Installation manual
Simrad SD570 / Base version
34
851--160117 / B
7.3 Checking the speed log readout
j Ifthe speedlogisequippedwithatestoutputsignal,this
testcanbecarriedoutwiththeshipashore,butifnot,this
test must be done while the ship is sailing.
j Connect the speed log cable (1) to the connector marked
PULSE LOG (or PORT B for a serial line log).
j Press the ON/OFF--HOIST button to start up the Sonar
Control Unit.
j Check if a big A is displayed on the SPEED line in the
menu.This Ameansthatthespeedwill beautomatically
readfrom theconnectedspeedlog.If not,setthe speedto
be read automatically as described in the SPEED
submenu.
j Check if the speed readout corresponds to the speed log.
If the readout does not change, or is incorrect, refer to
chapter7.3insection“Installationprocedures”andcheck
the following:
- Checkif theswitch settingon DILswitch S1 (andlinks for
a log with serial line output) on the CUB PCB is correct
according to the table for the speed log (see chapter 7.3
in section “Installation procedures”).
- If a pulse log is connected, refer to figure 23 in section
“Installation procedures” and thetext below the figure to
check the pulse log signal.
- Check if the termination on the LOG plug is correct.
- Check the speed signal at the LOG plug terminations.
j When the speed log readout works OK, switch off the
Sonar Control Unit by pressing the ON/OFF--HOIST
button.
7.4 Checking the echo sounder and trawl system
readout
If such auxiliary equipment is connected to the sonar system, use
the test procedure described in the appendix for the installation.