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RUSKA 7750i
Users Manual
ii
Introduction........................................................................................................ 2-1
Power Supply..................................................................................................... 2-2
Electronics Module ............................................................................................ 2-2
Back-Plane Board.......................................................................................... 2-2
Microprocessor Board ................................................................................... 2-2
Digital Control Board .................................................................................... 2-3
IEEE-488 Interface........................................................................................ 2-3
Front Panel..................................................................................................... 2-3
Pneumatics Module............................................................................................ 2-3
Measure Mode Pneumatics............................................................................ 2-4
Qc Reference............................................................................................. 2-4
Test Port .................................................................................................... 2-4
Go to Ground or Vent Procedure .............................................................. 2-6
Control Mode Pneumatics ............................................................................. 2-7
Pressure Supply Port ................................................................................. 2-7
Vacuum Supply (Exhaust) Port................................................................. 2-7
Pressure Control........................................................................................ 2-7
Control Strategy................................................................................................. 2-7
Inner vs. Outer loops ..................................................................................... 2-7
Transducer Module ............................................................................................ 2-7
Quartz Bourdon Tube Sensor ........................................................................ 2-7
Sensor Board ................................................................................................. 2-9
Linearization Term ........................................................................................ 2-9
Software ............................................................................................................. 2-9
Software Safety Controls............................................................................... 2-9
Preventing Operator Errors ....................................................................... 2-9
Pneumatic Errors....................................................................................... 2-9
Shut Offs ................................................................................................... 2-9
Oven Control............................................................................................. 2-10
Pressure Reading and Correction .............................................................. 2-10
3 Installation ........................................................................................... 3-1
Introduction........................................................................................................ 3-1
Unpacking the ADTS......................................................................................... 3-1
Cautions ............................................................................................................. 3-2
Powering Up the ADTS..................................................................................... 3-2
Observing the ADTS’s Full Scale Rating...................................................... 3-3
Pneumatic Connections...................................................................................... 3-3
Pressure Supply Port...................................................................................... 3-3
Supply Vacuum Port...................................................................................... 3-3
Ps & Pt Test Ports.......................................................................................... 3-3
Vacuum Sensor.............................................................................................. 3-3
4 Local Operation ................................................................................... 4-1
Local Operation ................................................................................................. 4-1
Dual Channel Display Screen ............................................................................ 4-3
Control Ps and Control Qc ............................................................................ 4-3
Go to Ground................................................................................................. 4-3
Leak Test ....................................................................................................... 4-3
Single Channel Display Screen ..................................................................... 4-4
Tutorial .............................................................................................................. 4-4
Changing Units of Measure........................................................................... 4-5
Selecting Language ....................................................................................... 4-6
Controlling Pressure .......................................................................................... 4-7