JRC JFE-582, Instruction Manual

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1. Introduction 1
1. Introduction
1.1 Function
The JFE-582 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 sea bottom. 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-582 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.
The recorder uses 150mm-wide paper to show the previous 10 minutes, 20 minutes, or 30 minutes of
historical data. Or the paper can be stopped. One roll of paper can record a maximum of approximately 37
hours continuously. Depth measuring ranges of 10m, 50m, 250m, or 500m can be selected.
1.2 Feature
The JFE-582 features the following:
Conforms to the IMO Standard
• When the depth becomes shallower than a previously set value, a depth alarm is issued by buzzer and
lamp.
• When power is cut to the main unit, a power fail alarm is issued by buzzer and lamp.
• Contact signals can be output for both depth and power fail alarms.
• Data on depths can be output.
Ease of Use
• Knobs are used for illumination controls, allowing them to be readily distinguished from other keys.
• Independent event mark, range, and depth alarm keys for instant operation.
• Remote cancellation of alarm buzzer.
Digital Depth Display
• No need for time-consuming reading of depths using a scale against the profile of the sea floor 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.