ECHO-SOUNDER

There are 5 controls on the echo sounder. These controls are counted below:

Power(On/Off): This control operates the echo-sounder if the control is switched to on.

Dimmer: This control regulates the light of the system, in case that it is used inthe dark places.

Range: This control regulates the range to be measured. It has three positions. First position is 0-50 meters, second position is 0-500 meters, and last position measures the range of 500-1000 meters. A second control related to the range control adjusts the unit of the measurement. It can be adjusted to measure according meters or fathoms.

Mark: This control burning the paper makes a mark on the paper and separates one depth measurement from the following measurment.

Gain: Gain controls the intensity of the echo so that a more clear measurment can be obtained.

Firstly, power control is made on and echo-sounder starts to work. Light can be adjusted depending of the light condition. Then, accoding to the depth that we are present range control is regulated. Also, the unit that we want to measure the depth is chosen. Then we shoud look at the paper.We can read the depth looking at the table at the side. If the depth can not be seen the sensitivity of the gain control shold be increased.

The inside of the echo-sounder is apt to dirt inside by the carbon powder. Sometimes this dirt should be cleaned.