Honeywell DR4500A - Troubleshooting Procedures; Table 9-6 Procedure #1-Troubleshooting Recorder Failure Symptoms

Troubleshooting / Service
Troubleshooting Procedures
Release M DR4500A Classic Series Circular Chart Recorder With or Without Control Product Manual 213
April 2017
9.5 Troubleshooting Procedures
Introduction
The troubleshooting procedures for the Visual Failure Symptoms are listed in numerical order as they
appear in Table 9-5. Each procedure lists what to do if you have that particular failure and how to do it or
where to find the data needed to accomplish the task. Progressive steps provide aid in finding and fixing the
problem.
Equipment needed
You will need the following equipment in order to troubleshoot the symptoms listed in the tables that
follow:
 DC Milliammeter – mAdc
 Calibration sources – T/C, mV, Volt, etc.
 Voltmeter
Table 9-6 Procedure #1—Troubleshooting recorder failure symptoms
Step
What to do
How to do it or where to find the data
1
Check the fuse on the main printed
circuit board.
Replace if defective.
2
Check the supply voltage.
Measure the line voltage across J10 on the Main
printed circuit board.
3
Check the connections to J10 on the
main printed circuit board.
Refer to subsection 2.6 - Input Wiring
Procedures, (Figure 2-12 AC Line Power Wiring).
4
Check the transformer leadwire
connections to the main printed circuit
board.
Refer to Figure 10-5 in Section 10 - Parts List.
5
Check the system for brown-outs, heavy
load switching, etc., and conformance to
installation instructions.
Refer to Section 2 - Installation.
6
Replace the transformer.
Disconnect the transformer lead wires from the
main printed circuit board. Replace the
transformer and tighten the screws. Connect the
lead wires to the main printed circuit board.
7
Call Technical Assistance Center.
1-800-423-9883 USA and Canada