Maintenance and Troubleshooting Azbil Corporation5-12 Model MGG10C/14C - MagneW FLEX+/PLUS+ ConverterOperation errorsWhen a problem occurs during operation:Check against the table on this page for symptoms of the error. If found, perform thesteps indicated in the table. If the problem persists, the flowmeter may be damagedand you should contact technical support. (For technical support, contact an AzbilCorp. sales representative in your area.)Table 5-2 Operation ErrorsSymptom Check Points and TreatmentOutput fluctuatesexcessively beyond theestimated flow rate range.• Verify that the detector is properly grounded.• Verify that the converter is properly grounded.• Verify that the damping time constant is setcorrectly. If not, set the an appropriate dampingtime constant.• Clean the electrodes.Flow rate exceeds the flowrange• Check the flow range setting and make sure it is setto match the detector and process flow. If not, setan appropriate RANGE.• Check that the flowmeter has been zeroed. If not,calibrate the flowmeter.Output exceeds 100%.• Verify that the set range is set correctly.• Verify that the span is set correctly.• Verify that the zero point is correctly adjusted.• Verify that the converter is correctly calibrated.Output remains 0%.• The pipe may be empty. Use the empty detectionfunction to check whether or not the pipe is empty.(If it is empty, the empty detection function will befunctioning.)• Verify that the signal cable is correctly connected.• Verify that the valves are open on the upper andlower sides.• Verify that the span is set correctly.• Verify that the converter is set to the constantcurrent mode.• Verify that the flow rate is not in the low flowcutoff range.Output is in the fail-safemode.• Check the error code.Pulse output is too large ortoo small.• Verify if the pulse weight and width are setcorrectly.• Verify the converter is correctly calibrated.• Verify the pulse counter is proper.• Verify the dropout value is correctly set between 0and 10%.
