Apollo IMY instruction manual Appendix C Troubleshooting Guide, Problem Possible Cause Remedies

APPENDIX “C” - TROUBLESHOOTING GUIDE				connections or improper programming set-ups. Be sure all connections are clean and
				The majority of all problems with the indicator can be traced to improper
				tight and check the programming set-ups for correct data. For further technical
				assistance, contact technical support at the appropriate company numbers listed.
	PROBLEM	POSSIBLE CAUSE			REMEDIES
	NO DISPLAY	1.	Power off, improperly connected, or brown-out.		1a. Check wiring.
					b. Verify power.
	“PPPPPP” IN DISPLAY	1.	Program data error.		1.	Press “P” and Check data set-ups.
	FLASHING DISPLAY	1.	Totalizer overflow.		1.	Reset totalizer.
	“......” IN DISPLAY	1.	Loss of data set-ups.		1a. Check data set-ups.
					b. Check for electrical disturbance.
					c. Disconnect and reconnect power.
	DISPLAY WANDERS	1.	Loss of data set-ups.		1a. Check data set-ups.
					b. Disconnect and reconnect power.
					c. Check for electrical disturbance.
	JITTERY DISPLAY	1.	Electrical “Noise” in process or signal lines.		1a. Increase digital filtering.
					b. Increase display rounding increment.
		2.	Process inherently unstable.		c. Re-route signal wires.
					2.	Dampen process to eliminate oscillations.
	“ULULUL” IN DISPLAY	1.	Probe unconnected		1.	Connect probe.
		2.	Broken or burnout probe.		2.	Repair or obtain new probe.
		3.	Excessive probe temperature.		3.	Reduce temperature.
		4.	Input overload.		4.	Check input levels.
	“OLOLOL” IN DISPLAY	1.	Input Underload (negative overload).		1.	Check input levels.
	“SHort” IN DISPLAY	1.	Shorted probe.		1.	Check probe.

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