JMC F-2000 - Page 2

1,
F-2000
WARNlNG
<WARNINGS>-'l2
THE REAR
PANEL-MOUNTED
TRANSDUCER
CONNECTORS
ARE
EMITTING
EXTREMELY
HIGH
VOLTAGE
RADIO-FREQUENCY
PULSES.
THESE
CONNECTORS
ARE
COVERED
WITH A
SCREW-LOCKED
PROTECTIVE
RUBBER
CAP
WHEN
THE
EQUIPMENT
IS INITIALLY
DELIVERED,
TO
AVOID COMING
INTO CONTACT
ACCIDENTALLY
WITH
THE
CONNECTOR
PINS,
BE SURE
TO PLACE
THE
PROTECTIVE
CAP:
.
OVER
THE UNUSED,
EXPOSEO
CONNECTOR'
IF
THE
EQUIPMENT
HAS
A SINGLE
TRANSDUCER
PLUGGED
IN, OR
.
OVER
EACH
CONNECTOR
WHENEVER
EXPOSED
PINS
BECOME
EASILY
ACCESSIBLE,
SUCH
AS WHEN
EITHER
.TRANSDUCER
IS UNPLUGGED
FOR
INSPECTION
OR
SERVICING,
AND
LOCK
THE CAP
WITH
THE TWO
SCREWS
ATTACHED.
THE ACCURACY
OF
THE
ON-SCREEN
DEPTH READOUT
IS
AFFECTED
BY WATER
TEMPERATURE,
SALINITY
DEPTH AND
OTHER
UNDERWATER
CONDITIONS
AS
WELL AS
THE SHIP'S
ROLL
AND
PITCH, HEEL
AND
TRIM.
TAKE
THESE
POSSIBLE
ERROR_CAUSING
FACTORS
INTO
CONSIDERATION
WHEN
USING
fHE DEPTH
READOUT,
SUCH
AS
WHEN
NAVIGATING
SHALLOW
AREAS
OR IN
APPLICATIONS
WHERE
ACCURATE
DEPTH
READING
IS CRITICAL.
DURING
SHALLOW
WATER
OPERATION,
THE EQUIPMENT
MAY
OCCASIONALLY
READ
TWICE
THE ACTUAL
DEPTH
BY
LOCKING
ONTO
THE
.lSECOND
BOTTOM
ECHO.
THE DIGITAL
DEPTH
READOUT
SHOULD
BE
COMPARED
WITH
THE GRAPHIC
BOTTOM
INDICATION
OR
WITH SOUNDINGS
DATA
IN OFFICIAL
PAPER CHARTS
TO DETERMINE
THE
TRUE
DEPTH.
TOTAL
RELIANCE
ON THE
DIGITAL
READOUT
ALONE
FOR
DEPTH
INFORMATION
IS
DANGEROUS
AND
MUST
BE AVOIDED.
*1
See
parAEraph
3.4.2
for more
;nlormation on
the second
bottom echo.
lcantt,ued
an
nert'
Pata)