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Furuno LH-3000 User Manual

Furuno LH-3000
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FURUNO
LH-3000
SP - 1
E5646-S01-A
SPECIFICATIONS OF LOUD HAILER
LH-3000
1. AUDIO OUTPUT
1. Hail speaker 30 W, 8 ohms
2. Intercom speaker 4.5 W, 4 ohms
3. External speaker 4.5 W, 4 ohms
4. Internal speaker 2.5 W, 4 ohms
2. INPUT IMPEDANCE
1. MIC impedance 600 ohms
2. Aux impedance 10K ohms
3. INPUT SENSITIVITY
1. MIC sensitivity -73 ±3 dB (0 dB=1V/µBar
2. Aux sensitivity 0 dBm ±3 dB (at 1 kHz)
4. DISTORTION FACTOR
1. Hail mode 10% (1 kHz 30 W)
2. Intercom mode 10% (1 kHz 2.5 W)
5. SIGNAL-TO-NOISE
1. Hail mode 60 dB (1 kHz)
2. Intercom mode 60 dB (1 kHz)
6. POWER SUPPLY & POWER CONSUMPTION
13.6 VDC (±20%), less than 5A (30 W), less than 280 mA (standby)
7. ENVIRONMENTAL CONDITIONS
1. Ambient temperature -15 to 5C
2. Relative humidity 95% at 40°C
3. Waterproofing IPX5 (Front panel), IPX0 (Other)
8. WEIGHT, COLOR
1. Weight 2.0 kg (not including hanger)
2. Color Munsell N3.0

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Questions and Answers:

Furuno LH-3000 Specifications

General IconGeneral
BrandFuruno
ModelLH-3000
CategoryTransmitter
LanguageEnglish

Summary

Safety Instructions

General Safety Warnings

Critical precautions about unit operation, disassembly, liquid spills, and heat sources.

Cautionary Notes

Advises on proper usage, avoiding magnetic interference, and handling water ingress.

Installation

Mounting the Loud Hailer

Covers mounting considerations and procedures for desktop, bulkhead, overhead, and flush installations.

Intercom Speaker Installation

Details connecting and mounting the optional intercom speaker for 2-way communication.

Wiring and Connections

Explains how to connect power supply, speakers, microphone, alarm sensor, and other accessories to the rear panel.

Operational Overview

Control Panel and Basic Operation

Overview of front panel controls, power on/off, and adjusting volume/backlighting.

Intercom and Hailing Operations

Covers calling intercom stations, receiving calls, and hailing by voice.

Warning Signals and Auxiliary Input

Details sounding warning signals and transmitting auxiliary audio.

Alarm Mode Operation

How to enable and disable the burglar alarm function.

Maintenance and Troubleshooting

Preventive Maintenance

Outlines monthly checks for cabling, connections, and input voltage, plus cleaning procedures.

Troubleshooting and Fuse Replacement

Provides solutions for common issues and guidance on replacing the internal fuse.

Technical Specifications