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• You are familiar with NMEA and other relevant datagram formats.
• You know how to set up the parameters for serial and local area network (LAN)
communication.
• The interface port is set up with the correct communication parameters.
• The SN90 system is turned on and operates normally.
• The new sensor is physically connected to the SN90 system using a serial or network
cable. The sensor is turned on and in normal operation.
Neither tools nor instruments are required.
Context
The motion reference unit (MRU) measures the roll and pitch movements of the vessel.
Some sensor models also measure heave. The information provided by the motion
sensor is used by the SN90 system to stabilize the beams.
A hull unit may be provided as an option. It allows you to lower and hoist the transducer.
A motion sensor for electronic stabilization of the sonar beams is provided. It is placed
inside the Motor Control Unit. For improved operational accuracy, an external motion
reference unit (MRU) can be used.
With hull unit
The SN90 system uses the built-in motion sensor. The sensor uses a local area
network (LAN) port on your computer. A message on the page verifies that it is
connected to the SN90 system's beamformer application.
If you wish to use an external motion sensor, connect it to a vacant serial port, and
set
to the corresponding COM port.
Port
Without hull unit
Use an external motion sensor connected to a local area network (LAN) or serial
port on your computer.
Procedure
1
Connect the motion sensor system to an available communication port on your
computer.
This is described in the Installation Manual.
2
Open the
Setup
3
On the
menu, select
Setup
Observe that the
of pages selected from the menu on the left side.
381294/E
menu.
Installation
dialog box opens. This dialog box contains a number
Installation
.
Maintenance procedures
207
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