Allen-Bradley Micro800

Rockwell Automation Publication 2080-UM003A-EN-E - March 2013 11
Discrete and Analog Expansion I/O Features Chapter 2
The following table shows the default values of the High/Low Clamps (in the
order of low clamp value followed by the high clamp value) for the respective
type/range when they are first enabled. You can change these values (within their
full range) according to your application.
Specialty Module 2085-IRT4 Temperature Input Module
The 2085-IRT4 module lets you configure a sensor type for each of four input
channels that linearizes analog signal into a temperature value.
Sensor Type
The following Thermocouple and RTD sensor types are supported by the
2085-IRT4 expansion I/O module.
Default Range of High Clamp/Low Clamp Values
Data Format 0…20 mA 4…20 mA -10…10V 0…10V
Raw/Proportional Data -32768, 29647 -29822, 29086 -31207, 31207 -32768, 29647
Engineering Units 0, 20000 4000, 20000 -10000, 10000 0, 10000
Percent Range 0, 10000 0, 10000 Not supported 0, 10000
Supported Thermocouple Types and mV Range
Sensor Range Range
B 300…1800 °C (572…3272 °F)
C 0…2315 °C (32…4199 °F)
E -270…1000 °C (-454…1832 °F)
J -210…1200 °C (-346…2192 °F)
K -270…1372 °C (-454…2502 °F)
TXK/XK (L) -200…800 °C (-328…1472 °F)
N -270…1300 °C (-454…2372 °F)
R -50…1768 °C (-58…3214 °F)
S -50…1768 °C (-58…3214 °F)
T -270…400 °C (-454…752 °F)
mV 0…100 mV
Supported RTD Types and Ohms Range
Sensor Range Range
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)
200 Ω Pt α = 0.003916 U.S. -200…400 °C (-328…752 °F)