Gas Equipment Requirements; Gc Carrier Gas - Thermo Scientific TSQ 8000 Evo Preinstallation Manual

1
Site Preparation

Gas Equipment Requirements

Gas Equipment Requirements

GC Carrier Gas

12 TSQ 8000 Evo Preinstallation Requirements Guide
3. Ensure that the air in your site is free of excess particulate matter.
For reference, the air should contain fewer than 100,000 particles (larger than 5 μm) per
cubic meter. If the concentration is larger than this amount, dust can accumulate on
electronic components. This accumulation reduces their ability to cool off properly and
could cause them to overheat. If your environment is particularly dusty, we recommend
that you purchase the optional dust filter for your system.
4. Ensure that your site is free of electrostatic discharge (ESD), which may damage the
electronic components of your system. Ensure your static has been discharged before
touching internal components of the instrument. ESD can damage sensitive components,
resulting in premature failures.
Use the following guidelines to ensure you have the proper gas supplies ready in advance of
installation:
• You will need a supply of ultra-high purity GC carrier gas. Typical cylinders are about
23 cm (9 in.) wide by 140 cm (55 in.) tall and output >15,000 kPa (>2200 psig). A single
full-size tank will last about three months with a typical usage rate of 50 mL/min. If you
have additional detectors or optional accessories, please refer to your GC or autosampler
manuals for information about gas requirements.
Note Thermo Fisher Scientific installation specifications require helium as a carrier gas
and argon as a collision gas. You must have one tank of each gas at installation, or the field
service engineer will not be able to run specifications on your TSQ 8000 Evo MS.
Table 6. Carrier Gas Specifications
1
Gas Type Purity
Helium 99.999%
Hydrogen 99.999%
1
Ultra-high purity with less than 1.0 ppm each of water, oxygen, and total hydrocarbons and contained in one tank.
2 Connectors will vary with cylinder size. Confirm that your regulator will work with your gas tank. All connections
to the GC/MS are 1/8 in. Swagelok fittings.
Outlet Pressure Regulator
400-700 kPa Dual-stage brass
(58-100 psig) regulator with stainless
steel diaphragm
400-700 kPa Dual-stage brass
(58-100 psig) regulator with stainless
steel diaphragm
2
Connector
CGA-580
CGA-350
Thermo Scientific