!
3.0 OPERATION
The operating voltage of the unit is stated on the label.
There are no exposed parts of the apparatus which produce excessive surface temperature, infrared,
electro- magnetic, ionising radiation or non-electrical dangers.
Information regarding tone selection and installation is contained within each unit supplied.
The unit is fitted with a volume control which is situated adjacent to the tone selection switches. Maximum
volume is obtained when this control is turned fully clockwise.
The product has been designed such that the protection afforded will not be reduced due to the corrosion
of materials, electrical conductivity, impact strength, ageing resistance and the effects of temperature
variation.
4.0
Safety Parameters
The following parameters shall be taken into account during interconnection of the system:
24V unit
Ui
28V
Ii
150mA
Ci
Negligible
Li
20mH
Li/Ri
20uH/
!
Note – The DB5 sounder has internal resistance that limits the input current to a nominal 28mA when
connected to a 28V source. With an Ii of 150mA and In=28mA, this allows five (5) DB5 sounders to be
connected in Parallel.
© MEDC 2017
01/17
Summary of Contents for DB5M
Page 2: ...01 17 MEDC 2017...
