Metal Samples MS2500L, Operator'S Manual

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VII. Instrument Testing and Repair ........................................................................................... 23
A. Recommended Test Equipment .............................................................................. 23
B. Board Removal ..................................................................................................... 23
C. Electrostatic Shield Removal .................................................................................. 23
D. Visual Inspection ................................................................................................... 24
E. Electrical Testing ................................................................................................... 24
VIII. Current Loop Operation and Testing ............................................................................... 28
A. Recommended Test Equipment .............................................................................. 28
B. Instrument and Loop Verification ............................................................................ 28
C. Probe Element Testing ........................................................................................... 28
D. Current Loop Isolation Testing ............................................................................... 29
Appendix A: Drawings ............................................................................................................. 30
Assembly Drawings .......................................................................................................... 31
Installation Drawing .......................................................................................................... 36
Appendix B: Parts List ............................................................................................................. 37
Appendix C: Effects of Process Variables ................................................................................. 38
Temperature ..................................................................................................................... 38
pH 54 .............................................................................................................................. 38
Oxygen Concentration ...................................................................................................... 38
Fluid Velocity ................................................................................................................... 38
Suspended Solids ............................................................................................................. 39
Electrode Potentials .......................................................................................................... 41
Common Corrosive Agents .............................................................................................. 43
Appendix D: Warranty Information ........................................................................................... 44
Appendix E: Maintenance and Repair Instructions .................................................................... 45