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APPENDIX “C” - TROUBLESHOOTING GUIDE
-41-
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.
2. Process inherently unstable.
1a. Increase digital filtering.
b. Increase display rounding increment.
c. Re-route signal wires.
2. Dampen process to eliminate oscillations.
“ULULUL” IN DISPLAY 1. Probe unconnected
2. Broken or burnout probe.
3. Excessive probe temperature.
4. Input overload.
1. Connect probe.
2. Repair or obtain new probe.
3. Reduce temperature.
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.
The majority of all problems with the indicator can be traced to improper
connectionsorimproper programmingset-ups.Besure allconnectionsare cleanand
tight and check the programming set-ups for correct data. For further technical
assistance, contact technical support at the appropriate company numbers listed.