Rockwell Automation 1797-IRT8 FLEX Ex Thermocouple/RTD Module - Manual (Page 7)

FLEX Ex Thermocouple/RTD Input Module 7
Publication 1797-5.4 - June 2010
 EN60079-11:2007, Explosive atmospheres - Part 11 : equipment
protection by intrinsic safety "i"
 EN60079-0:2006, Electrical apparatus for explosive gas atmospheres -
Part 0 : general requirements
 EN 60079-26 : 2004, Electrical apparatus for explosive gas
atmospheres - Part 26 : construction, test and marking of Group II
Category 1 G electrical apparatus
 EN61241-0 : 2006, Electrical apparatus for use in the presence of
combustible dust - Part 0: General requirements
 EN61241-11:2006, Electrical apparatus for use in the presence of
combustible dust – Part 11: Protection by intrinsic safety 'iD'
Inputs
Each input can be operated from a thermocouple (TC) or resistance
temperature detector (RTD). Do not apply any nonintrinsically safe
signals to this module.
When using an intrinsically safe electrical apparatus according to EN50020,
the European directives and regulations must be followed.
The channels in this module are electrically connected to each other and have
a common plus-line.
IMPORTANT
When interconnecting several lines, you must consider the
total accumulated power and check for intrinsic safety.
Thermocouple
Flexbus
Bus
uC
+V
Power
Supply
-V
L
H
-
+
+
mV
-
2W RTD 3W RTD 4W RTD
CJC
+
-
GND
irt8custconxn