Metrology

Designed to measure the potentials of electrostatically charged objects, the strength of the electrostatic field and the surface density of electric charges. Technical specifications: Measuring range 0.02-50 kV The error is 5-10% The intensity of the electrostatic field Measuring range 2-1000 kV/m Error 5% Surface density of electric charges Measuring range 0.02-10 µcl/m2 Error 5% Measurement of the electrostatic field strength (2-1000 kV/m) Measurement of the potential of charged objects (0.02–50 kV) Measurement of surface charge density (2x10-8–1x10-5Kl/m2) Measurement error ±(5-10) % Laser pointer of the distance to the object (2, 10 cm) 3.5-digit indicator (LCD with image flip) RS-232C interface Dimensions, weight 40x106x268 mm, 0.7 kg Built-in battery for 8 hours of operation Power supply: ~220, 5 VA, 4.5–5.5 VA battery

The calibrator is capable of operating both independently and as part of automated measuring systems with interfaces such as RS-232 and ETHERNET. Technical specifications Ranges of reproduction of quantities: - constant electrical voltage from 500 MV to 1000 V - alternating electric voltage in the frequency range from 40 Hz to 2.5 kHz from 1 mV to 1000 V - the power of direct electric current from 10 µA to 50 A - the power of alternating electric current in the frequency range from 40 Hz to 2.5 kHz from 100 µA to 50 A - frequency of alternating electric voltage from 40 Hz to 2.5 kHz Errors in reproducing quantities: - constant electric voltage ± (0.02 – 2.4)% - alternating electric voltage in the frequency range from 40 Hz to 2.5 kHz ± (0.03 – 2.1)% - constant electric current ± (0.03 – 0.25)% - alternating electric current in the frequency range from 40 Hz to 2.5 kHz ± (0.04 -0.25)% - frequency of alternating electric voltage ± 0.02% The value of the phase shift between voltage and current with simultaneous ignition ± 2 ° General characteristics: Operating temperature range from 5 to 40 °C AC power supply 220 V, 50 Hz Power consumption, no more than 1000 VA Overall dimensions, mm 455x198x463 Weight, not more than 20 kg

The measurement range is -50...+200 °C. Resolution 0.01 °C, error ±0.05 °C (Class C according to ASTM E2877). The minimum immersion depth of the sensor is 75 mm Overall dimensions of the electronic unit 75x80x35 mm Weight 0.2 kg

The measurement range is -50...+300 °C. Up to +200 °C resolution 0.01 °C, error ±0.05 °C (Class C according to ASTM E2877). The minimum immersion depth of the sensor is 75 mm Overall dimensions of the electronic unit 75x80x35 mm Weight 0.2 kg

The principle of operation of the VD-20NF eddy current flaw detector The principle of operation of the VD-20NF flaw detector is based on the generation of eddy currents on the surface of the controlled part and subsequent analysis of the signal at the output of the converter, which correlates with the characteristics of the active secondary field. The device consists of two main blocks: electronic one and electromechanical one, in which an eddy current converter of transformer type is installed. The controlled products (bearing rollers) enter through the input tray into the electromechanical unit of the flaw detector, where they move sequentially and fall under the pressure rollers of the overhead converter holder. The clamping mechanism is adjusted to each size of the rollers, so as to ensure tight contact with the curved surface and fix the tip of the transducer at the required distance from it. The detection of defects occurs due to the imbalance of the converter when it is located above the surface of the controlled product, caused by the interaction of the primary electromagnetic field generated by the converter with the secondary electromagnetic field of eddy currents induced in the controlled product by the primary field. When cracks are detected, the electronic unit of the flaw detector gives sound and light warning signals, and also triggers the electromagnet of the sorter, which directs the controlled roller into the tray for defective products. In the absence of defects, the controlled roller is directed towards the output tray of the flaw detector. Design features and advantages The VD-20NF eddy current flaw detector is equipped with removable input and output trays, power-on switches and a drive for feeding controlled products to the converter, as well as handrails for convenient transportation of the unit. The mechanisms of the electromechanical unit are protected by a frame made of steel plates. The electronic unit of the flaw detector is portable and can be installed both on the top panel of the electromechanical unit and on the surface of the desktop. Controls and indications of defect detection are located on the front panel of the electronic unit. The delivery package also includes a power adapter for the electronic unit and a tuning sample. The advantages of the VD-20NF flaw detector include: high reliability (the service life of the flaw detector is more than 10 years); it is easy to set up and operate; it has several types of defect detection alarms; the high probability of detecting defective products (at least 99.9%); low number of false positives (less than 5%). Scope of application According to the current standards of safety and product quality control during repair work in locomotive depots and repair plants, bearing rollers that have passed visual inspection and are recognized as suitable for further operation according to the criteria of geometry and condition of the working surface are subject to mandatory additional control using eddy current flaw detection to detect fatigue cracks invisible during visual inspection on the rolling surface of the rollers. The VD-20NF eddy current flaw detector allows for quality control and automatic disassembly of bearing rollers of various shapes and sizes both in laboratory and factory conditions in full compliance with the requirements of the regulatory documents of Rosstandart and the methods of performing control measurements used in JSC "Russian Railways".

Designed to measure the temperature of various materials by direct contact of the probe with the measuring object The smart air probe L=1000 mm SSV.1000 is designed to measure the temperature of various materials by direct contact of the probe with the measuring object and transmitting the measured value via Bluetooth to devices with the ThermoMonitor. Android program is installed. Operating conditions of the SZV.1000 smart probe Ambient temperature, °C: -20...+55. Relative humidity, %: not more than 80 at T=35 °C. Atmospheric pressure, kPa: 86...106. Functionality of the smart probe SSV.1000 Measurement of physical quantities with a resolution of 0.01. Recording of measured values at intervals from 5 seconds to 23 hours 59 minutes 59 seconds (only smart probes with built-in memory). Transmitting data about measured physical quantities via Bluetooth to a device with the ThermoMonitor. Android program is installed. Transmitting information about the state of charge of the built-in battery via Bluetooth to a device with the ThermoMonitor, Android program installed. Automatic transition to sleep mode after 50 seconds. The ability to connect an external power supply. Possibility of calibration.

The drip collector is designed to remove droplet moisture when sampling air from indoor ventilation systems and is installed in gas aerosol sampling systems. Purpose: removal of droplet moisture from the selected air sample; accumulation of droplet moisture; indication of the level of accumulated moisture; draining the accumulated moisture.

Monoblock design Multifunctionality A built-in GPS module Audible, vibration and visual alarms The possibility of connecting external detection units Battery life 25 h (AT6102A,V),18 h (AT6102)

The PCU-1 laboratory catalytic unit is designed to perform the following tasks: 1. Educational and scientific research of chemical processes; 2. Improvement of current industrial processes and development of new ones; 3. Studies of homogeneous and heterogeneous catalysts. The PCU-1 laboratory catalytic unit is manufactured in accordance with the technical requirements of customers so as to correspond to a wide range of technological parameters. Additionally, embedded equipment is designed to control the flow of raw materials and products, as well as data collection and processing. The unit can be subsequently modernized for new purposes. Main advantages: 1. A reliable and high-precision system of control and regulation of technological parameters; 2. Easy replacement of catalyst samples; 3. The possibility of conducting long-term tests in continuous mode; 4. The possibility of upgrading the unit for new purposes; 5. The possibility of conducting tests in flow and flow-circulation modes; 6. Control and accurate reproduction.