

ON-OFF

In order to start up the sonar, press the ON-OFF/HOIST button

for approx. two seconds. The button lights up and indicates that

the transducer is in upper position. To be able to switch off the

sonar, the transducer must be in upper position. Press the button

for approx. two seconds, until the sonar is switched off.

WARNING ! If the Sonar Control Unit is switched OFF due to, for

example, power failure, with the Hull Unit lowered, the

Hull Unit must be raised by using the hoisting/lowering

switch in the motor control unit, or by the hand crank

(refer to section Maintenance ).

HOISTING

If the transducer is in the lower position, the transducer can be

hoisted to the upper or middle position with the

ON-OFF/HOIST button. The selected transducer position is

shown on the upper line in the menu field.

· MIDDLE position is selected by a normal short press on the

button.

· UPPER position is selected by pressing the button for approx.

two seconds.

LOWERING

If the transducer is in the upper position, the transducer can be

lowered to the lower or middle position withthe LOWER button.

Selected transducer position is shown on the upper line in the

menu field.

· MIDDLE position is selected by a normal short press on the

button.

· LOWER position is selected by pressing the button for approx.

two seconds.