MEDC DB12 Sounder User Manual

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GENERAL ARRANGEMENT

3. OPERATION

The unit is initiated directly from the power source.

For all versions, a 5-way DIL switch selects the tone required from the list shown.

The DB12P unit can only be switched between any of the two tones listed by
either:-

• Reversing the polarity of the power supply, or

• By a wire common +ve system, switching between the two –ve lines.

4. MAINTENANCE

During the working life of the sounder, 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 fault should occur, it is recommmended that the unit be returned to MEDC for
repair. All parts are replaceable.

If you have acquired a significant quantity of units, it is recommended that spares
are also made available. Please discuss your requirements with the Technical
Sales Engineers at MEDC.

5. OPERATING TEMPERATURE

–40

C to +55

–40

F to +131

This manual is related to the following products:

DB12