Gas Mixing System GMS 150
Miscellaneous Devices for Diverse Applications
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Gas Mixing System GMS 150 can produce precise mixtures of up to 4 different gases. The flows of the individual input gases are measured by thermal mass flow meters and adjusted by integrated mass flow controllers.

Key Features

  • Automatic mixing of up to 4 gases
  • Independent regulation of each gas component
  • High accuracy for generating precise gas mixtures


  • Rapid gas blending to generate homogeneous mixtures
  • Operation in two modes: absolute mode: defined as absolute flows of individual gases relative mode: defined as relative gas concentration in % and total flow of a mixture
  • Short target gas value setting time

Gas Mixing System GMS 150


Gas Mixing System GMS 150 can produce precise mixtures of up to 4 different gases. 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. GMS 150 is typically used to control flow of air, carbon dioxide, and nitrogen. Additional gases like nitrogen dioxide, carbon monoxide, methane, ammonia, helium and others can also be added to simulate various technological mixtures or smokestack gases. GMS 150 mass flow meters and controllers can operate gas flows ranging from 1 ml/min to 1,000 l/min. Flow ranges are controllable from 2 % to 100 % of total flow value. The controllers of GMS 150 can be calibrated on maximum flow range according to customer requirements. GMS 150 can be used as a stand-alone instrument and operated locally via front panel display. The required gas mixture can be defined either by setting the absolute flows of individual gasses (e.g. 980 ml/min of air and 20 ml/min of CO2) or by setting the required relative composition of the final gas mixture (2 % CO2 in air) and the total gas flow (1,000 ml/min).


GMS 150 can also be coupled with the PSI Photobioreactors, Multi-Cultivators, or FytoScopes. Standard version of the device designed for laboratory scale systems (PBR FMT 150 and MC-1000- -OD) enables the maximum total flow of 2 l/min and maximum CO2 flow rate 40 ml/min. The typical GMS version designed for large-scale facilities (e.g. PSI large-scale Photobioreactors and FytoScopes) allows the maximum total flow 20 l/min for channel 1 and 400 ml/min for channel 2.

Newly, PSI introduces 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).


Technical Requirements for Device functioning


  • 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.



Applications


  • Research and industry
  • Algae biotechnology
  • Mixing of gases for analytical research
  • Preparation of gas mixtures for production purposes


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.


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.

Specifications



Gas Mixing 150


Measuring Principle:
Thermal mass flow measurement

Accuracy (Incl. Linearity):
±0.5% Rd plus ±0.1% FS (±1% FS for ranges 3 – 5 ml/min; ±2% FS for ranges < 3 ml/min)

Minimum Possible Flow for Each Channel:
2% of total flow

Flow Ranges:
min. 0.02 – 1 ml/min / max. 20 – 1,000 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)

Setting 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 – 5 bar

Operating Temperature:
15 – 50 °C

Input / Output Connectors:
Parker Prestolok (6 mm)

Seals:
Viton

Display:
8 × 21 characters LC display

Dimension:
37 × 28 × 15 cm

Weight:
7 kg

Power Supply:
115 – 230 VAC



Gas Mixing 150 MICRO


Measuring Principle:
Thermal mass flow measurement

Accuracy (Incl. Linearity):
±1.5 % Rd plus ±0.5 % FS

Minimum Possible Flow for Each Channel:
2 % of total flow

Flow Ranges:
min. 0.2 – 10 ml/min max. 0.1 – 5 l/min (maximum flow range of controllers calibrated according to customer requirements)

Media:
Dry, clean, non-explosive and non-corrosive gasses

Repeatability:
For flows <20 ml/min: ±0.5 % FS; for flows >20 ml/min: ±0.5 % RD

Setting Time:
1 second

Temperature Sensitivity:
zero: <0.01 % FS/°C; span: < 0.02 % FS/°C

Attitude Sensitivity:
max. error at 90° off horizontal 0.5 % 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

Display:
8 × 21 characters LC display • Dimension: 37 cm× 28 cm× 5 cm

Weight:
5 kg

Power Supply:
115…230 VAC


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Optional


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 (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.

Pricing


Gas Mixing Systems
Version Characteristics Price
Gas Mixing System GMS 150 The standard version GMS 150 includes two channels (channel 1 for CO2; channel 2 for for Air-N). Preferably it is intended for use with PSI Multi-Cultivators, small-volume Photobioreactors, large-volume Photobioreactors and Growth Chambers. 18,680 €
Gas Mixing System GMS 150-MICRO GMS 150-MICRO includes two channels (channel 1 for CO2; channel 2 for for Air-N); its maximum flow is 5L/min. Preferably it is intended for use with Multi-Cultivators and small-volume Photobioreactors. 5,990 €

Optional Accessories

Additional Channel to Gas Mixing System GMS 150 * One additional channel. 3,500 €
Additional Channel to Gas Mixing System GMS 150-MICRO * One additional channel. 490 €
Battery Pack * Useful supplement to the Handy Version FluorCam for comfortable field experiments. Weight 3.6 kg. Bag size 22 x 20 x 13 cm. 2,400 €
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. Enquire for price
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 (additional surcharge may apply if replacement of faulty parts is needed). 980 €