Troubleshooting Procedures; Overview - Honeywell DR4300 Product Manual

DR4300 Circular Chart Recorder

8.5 Troubleshooting Procedures

8.5.1 Overview

Introduction
The troubleshooting procedures for the observable symptoms of failure are presented in the same order as
they appear in Table 8-5. Each procedure includes what to do if you have that particular failure, as well as
instructions for accomplishing the task, or a cross-reference to instructions elsewhere in the manual.
Equipment needed
You will need the following equipment in order to troubleshoot the symptoms listed in the tables that
follow:
• DC Milliammeter – mA DC
• Calibration sources – T/c, mV, Volt, etc.
• Voltmeter
Safety precautions
Exercise appropriate safety precautions when troubleshooting the recorder operation.
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.
180
WARNING—SHOCK HAZARD
DR4300 Circular Chart Recorder Product Manual
!
4/00