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Gas Mixing System GMS 150

Gas Mixing System GMS 150 can produce precise mixtures of up to 4 different gasses. The flows of the individual input gases are measured by thermal mass flow meters and adjusted by integrated mass flow controllers. Before the exit connector, the gas mixture is thoroughly homogenized. The input and output gas connectors are of Prestolok type allowing fast and secure connection to a variety of tubes.

The GMS 150 mass flow meters and controllers can operate gas flows ranging from mln/min to tens of ln/min. Typically, the controllers of GMS 150 operate in the lowest range 0-8 mln/min and in the highest range 0-2500 mln/min. GMS 150 is typically used to control flow of air, carbon dioxide, and nitrogen. Additional gases like nitrogen dioxide, carbon monoxide, methane, ammonia and others can also be added to simulate various technological mixtures or smokestack gasses.

One of the GMS 150 Control Screens
One of the GMS 150 Control Screens

The GMS 150 can be used as a stand-alone instrument or as a constituent part of the PSI Photobioreactor FMT 150, Multi-Cultivator MC 1000-OD or FytoScopes. It can be controlled locally from its front panel. The user can define the required gas mixture either by setting the flows of the individual gasses (e.g., 980 mln/min of N2 and 20 mln/min of CO2) or by setting the required relative composition of the gas mixture (2% CO2) and the mixture gas flow (1000 mln/min).

Newly, PSI introduces the Gas Mixing System GMS 150-MICRO - friendly-priced basic version of the GMS 150. It retains all features of the GMS 150 and the major difference is the limited choice of gas flow meters restricted to maximum total flow of 5 l/min and lower accuracy of mixing. Standard version of the GMS 150-MICRO is equipped with two channels (channel 1 for Air-N2; channel 2 for CO2); the maximum total flow is 2 l/min (channel 1), flow rate of channel 2 40 ml/min. Optionally, the system can be upgraded to four channels version according to customer requirements. Preferably, the GMS 150-MICRO is intended for use with Multi-Cultivators and standard laboratory versions of Photobioreactors (FMT 150/400 and FMT 150/1000).

  • Measuring Principle:
    Thermal mass flow measurement
  • Accuracy (Incl. Linearity):
    ±0,5% Rd plus ±0,1% FS (±1% FS for ranges 3...5 mln/min; ±2% FS for ranges < 3 ml/min)
  • Minimum Possible Flow for Each Channel:
    2 % of maximum total flow
  • Flow Ranges:
    Min. 0.02…1 ml/min / max. 20…1000 l/min (maximum flow range of controllers calibrated according to customer requirements)
  • Media:
    Dry, clean, non-explosive and non-corrosive gasses
  • Control Stability:
    < ±0,1% FS (typical for 1 l/min N2)
  • Settling Time:
    1...2 seconds
  • Warm-Up Time:
    30 min for optimum accuracy, 2 min for accuracy ± 2% FS
  • Temperature Sensitivity:
    zero: < 0,05% FS/°C; span: < 0,05% FS/°C
  • Pressure Sensitivity:
    0,1%/bar typical N2
  • Attitude Sensitivity:
    max. error at 90° off horizontal 0,2% at 1 bar, typical N2
  • Input Pressure:
    3 bar
  • Operating Temperature:
    15 - 50 °C
  • Input / Output Connectors:
    Parker Prestolok (6 mm)
  • Seals:
    Viton
  • Display:
    8 x 21 characters LC display
  • Dimension:
    37 cm x 28 cm x 15 cm
  • Weight:
    7 kg
  • Power Supply:
    115...230 VAC
  • Measuring Principle:
    Thermal mass flow measurement
  • Accuracy (Incl. Linearity):
    ±1,5% Rd plus ±0,5% FS
  • Minimum Possible Flow for Each Channel:
    2 % of maximum total flow
  • Flow Ranges:
    Min. 0,2..10 sccm / max. 0,1..5 slm (maximum flow range of controllers calibrated according to customer requirements)
  • Media:
    Dry, clean, non-explosive and non-corrosive gasses
  • Repeatability:
    For flows < 20ml/min: ±0,5 % FS; for flows > 20ml/min: ±0,5 % RD
  • Setting Time:
    1 sec
  • Temperature Sensitivity:
    zero: < 0,01% FS/°C; span: < 0,02% FS/°C
  • Attitude Sensitivity:
    Max. error at 90° off horizontal 0,5% ml/min at 1 bar, typical N2
  • Input Pressure:
    3...5 bar (maximum operation pressure 8 bar)
  • Operating Temperature:
    15 - 30 °C
  • Input / Output Connectors:
    Parker Prestolok (6 mm)
  • Seals:
    Viton
  • Operating Temperature:
    15...50 °C
  • Display:
    8 x 21 characters LC display
  • Dimension:
    37 cm x 28 cm x 15 cm
  • Weight:
    5 kg
  • Power Supply:
    115...230 VAC
  • Research and industry
  • Algae biotechnology
  • Mixing of gases for analytical research
  • Preparation of gas mixtures for production purposes
  • Gas Mixing System GMS 150
  • CO2 (or other gas) supply
  • Dry, oil-free, pressurized air supply (3-5 bars) supplemented with a filter
  • Regular general maintenance is recommended every two years. It includes: inspection, cleaning, and recalibration of the whole system.
  • VAN ALPHEN P. and HELLINGWERF K. J. (2016): Sustained Circadian Rhythms in Continuous Light in Synechocystis sp. PCC6803 Growing in a Well-Controlled Photobioreactor. PLoS ONE. Volume 10. DOI:10.1371/journal.pone.0127715
  • MÖLLERS K. B., CANNELLA D., JØRGENSEN H., ET AL. (2014): Cyanobacterial biomass as carbohydrate and nutrient feedstock for bioethanol production by yeast fermentation. Biotechnology for Biofuels. Volume 7. DOI: 10.1186/1754-6834-7-64
  • SINETOVA M. A., ČERVENÝ J., ZAVŘEL T., ET AL. (2012): On the dynamics and constraints of batch culture growth of the cyanobacterium Cyanothece sp. ATCC 51142, Journal of Biotechnology, Volume 162, Pages 148-155. DOI: 10.1016/j.jbiotec.2012.04.009
  • NEDBAL L., ČERVENÝ J., NIR K., ET AL.(2010): Experimental validation of a nonequilibrium model of CO2 fluxes between gas, liquid medium, and algae in a flat-panel photobioreactor. Journal of Industrial Microbiology & Biotechnology. Volume 37, Pages 1319-1326. DOI: 10.1007/s10295-010-0876-5

Pricing

  • Orders and Payments
  • Gas Mixing System GMS 150
    8.680,- €
  • Gas Mixing System GMS 150-MICRO
    5.990,- €
  • Additional Channel to Gas Mixing System GMS 150 *
    3.500,- €
  • Additional Channel to Gas Mixing System GMS 150-MICRO *
    2.400,- €
  • Regular Preventive Maintenance of the GMS 150 or GMS 150-MICRO (2-Channel System) *
    980,- €
  • GMS 150 Valve Recalibration *
    Enquire for price,- €

Gas Mixing Systems Versions

Gas Mixing System GMS 150
The standard version GMS 150 includes two channels (channel 1 for Air-N2; channel 2 for CO2). Preferably it is intended for use with PSI Multi-Cultivators, small-volume Photobioreactors, large-volume Photobioreactors and Growth Chambers. High-precision GMS 150 can optionally hold up to four channels.


NEW! - Gas Mixing System GMS 150-MICRO
GMS 150-MICRO includes two channels (channel 1 for Air-N2; channel 2 for CO2); its maximum flow is 5L/min. Preferably it is intended for use with Multi-Cultivators and small-volume Photobioreactors. Optionally the system can hold up to four channels.

Optional Features and Accessories

Regular Preventive Maintenance of the GMS 150 or GMS 150-MICRO (2-Channel System)
Regular general maintenance is recommended every two years. It includes: inspection, cleaning, and recalibration of the whole system system (additional surcharge may apply if replacement of faulty parts is needed).


GMS 150 Valve Recalibration
Recalibration of one valve to different flow range or different gas. The possibility of such recalibration must be consulted with PSI prior to the order.

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