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Note
Please read this manual carefully before installing the sounder.
Application
The EEx Sounder dHE is a signalling device that generates various signalling tones and
signalling tone sequences and emits them at a high sound pressure level. The user may
choose between 31 preset signalling tone groups and one programmable one. Every
signalling tone group contains 4 different signalling tones. Wire the control inputs with
floating contacts or jumpers in order to chose any one of these 4 signalling tones. The
sounder has 8 volume levels. All outer fastening parts are made of non-corrosive materials.
The stable, all-plastic housing conforms to protection degree IP 66, which means the
sounder can be installed both indoors and outdoors. Explosion category II 2 G EEx dem
IIC T6 allows the sounder to be operated in hazardous areas of zones 1 and 2.
Setting the volume and the signalling tone groups prior to mounting the sounder
The sounder ships with the following setting:
Sound pressure:
maximum
Signalling tone group:
Group0:
continuous tone 1000 Hz; sweeping tone 1200 Hz / 500 Hz;
intermittent tone 1000 Hz
Selected signalling tone: continuous tone 1000 Hz
If you want other signalling tones and volume levels, please follow the instructions below.
To set the sound pressure level and the signalling tone groups, open the sounder housing.
To do this you have to place the sounder on a level surface, the loudspeaker opening facing
upwards. Loosen the 8 housing screws and lift the upper part of the housing slightly. Detach
the connecting cable running from the loudspeaker to the circuit board at the circuit board
and put the loudspeaker part aside. In the bottom part of the housing, on the circuit board,
you will find the controls and an LED that are required to set the signalling tone groups.
