2
Installation
2.1
Installing the Rosemount Model 500 helium to
hydrogen gas conversion kit
These are the instructions to install the hardware for the helium to hydrogen gas
conversion kit for the Rosemount Model 500 Gas Chromatograph.
The installation kit (P/N 2-3-0500-186) contains the hardware necessary to convert helium
to hydrogen gas for the GC.
WARNING
Before converting carrier gas to hydrogen, review local hazardous area requirements to
ensure compliance.
The procedure to convert the Rosemount Model 500 Gas Chromatograph from helium to
hydrogen gas includes:
•
Changing the thermistors (P/N 3-0500-521)
•
Adding a carrier shut-off valve (P/N 2-4-4000-190)
•
Changing the Masoneilan carrier pressure regulator (60-110 psig) (P/N 2-4-9500-084)
to a Parker (10-100 psig) (P/N 2-4-5001-977)
•
Installing the new 10-ft. (3 m) long restrictor (R2)
•
Purging the carrier gas
•
Adjusting the carrier pressure (MON2000 2-3-9000-522)
The contents of the kit are listed in
and are illustrated in
Table 2-1: Hydrogen Conversion Kit Main Components
Carrier shut-off valve
Pressure regulator
Gauge 0 - 100 psi
Thermistors
P/N 2-4-4000-190
P/N 2-4-5001-977
P/N 2-4-5001-995
P/N 2-3-0500-521
Retrofit Instructions
Installation
SK-07781
September 2019
Rosemount Model 500 Helium to Hydrogen Gas Conversion Kit
9
Summary of Contents for Rosemount Model 500
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Page 6: ...Contents Retrofit Instructions September 2019 SK 07781 vi Emerson com Rosemount ...
Page 8: ...Safety requirements Retrofit Instructions September 2019 SK 07781 8 Emerson com Rosemount ...
Page 22: ...Installation Retrofit Instructions September 2019 SK 07781 22 Emerson com Rosemount ...