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.

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, 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 (customized version). 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 CO 2 ) or by setting the required relative composition of the final gas mixture (2 % CO 2 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 CO 2 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 10 or 20 l/min for channel 1 and 400 or 800 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 flows ranging from 10 ml/min to 2.5 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 CO 2 ); the maximum total flow is 2 l/min (channel 1), the maximum flow rate of channel 2 is 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 CO 2 (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

Technical Requirements for Device functioning

CO 2 (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.

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-N 2; channel 2 for CO 2 ). 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-N 2; channel 2 for CO 2 ); its maximum flow is 2.5 l/min. Preferably it is intended for use with Multi-Cultivators and small-volume Photobioreactors. Optionally the system can hold up to four channels.

Gas Mixing System GMS 150

Gas Mixing System GMS 150-MICRO

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: Max. total flow rate: 2 or 10 or 20 l/min typically (customized max. flow rate between 1 ml/min – 1,000 l/min) Min. flow rate: 2% of the max. flow rate

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