Honeywell DR4500A Product Manual page 217

Installation related problems
Read the Installation section in this manual to make sure the DR4500A has been properly installed. The
installation section provides information on protection against electrical noise, connecting external
equipment to the recorder, and shielding and routing external wiring.
ATTENTION
System noise induced into the recorder will result in diagnostic error messages recurring. If the
diagnostic error messages can be cleared, it indicates a "soft" failure and is probably noise
related.
If system noise is suspected, completely isolate the recorder from all field wiring. Use
calibration sources to simulate PV and check all recorder and control functions; that is, Pen
functions, Chart Trace, Gain, Rate, Reset, Output, Alarms, etc.
Application related problems
Review the application of the recorder; then, if necessary, direct your questions to the local sales office.
Hardware and software related problems
Use the troubleshooting error message prompts and recorder failure symptoms to identify typical failures
which may occur in the recorder. Follow the troubleshooting procedures to correct them.
Release M DR4500A Classic Series Circular Chart Recorder With or Without Control Product Manual
April 2017
Troubleshooting / Service
Overview
203