Operation Manual

ULTRASONIC SPEED SENSOR
4
1.1 Introduction
The Ultrasonic Speed Sensor offers highly accurate boat speed measurement
with a minimum of maintenance due to not having any moving parts. The
Ultrasonic Speed Sensor uses ultrasonic pulses to obtain echoes from particles
in the water. If the sensor loses contact with the water, or is positioned in a flow
of highly aerated water, it will lose its signal and register an incorrect speed
measurement. Once good water contact is re-established, boat speed is
recovered instantly. The Ultrasonic Speed Sensor is unsuitable for use with
high speed ‘stepped hull’ type boats that induce airflow under the hulls.
Before you begin using the Ultrasonic Speed Sensor, please take the time to
read this manual to help you achieve the full potential of your system.
1.2 Features
No moving parts
Highly responsive speed measurement
Highly accurate from 0.1 to 60 knots
Negligible drag
Full retrofit with post 1997 ‘paddlewheel’ type speed installations
1.3 Compatibility
The Ultrasonic Speed Sensor requires integration with one of the following
systems:
Hydra
Hercules
HS2000
Note: dependent upon the age of your system, the software may need to be
upgraded. Refer to your National Distributor for more information.