Page 18 SITRANS LR250 (PROFIBUS PA) – INSTRUCTION MANUAL 7ML19985JF02
mmmmm
Wirng
Wiring
Power
Connecting SITRANS LR250
1)
1. Strip the cable jacket for approximately 70 mm (2.75") from the end of the PROFIBUS
PA cable, and thread the wires through the gland
2)
.
2. Connect the wires to the terminals as shown below. (SITRANS LR250 is not polarity
sensitive.)
3. Ground the instrument according to local regulations.
3)
WARNINGS:
The DC input terminals shall be supplied from a source providing
electrical isolation between the input and output, in order to
meet the applicable safety requirements of IEC 61010-1.
All field wiring must have insulation suitable for rated voltages.
WARNINGS:
• Check the nameplate on your instrument, to verify the approval rating.
• Use appropriate conduit seals to maintain IP or NEMA rating.
• See
Wiring Setups for hazardous area installations
on page 19.
1)
May be shipped with the device.
2)
If cable is routed through conduit, use only approved suitable-size hubs for
waterproof applications.
3)
The instrument shield connection is internally connected to the external ground
lug.
Use a 2 mm Allen key to
loosen the lid-lock set
screw.
instrument
shield
connection
3)
external
ground lug
cable
shield
optional cable gland
1)
2)
(or NPT cable entry
2)
)
plug (IP 68)
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