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Adsorption nitrogen plant is a set of equipment for the production of nitrogen from atmospheric air by short–cycle heat-free adsorption at a pressure of up to 13 bar. The adsorption nitrogen plants of the Provita company allow to produce nitrogen with a purity of up to 99.9999%. The capacity of the plants ranges from several liters per minute to hundreds of cubic meters per hour. The basis of the installations are nitrogen adsorption generators developed and manufactured by our company. A carbon molecular sieve with a developed microporous structure is used as an adsorbent. The gas generator requires dry compressed air with a pressure of at least 6 bar to operate, so the installation includes an air compressor, as well as a dehumidifier and an air receiver (if they are not part of the compressor). The source air must be cleaned of dust and oil, which is carried out by the main filters included in the installation or directly by the nitrogen generator. The nitrogen receiver is used for the accumulation of production gas.

The MX-10 magnetometer is an auxiliary tool for conducting magnetic powder control using permanent magnets, rectified current electromagnets by the applied field method, as well as for monitoring by the residual magnetization method according to the requirements of the current regulatory documentation. The MX-10 magnetometer meets the requirements in the field of non-destructive testing for the main industries: nuclear, energy, oil and gas complex, general and special engineering, railway transport, aerospace industry, elevator and crane facilities, etc. Magnetometer MX-10 is an electronic measuring unit with a remote measuring converter, which is based on the Hall effect. The design of the device allows measuring both the normal and tangential component of the magnetic induction vector directly on the surface of the part. The measured value of the magnetic field induction value is displayed on the digital indicator of the electronic unit. Features and Benefits The updated version of the MX-10 magnetometer has a modern element base, which has significantly improved its performance, reduced error and expanded the measurement range (see the Table of Technical characteristics). The device is capable of operating in two modes: Constant measurement mode. This is convenient when carrying out a large number of measurements over a short period of time. Automatic shutdown mode 1 minute after measurement. It allows you to save the charge of the device, which is especially important in the field. A thermal compensation circuit ensures stable measurement readings at any temperature change. Other features include: The small dimensions of the Hall measuring transducer for the MX-10 magnetometer make it possible to measure the induction of the magnetic field in grooves, grooves, angular transitions, i.e. in those areas of the controlled product that are stress concentrators and are most dangerous from the point of view of cracking; A wide range of measurements of the magnitude of the magnetic field induction; The smallest measurement error among analogues in the entire operating temperature range; Convenience of measurement by a remote measuring transducer in various planes; Low power consumption and, as a result, long working time; Low cost compared to similar models on the market; Compact dimensions; Manufacturer's warranty – 12 months; The device is included in the state register of measuring instrument RU.C.27.004.A No. 36079 dated 01.09.2009 and has undergone a verification procedure. Magnetometer MX-10 (milliteslameter) it is also included in the register of measuring instruments, test equipment and measurement methods used in JSC "Russian Railways". Scope of application 1. Verification of the magnetization modes of controlled parts using permanent magnets, rectified current electromagnets by the applied field method, as well as during the control by the residual magnetization method, by measuring the tangential and normal components of the magnetic field strength vector at one or more points on the surface of these parts. The number of points at which the magnetic field strength is measured and their location on the controlled surface depend on the shape of the part, as well as on the type and design of the magnetizing device used. 2. Control of the magnetization of parts before welding. During electric arc welding of non-magnetized parts, the effect of "magnetic blowing" is observed, i.e. the deviation of the electric arc from the axis of the electrode, the wandering of the arc end along the product, which leads to metal splashing during welding, deterioration of the seam quality. Therefore, before welding, it is necessary to measure the level and direction of magnetization of the parts and demagnetize them if necessary. 3. Verification of the residual magnetization after magnetic powder inspection. Demagnetization and verification of the residual magnetization of responsible, rubbing parts, as well as parts in contact with them after assembly, is prescribed in the requirements of the IPC and is a technological stage of control. 4. Magnetization control before assembling various structures. Magnetized parts can affect the operation of automation devices, cause errors in the readings of instruments, equipment. Magnetization can cause the accumulation of wear products in the movable joints, cause a negative effect on subsequent technological operations. Due to possible undesirable consequences, the parts are demagnetized and the quality of their demagnetization is checked. 5. Control of gas and water meters. Housing and utilities enterprises may also be interested in the device. It is known that existing gas or water flow meters can be easily "deceived" with the help of strong permanent magnets that reduce the rotation speed of the flow sensors. There are different ways to detect such theft. One of them is the control of the residual magnetization of the counters using magnetometers. The measured value should not significantly exceed the Earth's magnetic field, otherwise it can be concluded that there was unauthorized interference with the operation of the device. Main technical characteristics Measuring range, MT from 0.1 to 100 The limits of the permissible basic absolute measurement error, MT D = 0.02 VI + 0.05, where VI is the magnetometer readings in MT Power supply battery type: PP3 (nine-volt battery) Consumption current, mA, no more than 15 Duration of continuous operation (from fully charged batteries), h, at least 20 Overall dimensions, mm: – electronic unit (LxWxH) 120x60x25 – Measuring transducer (Diameter x Length) 18x173 Weight, g, not more than 160 Ambient operating temperature, °C -10...+40

NV-1200 Lv are laboratory tables with a metal frame and a tabletop width of 1090 mm. They are designed for standing work (table height — 850 mm). The NV-1200 tables have a metal frame painted with durable powder paint. The side laminated panels (chipboard 16 mm thick) are edged on the facade with a 2 mm PVC edge, which increases their impact resistance and mechanical strength. The legs of the table are adjustable in height within two centimeters, allowing you to place it even on a rather uneven floor. Dimensions of the table when assembled (W×D ×H): 1090×700×850 mm. The working surface for your tasks We offer laboratory tables with various working surface materials. Version: Countertop NV-1200 LLv: Laminate. An inexpensive solution, suitable for school chemistry and physics classrooms, office work, placement of devices. NV-1200 LSPv: Chemically resistant plastic. A good choice for training workshops, analytical and medical laboratories. It does not tolerate high temperatures, heating devices should not be placed on the surface. NV-1200 LKv: Porcelain tile. A practical solution for most chemical, biological, medical laboratories and workshops. You can put drying cabinets, baths and other heating devices on it. NV-1200 LPv: Polypropylene. A specialized solution for chemical laboratories working with inorganic solvents. NV-1200 LNv: Stainless steel. Stainless steel is well suited for biological or medical laboratories, but it is not recommended for use in chemical laboratories. It has limited resistance to short-term exposure to concentrated mineral acids and alkalis and is destroyed by prolonged exposure to concentrated acids. Advantages of NV-1200 Lv tables An inexpensive solution for laboratories that value the reliability and durability of furniture; Suitable for small rooms; Heating plates or baths can be placed on the granite surface resistant to high temperatures; It is convenient to work while standing: the height of the working surface is 85 cm. Application of NV-1200 Lv tables Tables of the NV series are used in laboratories of the widest profile: at food and light industry enterprises, in scientific and educational workshops, in chemistry classrooms, quality control centers, medical organizations and many others.

The service life of the furnace at a temperature of 1800 OC is not less than 500 hours; number of thermal cycles, not less than 100

The volume of the bath is 5 liters Overall dimensions 420x280x500 mm The open part of the bath is 230x235 mm Weight 7.5 kg

Technical specifications: The operating frequency range of the monitored signals is from 9·103 to 3·109 Hz The analyzer has a zero band and a viewing band in the range from 100 Hz to 3 GHz Limits of permissible error of setting the viewing band ± 1 % The scan range is set from 10 ms to 3000 s in all modes except the zero band of view, and from 20 microseconds to 3000 s in the zero band of view mode The bandwidth of the RFP at the level of minus 3 dB is selected in the range from 100 Hz to 1 MHz in increments of 1, 3, 10 The squareness coefficient of the FPC at the level of minus 60 dB / minus 3 dB is not more than 5:1 The reference level setting range is from plus 30 dBm to minus 100 dBm. Installation step 1 dB Limits of the permissible basic error of setting the reference level ± 1 dB The limits of the unevenness of the amplitude-frequency response (frequency response) of the analyzer in the frequency range from 100 kHz to 3 GHz ± 1 dB Maximum allowable input power is 30 dBm (1 W) Limits of the permissible basic error of measuring the signal level due to the nonlinearity of the logarithmic scale ± 1 dB Limits of the permissible basic error of measuring the signal level due to switching of the input attenuator ± 1 dB Limits of error in measuring the signal level due to switching filters, ± 0.2 dB relative to the 1 kHz filter The average level of intrinsic noise at the FPC bandwidth of 100 Hz, the video filter band of 10 Hz and the input attenuator of 0 dB: - in the range from 100 kHz to 20 MHz minus 75 dBm - in the range from 20 MHz to 1.5 GHz minus 110 dBm - in the range from 1.5 to 3 GHz minus 105 dBm The input impedance of the analyzer is 50 ohms The voltage standing wave coefficient (VSWR) of the input with an input attenuator greater than 10 dB, no more: - 1.5 in the frequency range from 10 MHz to 2.5 GHz - 1.8 in the frequency range from 2.5 GHz to 3 GHz Diagonal screen size 21.5 cm Screen resolution 800x480 USB interface Overall dimensions – 398x220x150 mm Weight not more than 6.5 kg

Design features: Special system of air intake and exhaust of combustion products with adjustable thrust; Programmable microprocessor temperature controller; Three programs of ten steps with the ability to set the temperature, heating speed and holding time for each step; Manual heating mode with timer with sound notification and auto-off; Durable ceramic muffle; Closed heaters on four sides of the chamber; Backlit graphic display; Conveniently located control panel; Automatic shutdown of heating when opening the door; Sound and light alarm when the current temperature exceeds the limits of the permissible interval; The door opens up and faces the user with the cold side; Highly efficient thermal insulation of the housing; The furnace body is made of high-quality sheet steel and painted with heat-resistant powder paint. Technical specifications: Maximum heating temperature, °C +1100 Temperature stability in steady-state thermal mode, °C ± 10 Warm-up time to the maximum temperature, no more than 120 min Dimensions of the working chamber, WxHxD, not less than 200x150x290 mm Overall dimensions, WxHxD, not more than 525x1015x620 mm Rated supply voltage, 220 V Rated power, W 5500

Provides complete tightness during transportation of biological material. The material of the container is polypropylene, the lid is polyethylene. It has a graduated and frosted window for recording. Non-sterile.

The potassium salt of ethylenediaminetetraacetic acid (EDTA) is the preferred anticoagulant for hematological studies. Gel is a special material designed to form a stable barrier between the cellular components of blood and serum during centrifugation. Material for research............... EDTA-blood, plasma Scope of application............................ hematological examination of whole blood