Siemens SITRANS LR200 Kurzanleitung Seite 20

Intrinsically Safe Model
Under the entity evaluation concept, SITRANS LR200 has the following characteristics:
(input voltage) U
i
(input current) I
i
(input power) P
i
(internal capacitance) Ci
(internal inductance) Li
Entity Concept:
The Entity Concept allows interconnection of intrinsically safe apparatus to associated
apparatus not specifically examined in such combination. The criteria for interconnection is
that the voltage and current which intrinsically safe apparatus can receive and remain
intrinsically safe, considering faults, must be equal to or greater than the output voltage (Uo)
and output current (Io) levels which can be delivered by the associated apparatus, considering
faults and applicable factors. In addition, the maximum unprotected capacitance (Ci) and
Inductance (Li) of the intrinsically safe apparatus, including interconnecting wiring, must be
equal to or less than the capacitance and inductance which can be safely connected to
associated apparatus.
FISCO Concept
Connecting PROFIBUS PA: typical PLC configuration
Note: See
Under the FISCO evaluation concept, SITRANS LR200 has the following characteristics:
(input voltage) U
i
(input current) I
i
(input power) P
i
(internal capacitance) Ci
(internal inductance) Li
For complete details and instructions regarding the FISCO Concept, see
Note:
Intrinsically Safe Connection Drawing number A5E01003040
Connection Drawing number A5E01003039
of our website at: www.siemens.com/LR200.
7ML19985XD81 SITRANS LR200 (PROFIBUS PA) – QUICK START MANUAL
= 24 V
= 250 mA
= 1.2 W
= 0
= 0
on page 8 for an illustration.
= 17.5 V
= 380 mA
= 5.32 W
= 0
= 0
CSA Intrinsically Safe
or
, which can be downloaded from the product page
FM
Page EN-19