3708E Invensys Triconex Isolated Thermocouple Module

Product Details:

Description:

A thermocouple input (TC) module includes three independent input channels. Each input channel receives variable voltage signals from each point, performs thermocouple linearization and cold-junction compensation, and converts the result to degrees Celsius or Fahrenheit. Each channel then transmits 16-bit signed integers representing 0.125 degrees per count to the three main processors on demand. In TMR mode, a value is then selected using a mid-value selection algorithm to ensure correct data for every scan.

Each thermocouple input module is programmable to support one thermocouple type, selected from J, K and T for standard thermocouple input
modules and from J, K, T and E for isolated thermocouple input modules.

The isolated module allows users to select upscale or downscale burnout detection with the TriStation software.

For non-isolated modules, upscale or downscale burnout detection depends on the field termination selected. Triplicated temperature transducers
residing on the field termination panel support cold-junction compensation.

Each channel of a thermocouple input module performs auto-calibration using internal precision voltage references. On the isolated module, a faulting coldjunction transducer is annunciated by a cold-junction indicator on the front panel.