MEDC DB3B - User Manual

© MEDC 2014
05/14
Technical Manual for the Sounder – DB3B
Manuel technique du Générateur de sons – DB3B
Technische Bedienungsanleitung für den Schallgeber – DB3B
Manual técnico para a sirene - DB3B
Please note that every care has been taken to ensure the accuracy of our technical manual. We do not, however,
accept responsibility for damage, loss or expense resulting from any error or omission. We reserve the right to make
alterations in line with technical advances and industry standards.
Merci de noter que nous avons pris toutes les précautions pour garantir l'exactitude des données de notre manuel
technique. Nous déclinons cependant toute responsabilité pour les dommages, pertes ou frais résultant de toute
erreur ou omission. Nous nous réservons le droit d'apporter des modifications conformes aux progrès techniques et
aux normes de l'industrie.
Zu beachten: Obwohl wir die größtmögliche Sorgfalt darauf verwendet haben, die Richtigkeit unserer technischen
Bedienungsanleitung zu gewährleisten, übernehmen wir keinerlei Verantwortung für Beschädigungen, Verluste oder
Ausgaben, die aufgrund eines Fehlers oder einer Auslassung entstehen. Wir behalten uns das Recht vor, Änderungen
gemäß dem technischen Fortschritt und der Industriestandards vorzunehmen.
Observe que todo cuidado foi tomado para garantir a precisão de nosso manual técnico. Porém, não aceitamos a
responsabilidade por danos, perdas ou despesas resultantes de qualquer erro ou omissão. Reservamo-nos o direito
de fazer alterações em linha com os avanços técnicos e os padrões do setor

Summary

General Safety Messages and Warnings

Safety Instructions for Installation and Maintenance

Crucial safety instructions covering power, enclosure sealing, isolation, and testing.

Installation Guide for DB3 B Sounders

Access to Terminals

Details on accessing terminals for Ex d and Ex de versions, cover screws, and O-ring seating.

AC Wiring Configurations

Wiring details for AC Ex d (Types 1&2) and AC Ex de (Types 3&4) units.

DC Wiring Configurations and Variations

Wiring for DC units (Types 5&6) including variations and voltage-free activation (Types 7&8).

DB3 B Sounder Operation

Stage Selection and Tone Control

Explanation of stage selection via DIP switch and volume control adjustment.

Standard Tone Table

List of standard tones, their switch settings, frequencies, and sound pressure levels.

Voltage-Free Stage Tone Selection

Table of pre-selected tones for voltage-free activation stages in DC and AC versions.

Maintenance and General Arrangement

General Arrangement Diagrams

Dimensional drawings for Ex d and Ex de versions with standard and swivel brackets.

Unit Maintenance and Cleaning

Guidelines for routine maintenance, cleaning, and repair of the MEDC DB3B sounder.

Certification and Approvals

IECEx Certification Details

Certification standards and markings for IECEx Gas (G) and Gas & Dust (GD) units.

ATEX Certification Details

Certification standards and markings for ATEX Gas (G) and Gas & Dust (GD) units.

Special Conditions for Safe Use

Ex d Unit Safe Use Conditions

Specific conditions for safe operation of Ex d units, including screws, finishes, and temperature ratings.

Ex de Unit Safe Use Conditions

Specific conditions for safe operation of Ex de units, including terminals, leads, and temperature ratings.

MEDC DB3B Specifications

General

Brand	MEDC
Model	DB3B
Category	Marine Equipment
Language	English