Rockwell Automation 1797-XXX FLEX Ex System Certification Reference Manual - Manual (Page 225)

Publication 1797-6.5.6 - June 2005
1797-IRT8 FLEX Ex Thermocouple/RTD Input Module 49-3
IMPORTANT
A terminal base may or may not have an I/O module
installed.
1797- IRT8 Allen-Bradley
B - A
7 PWR 6 5 4 3 2 1 0
2
8 Point RTD/Thermocouple mV Input Module
FLEX Ex
Temperature Input
I/O Module
LEDs
Female Bus
Connection
Field Wiring
Terminals Terminal
Base
Terminal
Base Key
Male Bus
Connection
Key Position for
Terminal Base
Insertion
42020
Hazardous (Classified) Location
Class I, Zone 0 Group IIC
Class I, Div. 1 Groups A, B, C, D
Class II, Div. 1 Groups E, F, G
Class III, Div. 1 Hazardous (Classified) Location
Class I, Zone 1 Group IIC
Class I, Div. 1 Groups A, B, C, D
For connection to other
modules, refer to the General
FM Certification Information
on page 38-1.
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 =0
V max =9.5V
I max =1A
C i =0
L i =0
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
CJC0 CJC1
Any Simple Apparatus or FM approved 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:
42485
For connection to other
modules, refer to the General
FM Certification Information
on page 38-1.
From FM approved devices,
1797-PS1N, -PS2N, or
-PS2N2.