Rockwell Automation 1794-IRT8XT FLEX I/O Thermocouple/RTD /Millivolt Input Module User Manual - Manual (Page 65)

53 Publication 1794-6.5.12 - September 2011
Appendix
A
Specifications
Overview This appendix contains general and environmental specifications and
certifications for the FLEX I/O Thermocouple, RTD, mV Input Modules.
General Specifications
Attribute Value
Number of inputs 8 channels (2 groups of 4)
Module location Cat. Nos. 1794-TB3G, 1794-TB3GS, 1794-TB3GK Terminal
base units
Nominal input voltage
ranges
-40…100 mV DC for thermocouples
0…325 mV for RTDs
mV default
Supported
thermocouple types
Type
B
E
J
K
TXK/XK(L)
N
R
S
T
Range °C
300…1800 °C
-270…1000 °C
-210…1200 °C
-270…1372 °C
200…800 °C
-270…1300 °C
-50…1768 °C
-50…1768 °C
-270…400 °C
Range °F
(572…3272 °F)
(-454…1832 °F)
(-346…2192 °F)
(-454…2502 °F)
(-328…1472 °F)
(-454…2372 °F)
(-58…3214 °F)
(-58…3214 °F)
(-454…752 °F)
Supported RTD types Resistance
100 Ω Pt α = 0.00385 Euro -200…870 °C (-328…1598 °F)
200 Ω Pt α = 0.00385 Euro -200…400 °C (-328…752 °F)
100 Ω Pt α = 0.003916 U.S. -200…630 °C (-328…1166 °F)
100 Ω Pt α = 0.003916 U.S. -200…400 °C (-328…752 °F)
100 Ω Nickel -60…250 °C (-76…482 °F)
200 Ω Nickel -60…200 °C (-76…362) °F)
120 Ω Nickel -80…320 °C (-112…608 °F)
10 Ω Copper -200…260 °C (-328…470 °F)
Resolution 14 bits
Accuracy vs. filter cutoff 0.05% of full range in millivolt mode with filtering selected
Hardware only = 0.10% of full range in millivolt mode
Data format °C (implied decimal point XXX.X)
°F (implied decimal point XXX.X)
°K (implied decimal point XXX.X)
-32767…32767
0…65535
0…5000 ohms mode (implied decimal point XXX.X)
-4000…+10000 millivolt mode (implied decimal
point XXX.XX)
Common mode rejection -80 db @ 5V peak-to-peak, 50…60 Hz
Common mode input range +15V min