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Apex Instruments, Inc.
XD-502 Digital Console
4.5 Annual Maintenance................................................................................................................
4.6 Manufacturer support for the product......................................................................................
4.6.1 Technical services.......................................................................................................
4.6.2 Calibration services.....................................................................................................
4.6.3 Obtaining documentation and information..................................................................
5.0 Troubleshooting...............................................................................................................................
5.1 LCD Screen.............................................................................................................................
5.1.1 No power to LCD screen.............................................................................................
5.1.2 Screen contrast too dim or bright, cannot read characters on screen........................
5.2 Pressures.................................................................................................................................
5.2.1 Vacuum gauge non-zero.............................................................................................
5.2.2 Meter pressure too sporadic.......................................................................................
5.2.3 Pump motor running abnormally.................................................................................
5.2.4 DGM volume not increasing.......................................................................................
5.3 Temperatures...........................................................................................................................
5.3.1 TC displayed values are changing too quickly to read................................................
5.3.2 TCs reading inaccurately..............................................................................................
5.3.3 Probe, oven or AUX not heating or receiving power....................................................
5.4 Additional Common Console Problems...................................................................................
6.0 Diagrams and Schematics..............................................................................................................
6.1 Electrical Diagram....................................................................................................................
6.2 ....................................................................................................................Plumbing Diagram
6.3 Parts List - Front Panel.............................................................................................................
6.4 Parts List - Interior....................................................................................................................
7.0 References and Related Documentation.......................................................................................
7.1 References..............................................................................................................................
7.1.1 EPA and CFR..............................................................................................................
7.2 Related documentation............................................................................................................
7.2.1 Apex instruments documentation................................................................................
7.2.2 Field data sheet..........................................................................................................
7.2.3 Calibration data sheet.................................................................................................
7.3 Equations and nomenclature...................................................................................................
7.3.1 Equations....................................................................................................................
7.3.2 Nomenclature.............................................................................................................
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