Installation Instructions

3-6
5. Do the following for both the high and low frequency transducers, or whichever transducer
is installed.
a) Press [ ] to select [HIGH] FREQ or [LOW] FREQ, and then press [+] to open the dialog box.
--- kHz
b) Press [+] or [-] to enter transducer frequency, and then press [ ] or [ ] to close the dialog
box.
c) Press [
] to select SUPPLY VOLT, and then press [+] to open the dialog box.
--- V
d) Press [+] or [-] to enter transducer supply voltage, and then press [
] or [ ] to close the
dialog box.
e) To operate the transducer in reduced power (for example, when vessel is in dry dock),
press [
] to select TX POWER, and then press [+] to open the dialog box.
MAX 1/2 1/4 1/8 1/16 MIN
f) Press [-] to select MAX and then press [ ] or [ ] to close the dialog box.
g) If the transducer frequency and power frequency are the same, noise will be present in the
picture. To prevent this, change the inverter (power) frequency. Press [
] to select
INVERTER FREQ, and then press [+] to open the dialog box.
LO(59/118/177kHz) STD(62/125/188kHz) HI(66/132/198kHz)
6. Press [+] or [-] to select appropriate power frequency, and then press [
] or [ ] to close the
dialog box.
7. Confirm settings and turn off the power.