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Technical specifications: Frequency range of sinusoidal waveforms, 0.1 Hz - 17 MHz Frequency range of rectangular-shaped signals, 0.1 Hz - 1 MHz Frequency setting discreteness, ±(0.012 + 0.0001 f), f in Hz Frequency instability in 15 minutes, no more than ± 1•10-5 Smooth signal attenuation, 40 dB Stepwise signal attenuation, 20, 40, 60 dB

Technical specifications: DC voltage , Measuring range, 10 MV - 1000 V Measurement error, ± 0.03% AC voltage , Measuring range, 1 mV - 750 V Measurement error, ± 0.4% Frequency range, 20 Hz- 100 kHz Direct current , Measuring range, 1 mkA - 2 A (B7-91/1) Measuring range, 1 mkA - 20 A (B7-91) Measurement error, ± 0.03%

A high-precision dosimeter with extensive functionality: measurement of DC power, electric charge, charge by numerical integration of current, kerma and kerma power in the air, kerma by numerical integration of kerma power and other radiological quantities. Composition of the dosimeter: - Electrometric measuring unit (electrometer) - PTW-Freiburg ionization chambers (Germany) to choose from: TM23342 Flat-parallel X-ray (volume 0.02 cm3) TM31010 Cylindrical (volume 0.125 cm3) TM30010 Thimble (volume 0.6 cm3) TM23361 Cylindrical (volume 30 cm3) TM32002 Spherical (volume 1000 cm3)

Distinctive features of biological safety cabinet of ODO "BELAKVILON" four versions with different working area widths: 90, 120, 150, 180; ease of operation and ease of operation; highly efficient shadowless diffused panoramic illumination of increased brightness (at least 1500 lux) with brightness adjustment for comfortable operation; a stable air barrier and a constant downward flow in the work area ensures maximum protection of personnel and the sample. These conditions are constantly monitored by automation; the front screen is made of 6 mm tempered glass with 2 handles and a tilt angle of 10°, with 20 cm (available 16– 25 cm) working lifting height; the front working glass has no edge, which allows you to observe the working process without interference; availability of all spare parts in stock (including metal body panels and glass).

The set of devices includes a microwave transmitter module, a microwave receiver module, a set of devices (metal reflecting screens, a refractive prism, an absorbing screen, etc.) to demonstrate the properties of electromagnetic waves (radiation, absorption, reflection, refraction, interference, diffraction). Technical specifications: The wavelength of the microwave transmitter is 3 – 4 cm; The average value of the energy flux density emitted by the microwave transmitter meets the requirements of the SanPiN 2.4/2.1.8.9-36-2002 (no more than 10 MW/ sq. m.). Receiver (transmitter) weight, not more than 0.3 kg Overall dimensions of the receiver (transmitter) 172x25x77 mm The microwave receiver module has a built-in interface for connecting to a personal computer and provides the ability to display the measured information on the PC screen. The kit includes an electronic media with software (CD-ROM) to demonstrate the operation of the equipment on the monitor screen of a personal computer.

High sensitivity Audible, light and visual alarm of exceeding the set threshold levels The possibility of using both stationary and wearable versions Automatic recording and storage of at least 10,000 GPS-linked measurement results when using BOI4 The possibility of automatic data transfer to a remote server, as well as processing them in export application software when using BOI4

Storage and transfer of kerma units in the air, ambient, individual and directional dose equivalents and their X-ray radiation capacities to working standards and measuring instruments. ▪ The use of highly stable ISOVOLT X-ray machines with metal-ceramic tubes ▪ Field shaper with radiation qualities according to GOST 8.087, ISO 4037, IEC 61267, etc. ▪ Replaceable discs with 11 filter slots; 3 replaceable diaphragms ▪ Additional filters up to 50 mm thick ▪ A protective flap made of tungsten with beam attenuation of more than 1000 times and a response time of less than 0.1 s ▪ A camera monitor and an electrometric unit provide monitoring of the presence and stability of the radiation output ▪ A positioning system in the radiation beam along three axes ▪ A laser detector centering devices ▪ A video surveillance system of indications ▪ Alarm and blocking systems, radiation monitoring ▪ A control system using operator panels and PC

Technical specifications: Capacitance (10-13-0.02) F, inductance (10-8–16x103) Gn Resistance (10-3–2x107) ohms Conductivity (10-9-10) Cm Q factor, loss factor 10-3-103 The error is ±0.15% Offset voltage 2±0.2 V Measuring signal levels (0.1±0.02) V and (1±0.2) V Range selection: automatic, manual RS-232C interface Dimensions, weight: 90x265x317 mm, 2 kg Power supply: ~220V, 10 VA

Technical specifications: Output constant voltage, 0 - 3 kV; 0 - 10 kV Output AC voltage, 0 - 3 kV; 0 - 10 kV Measurement of leakage current, from 0 to 100 Ma The amplitude value of the output voltage ripples relative to the set voltage at a load current of 1 mA, ≤ 5% The error of setting the output voltage, ≤ 4% Protection tripping current, up to 50 mA Output power, 500W Overall dimensions (HxWxD), 280x480x475 mm Weight, 36 kg Operating conditions , Operating temperature, from +5 to + 40 °C Humidity, 80% at 25 °C