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GCHA-120 nitrogen generators are designed to produce in laboratory conditions nitrogen of the highest purity that is used to power analytical instruments, boxes with an inert atmosphere. Technical specifications The grade of nitrogen produced according to GOST 9293-74 is high purity, grade I Volume fraction of nitrogen is not less than % by volume (including impurities of inert gases — argon, neon, helium) 99.999 Volume fraction of oxygen is not more than, % vol. 0.0005 (5 ppm) Volume fraction of water vapor is not more than, % vol. 0.0007 (7 ppm) Volume fraction of hydrogen is not more than, % vol. (ppm) 0.0002 (2 ppm) The volume fraction of the sum of carbon-containing compounds in terms of methane is not more than, % vol. (ppm)* (with a methane content in the supply air of not more than 4 ppm) 0.0003 (3 ppm) Maximum nitrogen capacity is at least 120 (2.0 l/min), l/h Nominal nitrogen output pressure (with the throttle open) is 4 ati The time of setting the operating mode for single-shift operation is no more than 45 min Nominal inlet air pressure is 6 ati Maximum allowable inlet air pressure is 8 ati Minimum inlet air pressure is 5.5 ati Compressed air consumption, at nominal inlet pressure and maximum flow rate is no more than, l/h, 3600 (60 l/min) Power consumption is not more than, VA, 100 Overall dimensions, (width x depth x height) are not more than, mm, 230x580x680; Weight is not more than, kg 32 Working conditions: ambient temperature, C°, from +10 to +35 Electric power supply from single-phase AC mains voltage, V, 220± 10% and frequency, Hz, 50 ± 1 Average full service life is at least 6 years The generator for electrical safety meets the requirements of Class 1, type H according to GOST 12.2.025-76

Technical characteristics: DETECTOR - TYPE OF CHROMATOGRAPH - DETECTION LIMIT, G/S (G/ML) -STANDARD DEVIATION, % - LEVEL OF FLUCTUATIONAL NOISES, A (V) -DRIFT, А/H (V/H) FID Crystall-2000 5×10⁻¹² 2 2×10⁻¹⁴ 4×10 ⁻¹³ TCD Crystall-2000 (5×10⁻⁹) 2 (2×10⁻⁷) (2×10⁻⁵) ADC Crystall-2000 5×10⁻¹⁴ 4 1×10⁻¹² 8×10⁻¹¹ FPD-Р Crystall-2000 2×10⁻¹² 6 2×10⁻¹¹ 4×10⁻¹⁰ FPD-S Crystall-2000 2×10⁻¹¹ 10 2×10⁻¹¹ 4×10⁻¹⁰

The gas distribution panel (hereinafter referred to as the panel) is designed to connect gas nodes and blocks of various analytical instruments, including chromatographs to shop gas lines. technical specifications Inlet pressure, not more than 0.8 MPa. The output pressure is from 0 to 0.4 MPa. Gas flow rate through each channel, not less than — 1000 cm3/min.

Device for dosing of liquefied gases is made for insertion of liquids and liquefied gases under the pressure of 7 MPa into the chromatograph. Injection of liquefied gas without de-gassing is provided by cooling of valve, and it greatly reduces inaccuracy of the analysis results. Cooling temperature is set by temperature regulator. Visual control of absence of de-gassing and flow control of the analyzed fluid is provided. Dose volume is form 0.2 to 2 mcl. Valve of VICI production or dispenser valve of our own production is used directly as a sample-valve.

The separation of some substances (the classic case is the separation of oxygen and argon) requires negative temperatures of the thermostat of chromatographic columns. technical specifications The lower temperature limit of the thermostat of columns with a cooling device based on an air conditioner is minus 5 °C. The error in maintaining the temperature of the thermostat of columns with a cooling device based on an air conditioner is + 0.05 °C. The power consumption of the cooling device based on an air conditioner, no more than — 640 VA. Overall dimensions of the cooling device based on the air conditioner, (width × depth × height), no more than — 620×480× 410 mm. The weight of the cooling device based on the air conditioner, no more than 32 kg. The lower limit of the temperature of the thermostat of columns with a liquid nitrogen cryoclap is minus 100 °C. The error of maintaining the temperature of the thermostat of columns with a liquid nitrogen cryoclave (in the temperature range less than 25 °C) + 0.1 °C. The power consumption of a cooling device with a liquid nitrogen cryoclave, no more than — 10 VA. Consumption of liquid nitrogen, not more than 0.1 l/h.

The most common, universal detector that is suitable for the analysis of a wide range of organic compounds. The sensitivity depends mainly on the number of carbon atoms. In combination with a methanator, it allows the analysis of carbon oxides at the level of 0.1 Rt. The level of fluctuation noise is up to 50 MV, the maximum signal is up to 2500 V. Technical characteristic: 1.2*10712 gs/s for hydrocarbons

The pure nitrogen generator (hereinafter referred to as the generator) is designed to produce in laboratory conditions nitrogen of the highest purity that is used to power analytical instruments (chromatographs, including those equipped with an electronic capture detector, express analyzers of hydrogen content in metals, organic carbon concentration meters, sample evaporators, etc.). Technical specifications The grade of nitrogen produced according to GOST 9293-74 is high purity, grade I Volume fraction of nitrogen is not less than, % by volume (including impurities of inert gases — argon, neon, helium) 99.999 Volume fraction of oxygen is not more than, % vol. 0.0005 (5 ppm) Volume fraction of water vapor is not more than, % vol. 0.0007 (7 ppm) The volume fraction of the sum of carbon-containing compounds in terms of methane is not more than, % vol. (ppm) * (with a methane content in the supply air of not more than 4 ppm) 0.0003 (3 ppm) Maximum nitrogen capacity is not less than 60 l/hour (1.0 l/min) Nominal output pressure of nitrogen with the throttle open) is 4 ati The time of setting the operating mode for single-shift operation is no more than 45 min. Nominal inlet air pressure is 6 ati Maximum allowable inlet air pressure is 8 ati Minimum inlet air pressure is 5.5 ati Compressed air consumption, at nominal inlet pressure and maximum flow rate is no more than, l/hour, 1800 (30 l/min) Power consumption is not more than, VA, 100 Overall dimensions, (width x depth x height) are not more than, mm, 220x540x670 Weight is not more than, kg 32 Working conditions: ambient temperature, C°, from +10 to +35 Electric power supply from single-phase AC mains voltage, V, 220± 10% and frequency, Hz, 50 ± 1 Average full service life is at least 6 years The generator for electrical safety meets the requirements of Class 1, type H according to GOST 12.2.025-76

The KOV-4 type air compressor is designed to supply flame detectors of gas chromatographs with air. Technical specifications: Capacity, at least, l/min 3 Outlet air pressure, 0.25+5 MPa% Pressure stability at constant flow rate, not more than 0.0007 MPa Engine power consumption, max, VA 100 Receiver volume, l 9 Noise level, no more, 60 dBa Weight, not more than, kg 19 Overall dimensions (width×depth×height), not more than, mm 235×755×440 Single-phase mains voltage 220 V, 50 Hz

The generators are designed to supply analytically clean air to flame ionization detectors and gas analyzers. They are available in two versions depending on performance and output pressure. Thanks to the presence of a system of catalytic purification of air from hydrocarbons, the generator can significantly improve the accuracy and sensitivity of chromatographic analyses. Technical specifications Air capacity reduced to normal conditions is not less than 2.0 l/min Outlet air pressure is 355 ± 5% kPa (3.5 ati) Output pressure stability at constant flow rate is not worse than ± 10 kPa The stability of the output pressure when the flow rate changes from 0.3 to the maximum value is not worse than ± 10 kPa Output concentration of hydrocarbons is not more than 0.1 ppm Water vapor concentration at 20°C and 100 kPa is no more than 10 ppm Ready time after switching on is no more than 30 min Power consumption is not more than 200 VA Overall dimensions of the generator (width x depth x height) are not more than 230x425x510 mm The mass of the generator is not more than 18 kg Working conditions: ambient temperature, °C from +10 to +35 relative humidity of the ambient air, % 80 power supply from a single-phase network: AC voltage, 220 ± 10% and frequency, Hz 50 ± 1

The oil-free compressor is designed to supply air to laboratory nitrogen and oxygen generators, purge optical systems of laboratory devices with dry air, etc. A feature of the device is the presence of a built-in automatic regeneration system of the air drying filter, which frees the user from routine maintenance. Small dimensions, low noise level, lack of maintenance work allow the compressor to be placed in the laboratory room and make working with it easy. Technical specifications Rated output, reduced to normal conditions is 7.0 l/min Maximum output, reduced to normal conditions is 9.0 l/min The range of the set output pressure is from 1.0 to 6.0 ati Output pressure stability at constant flow rate is not worse than ± 0.2 ati Stability of the output pressure when the flow rate changes from 0.5 to the maximum value is not worse than ± 0.4 ati The dew point of the outlet air at an ambient temperature of 20 ° C and rated capacity is not higher than minus 30 ° C The dew point of the outlet air at an ambient temperature of 20 ° C and maximum performance is not higher than minus 15 ° C Volume of the built-in receiver is 6 l The noise level of the device is not more than 50 db Ready time after switching on is no more than 10 min Power consumption is not more than 600 VA Overall dimensions of the device (width x depth x height) are not more than 230x580x530 mm Weight of the device is not more than 27 kg Working conditions: ambient temperature, °C from +10 to +35 relative humidity of the ambient air, % 80 power supply from a single-phase network: AC voltage, 220 ± 10% and frequency, Hz 50 ± 1

The characteristics of the device are similar to the GVCH-12D model; the difference is in the absence of a reactor to remove traces of oxygen and the performance, respectively, is 9 / hour (150 ml/min). Optionally equipped with a reactor for using hydrogen as a carrier gas. Technical specifications Purity of hydrogen in terms of dry gas is about 99.998% Concentration of water vapor at 20 OC and 1atm is no more than 5 ppm In the output pressure stabilization mode The range of the specified output pressure of hydrogen is from 1.5 to 6.1 ati Stability of the output pressure of hydrogen is not worse than ± 0.02 ati Maximum hydrogen capacity reduced to normal conditions is 9 l/h The time of setting the operating mode, with the output turned off is no more than 15 min In the performance stabilization mode: The range of the specified hydrogen performance is from 0 to 9 l/h Maximum developed pressure in performance mode is 5.0 ati Volume of distilled water to be poured is 1.0 l Distilled water consumption is no more than 0.015 l/hour Water consumption is 1.6 g/l of hydrogen The average life of a replaceable deionization filter cartridge (at maximum performance and single-shift operation) is at least 1 year Average power consumption: in stationary mode is no more than 80 VA maximum (at startup) is no more than 100 VA Overall dimensions of the generator, (width x depth x height) are not more than 230x470x450 mm The mass of the generator is not more than 15 kg Operating conditions: ambient temperature, °C, from +10 to +35 powered by single-phase AC voltage, V, 220 (+10 -15)% and frequency, Hz, 50 +1 The generator for electrical safety meets the requirements of Class 1, type H according to GOST 12.2.025-76