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5. DUST-TIGHT CONDUIT SEAL MUST BE USED WHEN INSTALLED IN CLASS II AND CLASS III ENVIRONMENTS.
6. RESISTANCE BETWEEN INTRINSICALLY SAFE GROUND AND EARTH GROUND MUST BE LESS THAN 1.0 Ohm.
10. THE ASSOCIATED APPARATUS MUST BE FM APPROVED.
1. ANY SHUNT ZENER DIODE SAFETY BARRIER APPROVED BY FM HAVING THE FOLLOWING OUTPUT PARAMETERS:
S
U
P
PLY/
SIGNA
L TERM
INALS
TB1-15,
16
Voc OR Vt NOT GREATER THAN 30 V
Isc OR It NOT GREATER THAN 200 mA
Pmax NOT GREATER THAN 0.9 W
2. INTRINSICALLY SAFE APPARATUS (MODEL 5081-C-HT, IRC TRANSMITTER AND MODEL 275/375/475) AND
ASSOCIATED APPARATUS (SAFETY BARRIER) SHALL MEET THE FOLLOWING REQUIREMENTS:
THE VOLTAGE (Vmax) AND CURRENT (Imax) OF THE INTRINSICALLY SAFE APPARATUS MUST BE EQUAL TO OR
GREATER THAN THE VOLTAGE (Voc OR Vt) AND CURRENT (Isc OR It) WHICH CAN BE DELIVERED BY THE
ASSOCIATED APPARATUS (SAFETY BARRIER). IN ADDITION, THE MAXIMUM UNPROTECTED CAPACITANCE (Ci)
AND INDUCTANCE (Li) OF THE INTRINSICALLY SAFE APPARATUS, INCLUDING INTERCONNECTING WIRING,
MUST BE EQUAL OR LESS THAN THE CAPACITANCE (Ca) AND INDUCTANCE (La) WHICH CAN BE SAFELY
CONNECTED TO THE APPARATUS. (REF. TABLES I, II AND III). THE CAPACITANCE AND INDUCTANCE OF THE
LOAD CONNECTED TO THE SENSOR TERMINALS MUST NOT EXCEED THE VALUES SPECIFIED IN TABLE I.
8. ASSOCIATED APPARATUS MANUFACTURER'S
INSTALLATION DRAWING MUST BE FOLLOWED
WHEN INSTALLING THIS EQUIPMENT.
7. THE ENTITY CONCEPT ALLOWS INTERCONNECTION OF INTRINSICALLY
SAFE APPARATUS WITH ASSOCIATED APPARATUS WHEN THE FOLLOWING IS TRUE:
F
IE
LD
DEV
ICE
INP
U
T
A
S
S
O
C
IATED A
P
PARATUS OU
TPU
T
Vmax OR Ui > Voc, Vt OR Uo
Imax OR Ii >
Isc, It OR Io
Pmax OR Pi >
Po
Ci+ Ccable <
Ca, Ct OR Co
Li+ Lcable <
La, Lt OR Lo
11. NO REVISION TO DRAWING WITHOUT PRIOR FM APPROVAL.
9. CONTROL EQUIPMENT CONNECTED TO ASSOCIATED APPARATUS MUST NOT USE OR
GENERATE MORE THAN 250 Vrms OR Vdc.
DIVISION 2
HAZAR
D
OUS AREA
INFRARED REMOTE CONTROL
UNIT (RMT PN 23572-00) FOR
USE IN CLASS I AREA ONLY
16
15
1
4
13
12
11
10
9
8
7
6
5
4
3
21
U
NCLASSIFIE
D
AREA
MODEL
5081-C-HT
XMTR
UNSPECIFIED
POWER SUPPLY
30 VDC MAX
24 V TYP
16
15
1
4
13
12
11
10
9
8
7
6
5
4
3
2
1
TO PREVENT IGNITION OF FLAMMABLE OR COMBUSTIBLE ATMOSPHERES,
DISCONNECT POWER BEFORE SERVICING.
NO
N-INCENDIVE
F
IE
LD
W
IRING
C
O
NNE
C
T
IO
NS
F
O
R CLASS
1,
DIVISION
2,
G
RO
UP
S
A
B
C
D
H
A
Z
AR
D
O
U
S A
R
EA
WARNING-
WARNING-
SUBSTITUTION OF COMPONENTS MAY IMPAIR INTRINSIC SAFETY OR
SUITABILITY FOR DIVISION 2.
13
14
12 13
UNCLASSIFIED AREA
D2
12 DIVISION 2 WIRING METHOD PER THE NEC (EXCLUDING NONINCENDIVE FIELD WIRING).
13 INSTALATION TO BE IN ACCORDANCE WITH THE NATIONAL ELECTRICAL CODE.
D1
OUTPUT
PARAMETERS
It
Vt
TABLE II
MODEL 5081-C-HT
TB1 - 1 THRU 12
Ci (µF)
Li (mH)
30 300
1.0
MODEL NO.
275
Voc max OUT: Vdc
Isc max OUT:mA
ENTITY PARAMETERS: REMOTE TRANSMITTER INTERFACE
1.7
32
.07
0.0
6.51 Vdc
Pt
Imax (mA)
Pmax (W)
Ci (nF)
Li (mH)
Vmax (Vdc)
0.9
0.0
MODEL NO.
TABLE III
27.8
5081-C-HT
280 mA
442 mW
30
200
A, B
0.5
2.0
3.7
D
C
Ca
(
µF)
La
(mH)
12.05
9990.05
OUTPUT PARAMETERS
TABLE I
GAS
GROUPS
490.05
ROSEMOUNT MODEL
275/375/475 HART
COMMUNICATOR REMOTE
TRANMITTER INTERFACE FOR
USE IN CLASS I AREA ONLY
(SEE NOTE 2 AND TABLE III)
CONDUCTIVITY
SENSOR
(SEE NOTE 4)
LOAD
SAFETY BARRIER
(SEE NOTE 1 AND 7)
MODEL
5081-C-HT
XMTR
5081-C-HT ENTITY PARAMETERS
SUPPLY / SIGNAL TERMINALS TB1 - 15, 16
30 200
1.0
375/475
1.9
32
.00
0.0
D3
4. SENSORS WITHOUT PREAMPS SHALL MEET THE REQUIREMENTS OF SIMPLE APPARATUS AS DEFINED IN ANSI/ISA
RP12.6 AND THE NEC, ANSI/NFPA 70. THEY CAN NOT GENERATE NOR STORE MORE THAN 1.2V, 0.1A, 25mW,
AND 20µJ. SEE TABLES I AND II.
3. INSTALLATION SHOULD BE IN ACCORDANCE WITH ANSI/ISA RP12.06.01 "INSTALLATION OF INTRINSICALLY SAFE
SYSTEMS FOR HAZARDOUS (CLASSIFIED) LOCATIONS" AND THE NATIONAL ELECTRICAL CODE (ANSI/NFPA 70).
Imax (mA)
Pmax (W)
Vmax (Vdc)
CONTACTING CO
NDUCTIVITY SENSOR
FM APPROVED DEVICE IN ACCORDANCE
WITH ENTITY REQUIREMENTS OR
SIMPLE APPARATUS
IS CLASS I, II, III,
DIVISION 1,
GROUPS A, B, C, D, E, F, G;
NI CLASS I,
DIVISION 2,
GROUPS A,B,C,D;
SUITABLE CLASS II,
DIVISION 2,
GROUPS F & G;
SUITABLE CLASS III,
DIVISION 2
THIS DOCUMENT IS
CERTIFIED BY
REV
REV
REV
REV
REV
REV
REVISIONS NOT PERMITTED
W/O AGENCY APPROVAL
FM C
14 NON-INCENDIVE FIELD WIRING METHODS MAY BE USED FOR CONNECTING SENSORS TO THE INSTRUMENT. ATTACHED SENSORS MUST BE FM
APPROVED AS NON-INCENDIVE FOR CLASS 1, DIVISION 2, GROUPS ABCD WITH INPUT VALUES OF Vmax AND Imax
> Voc (Vt) AND Isc (It) LISTED
IN TABLE II AND THE Ci AND Li OF THE SENSOR AND INTERCONNECTED WIRING MUST BE<
Ca AND La LISTED IN TABLE 1 OR BE CLASSIFIED AS
"SIMPLE APPARATUS". SIMPLE APPARATUS ARE DEVICES WHICH ARE INCAPABLE OF GENERATING OR STORING MORE THAN 1.2 V, 0.1 A, 25 mW
OR 20
µJ (CONTACTING CONDUCTIVITY SENSORS QUALIFY AS SIMPLE APPARATUS).
12
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January 2015 LIQ_MAN_ABR_5081C-HT/Rev.G
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