Agilent Technologies 990 User Manual

4Sample Gas Handling
990 Micro GC Optional Pressure Regulators
50 Agilent 990 Micro GC User Manual
990 Micro GC Optional Pressure Regulators
Agilent offers two optional sample inlet pressure regulator assemblies for the 990 Micro GC.
These assemblies are provided fully assembled, and require field installation on the rear of the GC.
G3588-68863 provides a pressure regulator, Genie filter (for sample drying) and needle valve,
along with the required mounting bracket and hardware required for installation.
G3588-68864 provides a pressure regulator and needle valve, along with the required mounting
bracket and hardware required for installation.
Installation instructions for both assemblies are provided below.
G3588-68863
The Agilent pressure regulator assembly (G3588-68863) provides a pressure regulator, Genie filter
(for sample drying) and needle valve, along with the required mounting bracket and hardware
required for installation.
Figure 18 shows the components and connection points for the Agilent pressure regulator
assembly (G3588-68863).
The pressure regulator has been tested to the fixed specifications shown in Table 9.
The sample flows through the pressure regulator and into the Genie filter. Dried sample is then
applied to the rear sample inlet of the GC.
NOTE
The typical working pressure of the Genie filter is > 0.5 bar. Sample will not flow through the filter
if this working pressure is not maintained.
Figure 18. Agilent pressure regulator assembly (G3588-68863) functional block diagram
Table 9 Pressure regulator specifications
Attribute Specification
Input 25 bar (2.5 Mpa)
Output 0.7 bar (10.1 psi or 70 kPa)
Flow 20 mL/min
Out
Genie 170
In Vent
Pressure
regulator
Sample
IN
Sample
OUT
(Drain)
Dried sample to
analytical channels -
rear sample inlet of GC
Needle
valve

Agilent Technologies 990 Specifications

General

Brand	Agilent Technologies
Model	990
Category	Laboratory Equipment
Language	English