Instruction manual
~lE.I'.ER
ALARM
Location
Loudne
..
(SPLI
Enable
Alarm Depth
Sel
OpeUlion
Downward
Forward·Looking
Alum
Oi
••
ble (Acknowledge)
CONTROLS
Keel
Offset
Switchu
Peel/Maters
Swikh
ALARM
Swlkh
POWER UP
APPENDIX 1
SPECIFICATIONS
(CO~.l
DESCRiptION
On
rear
cover
90decibels
at
1 foot
Moment.arily press AlARM
swikh
on front
paneL
lncremenU
by
1 fl;
to
2{l
fl;,
then
by
~
fl; beyond
20
n.
Mllllimum alarm depth
leuinr
is
I~O
n.
Beeper
on
when indication depth
il
equal
t.o
or
Iu.s
than
alarm
se~ting.
Computu
predicted depth
in
the next 20·sec
period. The alarm sound is
II
long beep tone,
Momentarily press
ALARM
switch to
diuble
Alarm mode.
DIP switch pack on
rear
board assembly
(rear
cover panel
must
be
removed lO set
switches). Three switches enable keel offset
diit.an~
to
be
set from 0 to 7
fl.
in
1.ft.
increments.
Inside;
Plrt
of DIP switch
pick
{see keel
offsetl. Position selects
whether
depth
indication is feet or meUlrs.
Pushbutton
on
front face; waUlrproof. Alarm
mode
Ofl
is
activated on
or
off with each
momentary
depression. Holdinr down
lon~r
than 3
second.
reset.s
alano
to
O.
Contifluolll hold
incrementl
alann
set
point.
When in Meters mode,
alarm
set
i.
di.played
in
meten.
ALARM mode disabled.
Depth
.lann
seuing
311.
SYMPTOM
No
dIsplay andlor display
nol back lighted.
Microprocessor
does
flOI
complete
all
resel
lunCllons.
Displav Indlcalion Is rlash·
ing 18.8.8.
Display Incticallon
random
or
errallc.
APPENDIX 2
TROUBLE SHOOTING CHART
?ROOABLE
CAUSE
12
vee
nol
comecled
I2
VOC
conl\Kllons
"versed
Open
or
short
cirCUli
In
power cable.
Power broughl up 100 slowly. Unable
10
properly Inilialize.
Transducer
not
connected.
Opefl
or
short
circuit
In
Iransducer
cable.
Cabll
ab,aded
Ind
willS
shon
circuited to
each
other.
or
10
shielding, 01
to
some
olller
ground
(continuously
or
lnlermlltently).
Transducer
cov.rld
wilh
some
louling
substance;
e.g
.•
oil.
scum,
algae.
kelp-
Ilal,
mime
growtlll,
lie.
Electric
••
nol,.
Interf,rlnce.
RECClMMEt-DED
REMEDY
Connect
12
VOC
Cofrect 12
voe
conneclion; red
10
black. black 10 black.
Check
power
cable
condition.
AemoVl'
and
repalee derective power cable.
Jf
cable
wom
or
abraded.
rerOlllS
or
replace cable.
Power on quickly by abrupl
swllchlng.
Check
and
oonnecttransducer
cable.
Check
lransducer
cable
condiHon.
Remove
and
replace defective
Iranlducer
cable.
Do
not
splice or
aHempl
cable
repair
because
system
impedance could
be
changed or
shielding could
be
lost
Either
Impedance
change
or loss 0/ shielding
could adversely alleel
system
perrormance.
(See
above.l
Inspecl and
clean
transducer.
reroute Irilnsclucer
cable
away Irom
electrical
source.
InstaJi electrical
noise
suppressor
i
series
with
12VDC
power.
Display
In
leel when should I
FTIM
DIP swl1ch
not
properly SIt before
bl
In
meiers,
or
vice
versa.
lnllallallon.
Chedt
and
sat
FTIM
pan
or
DIP
switch
pack
to
proper
position.
"
Keel OHset not
wblracted
rrom Indication
or
nOI
correclly
computed
(discovered
by
comparing
with
chan
or
otller
boll).
Keel Offset
DIP
$wllChes nol properly set
balorl
Installallon.
..
Check
and
sal Keel Offset
pan
or
DIP
$wltch
pack
10
propel
position.