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During operation, the steam generator of metal samples "Aspect" provides control of all devices of the atomic emission spectral analysis complex - the MAES analyzer, the Ball Lightning generator, the inclusion of external devices; A spark unipolar discharge is excited between a tungsten counterelectrode and the surface of the test samples - ingots of precious metals or other metal samples; The intensity of erosion of the sample surface is regulated by changing the repetition frequency and power of spark pulses generated by a computer-controlled semiconductor spark generator; The stability and quality of the frisking is monitored using a built-in spectrometer via optical fiber; An adjustable flow of high-purity argon passes through the spark discharge zone in a sealed discharge chamber, picks up sample particles obtained by spark erosion of the surface and transfers them in the form of an aerosol to the area of the mixer/sprayer of the inductively coupled plasma torch of the optical emission spectrometer.; The flow of high-purity argon is supplied, controlled and regulated by a microprocessor-controlled mass flow controller in the range from 0.5 to 3 l/min. Feed stability 0.01 l/min.

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 nitrogen generator is designed to create an inert atmosphere, fill low-pressure tanks, "wash" test tubes with inert gas and other applications that require a large, by laboratory standards, nitrogen consumption with reduced requirements for its purity. Technical specifications Volume fraction of nitrogen is not less than 99.5 % by volume (including impurities of inert gases — argon, neon, helium) Volume fraction of oxygen is not more than 0.5 % vol. Volume fraction of water vapor is not more than 0.002 % vol. (20 ppm) Maximum nitrogen capacity: at an inlet air pressure of 8 ati is at least 600 l/h (10 l/min) at an inlet air pressure of 6 ati is at least 480 l/h (8 l/min) The time of setting the operating mode for single-shift operation is no more than 30 min Nominal inlet air pressure is 8 ati Maximum allowable inlet air pressure is 8.5 ati Minimum inlet air pressure is 7.5 ati Compressed air consumption, at nominal inlet pressure and maximum flow rate is no more than 3600 l/hour (60 l/min) Overall dimensions, (width x depth x height) are not more than 230x580x680 mm Weight is not more than 32 kg Working conditions: ambient temperature, C°, is 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

A nitrogen station is a set of equipment for the production and supply of high—pressure gas obtained from atmospheric air by short-cycle heat-free adsorption. Unlike the adsorption plant, the station is equipped additionally with a booster compressor that creates the necessary pressure putting the squeeze on the compressor. High-pressure nitrogen adsorption stations produce production gas of any purity with a pressure of up to 500 bar, as well as gas filling in cylinders. The performance of the equipment is determined by the customer's requirements. Provit specialists will help you to choose the equipment and calculate the price. The standard warranty is 12 months from the date of commissioning. Nitrogen station composition: Air compressor Dehumidifier Main Filter Block Air receiver Adsorption generator Receiver High-pressure booster compressor putting the squeeze on

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.

The metering valve for the introduction of gas samples is designed for the introduction of gas under excessive pressure into the chromatograph. Cranes differ in the number of moves (4, 6, 8, 10, 12) and have two provisions "Selection" — "Analysis". In addition to dosing, cranes can be used to switch chromatographic columns, elements of gas circuits, etc. The tap can be installed either on the side panel of the chromatograph, or directly into the analytical module instead of, or together with the evaporator of the chromatograph, while it is used as a back-purge tap or for hot sample entry. Additionally, the tap for hot entry can be equipped with heated pipelines. technical specifications The dose volume is from 0.25 to 5.0 ml (at the request of the consumer, the dose volume can be increased to 10 ml and reduced to 0.1 ml). The maximum temperature of the tap is no more than 160 °C. The pressure in the crane line is not more than 0.48 MPa. The angle of rotation of the crane handle — depending on the number of strokes.

To switch the nozzle columns, conventional taps (reverse purge, 6-, 8- and 10-port) are used, which, however, are not suitable for switching capillary columns. An alternative way to switch capillary columns is to change the flows in the capillary columns, which is produced by the so-called "Dins switches" (PD). TECHNICAL CHARACTERISTICS of PD The switching time setting range is from 0.1 to 999 min. Switching time is 0.1 s. The dead volume of the crane is less than 1 µl. The temperature of the tap is no more than 350 °C. The pressure in the crane line is not more than 0.4 MPa. Electric power supply — 5 V.

Selective detector for phosphorus and organosulphide compounds. It is used mainly for the analysis of sulfur-containing substances (hydrogen sulfide, mercaptans, thiophenes, etc.). The sensitivity for sulfur reaches 0.1. ppm. In addition, PFD has sufficient sensitivity and selectivity to compounds containing nitrogen, boron, tin, chromium, selenium, germanium, as well as CO, POPS, MgOx, $02, Ma, NOT C52. The selectivity of 5-containing compounds to hydrocarbons is 105. Technical characteristic: 8,0*10-13 g5/s by sulfur 1.0*10`13 g/s for phosphorus

Selective detector for organochlorine compounds and other halogens. It is also sensitive to compounds containing oxygen, phosphorus or aromatic rings, but to a lesser extent. Paraffins and simple hydrocarbons almost do not capture electrons and are not registered. The selectivity to hydrocarbons is 108. It is available in two versions — conventional EDD and micro-EDD, mainly for capillary columns (the second version is characterized by increased sensitivity). The level of fluctuation noise is up to 300 MV, the maximum signal is up to 5 V, the design of the ECD allows the use of argon, helium, and hydrogen as a carrier gas, in addition to nitrogen. Technical characteristic: 4.0*10-15 g/s for lindane

When determining the total gas content (air) and humidity of transformer oil, direct injection of transformer oil into the evaporator of the chromatograph is used. The sample volume is up to 25 µl, the evaporator temperature is 250-350 °C. The main problem with such an input is the protection of the chromatographic column from transformer oil. For this purpose, a special evaporator is used with the possibility of oil accumulation at the bottom of the evaporator and its subsequent discharge, and a replaceable pre-column that protects the column from oil residues that have passed the evaporator. technical specifications The volume of the evaporator is 10 ml. The number of replaceable pre—columns in the device kit is 5. The temperature of the evaporator is from 250 to 350 °C. The possibility of draining the transformer oil accumulated in the evaporator.

Selective detector for organophosphorus and nitrogen compounds. It is also sensitive to compounds containing C, Az, but to a lesser extent. The sensitivity depends on the number of heteroatoms in the molecule. Selectivity to hydrocarbons is 104 for nitrogen, and 105 for phosphorus Technical characteristic: 2.0*10-13 m/s nitrogen 1.5*10`14 g/s for phosphorus

It operates in the mode of a helium ionization detector (GID) and is considered the most sensitive device for determining permanent gases. In addition, it is able to work in the EDD mode. Technical characteristic: 2.0*10`13 g/s by. methane or hydrogen