Siemens SITRANS LR - Wiring Drawing: Intrinsically Safe (FM )

Page A-2 SITRANS Probe LR – QUICK START MANUAL A5E32106153
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A: Connection Drawings
Wiring Drawing: Intrinsically Safe (FM )
Note: Reference drawing 23651611 is available from the SITRANS Probe LR product page of
our website at: https://pia.khe.siemens.com/index.asp?Nr=11158
.
Product Group
2365161102
IVZ PETERBOROUGH 26/FEB./03 RADAR
FOR APPROVAL
ADD CSA/FM NOTE1, ADD NOTES 5, 6 AND 7, ADD VALUES IN NOTE 4 PER ECN 2003-0167
ADD NOTE 8 PER ECN 2003-0348
0 1 2
T. ADAM BPS
1:1
1
1
NTS
B
SITRANS LR 200, INTRINSICALLY SAFE CONNECTION DIAGRAM
23651611
2
BPS RPC
RPC
IVZ SN
SN
FEB
26/03
APRIL
29/03
NOV
07/2003
NOTES: 1. ANY CSA / FM INTRINSICALLY SAFE BARRIER / POWER SUPPLY, WITH ITS OUTPUT
VOLTAGE (Uo) NOT EXCEEDING 30 V AND ITS OUTPUT CURRENT (Io) LIMITED BY LOAD RESISTANCE (Ro); SUCH THAT Io = Uo / Ro, DOES NOT EXCEED 120 mA
2. APPROVED DUST-TIGHT AND WATER-TIGHT CONDUIT SEALS ARE REQUIRED
FOR CLASS II, DIV.1, Gr. E, F, G AND OUTDOOR NEMA 4X/TYPE 4X LOCATIONS
3. THE MAXIMUM VOLTAGE OF THE NON-INTRINSICALLY SAFE APPARATUS
MUST NOT EXCEED 250 V rms.
4. UNDER THE ENTITY EVALUATION CONCEPT, THE LR 200 HAS THE
FOLLOWING:
Ui = 30 VOLTS D.C. Ii = 120 mA Pi = 0.8W Ci = 3.6 nF Li = 0.1 mH
5. SUBSTITUTION OF COMPONENTS MAY IMPAIR INTRINSIC SAFETY. 6. INSTALL PER NEC / CEC 7. USE SUPPLY WIRES RATED FOR 10 ° ABOVE. 8. EXTERNAL BONDING HUBS ARE REQUIRED WHEN BOTH CONDUIT ENTRIES ARE USED.
THE ENTITY EVALUATION CONCEPT IS A METHOD USED TO DETERMINE
ACCEPTABLE COMBINATIONS OF INTRINSICALLY SAFE APPARATUS AND
CONNECTED ASSOCIATED APPARATUS THAT HAVE NOT BEEN INVESTIGATED IN SUCH COMBINATION.
HAZARDOUS AREA
NON-HAZARDOUS AREA
SAFE AREA APPARATUS
INTRINSICALLY SAFE
(SEE NOTE 1)
Load
4–20mA
ENTITY CONCEPT DEFINITION: THE ENTITY CONCEPT ALLOWS THE INTERCONNECTIONS OF INTRINSICALLY SAFE APPARATUS TO ASSOCIATED APPARATUS NOT SPECIFICALLY EXAMINED IN SUCH COMBINATIONS. THE CRITERIA FOR INTERCONNECTION IS THAT THE VOLTAGE AND CURRENT WITH INTRINSICALLY SAFE APPARATUS CAN RECEIVE AND REMAIN INTRINSICALLY SAFE, CONSIDERING FAULTS, MUST BE EQUAL OR GREATER THAN THE VOLTAGE (Uo) AND CURRENT (Io) LEVELS WHICH CAN BE DELIVERED BY THE ASSOCIATED APPARATUS, CONSIDERING FAULTS AND APPLICABLE FACTORS. IN ADDITION, THE MAX. UNPROTECTED CAPACITANCE (Ci) AND INDUCTANCE (Li) OF THE INTRINSICALLY SAFE APPARATUS, INCL. INTERCONNECTING WIRING, MUST BE EQUAL OR LESS THAN THE CAPACITANCE AND INDUCTANCE WHICH CAN BE SAFELY CONNECTED TO THE ASSOCIATED APPARATUS.