Honeywell DR4300 manual Troubleshooting Erratic Pen Movement

DR4300 Circular Chart Recorder

7.3.5 Troubleshooting Erratic Pen Movement

Procedure

Table 7-5explains what to do if the pen remains at the high end of range when the input signal is low.

Table 7-5 Troubleshooting Erratic Pen Movement Symptoms

Step	What to do	How to do it or
		where to find the instructions
1	Check the sensor and lead wires for	Replace the sensor lead wires as needed.
	continuity. Check the connections to TB2	Tighten the connections.
	on the printed circuit assembly for the pen
	with the problem.
2	Check the pen and input configuration	Refer to Section 3 – Configuration, Startup, and
	data.	Operation of Recorder without Display.
3	Run step test.	Refer to Section 3 – Configuration, Startup, and
		Operation of Recorder without Display
		(Subsection 3.3.3).
4	Replace the servo plate assembly.	Refer to the replacement procedure in Section 9
		– Replacing Hardware Assemblies.
5	Replace the printed circuit assembly for	Refer to the replacement procedure in Section 9
	the pen having the problem.	– Replacing Hardware Assemblies.

168 DR4300 Circular Chart Recorder Product Manual 12/03