Service manual

Simrad EK 500 / EY 500
P2260/E 11
Centering of split beam
The purpose of this operation is to move the immersed, suspended sphere onto
the acoustic axis of the transducer. First the echo sounder must be set so that
the echo from the sphere is visible on the display.
Note that in the following procedures, references to transceiver 1, 2 and 3, and
printer 1, 2 and 3, only apply to the EK 500 echo sounder. The EY 500 only uses
one transceiver and one printer.
Select the Transceiver Menu and set:
Mode: Active
Pulse Length: Medium
Bandwidth: Wide
Transducer Depth 0.0 m
Select the Operation Menu and set
Ping Mode: Normal
Ping Interval: 1.0 sec.
Noise Margin: 0 dB
Select the Display/Echogram Menu and set
Range: Select a range from the sea surface to well be-
low the sphere
Range Start : 0 m
Auto Range: Off
Bot. Range Pres.: Off
Presentation: Normal
Layer Lines: On
Integration Lines: 10 000
TVG: 40 log r
TS Colour Min: -50 dB
Select the Log Menu and set
Mode: Ping
Ping Interval: 100
Select the Layer Menu and set
Super Layer: 1