User's Manual

Page EN-4 SITRANS LR 200 – QUICK START MANUAL 7ML19985QL81
mmmmm
English
• Avoid central locations on vessels
s.
Wiring
Power
Connecting SITRANS LR 200
1
• Use the 100 mm (4") shield on nozzles that are 100 mm (4") in length, or shorter.
• Use the 250 mm (10") shield on nozzles that are 250 mm (10") in length, or shorter.
WARNINGS:
dc terminals shall be supplied from an SELV source in accordance with
IEC-1010-1 Annex H.
All field wiring must have insulation suitable for rated input voltages.
Notes:
• For complete wiring instructions, please refer to the Instruction Manual.
• Use shielded, twisted pair cable (wire gauge 14-22).
• Separate cables and conduits
1
may be required to conform to standard instrumentation
wiring practices, or electrical codes.
1.
If cable is routed through conduit, use only approved suitable-size hubs for waterproof application.
preferred undesirable
Coni
Fl at
Flat Parabolic Conical
m
i
n. 300 mm
(
1
’)
f
or every
3 m (10’) of vessel height.
beam
angle
20
o
• locate the antenna away from the side wall, to
avoid interference from indirect echoes
• avoid interference from objects such as
ladders or pipes, which can cause false
reflections
minimum
100 mm (4")
To provide optimum signal conditions on a manhole cover, locate
the antenna off-center relative to the cover, typically 100 mm
(4”) from the side of the manhole
minimum
10 mm (0.4")
LR-200QS-EN.fm Page 4 Wednesday, March 12, 2003 3:51 PM