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MEDC HORN DB3 Technical Manual

Medcenter systems marine safety devices user manual
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See also: Technical Manual
Technical Manual for the
Horn – DB3
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.
© MEDC 2001
06/01

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Summary of Contents for MEDC HORN DB3

  • Page 1 Technical Manual for the Horn – DB3 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

    1. INTRODUCTION These horn units have been designed for use in harsh environmental conditions. 2. INSTALLATION General When installing and operating explosion-protected electrical equipment, require- ments for selection, installation and operation should be referred to eg. IEC 60079-14 worldwide and the ‘National Electrical Code’ in North America. Additional national and/or local requirements may apply.

  • Page 3: General Arrangement

    All cable glands should be of an equivalent NEMA/IP rating to that of the unit and integrated with the unit such that this rating is maintained. Once termination is complete, carefully push the cover back onto the unit, avoid- ing damage to the mating surfaces. Tighten the 6 off cover screws evenly, to ensure maintenance of the required gap between the cover and enclosure.
  • Page 4 TONE FREQ/DESCRIPTION Alt Tones 800/970 Hz at 1/4 sec Sweeping 800/970 Hz at 7Hz Sweeping 800/970 Hz at 1 Hz Continuous at 2850 Hz Sweeping 2400-2850 Hz at 7 Hz Sweeping 2400-2850 Hz at 1 Hz Slow Whoop Sweep 1200-500 Hz at 1 Hz Alt Tones 2400/2850 Hz at 2 Hz Int Tone of 970 Hz at 1 Hz Alt Tones 800/970 Hz at 7/8 Hz...

  • Page 5: Maintenance

    4. MAINTENANCE During the working life of the unit, little or no maintenance is required. However, if abnormal or unusual environmental conditions occur due to plant damage or accident etc., then visual inspection is recommended. If a fault should occur, it is recommended that the unit be returned to MEDC for repair.
  • Page 6 06/01 © MEDC 2001...
  • Page 7 © MEDC 2001 06/01...
  • Page 8 MEDC Ltd, Colliery Road, Pinxton, Nottingham NG16 6JF, UK. Tel: +44 (0)1773 864100 Fax: +44 (0)1773 582800 Sales Enq. Fax: +44 (0)1773 582830 Sales Orders Fax: +44 (0)1773 582832 MEDC Stock No. E-mail: sales@medc.com Web: www.medc.com TM106-ISSB...

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