Eddy current flaw detector VD-70

The magnetic particle testing stand has a simple switch between circular and longitudinal magnetization modes, as well as easy movement and fixation of the solenoid and electrical contact for locating the test object in the working area of ​​the stand. Clamping of the controlled part during circular magnetization occurs in one movement. The stand can be installed on a stationary or mobile magnetic particle testing station. For ease of inspection after magnetization, a tray with a removable protective grid is provided. The protective rear wall protects against the spread of spray splashes outside the working area.

The flaw detector allows continuous monitoring of polymer, epoxy and enamel coatings of pipelines with a diameter from 219 to 1420 mm and selective control of polymer, epoxy, enamel and bitumen coatings of pipelines of any diameter. The flaw detector provides detection of local through defects of insulation coatings of pipelines with a dry surface. The flaw detector allows for continuous monitoring The flaw detector uses an electric spark control method. The flaw detector is designed to work at: - ambient temperature, °C: from minus 30 to plus 50; - relative humidity at a temperature of +25°C, %: 98; - atmospheric pressure, kPa: from 84.0 to 106.7. Technical specifications. Test voltage, kV: up to 40 Minimum diameter of detected defects, mm: 0.6±0.2 Operating temperature range, °C: -30...+50 Power supply -from the built-in 12V battery -from an external DC power supply current with a voltage of 12 V Continuous operation time, h: 8 Operating mode setting time, min: 1 Overall dimensions, mm, no more: - control and monitoring unit 200 x 158 x 91 - high voltage transformer 410x f90 Weight, kg, no more,: - control and monitoring unit 2.5 - high voltage transformer 1.5 Defect alarm light and sound The kit includes: Bag Suitcase Battery charger Earthing device Electronic Magnet Unit Probes for continuous monitoring- 5 pcs 0 – 400 mm; 1 – 650 mm; 2 – 735 mm; 3 – 840 mm; 4 – 980 mm. Probes for local control - 3 pcs VT-1 High voltage transformer Pin Probe extension Holder Bushing Nipple - 4pcs set of documentation (passport, manual, calibration)

Technical characteristics of PipeScope 60-170 Pipe inspection time in the installation is no more than 30 seconds The diameter range of controlled pipes is 60 mm – 170 mm The range of wall thicknesses of controlled pipes is up to 20 mm The length of the controlled pipes is 1..13 m The maximum time of continuous operation per day is up to 24 hours Rated power supply voltage is 50 Hz, 220 V The working gap between the sensor and the control object is up to 0.5 mm Operating temperature range is -40 °C... +40 °C The number of measuring channels for searching for defects using the magnetic flux scattering method is up to 128* The number of measuring channels for defect detection and thickness measurement using the flow density measurement method is up to 96* Pipe diameter measurement error 0.05% The measurement error of the length of the controlled pipe is 10 cm The possibility of demagnetization of the pipe after control in automatic and manual modes is availiable The coverage of the continuity of control along the perimeter of the pipe is 100% The changeover time of the installation to another BT standard size is no more than 30 minutes. The speed of movement of the flaw detector trolley through the pipe is from 0 to 0.9 m/s Power consumption is up to 1 kW Installation weight  Trolley with basket — no more than 11 kg Magnetization coil — no more than 10 kg Air lift — no more than 72 kg Minimum size of detectable defects In accordance with DS-1 Minimum signal-to-noise ratio for drilling with a diameter of 1.6 mm In accordance with DS-1 The error in determining the linear coordinate of the defect is not more than 5 cm The error in determining the angular coordinate of the defect is no more than 4 degrees ° Installation control complies with the following standards in terms of its characteristics: API Spec 5D, API RP7G, DS- 1 Overall size and weight of PipeScope 60 — 170 Ultra Pro in transport containers without SOP and without pneumatic lifts 600 mm X 600 mm X 600 mm / 32 kg Overall size and weight of the air lift in a transport container is 1300 mm X 300 mm X 300 mm / 72 kg Overall size and weight of the SOP in a transport container is 1900 mm X 210 mm X 210 mm / 60 kg

The device allows you to detect surface defects like cracks, visualizing the signal from the continuity interruptions on the display. The design of the flaw detector allows to determine with high reliability the exact location and depth of defects even on rough surfaces of flat and curved shape, including under a layer of corrosion or in the presence of a protective coating of the controlled area of the product with a thickness of up to 3 mm. The principle of operation of the VD-12NFP eddy current flaw detector: The principle of operation of the VD-12NFP eddy current flaw detector is based on the phenomenon of electromagnetic induction. An alternating magnetic field created in the primary coil of the converter by means of a sinusoidal voltage generator excites eddy currents in the controlled product. A parasitic magnetic field formed by eddy currents at the locations of defects affects the measuring unit (two signal coils connected in series) of the converter, creating an electromotive force in it. The amplitude and phase of the secondary signal carries information about the properties of the defect and the position of the transducer relative to the surface of the controlled product. The output signal from the measuring unit of the converter, after amplification and processing using a microprocessor, is displayed on the readout of the device, and is also stored in the memory block for subsequent transmission to a personal computer. In addition, information about the defects is displayed on a piezoelectric bell used as an audio indicator. Design, features and advantages of the VD-12NFP eddy current control device: The VD-12NFP eddy current flaw detector is a portable device capable of working both in a desktop and in a suspended position in a special bag-case. This ensures convenient operation of the device in a variety of conditions: in the laboratory, in the factory shop or during field tests. The flaw detector consists of an electronic unit with controls and display of test results, as well as three replaceable converters with wear-resistant corundum tips connected to the electronic unit using a connector. The choice of the desired converter depends on the magnetic properties of the material. For the control of parts with grooves, a converter with an inclined tip is offered. The device is powered by 4 AA batteries located in the battery compartment of the electronic unit. The advantages of the flaw detector include: - a screen for visualizing the signal during measurement; - light weight and compact dimensions that allow you to use the device in almost any conditions; - the ability to control the quality of products of various curvature and surface roughness even in the presence of a protective coating or a layer of corrosion; - wear resistance of converters, which is important when monitoring products with increased surface roughness (up to Rz£320); - automatic detection of the type of converter when connected, as well as the presence of built-in memory for storing control results; - the possibility to transfer data to a personal computer for storing or printing control protocols. Scope of application: Portability, high productivity, the ability to work with curved and rough surfaces, as well as the fact that the operation of the flaw detector is practically unaffected by humidity, pressure and contamination of the gas environment or the surface of the controlled product with non-conductive substances ensure the versatility of the device for detecting cracks in various materials. The eddy current flaw detector VD-12NFP is actively used in heavy industry for diagnostics of metal structures, assemblies and mechanisms for various purposes in factory workshops or laboratories, including at enterprises of railway transport, automotive industry, mechanical engineering, pipelines and metal structures. The VD-12NFP flaw detector can be used with equal success in the field, factory workshops, depots, laboratories and workshops to monitor the current condition, as well as to assess the degree of wear, the possibility and duration of further operation of such products made of metals and alloys as over-spring beams, wagon wheels, auto coupler housings, side frames, wheel couples and others. Distinctive features: • control of parts with surface roughness up to Rz320 due to wear-resistant corundum tips; • assessment of the degree of danger (depth) of the defect; • automatic detection of the converter type; • microprocessor control; • 5 universal programs for saving settings; • capable of detecting defects with a depth of 0.3 mm • The angle of deviation of the converter from the normal to the working surface up to 60° • Operating frequency of 70 kHz; • Maximum working clearance of 3mm; • visualization of the signal from the defect; • built-in memory for storing control results • Equipped with a Bluetooth 2.0 wireless communication module, which allows you to transmit control results and control the flaw detector at a distance of up to 20m; • The possibility of forming a control protocol based on the data transmitted to the PC; • Temperature range from 0°C to +40°C; • The design allows you to work with the flaw detector without removing it from the bag-case. Basic kit: Ia5.173.016: 1 electronic unit Ia5.125.031: 1 converter, type 1; marked as (•) Ia5.125.030: 1 converter, type 2; marked as (••) Ia2.706.002: the KOIDZ-VD set of samples with a passport (consisting of: Ia8.896.034: 1 piece; Ia8.896.035: 1 piece; Ia8.896.035-01: 1 piece) - A certificate of verification. 4 AA batteries 1 charger 1 small-sized phone 1 CD with software 1 special key 1 bag-case A calibration certificate is issued for the VD-12NFP flaw detector. 1 passport 1 operating manual 1 calibration instruction

The UNM-1000 allows to detect internal, subsurface and surface defects of different types (cracks, flokens, delaminations, defects of welding seams, etc.) in parts, structural elements, units and mechanisms of industrial units, railway, auto, air vehicles, as well as petrochemical, gas and technological equipment during the manufacturing and repair stages or during routine inspections of the products being in operation. The principle of operation of the UNM-1000 AC flaw detector The magnetic powder method of detecting defects in products made of ferromagnetic materials is based on the ability of magnetic powder particles to settle in the defect zone, where inhomogeneities of the magnetic field created by the magnetizing device arise. Unlike devices based on permanent magnets, magnetic particle flaw detectors allow you to set the current and time of magnetization and automatically demagnetize controlled samples. The UNM-1000 AC flaw detectors allow monitoring of products by the applied field method using various magnetization techniques. To do this, the alternating electric current generated by the flaw detector can be passed through a magnetizing cable or directly through a controlled product connected to the flaw detector using electrical contacts. The value of the current used for magnetization and demagnetization of the product is set by the operator of the device. Design features and advantages The UNM-1000 flaw detector is a portable device, which allows you to control the quality of products made of ferromagnetic materials both in production and in laboratory conditions. The basic set of equipment for magnetic particle flaw detection includes a UNM-1000 magnetizing device, a power cable for power supply from a single-phase AC network with a voltage of 220 V, and technical documentation. At the request of the customer, electrical contacts and a magnetizing AC cable can be additionally supplied. The advantages of the UNM-1000 device of the MANUL series include: the possibility of monitoring both in the applied magnetic field with longitudinal magnetization using power cables, and with circular magnetization by passing current through the controlled product; wide range of magnetization current adjustment from 50 to 1000 A; automatic demagnetization of controlled products; high performance; the device is compact and has light weight; the degree of protection from external influences is at least IP40. Scope of application of magnetic particle control means Due to its versatility, simplicity and ease of operation, the UNM-1000 magnetic particle flaw detector can be used in almost all non-destructive testing laboratories of workshops and assembly shops of the automotive and aviation industries, railway transport, for the needs of civil and military shipbuilding. Also, the UNM-1000 magnetic powder control device can be successfully used in the energy sector, in the production of pipelines, metal structures, construction equipment and related industries. Technical characteristics of the portable magnetizing device UNM-1000 fully complies with the requirements of the following standards: GOST R 56512-2015, GOST R 53700-2009 (ISO 9934-3:2002), GOST R 50.05.06-2018, GOST R ISO 10893-5-2016, GOST ISO 17638-2018, RD 34.17.102-88, RD-13-05-2006 , as well as other national and foreign regulations documents on standardization of magnetizing devices and flaw detectors for magnetic powder control. Technical specifications • Magnetization current: up to 1000A (RMS), 4.3V,50 Hz • Demagnetization mode • Weight: no more than 20kg • Overall dimensions (W×H×D): 290×160×450 mm • The device is powered by 220V, 50 Hz

The principle of operation of the means of magnetic particle control The portable device UNM-2000/6000 of the MANUL series is a magnetic particle flaw detector that provides measurements by the applied field method and the residual magnetization method using direct, alternating and pulsed current with specified parameters. External magnetizing devices included in the kit (solenoids, electromagnets, contact devices for connecting cables) allow for longitudinal, transverse and circular magnetization of the object under study. A special magnetic powder, dry or in the form of an emulsion, is applied to the controlled surface. Inhomogeneities of the magnetic field in the places of defects lead to the accumulation of powder particles, thus "showing" a hidden picture. Design features and advantages of the UNM-2000/6000 powder flaw detector: In the MANUL series, the UNM-2000/6000 device is capable of providing the highest magnetization current (up to 6000 A in pulse mode), which allows you to control products having a large mass or size, as well as those made of magnetohard alloys; The device can be included in automated quality control stands: there are network interfaces (LAN, Bluetooth, Wi-Fi) for connection; microprocessor control provides storage and reproduction of magnetization and demagnetization parameters, logging of control results, automatic demagnetization; The design is modular, allows for changes to implement the individual wishes of the customer; It fully complies with the following standards: GOST R 56512-2015, GOST R 53700-2009 (ISO 9934-3:2002), GOST R 50.05.06-2018, GOST R ISO 10893-5-2016, GOST ISO 17638-2018 , RD 34.17.102-88, RD-13-05-2006 and other Russian and foreign standards regarding the requirements for magnetizing devices and magnetic particle flaw detectors; It is approved for use by industry regulatory documents, in particular, by the Russian Railways. Scope of application Magnetic powder control devices are widely used in various industries, construction and transport, from steel and pipe rolling plants to organizations engaged in the operation and repair of machines, mechanisms and vehicles. Magnetic powder flaw detectors belong to the means of non-destructive testing and therefore can be used to detect defects in products and structures operating under pressure, including at chemical and oil and gas industry enterprises, as well as during the operation of pipelines. In particular, devices for monitoring by the magnetic powder method have proven themselves well at Russian Railways and metro enterprises engaged in the operation and repair of rolling stock, including for the control of shafts, wheels and wheel pairs, gearboxes, springs, couplers and other loaded components and parts. Technical specifications: Magnetization currents: Variable, Pulse, Rectified (only for solenoid and electromagnet) The measurement error of the magnetization current is no more than 10%. Characteristics of the pulse current: The repetition frequency of unipolar current pulses during magnetization and of multipolar current pulses during demagnetization is (2 ± 0.2) Hz. The duration of the current pulses is at least 1.5 ms. Magnetic characteristics of the solenoid: The maximum alternating magnetic field in the center of a single solenoid is at least 100 A/cm. The maximum alternating magnetic field on the axis in the center between two solenoids located at a distance of 200 mm is at least 60 A/cm. The maximum permanent magnetic field in the center of a single solenoid is at least 80 A/cm. The maximum permanent magnetic field on the axis in the center between two solenoids located at a distance of 200 mm is at least 50 A/cm. Values of magnetization currents: The maximum alternating magnetization current in the unwound cable is 6 m × 50 mm2 and on the electrical contacts is at least 2000 A. The maximum pulse magnetization current in an unwound cable of 4 m × 10 mm2 and on electrical contacts is at least 6000 A. The current adjustment range in the solenoids and the electromagnet is from 0.5 to 4.5 A. Characteristics of the electromagnet: The maximum alternating magnetic field in the air gap of the electromagnet depending on the interpolar distance is as follows: - in the 140 mm gap: at least 75 A/cm; - in the 40 mm gap: at least300 A/cm. The maximum constant magnetic field in the air gap of the electromagnet depending on the interpolar distance is as follows: - in the 140 mm gap: at least 100 A/cm; - in the 40 mm gap: at least 400 A/cm. Operating mode: The operating mode is cyclic: magnetization/pause. The magnetization time is adjustable from 1 to 40 s. The demagnetization time is adjustable from 5 to 60 seconds. Demagnetization of parts is performed automatically. The time of setting the operating mode is no more than 15 seconds. The duration of continuous operation is at least 8 hours. Power supply parameters: The device is powered by an AC power supply with a voltage of 220 V and a frequency of 50 Hz. The power consumed from the network is no more than 5 kVA. Overall characteristics: Overall dimensions of the device (w × h × d) – no more than 267×245×465 mm. The weight of the device is not more than 50 kg. Other characteristics: The average worktime before failure is at least 12500 hours. The average recovery time is no more than 6 hours. The average service life of the device is at least 10 years. Сompliance with standards The device fully complies with the requirements of GOST R 56512-2015, GOST R 53700-2009 (ISO 9934-3:2002), GOST R 50.05.06-2018, GOST R ISO 10893-5-2016, GOST ISO 17638-2018, RD 34.17.102-88 and RD-13-05-2006 in terms of the requirements for magnetizing devices and magnetic particle flaw detectors. Identification of the load. It performs automatic identification of the types of connected load: cables, solenoids and electromagnet. Control of the connected load current It allows you to control the current of the connected AC/DC electromagnets and solenoids. The kit includes: 1 Electrical contact with cable, cross section 50 mm2, length 3m 2 Solenoid cable, 3m long 3 Solenoid cable, 0.5m long 4 Magnetizing cable, cross section 10 mm2, length 6m 5 Magnetizing cable, cross section 50 mm2, length 6m 6 Solenoid - 2pcs 7 The electromagnet is manual 8 Trolley 9 Power unit UNM 2000/6000

Scope of application The VD-41P eddy current flaw detector is designed to work as part of automated quality control lines at pipe-rolling and metal-rolling enterprises with continuous output control of products together with other auxiliary devices: a paint meter, a path sensor, an object presence sensor, an automatic sorter, a demagnetizer. The device can also be used for input control at machine-building enterprises of the automotive, aviation, oil and gas, and agricultural industries. Technical specifications: Control frequencies: 1.0 – 100 kHz. Control speed (line speed): 0.5 - 5 m/s. The high-frequency filter is automatically adjustable depending on the speed. Signal phase adjustment: 0 - 359° . Converter current adjustment: 50 – 500mA. Automatic monitoring of the operability of the measuring converter. Data processing: - Software adjustable filter. - Signal evaluation using signal masks: - circular mask, - sector masks. - Sorting by control results. Display: 10.2” (26 cm) touch LCD (800x600). Operating system used: WINDOWS® 7. Dialog language: Russian, other languages (optional). Applicable eddy current converters: overhead type, through type, sector type. Interfaces: - Connector for the converter unit. - External automation control connector. - 4 outputs with delay adjustment - "dry contact". - 2 external information inputs. - VGA interface for connecting an external monitor. - USB 2.0. - Network: Ethernet (TCP/IP). - Other interfaces on special order. Power supply: 220 V, 50 Hz. Operating temperature range: 0 to +40°C. Type of climatic performance - UHL 4 (i.e. for moderate and cold climate). Enclosure protection degree: IP 53. Dimensions, w/h/d: 471 x 285 x 460 mm / can be built in a 19” rack/cabinet. Weight: approx. 20 kg.

The principle of operation of the device: The principle of operation of the flaw detector is based on the excitation of eddy currents in the controlled product and the subsequent release of a signal at the output of the converter, the amplitude and phase of which are determined by the secondary field of eddy currents. Design features and advantages of the VD-90NP flaw detector. The device has a small-sized case, which ensures its lightness, ergonomics and allows you to mount it on your belt or on your arm. The measurement is performed using a remote converter connected by a flexible cable. There are several types of converters for eddy current flaw detection of products made of different materials and different geometries. The large and bright display displays the selected operating modes and measurement results in text and graphic form. The VD-90NP is also characterized by: high sensitivity (it detects cracks starting from 0.1 mm in size); dust–and-moisture-proof housing, which makes it applicable for work in the field; large operating frequency range; maximum working clearance up to 10mm; Bluetooth connection; the ability to control products with high surface roughness, up to Rz320 class; light and sound indication of defect detection; wide operating temperature range from –30°C to +50°C; autonomous low-voltage power supply; long continuous operation time from one set of batteries; compliance with the standard GOST R ISO 15549-2009 (ISO 15549:2008). The use of a microprocessor-based hardware and software platform provide it with the following operational characteristics: automatic adjustment when measuring conditions change, including compensating the influence of the gap; built-in calibration modes; saving the measurement results in the internal memory of the device; a large number of stored programs: sets of parameters and measurement modes, both preset and saved by the user so as to repeatedly monitor the same type of products; The Bluetooth 2.0 wireless communication module allows the device to be used in conjunction with an external laptop or mobile device for remote control, transmission of measurement results for further storage, printing, documentation and analysis. Scope of application: The eddy current method is suitable for non-destructive testing and detection of microcracks in products and parts made of any metals and alloys of complex shape, with high surface roughness, through non-conductive coatings, as well as for checking welded joints. The flaw detector can be used to control parts and assemblies of aviation equipment. The VD-90NP eddy current flaw detector is used for quality control and preventive examination of: - components and parts of rolling stock at railway transport enterprises: wheel sets, auto coupler housings, side frames, spring beams, labyrinth rings, pulleys; - pipes, profiles, rods at rolling mills at the output control, and at the input control of consumers of products; - products made of aluminum and titanium alloys with multilayer coatings at enterprises of the aviation and aerospace industry; - cables, beams, critical components of equipment (cranes, lifts) in construction; - main pipelines in order to detect stress corrosion. A wide range of operating temperatures, dust and moisture protection (IP54 degree of protection), autonomous low-voltage power supply, a long time of continuous operation of the device allows it to be used in the field at low temperatures and under precipitation (rain, snow). Basic kit: • 1 electronic unit for the VD-90NP eddy current flaw detector; • 1 Ia5.125.052 (Type-2) eddy current converter; • 1 converter cable; • 1 charger with batteries; • 1 hand strap; • 1 Ia8.896.104 sample with artificial defects; • 1 Ia8.896.035 coating sample; • 1 storage and carrying case; • 1 documentation set.

The principle of operation of the magnetization device: The device consists of two compact blocks made of non-magnetic material connected by a flexible magnetic circuit. In each block there is a permanent magnet made of neodymium-iron-boron alloy (Ne-Fe-B). When installing the blocks on the surface of the part, a closed magnetic circuit is formed with the direction of the magnetizing field from one pole to the other. Above the defect scattering fields, magnetic powder particles are deposited to form an indicator pattern. Design features and advantages of the device for magnetic particle control UN-5 The delivery package with the device includes a portable case, an inter-pole jumper installed during transportation, and a liner for fixing blocks with permanent magnets. The UN-5 portable device does not require electrical power and therefore can be used where the supply of stationary power is difficult or impossible under regulatory documents: in the field, when working at height, for inspection of capacitive equipment operating under pressure, etc. - The device is easy to use, lightweight and small-sized, working with it does not require special physical and technical training from the operator; - Flexible magnetic core allows you to use the device to control parts of complex shape; - The UN-5 magnetizing device is distinguished by an increased quality of the indicator pattern and an increased control zone due to a reduced uncontrolled zone near the poles and an improved ratio of the normal and tangential components of the magnetic field (Russian patent No. 60732); - The technical characteristics of the device comply with Russian and foreign regulatory documents, this being the reason of its widespread use in more than 40 countries, including Germany, France, Brazil and Norway. When monitoring, the controlled area is the central part of the area located between the magnetic poles of the device. The width of the monitored area is determined by the width of the magnetic poles of the device and is approximately 60 mm. The length of the monitored section depends on the inter-pole distance. the dimensions of the controlled area are given depending on the device's inter-pole distance: Inter-pole distance, mm 95: 75 55 Controlled area between the working poles, mm: 60x60 40x60 25x55 The length of the defect detection zone depends on the distance established between the working poles of the magnet on the controlled product. Defects are not detected in the areas adjacent to the poles of the magnet. The length of these sections is 18 mm with an interpolar distance of 95 and 75 mm. With an interpolar distance of 55 mm these sections are 13 mm long. Scope of application: Magnetizing devices for magnetic powder flaw detection are used in many industries, including railway, water and aviation transport, in the construction and operation of pipelines, in chemical and petrochemical production. The flexible link between the magnetic blocks allows the control of products of complex shape, for example, cylindrical tanks, high-pressure apparatuses, main pipelines, etc. When checking for defects, the device can be used together with other auxiliary equipment for: - preliminary and subsequent demagnetization; - application of a magnetic indicator (which can be dry or in the form of an emulsion); - magnetoluminescent control (with ultraviolet lamps).

The principle of operation of the magnetic particle flaw detector: The device provides monitoring and detection of surface defects by the applied field method or by the residual magnetization method. The kit with the device includes power cables, remote solenoids, and an electromagnet, with which you can produce longitudinal or circular magnetization of the part. A trolley is provided for the transportation of technical equipment and the detection of defects in the field. Magnetization is carried out by alternating, direct or pulsed current of large magnitude, due to which high values of the magnetizing field strength are achieved. Features and advantages of the UNM-300/2000 magnetic powder control device: Microprocessor control, which allows you to memorize and accurately reproduce the desired modes and selected measurement parameters, as well as work as part of automated stands and control systems; The magnetizing device has a digital indicator on the front side and a control panel for selecting the operating mode, type and current strength; Automatic recognition of the type of connected external magnetizing device; Device temperature control and automatic shutdown in case of overheating; Remote connected magnetization devices allow you to control the quality of parts and assemblies of complex shape; Automatic demagnetization of controlled assemblies and parts; The equipment meets the requirements of the following standards: GOST R 56512-2015, GOST R 53700-2009 (ISO 9934-3:2002), GOST R 50.05.06-2018, GOST R ISO 10893-5-2016, GOST ISO 17638-2018, RD 34.17.102-88 and RD-13-05-2006; Devices of the MANUL series (UNM-300/2000 and others) are approved for use by the Russian Railways. Scope of application: Magnetic particle flaw detection is indispensable where quality control of various critical and loaded assemblies and parts is required, detection of surface defects that occur during their production, storage and operation. The device may be in demand: at factories for the production and repair of automotive, aviation and railway equipment, metro enterprises, military-industrial complex (inspection of shafts, axles, wheel pairs, pistons, beams, springs, etc.); in civil and military shipbuilding, elevator and crane enterprises (control of rigging equipment, hooks, etc.); at pipe rolling plants (determination of defects in rolled products); in the oil and gas, chemical industry (inspection of welds of equipment operating under pressure). The UNM-300/2000 portable magnetic particle flaw detector has a relatively small weight and dimensions, which allow it to be used as a stationary or portable device in specialized quality control laboratories or in ordinary workshops, garages, hangars, locomotive depots or warehouses. The UNM 300/2000 device, as well as other means of magnetic powder control, are normally used together with auxiliary equipment for the preparation and application of magnetic powder (suspension), for fixing the indicator pattern, magnetometers for determining residual magnetization, visual inspection means – magnifiers and endoscopes, as well as with ultraviolet irradiators in the case of fluorescent powders. Technical specifications Magnetization currents Variable, Pulse, Rectified (only for solenoid and electromagnet) The measurement error of the magnetization current is no more than 10%. characteristics of the pulse current The repetition frequency of unipolar current pulses during magnetization and of multipolar current pulses during demagnetization is (2 ± 0.2) Hz. The duration of the current pulses is at least 1.5 ms. Magnetic characteristics of the solenoid The maximum alternating magnetic field in the center of a single solenoid is at least 100 A/cm. The maximum alternating magnetic field on the axis in the center between two solenoids located at a distance of 200 mm is at least 60 A/cm. The maximum permanent magnetic field in the center of a single solenoid is at least 80 A/cm. The maximum permanent magnetic field on the axis in the center between two solenoids located at a distance of 200 mm is at least 50 A/cm. Values of magnetization currents The maximum alternating magnetization current in the unwound cable 6 m × 50 mm2 and on the electrical contacts is at least 1000 A. The maximum pulse magnetization current in an unwound cable of 4 m × 10 mm2 and on electrical contacts is at least 2000 A. The current adjustment range in the solenoids and the electromagnet is from 0.5 to 4.5 A. Characteristics of the electromagnet The maximum alternating magnetic field in the air gap of the electromagnet depending on the interpolar distance is as follows: - in the 140 mm gap: at least 75 A/cm; - in the 40 mm gap: at least 300 A/cm. The maximum constant magnetic field in the air gap of the electromagnet depending on the interpolar distance is as follows: - in the 140 mm gap: at least 100 A/cm; - in the 40 mm gap: at least 400 A/cm. Operating mode The operating mode is cyclic: magnetization/pause. The magnetization time is adjustable from 1 to 40 s. The demagnetization time is adjustable from 5 to 60 seconds. Demagnetization of details is performed automatically. The time of setting the operating mode is no more than 15 seconds. The duration of continuous operation is at least 8 hours. Power supply parameters The device is powered by an alternating current network with a voltage of 220 V and a frequency of 50 Hz. The power consumed from the network is no more than 5 kVA. weight and size characteristics Overall dimensions of the device (w × h × d) – no more than 267×245×465 mm. The weight of the device is not more than 50 kg. Other characteristics The average worktime before failure is at least 12500 hours. The average recovery time is no more than 6 hours. The average service life of the device is at least 10 years. Compliance with standards The device fully complies with the requirements of GOST R 56512-2015, GOST R 53700-2009 (ISO 9934-3:2002), GOST R 50.05.06-2018, GOST R ISO 10893-5-2016, GOST ISO 17638-2018, RD 34.17.102-88 and RD-13-05-2006 in terms of the requirements for magnetizing devices and magnetic particle flaw detectors. Identification of the load. It performs automatic identification of the types of connected load: cables, solenoids and electromagnet. Control of the connected load current It allows you to control the current of the connected AC/DC electromagnets and solenoids.

Control methods: Impedance method (IM) and free oscillation method (MSC) Distinctive features: - A wide range of controlled materials: from steel to foam and structures with soft external and internal elements - Application of two complementary control methods - One-way access - Dry contact of the transducers with the controlled object - Visual representation of information - The ability to memorize and reproduce the setting modes, which excludes the use of control samples at the workplace Technical specifications: The minimum area of the detected defect, cm2: 1 The depth of detected defects in fiberglass, mm: up to 12...15 Light and sound signaling of defects Number of measurements per second: 15 Weight, kg: 1 Self-powered by batteries Continuous battery life, h: 8 Operating temperature range, °C: -10...40