INFICON Installation | 6
074-594-P1H Micro GC Fusion Operating Manual 57 / 319
6.1.2 Carrier Gas Requirement
• Carrier gas (e.g., helium, argon) with purity of 99.999% (or minimum 99.995%
when the appropriate carrier gas trap is installed)
A pressurized >16,547 kPa (>2400 psi) 50 liter tank of carrier gas will last
approximately one year or more.
• Dual-stage regulator for pressurized carrier gas tank with outlet pressure regulated
to 400-427 kPa (58-62 psi). A Swagelok 1/8 in. fitting is preferred on the regulator
outlet to connect the carrier gas feed tube to Micro GC Fusion.
In North America, use the CGA 580 inlet connection (PN 952-416-P1) for
helium, nitrogen, and argon carrier gas. Use the CGA 350 inlet connection
(PN 952-415-P1) for hydrogen carrier gas. For installations outside of North
America, use the appropriate standard inlet connections for the region.
CAUTION
Carrier gas inlet (rear of instrument) pressure must be between 400-427 kPa
(58-62 psi). Use a dual-stage regulator on the carrier gas cylinder to ensure
the pressure range is maintained.
Exceeding 565 kPa (82 psi) may damage Micro GC Fusion and require factory repair.
• Moisture/hydrocarbon trap (PN G2870A-01) is required for the carrier gas when
using Molsieve or Alumina columns
CAUTION
To protect Micro GC Fusion and enhance performance, carrier gas traps
should be used to purify the carrier gas before introduction into Micro GC
Fusion.
A moisture/hydrocarbon trap (PN G2870A-01) is recommended.
• Copper or stainless steel tubing (pre-cleaned) 1/8 in. OD for carrier gas
connections between the tank regulator output and Micro GC Fusion carrier gas
inlet. Micro GC Fusion has up to four 1/8 in. Swagelok male carrier gas inlet
connections.
3 m (10 ft.) of pre-cleaned GC grade copper tubing is included with Micro GC
Fusion. Additional copper tubing is available in the installation kit (PN
952-021-G1), or can be ordered in 15 m (50 ft.) lengths (PN 069-0115).
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