Emerson 308014EN Manuel D’Utilisation
8-1
Rosemount Tank Radar REX
Chapter 8 Junction Boxes
Installation Manual
308014EN, Edition 4
May 2013
May 2013
8.
Junction Boxes
As optional equipment, a series of junction boxes can be delivered with
the TankRadar Rex system. They are used to connect the various
system units.
system units.
Figure 8-1.
Overview of the different junction boxes in a
TankRadar Rex system.
TankRadar Rex system.
8.1
Integrated Junction Box, JBi
8.1.1
Explosion Approval
The integrated junction box is designed for increased safety classified
according to EEx e [ia] IIC T6. There is one EExe side for mains, bus
cables and relay outputs. The EExi side is for intrinsically safe
connections.
according to EEx e [ia] IIC T6. There is one EExe side for mains, bus
cables and relay outputs. The EExi side is for intrinsically safe
connections.
system_JB
Temp.
Sensor
Temp.
Sensor
DAU
RTG
JB
JB
JB
Field
Bus
Modem
TankMaster PC
workstations in
network
FCU
Alternative connections
to DCS
EEx e
(section 8.2)
JB 36/42
(section 8.3)
RTG with JBi
(section 8.1)