WÄRTSILÄ ELAC LAZ 5200, Руководство по эксплуатации, Страница: 32 / 136

ELAC LAZ 5200 – Operating Instructions
Technical Description
30 / 134 Wärtsilä ELAC Nautik GmbH TH 52 614 8001 EN Rev. A 09/2018
R
efer to pr
otection
notice ISO 16016
3.3.3 Ultrasonic Transducer
Fig. 3.4: Ultrasonic Transducer
The ultrasonic transducer
• is a piezoelectric sonar transducer;
• converts the transmitted electrical energy into acoustic energy and transmits this as
acoustic signals into the water;
• converts the acoustic signals received from the water (echo of the transmitted sound)
into electrical energy that can be analysed electronically;
• is protected by a seawater-resistant filling compound.
The following ultrasonic transducers can be used:
Ultrasonic trans-
ducer Frequency Maximum sound-
ing depth
Max. cable length
LSE 179 15 kHz 6000 m 600 m
LSE 131 30 kHz 2000 m 600 m
LSE 297 50 kHz 600 m 400 m
LSE 329 100 kHz 250 to 300 m 200 m
LSE 313 200 kHz 250 to 300 m 150 m
Tab. 3.2: Overview of Ultrasonic Transducers
The data for the maximum cable length apply to screened cables with a core cross-sec-
tion of at least 1.5 mm² per core.