Page EN-8
SITRANS LR460 – QUICK START MANUAL
A5E32007360
mmmmm
English
6. Replace the enclosure cover and hand tighten it. The sealing ring must be clean and
undamaged.
7.
Tighten the screw on the cover lock.
8. Connect the external earth terminal located between the cable glands to a ground
connection at your vessel. Use a cable with a cross-section of 2.5 mm
2
or greater.
9. Return
to
SITRANS LR460 HART wiring
on page 7 to complete LR460 set up.
SITRANS LR460 PROFIBUS PA wiring
(continued from
Connecting SITRANS LR460
on page 6)
Power Demands
To determine how many devices can be connected to a bus line, calculate the combined
maximum current consumption of all the connected devices: 10.5 mA for SITRANS LR460.
Allow a current reserve for safety.
Bus Termination
PROFIBUS PA MUST be terminated at both extreme ends of the cable for it to work properly.
Please refer to the PROFIBUS PA User and Installation Guidelines (order number 2.092),
available from www.profibus.com.
Install in accordance with
PROFIBUS PA User and Installation Guidelines
(order number 2.092),
available from www.profibus.com.
Note:
PROFIBUS PA is not polarity-sensitive.
DC version
earth
terminal
cable clamp
AC version
earth
terminal
cable clamp