MEDC DB4B, Техническое руководство

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DB4B Ex d WIRING WITH OPTIONAL CAP AND/OR
PPTC
DB4B Ex de WIRING WITH OPTIONAL CAP AND/OR
PPTC
Ex d units:
Connect 100V line connections to terminals marked ‘line’ on PCB, looping-out as required. Use supplied flying lead
along with common loop-in, loop-out connections to select required power level (see section 4 for tapping table)
Ex de units:
Connect 100V line connections to terminals 1 and 2 (loop-in, loop-out). If loop-in, loop-out functionality is required,
the two common leads must be joined together using a single crimped bootlace ferrule. Use the supplied flying lead
along with the common lead to select required power level (see section 4 for tapping table)
4.0 OPERATION
The line voltage and power rating of the unit is stated on the unit label. The speaker is available in 3 standard
power ratings from 8 watts to 25 watts and in Ex d or Ex de versions. Different sound levels can be obtained by
selecting the transformer tappings in the unit. See table below for details.
Alternatively if requested when ordered, the unit can be supplied with a direct 8Ohm connection to the driver for
connecting to a suitable audio source.
Power (W)
Transformer
Tappings
25W 15W 8W
1:2 25.0 15.0 8.0
2:3 12.5 7.5 4.0
3:4 6.0 5.0 2.0
1:3 4.0 4.0 1.5
2:4 2.0 2.0 0.7
1:4 1.0 0.8 0.4
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© Eaton MEDC Ltd 2017 06/17