Cold Junction Underrange (5069-IY4, 5069-IY4K)

What does CJChxx.Underrange mean?

This boolean tag indicates that the cold junction temperature at channel (xx) is below the minimum of its operating range. A value of 1 means the channel data is beneath the absolute minimum threshold.

• Measured cold junction temperature is below the minimum operating range of the channel (CJChxx).

Click steps to track your progress.

1. 1

   Measure the cold junction temperature at channel (CJChxx) to verify it is within the specified operating range.

2. 2

   Verify the cold junction sensor functionality and wiring.