Emerson Rosemount Model 500 User Manual

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 Table 3-1 and are illustrated in Figure 3-1.
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

Emerson Rosemount Model 500 Specifications

General

Brand	Emerson
Model	Rosemount Model 500
Category	Industrial Equipment
Language	English