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Troubleshooting / Service
Troubleshooting Procedures
214
DR4500A Classic Series Circular Chart Recorder With or Without Control Product Manual
Release L
February 2017
Table 9-7 Procedure #2
—Troubleshooting pen trace failure symptoms
WARNING
Do not lubricate the plastic gears on the chart and pen motors.
Step
What to do
How to do it or where to find the data
1
Check the sensor for the proper type and
its ability to function.
Verify the input configuration data and operation
of the sensor.
2
Recalibrate the recorder.
Refer to
Section 7 - Input Calibration.
For
thermocouple input, be sure to confirm cold-
junction temperature calibration.
3
Replace the servo plate assembly.
Refer to the instructions included with the
replacement part.
4
Call Technical Assistance Center.
1-800-423-9883 USA and Canada
Table 9-8 Procedure #3
—Troubleshooting chart rotation failure symptoms
WARNING
Do not lubricate the plastic gears on the chart and pen motors.
Step
What to do
How to do it or where to find the data
1
Check the chart installation.
Be sure the drive pin on the hub is in the drive
hole on the chart.
2
Check the configured chart speed value
and change it, if required.
Refer to
Section 3 - Configuration.
3
Check the motor cable plug connection
at connector J7 on the main printed
circuit board.
Visually examine the plug and reset it.
4
Replace the chart motor.
Refer to the instructions included with the
replacement part.
5
Call Technical Assistance Center.
1-800-423-9883 USA and Canada