OHAUS EB SERIES Service Manual

Contents

OHAUS EB SERIES Service Manual Manual pdf 16 page image

CHAPTER 2 DIAGNOSISOhaus Corporation www.ohaus.com 2-4 EB Series Scales Series Service ManualTABLE 2-5. BALANCE READING INCORRECT OR UNSTABLE.SYMPTOM PROBABLE CAUSE REMEDYBalance readsincorrectly.Balance readingunstable.Needs calibration.Load Cell is damaged.Main PC Board defective.Perform Service Calibration inAppendix B. If calibration fails, refer toTable 2-6.Test the Load Cell (Section 2.7). Ifdefective replace it (Section 3.4).After repair, proceed with PerformanceTests in Chapter 4.Test the Main PC Board (Section 2.8).If defective, replace it (Section 3.3).After repair, proceed with PerformanceTests in Chapter 4.TABLE 2-6. CANNOT CALIBRATE THE SCALE.SYMPTOM PROBABLE CAUSE REMEDYScale can be turnedon but will notcalibrate.Incorrect weights.Load cell assemblydefective.Main PC Board defectiveVerify that proper weights are used.Test the Load Cell (Section 2.7). Ifdefective replace it (Section 3.4).After repair, proceed with PerformanceTests in Chapter 4.Test the Main PC Board (Section 2.8).If defective, replace it (Section 3.3).After repair, proceed with PerformanceTests in Chapter 4.