Wiring; Power; Connecting Sitrans Lr250 - Siemens SITRANS LR250 Instruction Manual

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 nameplate on your instrument, to verify the approval rating.
• Use appropriate conduit seals to maintain IP or NEMA rating.
Instructions specific to hazardous area installations
• Read
Notes:
• Use twisted pair cable: AWG 22 to 14 (0.34 mm
• Separate cables and conduits may be required to conform to standard
instrumentation wiring practices or electrical codes.
1
cable gland
(or NPT cable entry)
1.
Depending on the approval rating, glands and plugs may be supplied with your
instrument.
Page 24 SITRANS LR250 (HART) – INSTRUCTION MANUAL
Use a 2 mm Allen key to loosen the lid-lock set screw.
Unscrew the cover for access to the terminals. Use a
screwdriver for added leverage, if necessary.
1
plug
1
2 2
to 2.5 mm ).
If you want to rotate the enclosure, use the 2 mm
Allen key to loosen the locking ring.
on page 31.
locking ring
threaded connection
7ML19985JE01