Rockwell Automation 1797-IRT8 FLEX Ex Thermocouple/RTD Module - Manual (Page 26)

26 FLEX Ex Thermocouple/RTD Input Module
Publication 1797-5.4 - June 2010
Hazardous (Classified) Location

Class I, Zones 0, 1, & 2 Groups IIC, IIB, IIA

Class I, Div. 1 & 2 Groups A, B, C, D

Class II, Div. 1 & 2 Groups E, F, G

Class III, Div. 1 & 2
Hazardous (Classified) Location

Class I, Zones 1 & 2 Groups IIC, IIB, IIA

Class I, Div. 1 & 2 Groups A, B, C, D
To any intrinsically safe
device or associated
apparatus with Entity
Concept
 parameters of
V
oc
< 5.8V; I
sc
< 400 mA.
To any intrinsically safe
device or associated
apparatus with Entity
Concept
 parameters of 
V
oc
< 9.5V; I
sc
< 1 A.
To any IS device with Entity
Concept
 parameters of
(V
max
, I
max
, C
i
, L
i
) appropriate
for connection to associated
apparatus with Entity
Concept parameters listed in
Table 2.
ch0
ch1
ch2
ch3
ch4
ch5
ch6
ch7 29(+)
30(H)
1797-IRT8
16
Shield Connection Only
50
51
35
34
Female Bus Connector 
V max =5.8V 
I max =400mA 
C i =1350nF 
L i =negligible
V max =9.5V 
I max =1A 
C i =negligible 
L i =negligible
Male Bus
Connector
  




33
40
41
42
43
44
45
31(L)
32(-)
25(+)
26(H)
27(L)
28(-)
21(+)
22(H)
23(L)
24(-)
17(+)
18(H)
19(L)
20(-)
12(+)
13(H)
14(L)
15(-)
8(+)
9(H)
10(L)
11(-)
4(+)
5(H)
6(L)
7(-)
0(+)
1(H)
2(L)
3(-)
37 38 39 46 47 48
CJC1 CJC2
Any Simple Apparatus  or I.S. device with
Entity Concept parameters  (V
max
, I
max
, C
i
,
L
i
) appropriate for connection to associated
apparatus with Entity Concept parameters
listed in Table 1.