Bacharach 450 Operating & Maintenance Instructions
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Parts & Service ECA 45074 Instruction 0024-94005.4 Troubleshooting GuideThe following table lists the causes and remedies for most of the problemsthat may arise with the analyzer.If the information in Table 5-1 does not solve the problem, or for help withany problem that is not listed, then please contact one of the BacharachService Centers listed in Section 6.3.TABLE 5-1. TROUBLESHOOTING GUIDESymptom Probable Cause & RemedyAnalyzer completely nonfunctional;won’t turn on when the I/O key ispressed.a. Battery pack dead. Rechargebattery pack per Section 4.1.b. Loose battery connector. Removeanalyzer’s top panel and ensure thatthe battery connector is securelyattached to the printed circuitboard.c. Microprocessor needs reset.Remove analyzer’s top panel andpress the Reset button shown inFigure 4-5.Display screen is blank whenanalyzer is turned on, but pump runsduring warm-up cycle.a. Microprocessor needs reset.Remove analyzer’s top panel andpress the Reset button shown inFigure 4-6.b. Loose display connector(s).Remove analyzer’s top panel andensure that all display-panelconnectors are properly attached tothe printed circuit boards.Display goes blank during operation. The analyzer’s display blankingfunction has been activated. Tochange the display timeout interval,refer to Section 2.17.9.Analyzer won’t respond when acontrol panel key is pressed.a. Microprocessor needs reset.Remove analyzer’s top panel andpress the Reset button shown inFigure 4-6.b. Membrane switch defective.Return to Bacharach forreplacement. |
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