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The AC voltage source B2-7 is intended to provide devices and equipment with a stabilized AC voltage during the development, production, operation and repair of electronic devices. Main properties: Provides protection against overload and short circuits at the output. Has a light indication: - overload and short circuit protection tripping; - incorrect connection of the power supply line to B2-7. Technical specifications The nominal value of the output voltage (SKZ) 220 V The nominal value of the input and output voltage frequency is 50 Hz Output electrical power, not less than 1000 VA The main error in setting the output voltage is ± 2.2 V Additional error in setting the output voltage caused by a deviation of the input voltage by ± 10% from the nominal value of 220 V ± 1.0 V Additional error in setting the output voltage caused by a change in the load current from the maximum value to zero ± 2.0 V Instability of the output voltage for any 10 minutes during 8 hours of continuous operation, no more than ± 2.0 V Operating temperature range from -10 to 50 °C AC power supply 220 V, 50 Hz Power consumption, no more than 1200 VA Overall dimensions, mm 240x128x349 Weight, not more than 6.5 kg

The source is capable of operating both independently and as part of automated measuring systems with interfaces such as RS-232 and ETHERNET. Technical specifications Output voltage setting range (SCR) from 25 to 250 V The discreteness of the output voltage setting is 0.05 V The frequency setting range of the output voltage is from 40 to 500 Hz The discreteness of the output voltage frequency setting is 0.05 Hz Output electrical power, not less than 1000 VA The basic error of setting the output voltage is ± (0.005 Uv + 0.5 V) The basic error of setting the output voltage frequency is ± 0.1 Hz Additional error in setting the output voltage caused by a change in the load current from the maximum value to zero ± 0.5 V Instability of the output voltage for any 10 minutes during 8 hours of continuous operation, no more than ± 0.5 V Operating temperature range from minus 10 to 50 °C AC power supply 220 V, 50 Hz Power consumption, no more than 1300 VA Overall dimensions, mm 343x160x352 Weight, not more than 6.5 kg

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