User's Manual

Page 24 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE03
mmmmm
Wiring
Wiring
Power
Connecting
SITRANS LR250
1) 2)
1) Strip the cable jacket for approximately 70 mm (2.75") from the end of the cable, and
thread the wires through the gland
2)
.
2) Connect the wires to the terminals as shown: the polarity is identified on the
terminal block.
3) Ground the instrument according to local regulations.
4) Tighten the gland to form a good seal.
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 25.
Notes:
• Use twisted pair cable: AWG 22 to 14 (0.34 mm
2
to 2.5 mm
2
).
• Separate cables and conduits may be required to conform to standard
instrumentation wiring practices or electrical codes.
1)
May be shipped with the device.
2)
If cable is routed through conduit, use only approved suitable-size hubs for
waterproof applications.
Use a 2 mm Allen key to
loosen the lid-lock set
screw.
optional cable gland
1) 2)
(or NPT cable entry
2)
)
plug (IP 68)
cable shield
(if used)