Troubleshooting and Pen Alignment
of Recorder with Display
4/00 DR4300 Circular Chart Recorder Product Manual 179
8.4 Observable Symptoms of Failure
Introduction
In addition to the error message prompts, there are observable symptoms of failure that can be identified by
noting the erratic recorder functions.
Symptoms
Compare your recorder’s symptoms with those shown in Table 8-5 and refer to the indicated subsection for
the appropriate troubleshooting procedure.
Table 8-5 Observable Symptoms of Failure
Symptom
See
Subsection
Recorder will not operate. 8.5.2
Recorder operation is normal but pen trace is incorrect. 8.5.3
Chart rotates at wrong speed or will not rotate (pen indication correct). 8.5.4
Pen remains at high end of range when input signal is low. 8.5.5
A key does not respond and/or a display does not light. 8.5.6
Displayed output does not agree with controller output. 8.5.6
External alarm function does not operate properly. 8.5.8
Digital input function does not operate properly. 8.5.9
Modbus communications are not successful. 8.5.10
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