Operating Procedure - Simrad EY500 Instruction Manual

Calibration
F3. To record the reference target detections from the EK 500/EY 500 into a
measurement data file. Horizontal hit position and vertical target depth are
displayed.
A simulation mode is available for demonstration and training purposes by
starting the lobe calibration program with an option parameter
lobe.exe -s
F4. To view the true transducer pattern. A two-dimensional polynomial of the
fourth degree is least square fitted to the measured data points and
displayed. Please observe that the polynomial model has more freedom to
adjust to the measured data points than the EK 500/EY 500 internal
transducer model. Hence, the polynomial model should be used to view the
true transducer pattern.
F5. The internal transducer model of the echo sounder is least-square fitted
to the measured data points and displayed. The optimum pattern parameters
are automatically loaded into the echo sounder using the remote control
commands via the RS232 connection.

3.2 OPERATING PROCEDURE

Connect an RS232 serial line cable between the PC and Serial Port 1 on the EK
500 and the serial line on the PC for the EY 500.
Type F2. The plug connections will then be given on the computer display.
Check that the echo sounder Serial/USART Menu has settings corresponding
to those given in the LOBE RS232 Menu. Refer to figure 6.
Switch on the echo sounder and select the Serial/Telegram Menu and set
Remote Control to On. Follow the instructions previously given for Centering of
split beam until the sphere appears as a steady line in the echogram and the
sphere is positioned in the centre of the beam and at a suitable distance from
the transducer.
Switch on the PC and start the LOBE program. Then the LOBE program will
enter necessary menu settings in the echo sounder and read necessary
parameters from same. While the sounder is operating, check that the RS232
serial line connection is active by typing F2.
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P2260/E