Instrutech The Hornet IGM402 User Manual page 5

Hot cathode ionization vacuum gauge with dual convection

Table of Contents

Instruction Manual

Setup and Operation ......................................................................................................................................... 19

5.1

Applying power ........................................................................................................................................ 19

5.2

Emission Current ...................................................................................................................................... 19

5.3

Overpressure shut down .......................................................................................................................... 19

5.4

Degas ........................................................................................................................................................ 20

5.5

Filament Material Selection / Venting the Chamber ............................................................................... 20

5.6

User Interface Basics ................................................................................................................................ 21

5.7

Factory-Set Default Parameters ............................................................................................................... 22

5.8

Programming ............................................................................................................................................ 24

5.8.1

SETUP DISP ....................................................................................................................................... 25

5.8.2

SETUP UNIT ...................................................................................................................................... 29

5.8.3

SETUP IG ........................................................................................................................................... 33

5.8.4

SETUP CGS ........................................................................................................................................ 35

5.8.4.1

SETUP CG1 .................................................................................................................................... 36

5.8.4.2

SETUP CG2 .................................................................................................................................... 38

5.8.5

ANALOG OUTPUT ............................................................................................................................. 38

5.8.6

SETUP COMMS ................................................................................................................................. 40

5.8.7

SERVICE MENU ................................................................................................................................. 40

5.9

Activating the IG sensor ........................................................................................................................... 41

Analog output ................................................................................................................................................... 41

6.1

Ion gauge analog output - IG ONLY .......................................................................................................... 42

6.2

Ion gauge plus convection gauge analog output - IG + CG1 .................................................................... 43

6.3

Convection gauge analog output - LOG-LINEAR ...................................................................................... 44

6.4

Convection gauge analog output - NON-LINEAR ..................................................................................... 45

Using the gauge with different gases ............................................................................................................... 47

7.1

Effects of different gas types on ionization gauge display ....................................................................... 47

7.1.1

Ion gauge display correction factors for selected gases .................................................................. 48

7.2

Effects of different gases on convection gauge display ........................................................................... 48

7.2.1

Convection gauge display conversion for selected gases ................................................................ 50

7.3

Effect of different gases on analog output .............................................................................................. 52

7.3.1

Ion gauge analog output correction factors for selected gases ....................................................... 52