Connecting Sitrans Lr250 - Siemens SINTRANS LR25 Guia De Inicio Rapido

Wiring
Power
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.

Connecting SITRANS LR250

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
For detailed wiring instructions refer to the full LR250 FF Operating Instructions.
Note:
Use a 2 mm Allen key to
loosen the lid-lock set
screw.
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
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) Tighten the gland to form a good seal.
5) Close the lid and secure the locking ring before programming and instrument
configuration.
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.
7ML19985XN82
plug (IP 68)
2) 3)
optional cable gland
3)
(or NPT cable entry )
SITRANS LR250 (FF) – QUICK START MANUAL
1) 2)
on page 9.
3)
.
4)
device shield
1)
connection
cable shield
external
ground lug
(continued on next page)
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