OPERATOR’S MANUAL
50BL-24HR TRANSDUCER
A BLT transducer (Bolt-clamp Langevin Transducer) 50BL-24HR has replaced the 50F-24H
or 50BL-24H in FCV-291/292/1100L/1200L/1500 and ETR-2D/30N.
The BLT transducer has large bandwidth, good sound efficiency, compact structure and is
reinforced for protection against slamming.
WARNINGWARNING
Be sure no water leaks in at the trans-
ducer mounting location.
Water leakage can sink the vessel. Also,
confirm that the transducer will not loosen
by ship's vibration. The installer of the
equipment is solely responsible for the
proper installation of the equipment.
FURUNO will assume no responsibility for
any damage associated with improper
installation.
Turn off the power at the
switchboard before
beginning the installation.
Fire or electrical shock can
result if the power is left on.
CAUTIONCAUTION
The BLT transducer cable must he
handled carefully, following the
guidelines below.
•Keep fuels and oils away from the
cable.
•Locate the cable where it will not be
damaged.
•The cable sheath is made of chloro-
phrene or polychloride vinyl, which
are easily by damaged plastic solvents
such as toulene. Locate the cable
well away from plastic solvents.
•Do not lift the BLT transducer by its
cable. Wires of the BLT transducer
may be cut.
Do not install the BLT transducer where
noise or air bubbles is present.
Performance will be affected.
Features
When the BLT transducer is connected to the FCV-1100L or FCV-1200L, sensitivity is
sufficient even if the frequency is shifted ±10% to suppress interference.
The BLT transducer can be installed in tank for the transducers shown in the table below.
BLT transducer Transducer
previously used
Output Note on replacement of
transducer
50F-24H Shorten the length of
spacers.
50BL-24HR
50BL-24H
3 kW
Change fixing flange for
transducer.
Add spacers.
PUB. NO. OMC- 20316- A
( 0 4 0 1 , TENI ) 50BL- 2 4 HR
