Rockwell Automation 1797-XXX FLEX Ex System Certification Reference Manual - Manual (Page 206)

Publication 1797-6.5.6 - June 2005
45-2 1797-IE8H FLEX Ex 8 Input HART Analog Module
Intrinsically Safe
Specifications For a full list of specifications, refer to FLEX Ex 8 Input Analog Module
Installation Instructions, publication 1797-5.5.
FM I/O Entity Parameters Wiring Methods
• Wiring method 1 - Each channel is wired separately.
• Wiring method 2 - Multiple channels in one cable, providing each
channel is separated in accordance with the National Electric Code
(NEC).
Table 1: Entity Values for Field Device Connections
Operating Temperature
-20 to +70
o
C (-4 to +158
o
F)
Agency Certification Class I Division 1 Groups A-D T4
Class I Zone 1 AEx ib/[ia] IIC T4
Certificates FM Certificate Number 3009806
FM
Wiring
Method
Channel Terminals V
oc
(V)
I
sc
(mA)
V
t
(V)
I
t
(mA)
Groups C
a
(
µF)
L
a
(mH)
1 and 2 Any one
channel
e.g. ch0
0(+), 1(sig), 2(-) 24.4 92.5 - - A, B 0.12 4.0
C, E 0.35 12.0
D, F, G 0.95 32.0
1(sig), 2(-) 24.4 92.5 28 110 A, B 0.12 4.0
C, E 0.35 12.0
D, F, G 0.95 32.0
1797- IE8H Allen-Bradley
B - A
7 PWR 0 1 2 3 4 5 6
8
8 CHANNEL ANALOG INPUT
FLEX Ex Analog
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
42055