Intrinsically Safe Wiring - Siemens SITRANS LR250 Operating Instructions Manual

Connecting
5.3 Wiring setups for hazardous area installations
5.3.1

Intrinsically safe wiring

Device nameplate (ATEX/IECEX/INMETRO/RCM)
①
The ATEX certificate listed on the nameplate can be downloaded from our website:
Product page (http://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:
IECEx (http://iecex.iec.ch/)
Click on Certified Equipment then enter the certificate number IECEx SIR 05.0031X.
Device nameplate (FM/CSA)
①
Connection drawing number
The connection drawing number listed on the nameplate can be downloaded from our website:
Product page (http://www.siemens.com/LR250)
Go to Support > Installation Drawings > Level Measurement > SITRANS LR250.
● For power demands see Curve 1 (General Purpose, Intrinsically Safe, Non-Sparking, Non-
incendive) (Page 264).
● 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.
● Refer to Instructions specific to hazardous area installations (Page 48).
44
ATEX certificate
SITRANS LR250 (mA/HART)
Operating Instructions, 12/2015, A5E32220602-AD