Rockwell Automation 1797-XXX FLEX Ex System Certification Reference Manual - Manual (Page 140)

Publication 1797-6.5.6 - June 2005
29-2 1797-OE8 FLEX Ex 8 Output Analog Module
Intrinsically Safe
Specifications For a full list of specifications, refer to FLEX Ex 8 Output Analog Module
Installation Instructions, publication 1797-5.3.
UL, C-UL 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) or Canadian Electric Code (CEC).
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
Class II Division 1 Groups E, F, G; Class III
Certificates UL Certificate Number 99.19699
C US
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(-) 21.0 100.0 - - A, B, IIC 0.08 2.0
C, E, IIB 0.24 8.0
D, F, G, IIA 0.64 16.0