Installation
1.3
Figure 1.3 - Dimensional Drawing and Mounting Positions
WARNING
HAZARDOUS AREAS
In hazardous areas with explosion proof requirements, the covers must be tightened with at least 8 turns. In
order to avoid the penetration moisture or corrosive gases, tighten the O’ring until feeling the O'ring touching
the housing. Then, tighten more 1/3 turn (120
°
) to guarantee the sealing. Lock the covers using the locking
screw.
In hazardous zones with intrinsically safe or non-incentive requirements, the circuit entity parameters and
applicable installation procedures must be observed.
Cable access to wiring connections is obtained by the two conduit outlets. Conduit threads should be sealed
by means of code-approved sealing methods. The unused outlet connection should be plugged and sealed
accordingly.
Should other certifications be necessary, refer to the certification or specific standard for installation
limitations.
Topology and Network Configuration
Bus topology (See Figure 1.4 - Bus Topology) and tree topology (See Figure 1.5 - Tree Topology)
are supported. Both types have a trunk cable with two terminations. The devices are connected to
the trunk via spurs. The spurs may be integrated in the device giving zero spur length. A spur may
connect more than one device, depending on the length. Active couplers may be used to extend
spur length.
Active repeaters may be used to extend the trunk length.
The total cable length, including spurs, between any two devices in the Fieldbus should not exceed
1900m.
The connection of couplers should be kept less than 15 per 250m. In folowing figures DP/PA link
depends on the application needs.