Non-Sparking/Energy Limited Wiring - Siemens SITRANS LR200 Kurzanleitung

3) Calculate Rworking = Re-e + Rloop.
4) Determine the value of Vbarrier from the barrier data sheet (for example, voltage drops
due to diodes).
5) Calculate Vworking = Vsupply – Vbarrier.
Use the values for Vworking and Rworking to confirm that operation is within the shaded area
Curve 1: General Purpose, Intrinsically Safe, Non-Sparking/Energy Limited/ Non-
of the graph
incendive
on page 21.
Active barriers (repeating barriers)
Manufacturer
MTL
MTL
Siemens
Stahl
MTL
MTL

2. Non-Sparking/Energy Limited wiring

The ATEX certificate listed on the nameplate
can be downloaded from the product page of our website at: www.siemens.com/LR200.
Go to: Support > Approvals / Certificates.
• For power demands see
Energy Limited/ Non-incendive
• For wiring requirements follow local regulations.
3. Non-incendive wiring (FM US only)
FM Class 1, Div 2 connection drawing
number 23650537 can be downloaded from the product page of our website at:
www.siemens.com/LR200. Go to Support > Installation Drawings > Level Measurement >
Continuous - Radar.
• For power demands, see
Energy Limited/ Non-incendive
Page EN-10 SITRANS LR200 (HART) – QUICK START MANUAL
Part Number
706
7206
SITRANS I 7NG4122
9001/51-280-110-14
E02009
E02010
Curve 1: General Purpose, Intrinsically Safe, Non-Sparking/
on page 21.
Curve 1: General Purpose, Intrinsically Safe, Non-Sparking/
on page 21.
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