MEDC DB3 Technical Manual
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MEDC DB3 Technical Manual

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E-Mail: info@medc.co.uk
REV`D
MEDC
Fax: +44 (0)1773 580282
Tel: +44 (0)1773 812249
,
Colliery Road
Pinxton, Notts., NG16 6JF U.K.
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.
© Cooper MEDC 2013
Title:
Technical Manual for the Speaker DB3 & DB3L
DB3 TECHNICAL MANUAL
PROCEDURE/
DOCUMENT NO.
1
DD036-0
-03

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Summary of Contents for MEDC DB3

  • Page 1 Colliery Road Pinxton, Notts., NG16 6JF U.K. Technical Manual for the Speaker DB3 & DB3L 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.

  • Page 2: Installation

    Ensure that only the correct listed or certified stopping plugs are used to blank off unused gland entry points and that the NEMA/IP rating of the unit is maintained. MEDC recommend the use of a sealing compound such as HYLOMAR PL32 on the threads of glands and stopping plugs in order to maintain the IP rating of the unit.

  • Page 3: Operation

    REV`D MEDC Fax: +44 (0)1773 580282 DOCUMENT NO. Tel: +44 (0)1773 812249 DB3 TECHNICAL MANUAL DD036-0 Colliery Road Pinxton, Notts., NG16 6JF U.K. external terminal is for a supplementary bonding connection where local codes or authorities permit or require such a connection.
  • Page 4 REV`D MEDC Fax: +44 (0)1773 580282 DOCUMENT NO. Tel: +44 (0)1773 812249 DB3 TECHNICAL MANUAL DD036-0 Colliery Road Pinxton, Notts., NG16 6JF U.K. Tones For all versions, a 5-way DIL switch selects the tone required. The settings for the standard tones are shown...

  • Page 5: Maintenance

    If the unit requires cleaning, then only clean exterior with a damp cloth to avoid electro-static charge build up. Repairs should be undertaken by returning the unit to MEDC or by an authorised repairer of Ex equipment. All parts of the unit are replaceable.
  • Page 6 Title: PROCEDURE/ REV`D MEDC Fax: +44 (0)1773 580282 DOCUMENT NO. Tel: +44 (0)1773 812249 DB3 TECHNICAL MANUAL DD036-0 Colliery Road Pinxton, Notts., NG16 6JF U.K. 5.0 CERTIFICATION/APPROVALS IECEx units Certified to IEC 60079-0, IEC 60079-1 and IEC 60079-7 Ex d IIC unit (IEC certification No. IECEx BAS 11.0083X)

  • Page 7: Special Conditions For Safe Use

    BS EN 50081-2:1995 6.0 SPECIAL CONDITIONS FOR SAFE USE a) Type DB3/DB3L - IECEx BAS 11.0083X & BAS00ATEX2097X (Exd) 1. This apparatus is not suitable for use in atmospheres containing carbon disulphide This apparatus is suitable for use only in ambient temperatures as follows: Max.

  • Page 8: Functional Safety

    The glass reinforced polyester enclosures are suitable for use offshore or onshore, where light weight combined with corrosion resistance is required. The DB3 sounder can be configured with or without an Exe Chamber on the rear. The FMEDA has considered the worst case scenario which includes the Exe Chamber on the rear.
  • Page 9 E-Mail: info@medc.co.uk Title: PROCEDURE/ REV`D MEDC Fax: +44 (0)1773 580282 DOCUMENT NO. Tel: +44 (0)1773 812249 DB3 TECHNICAL MANUAL DD036-0 Colliery Road Pinxton, Notts., NG16 6JF U.K. DB3 Sounder Selection of Proof Time Interval versus SIL % Contribution 0.02 0.018 0.016...
  • Page 10 E-Mail: info@medc.co.uk Title: PROCEDURE/ REV`D MEDC Fax: +44 (0)1773 580282 DOCUMENT NO. Tel: +44 (0)1773 812249 DB3 TECHNICAL MANUAL DD036-0 Colliery Road Pinxton, Notts., NG16 6JF U.K. EN54-3 Compliant Tones Data Minimum Volume dB(A) Horizontal Plane Vertical Plane Angle Max 58V...
  • Page 11 DOCUMENT NO. Tel: +44 (0)1773 812249 DB3 TECHNICAL MANUAL DD036-0 Colliery Road Pinxton, Notts., NG16 6JF U.K. Cooper MEDC Ltd, Unit B, Sutton Parkway, Oddicroft Lane, Sutton –In-Ashfield NG17 5FB, United Kingdom Tel: +44 (0)1623 444400 medc.sales@cooperindustries.com E-Mail Web: www.coopermedc.com MEDC Stock No.

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Db3l

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