202N DIFFERENTIAL PRESSURE RECORDER RECORDER TROUBLESHOOTING

 If the recorder operation difficulties are encountered ,refer the table below.

                                                                                                                                                                            

Trouble	Possible Source	Probable cause	Corrective Action
Low or No Indication	Recorder Mechanism	Loose linkage or movement	Repair or replace as required
		Out of Calibration	Calibrate
		Corroded or dirty mechanism	Clean or replace
		Loose pen arm	Tighten pen arm screw.
High Indication	Recorder Mechanism	Loose linkage or movement	Repair or replace as required
		Out of Calibration	Calibrate
Erratic Indication	Recorder Mechanism	Dirty or dragging linkage.	Clean or adjust  as required
		Excessive pen-to-chart pressure	Adjust pen pressure.

                    Recorder Troubleshooting chart