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Table of Contents
Important Note ........................................................................................... 3
Standard Vilter Warranty ............................................................................ 7
Operational Flow Charts .............................................................................. 9
Installation Recommendations .................................................................. 11
Best Practices ........................................................................................ 16
Vission 20/20 Architecture ......................................................................... 17
Digital Input/Output ............................................................................. 18
Analog Inputs ........................................................................................ 21
Analog Outputs ..................................................................................... 23
Touch Screen LCD Display .......................................................................... 24
Menu Screen ......................................................................................... 26
Compressor Control Screen ................................................................... 28
Pump-Down and Pull-Down Setpoints .................................................. 32
Additional Control Setpoints ................................................................. 34
Alarms and Trips Screen ........................................................................ 37
Alarms and Trips .................................................................................... 39
Timers .................................................................................................. 41
Timers .................................................................................................. 43
Service Options ..................................................................................... 44
Instrument Calibration .......................................................................... 45
Slide Calibration ........................................................................................ 46
Command Shaft Rotation ...................................................................... 48
Slide Valve Operation ................................................................................ 49
Slide Valve Trouble Shooting Guide ............................................................ 50
Trend Chart ........................................................................................... 53
Event List Screen ................................................................................... 54
Input / Output States ............................................................................. 55
Configuration Screens ........................................................................... 56
Maintenance Screen .............................................................................. 59
Log In Screen ......................................................................................... 60
Screen to Add Users ............................................................................... 61
User Security Levels ............................................................................... 62
Safety Failure Message .......................................................................... 63
Vission 20/20 Troubleshooting Guide ......................................................... 65