Page 100 SITRANS Probe LU (HART) – OPERATING INSTRUCTIONS A5E32337695
G: Hazardous Installation
CSA Intrinsically Safe connection drawing
Note: Reference drawing 23650517 is available from the product page of our website
at: www.siemens.com/probelu.
Product Group
FOR INTERNAL
USE ONLY
2365051701
S. NGUYEN
PETERBOROUGH
17/DEC/03
ULTRASONICS
FOR APPROVAL
CHANGE Li VALUE TO 0.5 mH PER ECN 2004-0046
0
1
S. MILLIGAN
R. CLYSDALE
1:1
1
1
NTS
B
SITRANS Probe LU,
INTRINSICALLY SAFE
CONNECTION DRAWING
CSA
23650517
1
RPC
RPC
SN
SN
DEC
17/03
FEB
26/2004
NOTES:
1. ANY CSA CERTIFIED INTRINSICALLY SAFE BARRIER OR ASSOCIATED
APPARATUS WITH A LINEAR OUTPUT.
2.
APPROVED DUST-TIGHT AND WATER-TIGHT CONDUIT SEALS ARE REQUIRED
FOR CLASS II, DIV.1, GROUP G AND OUTDOOR TYPE 4X LOCATIONS
3. THE MAXIMUM VOLTAGE OF THE SAFE LOCATION APPARATUS
MUST NOT EXCEED 250 V rms.
4. INSTALLATION TO BE IN ACCORDANCE WITH THE CANADIAN ELECTRICAL CODE PART 1.
UNDER THE ENTITY EVALUATION CONCEPT, THE SITRANS Probe LU
HAS THE FOLLOWING INPUT PARAMETERS :
V = 30 VOLTS = 120 mA C = 3.6 nF L = 0.5 mH
P = 0.8 W OR (V x ) / 4 = 0.8 W
3.
max max i i
max max max
I
I
.
HAZARDOUS LOCATION
NON-HAZARDOUS LOCATION
SAFE AREA
APPARATUS
INTRINSICALLY SAFE BARRIER
(SEE NOTES1&2)
Load
4-20 mA
VV
OC
£
max
II
SC
£
max
CC+C
a
³
i cable
LL+L
a i cable
³
Substitution of components
may impair intrinsic safety.
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