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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

Technical specifications: Temperature range: without external cooling, °C Current +10 ... +150 with tap water cooling °C Tvods+5 ...+150 Accuracy of temperature maintenance, °C ± 0.1 The error of setting the set temperature, no more than ° C ± 0.2 Heater power, W 2000 Pump: max. flow rate, l/min 8,0 pressure, 0.25 bar Bath volume, l 16 Working fluid water, water-glycerin mixtures, silicone oil The open part of the bath / depth, mm 190x296/200 Overall dimensions, mm 355x335x400 Weight, kg 12.8

It is designed to maintain the set temperature of the coolant circulating in the connected external consumers. Feed pump for external closed-type thermostating systems. Cooling capacity 300 W at -80 °C. An internal bath with a volume of 9 liters and a depth of 200 mm. The operating temperature range is -90...+100 °C. Overall dimensions 510x800x1230 mm Weight 120 kg Power consumption 4.2 kW.

Laboratory work desk Working surface: STEEL (single stainless steel module with anti-spill side) Length, mm: 1800 Depth, mm: 650 Height, mm: 900 BASIC EQUIPMENT The base is a collapsible frame made of rectangular steel profile, painted with powder paint (RAL 7035) with the texture of shagreen leather Hidden fasteners Two easily removable rear screens (RAL 7035) and one non-removable (RAL 5023) Adjustable supports (0-40 mm)

The LP-500 flow-through water trap is installed on the inlet flange of the diffusion pump and is designed to reduce the flow of working fluid vapors into the pumped volume by condensing them on the cooled elements of the freezing device.

Furniture for laboratory work. Table-washing LAB-M MO 150.65.90 T6V Width, mm: 1500 Depth, mm: 650 Height, mm: 900 equipment: Countertop – TRESPA TopLabPlus is a monolithic slab of ultra-high pressing with a thickness of 6mm with a chemically resistant surface made of polyurethane-acrylic composition, on a substrate made of wood–containing material (plywood 15mm or melamine 16mm), edged along the perimeter with PVC edge 2mm 1 built-in bowl - epoxy compound VITE. The location of the bowl in the center, fixing the bowl flush with the table top level. Inner bowl size – 450*365*280 mm The base of the sink table is a support pedestal made of white melamine Facades – laminated MDF of white color with a thickness of 16 mm, dark gray ABS edging Without shelves

Tubular furnaces MA are designed for heating chemical equipment with analytes in installations for microanalysis of organic compounds and other work at temperatures up to 1200 ° C.

Operating temperature range 0...+50 °C Two places for glass viscometers. Stability and uniformity of temperature in the working bath is not worse than ± 0.01 ° C. Bath volume 12 l Overall dimensions 440x710x620 mm The open part of the bath is 165x85 mm Bath depth 300 mm The size of the viewing window is 130x270 mm Weight 55 kg Power consumption 3.5 kW

It is designed for thermostating samples in glasses, flasks and other laboratory utensils in cases when high accuracy of temperature maintenance is not required and good uniformity of the temperature field in the working volume is not needed. The operating temperature range is Current +5...+200 °C. Three workstations with a diameter of 110 mm with five steel O-rings. Stamped steel bath with a volume of 8 liters and a depth of 110 mm. Bath volume 8 l Overall dimensions 355x310x335 mm The open part of the bath is 295x235 mm Bath depth 110 mm Weight 9 kg Power consumption 2.5 kW

It is used for slow and gradual heating of laboratory dishes in sand baths.

Furniture for laboratory work. Table-sink on a support pedestal made of metal LAB-M MO ME 80.65.90 PP Width: 800 Depth: 650 Height: 900 equipment: Table top – polypropylene with an overhead rim around the perimeter Attention! It is not recommended to use it for work with oil and petroleum products (fuel oil, bitumen, etc.) The bowl is polypropylene. The location of the bowl in the center, the mounting of the bowl is suspended. Inner bowl size – 400*400*300 mm The base of the sink table is a metal support pedestal. All-welded frame painted with dark grey powder paint RAL 7011. The bottom and top of the housing are sheet steel painted with powder paint of dark gray RAL 7011, the side walls are made of sheet steel painted with powder paint of white RAL 9016. Facades – laminated MDF of white color with a thickness of 16 mm, dark gray ABS edging

Furniture for laboratory work. Length, mm: 800 Depth, mm: 580 Height, mm: 400 body – melamine 16 mm thick 1 branch