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Authorized National Distributor
for the SMC Corporation of America

Authorized National Distributor for SMC
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Gas Select COMPOSER Gas Mix Calibration Software

Personalized gas compositions for accurate mixed gas measurement

Your flow needs will change. Alicat’s COMPOSER™ is ready to adapt with you, on the fly. The day of disposable flow instruments is over.
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Easy • Accurate • Personalized • Future-Proofed

  • Define gas compositions to 0.01% for each of up to 5 constituent gases.
  • COMPOSER™ mixes are NIST-traceably accurate to 0.8% or 0.4% of reading.
  • Create and store 20 COMPOSER™ gas mixes simultaneously on each device.
  • Generate gas lists for multiple units in seconds with single RS-232 commands.
  • Supplied as standard software on most Alicat mass flow instruments.
    *Available on remote-display units by request.

Gas Select™ 5.0

Never use inaccurate K-factors again! Complete NIST Ref Prop 9 gas properties data for up to 130 preloaded full gas calibrations, selectable in real time. *See the full gas list below.

Gas Select COMPOSER gas mix calibration firmware, shown on optional color display

Gas Select COMPOSER™ gas mix calibration firmware, shown on optional color display



Ask Alicat: How can I accurately control my mixed gas flows? (COMPOSER™)

Alicat Scientific introduces Gas Select COMPOSER™, a better way to accurately measure and control mixed gas flows. COMPOSER™ is a revolutionary gas composition feature that allows our users to define up to 20 custom gas compositions with up to 5 constituent gases per mix.



Gas Select COMPOSER™ – Accurate Mixed Gas Flow Measurement

When your gas composition changes, will your flow readings still be accurate? Alicat Scientific presents COMPOSER™, the world’s first on-the-fly mixed gas composition builder, for mass flow meters and mass flow controllers.

Define gas compositions to 0.01% for each of up to 5 constituent gases.

Define gas compositions to 0.01% for each of up to 5 constituent gases.

COMPOSER mixes are NIST-traceably accurate to 0.8% or 0.4% of reading.

COMPOSER™ mixes are NIST-traceably accurate to 0.8% or 0.4% of reading.

Create and store 20 COMPOSER gas mixes simultaneously on each device.

Create and store 20 COMPOSER™ gas mixes simultaneously on each device.

Gas Select™ 5.0 Gas List for Alicat Mass Flow Meters and Controllers

All Alicat Scientific mass flow meters and mass flow controllers come standard with NIST Ref Prop 9 gas properties data for up to 130 preloaded gas calibrations. Users may switch between selected gases on the fly without any need for recalibration of the mass flow meter or controller. All Gas Select™ calibrations retain the instrument’s specified NIST-traceable calibration accuracy. (See individual specifications sheets for details.)

Pure Gases Bioreactor Gas Mixes Pure Corrosives
• Acetylene (C2H2)
• Air
• Argon (Ar)
• i-Butane (i-C4H10)
• n-Butane (n-C4H10)
• Carbon dioxide (CO2)
• Carbon monoxide (CO)
• Deuterium (D2)
• Ethane (C2H6)
• Ethylene/Ethene (C2H4)
• Helium (He)
• Hydrogen (H2)
• Krypton (Kr)
• Methane (CH4)
• Neon (Ne)
• Nitrogen (N2)
• Nitrous Oxide (N2O)
• Oxygen (O2)
• Propane (C3H8)
• Sulfur Hexafluoride (SF6)
• Xenon (Xe)
• 5% CH4 95% CO2
• 10% CH4 90% CO2
• 15% CH4 85% CO2
• 20% CH4 80% CO2
• 25% CH4 75% CO2
• 30% CH4 70% CO2
• 35% CH4 65% CO2
• 40% CH4 60% CO2
• 45% CH4 55% CO2
• 50% CH4 50% CO2
• 55% CH4 45% CO2
• 60% CH4 40% CO2
• 65% CH4 35% CO2
• 70% CH4 30% CO2
• 75% CH4 25% CO2
• 80% CH4 20% CO2
• 85% CH4 15% CO2
• 90% CH4 10% CO2
• 95% CH4 5% CO2
*These gases require MS/MCS-Series instruments.
• Ammonia (NH3)
• Butylene (1-Butene)
• Cis-Butene (cis-2-Butene)
• Iso-Butene
• Trans-Butene
• Carbonyl Sulfide (COS)
• Chlorine (Cl2)
• Dimethylether (CH3OCH3)
• Hydrogen Sulfide (H2S)
• Nitrogen Trifluoride (NF3)
• Nitric Oxide (NO)
• Propylene (C3H6)
• Silane (SiH4)
• Sulfur Dioxide (SO2)
Breathing Gases Fuel Gas Mixes Refrigerants
• EAN-32 (32% O2+68% N2)
• EAN-36 (36% O2+64% N2)
• EAN-40 (40% O2+60% N2)
• EA-40 (40% O2+60% Air)
• EA-60 (60% O2+40% Air)
• EA-80 (80% O2+20% Air)
• Heliox-20 (20% O2+80% He)
• Heliox-21 (21% O2+79% He)
• Heliox-30 (30% O2+70% He)
• Heliox-40 (40% O2+60% He)
• Heliox-50 (50% O2+50% He)
• Heliox-60 (60% O2+40% He)
• Heliox-80 (80% O2+20% He)
• Heliox-99 (99% O2+1% He)
• Metabolic Exhalant (16% O2+78.04% N2+5% CO2+0.96% Ar)
Coal Gas 50% H2+35% CH4+10% CO+5% C2H4
Endothermic Gas 75% H2+25% N2
HHO 66.67% H2+33.33% O2
LPG HD-5 96.1% C3H8+1.5% C2H6+0.4% C3H6+1.9% n-C4H10
LPG HD-10 85% C3H8+10% C3H6+ 5% n-C4H10
Nat Gas 93% CH4+3% C2H6+1% C3H8+2% N2+1% CO2
Nat Gas 95% CH4+3% C2H6+1% N2+ 1% CO2
Nat Gas 95.2% CH4+2.5% C2H6+0.2% C3H8+0.1% C4H10+1.3% N2+0.7% CO2
Syn Gas 40% H2+29% CO+20% CO2+11% CH4
Syn Gas 64% H2+28% CO+1% CO2+7% CH4
Syn Gas 70% H2+4% CO+25% CO2+1% CH4
Syn Gas 83% H2+14% CO+3% CH4
*These gases require MS/MCS-Series instruments.
• R-11 Trichlorofluoromethane (CCl3F)
• R-14 Tetrafluoromethane (CF4)
• R-22 Difluoromonochloromethane (CHClF2)
• R-23 Trifluoromethane (CHF3)
• R-32 Difluoromethane (CH2F2)
• R-115 Chloropentafluoroethane (C2ClF5)
• R-116 Hexafluoroethane (C2F6)
• R-124 Chlorotetrafluoroethane (C2HClF4)
• R-125 Pentafluoroethane (C2HF5)
• R-134A Tetrafluoroethane (CH2FCF3)
• R-142B Chlorodifluoroethane (CH3CClF2)
• R-143A Trifluoroethane (C2H3F3)
• R-152A Difluoroethane (C2H4F2)
• RC-318 Octafluorocyclobutane (C4F8)
• R-404A (44% R-125+4% R-134A+52% R-143A)
• R-407C (22% R-32+25% R-125+52% R-134A)
• R-410A (50% R-32+50% R-125)
• R-507A (50% R-125+50% R-143A)
Chromatography Gases Oxygen Concentrator Gas Mixes
• P-5 (5% CH4+95% Ar)
• P-10 (10% CH4+90% Ar)
• 89% O2+7% N2+4% Ar
• 93% O2+3% N2+4% Ar
• 95% O2+1% N2+4% Ar
Welding Gases Stack/Flue Gas Mixes Laser Gas Mixes
• C-2 (2% CO2+98% Ar)
• C-8 (8% CO2+92% Ar)
• C-10 (10% CO2+90% Ar)
• C-15 (15% CO2+85% Ar)
• C-20 (20% CO2+80% Ar)
• C-25 (25% CO2+75% Ar)
• C-50 (50% CO2+50% Ar)
• C-75 (75% CO2+25% Ar)
• He-25 (25% He+75% Ar)
• He-50 (50% He+50% Ar)
• He-75 (75% He+25% Ar)
• He-90 (90% He+10% Ar)
• A1025 (90% He+7.5% Ar+2.5% CO2)
• Stargon CS (90% Ar+8% CO2+2% O2)
• 2.5% O2+10.8% CO2+85.7% N2+1% Ar
• 2.9% O2+14% CO2+82.1% N2+1% Ar
• 3.7% O2+15% CO2+80.3% N2+1% Ar
• 7% O2+12% CO2+80% N2+1% Ar
• 10% O2+9.5% CO2+79.5% N2+1% Ar
• 13% O2+7% CO2+79% N2+1% Ar
• 4.5% CO2+13.5% N2+82% He
• 6% CO2+14% N2+80% He
• 7% CO2+14% N2+79% He
• 9% CO2+15% N2+76% He
• 9.4% CO2+19.25% N2+71.35% He
• 9% Ne+91% He

On-Site Laser Gas Mixing

Verify flow rates for gases mixed on-site. Create 20 mixes tailored to your exact application needs.

Mixing and remetering custom laser gas mixes with Alicat's COMPOSER

Mixing and remetering custom laser gas mixes with Alicat’s COMPOSER™

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