Siemens SITRANS LR250 Guide De Mise En Service Rapide page 10

Flanged Versions
WARNING: The user is responsible for the selection of bolting and gasket materials
which will fall within the limits of the flange and its intended use, and which are
suitable for the service conditions.
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.
Wiring setups for hazardous area installations
• See
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.
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 cable, and
thread the wires through the gland.
2) Connect the wires to the terminal as shown: the polarity is identified on the terminal
block.
3) Ground the device according to local regulations.
4) Tighten the gland to form a good seal.
5) Close the lid before programming and device configuration.
1)
May be shipped with the device.
2)
If cable is routed through conduit, use only approved suitable-size hubs for waterproof applications.
Page EN-8 SITRANS LR250 (HART) – QUICK START MANUAL
plug (IP 68)
1) 2)
optional cable gland
2)
(or NPT cable entry )
1) 2)
on page 9.
2 2
to 2.5 mm ).
cable shield
(if used)
A5E31997170