Plc Configuration With Profibus Pa For Hazardous Areas; Intrinsically Safe Wiring - Siemens Sitrans LR250 Operating Instructions Manual

PLC configuration with PROFIBUS PA for hazardous areas

PLC (active)
Non-hazardous Area
Hazardous Area
Zone 0, 1,
or 2

1. Intrinsically Safe wiring

Device nameplate (ATEX/IECEx/INMETRO/C-TICK)
The ATEX and INMETRO certificates listed on the nameplate
can be downloaded from the product page of our website at:
www.siemens.com/LR250. Go to Support > Approvals / Certificates.
The IECEx certificate listed on the nameplate can be viewed on the IECEx website.
Go to: http://iecex.iec.ch > Ex Equipment Certificates of Conformity and enter the
certificate number IECEx SIR 05.0031X.
Device nameplate (FM/CSA)
The FM/CSA Intrinsically Safe connection drawing
number 23650675 can be downloaded from the product page of our website at:
www.siemens.com/LR250. Go to Support > Installation Drawings > Level
Measurement > Continuous - Radar.
• For wiring requirements: follow local regulations.
• Approved dust-tight and water-tight conduit seals are required for outdoor
NEMA 4X / type 4X / NEMA 6, IP67, IP68 locations.
Instructions specific to hazardous area installations
• Refer to
Page 26 SITRANS LR250 (PROFIBUS PA) – OPERATING INSTRUCTIONS
EEx ia device
PDM
EEx ia type DP/
PA coupler
EEx ia device EEx ia device
on page 29.
7ML19985JF04