7ML19985XN82
SITRANS LR250 (FF) – QUICK START MANUAL
Page EN-7
mm
mm
m
Eng
lis
h
Wiring
Power
Connecting
SITRANS LR250
1)
2)
1)
Strip the cable jacket for approximately 70 mm (2.75") from the end of the Foundation
Fieldbus cable, and thread the wires through the gland
3)
.
2) Connect the wires to the terminal as shown (SITRANS LR250 FF is not polarity sensitive).
3) Ground the instrument according to local regulations.
4)
4) Tighten the gland to form a good seal.
5) Close the lid and secure the locking ring before programming and instrument
configuration.
(continued on next page)
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 device nameplate to verify the approval rating.
• Use appropriate conduit seals to maintain IP or NEMA rating.
• See
Wiring Setups for hazardous area installations
on page 9.
Note:
For detailed wiring instructions refer to the full LR250 FF Operating Instructions.
1)
The device shield connection is internally connected to the external ground lug.
2)
May be shipped with the instrument.
3)
If cable is routed through conduit, use only approved suitable-size hubs for waterproof applications.
4)
For optimum EMC protection, it is recommended that the FF H1 cable shield be connected to ground at
every node.
cable shield
device shield
connection
1)
external
ground lug
plug (IP 68)
optional cable gland
2)
3)
(or NPT cable entry
3)
)
Use a 2 mm Allen key to
loosen the lid-lock set
screw.
