7ML19985XN82
SITRANS LR250 (FF) – QUICK START MANUAL
Page EN-11
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1.Intrinsically Safe wiring
• 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
on page 13.
Under the entity evaluation concept, SITRANS LR250 has the following characteristics:
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.
(input voltage) U
i
= 24 V
(input current) I
i
=
250
mA
(input power) P
i
= 1.2 W
(internal capacitance) Ci
= 0
(internal inductance) Li
= 0
1 G D EEx ia IIC T4
Ex tD A20 IP67 T90 °C
II
SIRA 09ATEX2353X
Fisco:
Ui = 17.5 V
Ii = 380 mA
Pi = 5.32 W
Ci = 0 nF
Li = 0 mH
Entity:
Ui = 24 V
Ii = 250 mA
Pi = 1.2 W
Ci = 0 nF
Li = 0 mH
IECEx SIR 09.0148X
Ex ia IIC T4
Ex tD A20 IP67 T90 °C
0518
SITRANS LR250
Made in Canada
Siemens Milltronics Process Instruments Inc., Peterborough
7MLxxxx-xxxxx-xxxx
Encl.: NEMA / TYPE 4X, 6, IP67, IP68
Amb.Temp.: – 40 °C to 80 °C
Power Rating: 32 V
Max., 20 mA
Serial No: GYZ / A1034567
s
FOUNDATION FIELDBUS
The ATEX certificates listed on the nameplate
can be downloaded from the product page of our website at:
www.siemens.com/LR250. Go to More Info > Certificates.
Device nameplate (ATEX/IECEx/C-TICK)
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 09.0148X.
Exia per drawing: A5E02358161
R
Fisco:
Ui = 17.5 V
Ii = 380 mA
Pi = 5.32 W
Ci = 0 nF
Li = 0 mH
Entity:
Ui = 24 V
Ii = 250 mA
Pi = 1.2 W
Ci = 0 nF
Li = 0 mH
Class I, Div 1, Gr. A, B,C, D
Class II, Div 1, Gr. E, F, G
Class III T4
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions 1)This device may not cause harmful interference and 2)This device must accept
any interference received, including interference that may cause undesired operation
IC: 267P-LR250
FCC ID: NJA-LR250
SITRANS LR250
Made in Canada
Siemens Milltronics Process Instruments Inc., Peterborough
7MLxxxx-xxxxx-xxxx
Encl.: NEMA / TYPE 4X, 6, IP67, IP68
Amb.Temp.: – 40 °C to 80 °C
Power Rating: 32 V
Max., 20 mA
Serial No: GYZ / A1034567
s
FOUNDATION FIELDBUS
The FM/CSA Intrinsically Safe connection drawing
number A5E02358161 can be downloaded from the product page of our website at:
www.siemens.com/LR250.
Go to More Info > Installation Drawings > Level Measurement > SITRANS LR250.
Device nameplate (FM/CSA)
