1. Introduction
1.1 Function
The JFE-380 Echo-Sounder consists of a transducer mounted on the bottom of the ship's
hull and a main unit that displays information on the depth and formation of the seabed.
This information is gained by using ultrasonic waves sent from the transducer that are then
reflected off the sea bottom and picked up again by the transducer. The JFE-380 also has
the following functions:
(1) depth alarm, (2) power fail alarm, (3) output of depth data, (4) output of depth and power
fail alarms.
1.2 Feature
The JFE-380 features the following:
• Three display modes; standard, history, and docking.
• Depth data for last 24 hours in memory to play back the past sounding information.
• Dual frequency mode and two transducers are available in option. (*requires an optional
equipment)
Conforms to the IMO Performance Standard
• When the depth becomes shallower than a previously set value, a depth alarm is issued by
buzzer and LCD display.
• When power is cut to the main unit, a power fail alarm is issued by LED blinking.
• Contact signals can be output for both depth and power fail alarms.
• Data on depths can be output.
Digital Depth Display
• No need for time-consuming reading of depths using a scale against the profile of the
seabed on the paper! The current depth can be seen at a glance.
Self-Diagnostic Functions
• Self-diagnostic functions can be selected from a menu, improving ease of maintenance.
1. Introduction 1
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