Model 979 Series Helium Mass Spectrometer Leak Detector
vi
DRAFT 9/15/03
Section 2. Operating the 979 Leak Detector ................................................................................... 2-1
2.1 Initial Startup and Shutdown ............................................................................................... 2-1
2.1.1 Startup ........................................................................................................................ 2-1
2.1.2 Calibration ................................................................................................................... 2-1
2.1.3 Shutdown .................................................................................................................... 2-1
2.2 Operator Interface................................................................................................................ 2-2
2.2.1 Sniffer Set-Up Procedure ............................................................................................ 2-5
2.2.2 Key Switch .................................................................................................................. 2-5
2.3 Touch Panel Menus ............................................................................................................. 2-6
2.3.1 Contrast Adjustment of the Touch Panel Display ....................................................... 2-6
2.3.2 Changing Variables in Touch Panel Screens ............................................................. 2-6
2.3.3 Selecting Options in Touch Panel Screens................................................................. 2-7
2.4 979 Touch Panel Home Screen........................................................................................... 2-8
2.4.1 Digital Leak Rate......................................................................................................... 2-8
2.4.2 Test Port Pressure ...................................................................................................... 2-9
2.4.3 Leak Detector Status .................................................................................................. 2-9
2.4.4 Leak Detector Condition ............................................................................................. 2-9
2.4.5 Reject Status Indicator ................................................................................................ 2-9
2.4.6 SYS INFO and MENUS Touch Screen Boxes ............................................................ 2-9
2.5 979 System Information Screen......................................................................................... 2-12
2.6 First Menu Selection Screen.............................................................................................. 2-14
2.6.1 Calibrated Leak Set-Up............................................................................................. 2-14
2.6.1.1 Selecting Internal or External Calibrated Leak for Calibration ..................... 2-15
2.6.1.2 Selecting Full or Fast Calibration Routine .................................................... 2-15
2.6.2 Reject and Audio Set Points ..................................................................................... 2-16
2.6.2.1 Changing and Enabling Set Point Values .................................................... 2-16
2.6.3 Auto Sequencer Set-Up ............................................................................................ 2-17
2.6.3.1 Auto Sequencer Set-Up Controls ................................................................. 2-18
2.6.4 Rough Pump Set-Up................................................................................................. 2-19
2.6.4.1 Selecting Rough Only or Split Flow Mode .................................................... 2-19
2.6.4.2 Inputting the Rough Pump and Forepump Sizes ......................................... 2-20
2.6.4.3 VENT LOCK Function .................................................................................. 2-20
2.6.5 Leak Rate Ranging Set-Up ....................................................................................... 2-20
2.6.5.1 Range Stop and Manual Range Set-Up and Control ................................... 2-21
2.6.5.2 Selecting Fine Test or Gross Test Only Mode ............................................. 2-22
2.6.5.3 System Sensitivity ........................................................................................ 2-22
2.6.6 Output Control Set-Up .............................................................................................. 2-24
2.6.6.1 Leak Rate Analog Output Voltage Selection ................................................ 2-24
2.6.6.2 Bargraph Display Set-Up ............................................................................. 2-24
2.6.6.3 Serial Communications Protocol Set-Up ...................................................... 2-26
2.6.7 Transfer Pressure Set-Up ......................................................................................... 2-26
2.6.8 NEXT and BACK Boxes............................................................................................ 2-27
2.7 Second Menu Selection Screen......................................................................................... 2-28
2.7.1 Units Set-Up.............................................................................................................. 2-28
2.7.1.1 Leak Rate and Test Port Pressure Units Selection ...................................... 2-28
Summary of Contents for 979 Series
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