Emerson Rosemount 5900S Series, Reference Manual

Page: 83 / 298

Figure 3-22: Example of a Non-I.S. F
OUNDATION
Fieldbus System
$
% &
'
( *
)
+
,
A. Non-I.S. Power Supply
B. SAFE AREA
C. HAZARDOUS AREA
D. Barrier
E. IS Trunk
F. Rosemount 2230 Display
G. Segment Coupler
H. Rosemount 644 Temperature Transmitter
I. Rosemount 5900S Radar Level Gauge
3.4.10 Wiring
To connect the Rosemount 5900S level gauge:
Procedure
1. Ensure that the power supply is switched off.
2. Remove the cover on the terminal compartment.
3. Run the wires through the appropriate cable gland/conduits. Install cables with a
drip loop in such a way that the lower part of the loop is under the cable/conduit
entry.
4. Connect wires as described in Terminal blocks .
5. Ensure that the positive lead is connected to the terminal marked FB+ and the
negative lead to the terminal marked FB-.
6. Use metal plugs to seal unused ports.
7.
The cover on the terminal compartment should be tightened to mechanical stop
(metal to metal). Make sure the cover is fully engaged to meet explosion-proof
requirements and to prevent water from entering the terminal compartment.
8. Tighten the cable gland/conduit. Note that adapters are required for M20 glands.
Note
Ensure that O-rings and seats are in good condition prior to mounting the cover in
order to maintain the specified level of ingress protection. The same requirements
Reference Manual Installation
00809-0100-5900 September 2019
Rosemount 5900S Radar Level Gauge 83