Rockwell Automation 1769-IT6 Compact I/O Thermocouple/mV Input Module - Manual (Page 5)

Compact I/O Thermocouple/mV Input Module 5
Publication 1769-IN026C-EN-P - February 2010
About the Thermocouple/mV Input Module
The thermocouple/mV module receives and stores digitally-converted thermocouple and/or
millivolt analog data from any combination of as many as six thermocouple or millivolt
analog sensors. Each input channel is individually configurable via software for a specific
input device and provides open-circuit, over-range, and under-range detection and indication.
The module receives all of its +5V DC and +24V DC power from the 1769 Compact bus.
The module contains a removable terminal block with two cold-junction compensation (CJC)
sensors.
About the Compact I/O System
Compact I/O modules are suitable for use in an industrial environment when installed in
accordance with these instructions. Specifically, this equipment is intended for use in clean,
dry environments (Pollution Degree 2
(1)
) and to circuits not exceeding Over Voltage
Category II (2) (IEC 60664-1). (3)
Accepted Inputs Range
Thermocouple Type J -210…1200 °C (-346…2192 °F)
Thermocouple Type K -270…1370 °C (-454…2498 °F)
Thermocouple Type T -270…400 °C (-454…752 °F)
Thermocouple Type E -270…1000 °C (-454…1832 °F)
Thermocouple Type R 0…1768 °C (32…3214 °F)
Thermocouple Type S 0…1768 °C (32…3214 °F)
Thermocouple Type B 300…1820 °C (572…3308 °F)
Thermocouple Type N -210…1300 °C (-346…2372 °F)
Thermocouple Type C 0…2315 °C (32…4199 °F)
CJC sensors 0…85 °C (32…185 °F)
Millivolt inputs -50…50 mV
-100…100 mV
(1) Pollution Degree 2 is an environment where, normally, only nonconductive pollution occurs except that occasionally a
temporary conductivity caused by condensation shall be expected.
(2) Over Voltage Category II is the load level section of the electrical distribution system. At this level, transient voltages are
controlled and do not exceed the impulse voltage capability of the product’s insulation.
(3) Pollution Degree 2 and Over Voltage Category II are International Electrotechnical Commission (IEC) designations.