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60 Rev. G Nov/2015 MI3
The Ex Power Supply is specified as follows:
Power supply 115 / 230 VAC, 50/60 Hz, 0.1 A, internal fuse 0.25 A (nonexchangeable)
Operating temperature -10 to 65°C (14 to 149°F)
Storage temperature -20 to 85°C (-4 to 185°F)
Rating IP65
Material Aluminum, die casted
Figure 41: Dimensions of Housing for Ex Power Supply
For further information to relevant standards and the examination certificate, see ATEX Certificate of
Conformity for Ex Power Supply, page 135 or IECEx Certificate of Conformity for Power Supply,
page 142.
9.2.3 Installation
The basic installation of sensing heads and the Ex Power Supply is shown in the following figure.
115 / 230 VAC is selected by switch. Before installation please check lokal mains voltage to avoid damage!
Figure 42: Basic Installation in the Explosion Critical Area
In areas with explosive environments, only intrinsically safe sensing heads must be
used!
The total sensing head cable length for all networked sensing heads must not exceed
30 m (98 ft)!
Total sensing head cable length:
max. 30 m (98 ft)
max. torque 3 Nm (2.2 lbf ft)
100 to 127 VAC
200 to 240 VAC