Chromalox 8003 user manual Error Messages, Overrange or Underrange Indications

Error Messages

Overrange or Underrange Indications

The instrument shows the OVERRANGE conditions with the following indication on the upper display:

The instrument shows the UNDERRANGE conditions with the following indication on the upper display:

Burn-out conditions are shown as well as overrange condition.

For TC input it is possible to specify optional underrange indication when ordering the controller. Contact the factory for information.

Note: When an overrange condition is detected, the instrument forces the control output to the minimum possible value.

When an underrange condition is detected, the instrument forces the control output to the maximum possible value.

12 Chromalox 8003 User's Manual