Honeywell DR4300 manual Troubleshooting and Pen Alignment of Recorder with Display

Troubleshooting and Pen Alignment of Recorder with Display

8.Troubleshooting and Pen Alignment of Recorder with Display

8.1Overview

Introduction

This section explains how to troubleshoot the recorder models having display and keypad. Troubleshooting uses self-diagnostic test results and error messages as well as some observable symptoms of failure.

•To reduce recorder down-time, this section enables tracing trouble to a printed circuit assembly (PCA)/hardware assembly level rather than to an individual component.

•While troubleshooting is straightforward, we recommend that only trained service technicians repair the recorder. SEE THE SHOCK HAZARD WARNING BELOW.

This section also includes instructions for aligning the pens

What’s in this section?

The following is a list of the topics covered in this section.

Topic

8.1Overview

8.2Troubleshooting Aids

8.3Self Diagnostics

8.4Observable Symptoms of Failure

8.5Troubleshooting Procedures

8.6Alignment of Pen at Zero and Span

See Page

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WARNING—SHOCK HAZARD !

TROUBLESHOOTING MAY REQUIRE ACCESS TO HAZARDOUS LIVE CIRCUITS, AND SHOULD ONLY BE PERFORMED BY QUALIFIED SERVICE PERSONNEL. MORE THAN ONE SWITCH MAY BE REQUIRED TO DE-ENERGIZE UNIT BEFORE SERVICING.

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