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2 Introduction to EMES60
2.1 Summary
EMES60 is a combined electromagnetic speed log and echosounder navigation
system. It is a single sensor with two transducers in one housing.
Both parts have been designed to meet the relevant international standards and
provide all the modern and legacy input-output interfaces that are specified by
the IMO standards.
As required by the relevant regulations, the two parts are totally separated
internally.
The main advantage of this arrangement is that the system only needs one hull
penetration, and one set of mounting hardware, thus increasing reliability and
reducing costs of installation and maintenance.
The size and weight of the sensor is significantly less than other systems on the
market, which greatly facilitates installation and handling.
2.2 Highlights
• Only one hull penetration, which increases safety of navigation
• Small overall diameter of sensor, requiring small hull penetration, which
minimizes the risk of mechanical damage
• Sophisticated analog and digital signal processing, which provides reliable
data in any navigation conditions
• All modern and legacy input-output interfaces are supported, including
IEC61162-1
• Sound speed calibration based on temperature, which provides accurate
depth measurements in different conditions without the need for manual
adjustments
• Includes water temperature sensor, accurate to 1°C
• Optimized electromagnetic log operational parameters, which provides
accurate speed through water measurements in different water conditions,
such as sea water, river water, and brackish water
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