Contents
Chapter 1 Safety requirements.......................................................................................................7
1.1 Rosemount Model 500 Gas Chromatograph safety warnings............................................................7
Chapter 2 Installation.....................................................................................................................9
2.1 Installing the Rosemount Model 500 helium to hydrogen gas conversion kit....................................9
2.2 Installing the carrier shut-off valve and pressure regulator..............................................................10
2.3 Installing the new 10-ft. (3 m) long reference detector restrictor (R2)............................................ 12
2.4 Purging the carrier gas lines............................................................................................................13
2.5 Changing the thermistors...............................................................................................................14
2.6 Adjusting the carrier pressure.........................................................................................................16
Chapter 3 Ordering information...................................................................................................23
3.1 Parts list .........................................................................................................................................23
Appendix A Engineering drawing....................................................................................................25
Retrofit Instructions Contents
SK-07781 September 2019
Rosemount Model 500 Helium to Hydrogen Gas Conversion Kit v