Operation; Maintenance - MEDC DB16 Betriebsanleitung

All cable glands should be of an equivalent NEMA/IP rating to that of the speaker and integrated with the unit
such that this rating is maintained.
The internal earth terminal, where fitted, must be used for the equipment grounding connection and the external
terminal is for a supplementary bonding connection where local codes or authorities permit or require such a
connection.
Once termination is complete, replace the cover. Replace the 3 off M5screws into the holes in the cover assembly
and tighten evenly. Ensure the cover seal is correctly seated in its groove during re-assembly.

3. OPERATION

The operating voltage of the unit is stated on the unit label.
Different sound levels can be obtained by selecting the transformer tappings in the unit (see table below):
TRANSFORMER
TRAPPINGS
1:2
2:3
3:4
1:3
2:4
1:4

4. MAINTENANCE

During the working life of the unit, it should require little or no maintenance. However, if abnormal or unusual
environmental conditions occur due to plant damage or accident etc., then visual inspection is recommended.
If a unit fault should occur, then the unit can be repaired by MEDC. All parts of the unit are replaceable.
If you acquired a significant quantity of units, then it is recommended that spares are also made available.
Please discuss your requirements with the Technical Sales Engineers at MEDC.
5. SPECIAL CONDITIONS FOR SAFE USE:
1. Not more than one single or multiple strand lead shall be connected into either side of any terminal unless
multiple conductors have been joined in a suitable manner, e.g. two conductors into a single insulated crimped
boot lace ferrule.
2. Leads connected to the terminals should be sufficiently insulated for 100V and this insulation should be
extended to within 1mm of the terminal throat.
3. Ensure all terminal screws, used and unused, are fully tightened down.
6. CERTIFICATION/APPROVALS
Certified to EN50014:1997 + Amds 1 & 2, EN50018:1994, EN50019:1994 & EN50281-1-1:1998
1. IIB Unit
ATEX Certificate No.
Baseefa04ATEX0166X; 30W - EEx de IIB T3 (Tamb -50°C to +40°C).
The ATEX certificate and the product label carry the ATEX group and category marking:
II 2 G
Where:
signifies compliance with ATEX
01/09
POWER
30W VERSION 25W VERSION
30W
25W
12W
6W
4W
2W
25W - EEX de IIB T3 (Tamb -50°C to +65°C).
EEX de IIB T4 (Tamb -50°C to +0°C).
25W
12.5W
6W
4W
2W
1W
© MEDC 2003