Thermo Scientific iCAP Q Operating Manual page 30

System Description
Gas Supply
Helium
Two-stage Gas Pressure Regulator
3-16 iCAP Q Operating Manual (P/N 1288090, Revision B)
For the iCAP Qc and the iCAP Qs, an installation test is performed
with helium gas to pressurize the CCT cell. See
the helium gas requirements:
Table 3-3. CCT gas requirements for helium
Gas requirements
Purity
Maximum water content
Supply rate
Pressure
The quality of the gas regulator is critical to ensure optimum
performance. A high quality two-stage pressure regulator is absolutely
essential.The plasma gas regulator should have a specification of 20 MPa
(200 bar) primary pressure and 1 MPa (10 bar) outlet pressure. The
CCT gas regulator should have a specification of 20 MPa (200 bar)
primary pressure and 0.3 MPa (3 bar) outlet pressure.
Each country has a different standard outlet fitting for its gas supplies
and therefore each country will require a different regulator. Examples
for regulators are given by region in
listed, contact your local Thermo Fisher Scientific service office for
advice.
Table 3-4. Regulator suppliers
Country Manufacturer
Europe Linde
Linde
Linde
Spectrolab
US Matheson
BOC
Thermo Fisher Scientific supplies the 1/16-inch to 1/4-inch adapter for
the iCAP Qc and the iCAP Qs instruments to connect the CCT gas
tubing to the gas bottle regulator. If the outlet from your regulator is not
1/4 inch, you will need to provide a suitable adapter.
1
Thermo Fisher Scientific does not endorse any manufacturer, nor does it endorse products
other than its own. Companies and products listed in this guide are given as examples only.
Table 3-3
Specification
99.999% or better
2 ppmv
max. 10 mL/min
0.1 MPa (1 bar)
1
Table 3-4. If your region is not
Reference Code Gas Application
C 106/2 Plasma
C 202/2 CCT
C 200hv/2 CCT
LM62 Plasma
3810-CGA580 CCT
HP1700 CCT
(CGA580)
Thermo Fisher Scientific
for details of