CJ Channels view parameters

The
CJ Channels
 view includes these parameters:
Parameter
Description
Cold Junction Channel
Displays the channel number to which this configuration applies.
Disable Compensation
Determines whether the channel is disabled.
Disabled channels prevents the cold junction temperatures from being returned to the controller. For the majority of application scenarios, this checkbox is not selected.
Sensor Offset
Sets a bias value, in degrees C, which is added equally to both cold junction temperatures.
Remote Termination
Determines the type of cold junction compensation the device uses and is governed by where the thermocouples are connected.
Tip
:
  • Do not select this checkbox when wiring Thermocouples and Cold Junction thermistors directly to the device’s Removable Terminal Blocks (RTB).
    In this case, the device uses both Cold Junction circuits at the top and bottom of the RTB to determine the temperature gradient at the termination points and compensate appropriately.
  • Select the checkbox when Thermocouples are remotely connected and the Cold Junction thermistor is not mounted directly on the RTB—for example, when using a 1492-IFM Wiring Block.
    In this case, the thermistor, located on the 1492-IFM, is wired to the top Cold Junction circuit on the device, and only that circuit is used for compensation.
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