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The stationary METOLAB 502 hardness tester is a modification of the METOLAB 501 series device, equipped with a display and a digital micrometer that allows you to automatically read values without the need for conversion tables. The device also automatically calculates the hardness of the samples. The METOLAB 502 microhardometer is designed to measure the hardness of various samples and products (steels, cast iron, non-ferrous metals and soft alloys) according to the Vickers (HV) and Knup (HK) scales in full compliance with GOST R ISO 6507-1-2007. The device has high accuracy, performs measurements in a wide range and with high repeatability. The stationary automatic METOLAB 502 hardness tester is included in the State Register of Measuring Instruments of the Russian Federation (GRSI) under the number 66668-17 and comes with a certificate of primary verification (on request). Distinctive features of the stationary METOLAB 502 Micro-Vickers hardness tester: Built-in digital micrometer that allows you to automatically read readings without the need for translation tables; Automatic hardness calculation; Simple and intuitive control of the device, fully Russified menu; Wide range of measured values – from 5 to 2500 HV; A wide range of applied test loads - 0.09807 N (10 g), 0.2452 N (25 g), 0.4903 N (50 g), 0.9807 N (100 g), 1.961 N (200 g), 2.942 N (300 g), 4.904 N (500 g), 9.80 N (1 kg); Large and bright LCD display. Basic delivery package: Stationary METOLAB 502 Micro-Vickers Hardness Tester; Standard hardness sample – 2 pcs.; Flat desktop; Large flat desktop; V-shaped desktop; Micrometer; Diamond indenter with an angle of 136°; User Manual.

Salt baths (furnaces) are used for low tempering of steels, annealing and heating for hardening of aluminum alloys, for tempering aluminum alloys, for tempering high-speed steel and for the first stage of heating high-speed steel. The low-temperature saltpeter bath SHS-6.5.6.2/5.5 is designed for heat treatment of parts in a saltpeter melt at temperatures up to 550 ° C in stationary conditions.

A trace searching kit for finding underground utilities (cable lines, metal pipelines, and other communications made of conductive materials). The kit includes a receiver in the form of a monoblock with LED indication and a compact autonomous generator with an output power of up to 20 watts and a range of up to 3 km. Connection to the desired route is possible both by contact and contactless method.

The automatic tracing pulse generator AG-114 is designed to create propagating signals (vibrations) in the routes of hidden communications with the active method of tracerouting. The device creates an alternating sinusoidal current in the studied communication (constantly or in short-term parcels) necessary to determine its location. Features of the AG-114 generator The selected output power (5 W at 1...1000 ohms, 10 W at 1...500 ohms, 20 W at 1...250 ohms) is issued automatically. The ability to work on such high load resistances allows you to trace very extensive communications. Low power provides energy saving and small "readjustments" to neighboring objects, high power provides a high range of broadcast and detection. Three generation modes: pulse – the main high-efficiency mode with high intelligibility against interference; continuous – an additional low-cost mode for short-term special measurements; three–frequency mode, which provides the selection of the optimal frequency on a remote receiver without switching the transmitter (generator). Three generation frequencies: 512 Hz, 1024 Hz, 8928 Hz. Lower frequency – less "readjustment" to neighboring objects, higher frequency – higher detection range. Unusually compact (190x140x80 mm), for such a high output power (20 W), the autonomous design is provided by the use of highly efficient technology "CLASS D (BD)" (pulsed output power amplifier with an efficiency of 80%). As a result, one small-sized autonomous battery with a capacity of only 2.2 Ah provides pulse generation for >5 hours at maximum output power (20 watts). It is possible to work with "recharge" from the charger or increase capacity by connecting an external battery to increase the time resource. The control and display system, which contains only 4 large keyboard switches and 2 LEDs with specific signatures and symbols ("intuitive interface") and is not overloaded with unnecessary, for automatic devices, fine-tuning organs and indicators of numerical parameter values, is designed for convenient operation in the field. The device does not require constant supervision, parameter monitoring, frequent operational switching and is designed to work on the principle of "turned on and went to the track". In case of significant changes in the load resistance (communication) during generation, the device is automatically reconfigured ("repeated auto-negotiation").

Technical specifications: The waveform is sinusoidal, rectangular (TTL) Frequency range from 2 Hz to 2 MHz Frequency setting error ±0.05% Frequency instability ±0.02% in 15 min Signal amplitude ±5 V at 600 ohm load ±10 V without load Limits for adjusting the output signal level from 1 mV to 3.75 V (scr) at a load of 600 ohms from 2 mV to 7.5 V (scz) without load Signal level unevenness ± 2% at frequencies from 20 Hz to 200 kHz relative to 1 kHz ± 5% at frequencies from 200 kHz to 2 MHz Harmonic coefficient ± 0.3% at frequencies from 2 to 20 Hz ± 0.2% at frequencies from 20 Hz to 100 kHz ±1% at frequencies from 100 kHz to 2 MHz Parameters of the rectangular (TTL) signal form log. "1" 3 2.4 V; log. "0" ≤ 0.4 V the duration of the front, the cutoff is not more than 100 ns Operating temperature range from minus 10 °C to + 40 °C Power supply ~230 V, 50 Hz; 10 V×A Dimensions; weight 210×71×255 mm; 2

Heating chamber power, kW 40 Supply voltage, V 380 ±15% Frequency, Hz 50 Number of phases 3 Maximum operating temperature, oS 80 The range of automatic temperature control, oS From 20 to 80 Stability of automatic temperature maintenance, oS ±6 Environment in the workspace Water, oil, polymer liquid. Warm-up time to maximum temperature, h 1,5 Heating control Digital controller Workspace dimensions: width,mm 1000 depth, mm 1200 height, mm 1500 Overall dimensions of the product: width (without control cabinet), mm 1800 depth, mm 2100 height, mm 2750 Weight, kg 700 Working hours, hours per day/days per week 24/5

characteristics The AK-1000 is recommended for use with OCTAVE-101A, OCTAVE-101AM, OCTAVE-110A, OCTAVE-110A-ECO, OCTAVE-121, OCTAPHONE-110, OCTAVE-201, ECOPHYSICS-110A sound meters. The AK-1000 can be used for calibration of acoustic measuring paths with VMK-205, MK-265, MR-201, M-201, MK-233 microphones, and other ½-inch microphones. technical specifications Reproducible ultrasound, dB (rel. 20 µPa): 94 and 114 The limits of the permissible basic error of the reproducible ultrasound, dB: ± 0.25 Limits of the permissible additional error of the ultrasound caused by a change in ambient temperature in the operating temperature range, dB: ± 0.08 Frequency of the reproduced sound pressure, Hz: 1000 Limits of the permissible basic relative error of reproduction of the sound pressure frequency, %: ± 0.7 Limits of the permissible additional relative error of the sound pressure frequency caused by a change in ambient temperature in the operating temperature range, %: ± 0.07 Coefficient of nonlinear distortion, %, not more than: 2.5 Weight (with batteries), kg, no more than: 0.250 Overall dimensions (length×diameter), mm, no more: 158×35 Operating conditions: - ambient temperature, ° C: from minus 10 to 50 - relative humidity (at 40 ° C), %, not more than: 90 - atmospheric pressure, kPa: from 65 to 108

NT-MDT Spectrum Instruments is an INTEGRA Nano IR–scattering scanning near‑field optical microscope (s-NSOM) designed for the infrared spectral range. The AFM probe is located in the focus of an optical system that directs the IR laser radiation to the sample and collects the optical response. The collected radiation is sent to the Michelson interferometer for optical analysis. The far-field component of the collected signal is suppressed by synchronous detection. The INTEGRA Nano IR system allows detecting the amplitude and phase of the near-field signal. The spatial resolution of the resulting reflection and absorption contrasts is approximately 10 nm and is determined only by the size of the tip of the probe.

DPSS lasers of the KLM-465/x series are optimal sources of coherent radiation for the construction of control and automation systems, alignment and marking devices, for scientific and medical purposes. Technical specifications Radiation output power: up to 15 W Radiation wavelength: 465 nm Output beam diameter: 1.5mm Divergence of the radiation beam: 1.3 mrad Instability of radiation power: 5% Type of modulation: TTL or analog Time to enter the mode: 15min Spectral line width: 0.1nm

METOLAB 451 is a stationary hardness tester for measuring various materials using the Vickers method (HV scale) in full compliance with GOST R ISO 6507-1-2007. Due to its characteristics, the device allows you to measure the hardness of steels, cast iron, non-ferrous metals, soft alloys and other similar materials. The hardness tester is equipped with an electronic load value switch, has the functionality of entering diagonal length values from the control panel with subsequent automatic calculation of hardness. It is also possible to note a wide range of measured values (from 5 to 2500 HV) and the range of the applied load (from 1 to 50 kg). The automatic METOLAB 451 Vickers hardness tester is included in the State Register of Measuring Instruments of the Russian Federation (GRSI) and comes with a certificate of primary verification (on request). The entry number in the GRSI is 67656-17. Distinctive features of the stationary METOLAB 451 Vickers hardness tester: Simple and intuitive control of the device; Simplicity and ease of maintenance of the hardness tester; Wide range of measured values – from 5 to 2500 HV; Automatic application of test loads in the range: 1 kg (9.8 N); 2 kg (19.61 N); 3 kg (29.4 N), 5 kg (49 N), 10 kg (98 N); 20 kg (196.1 N); 30 kg (294 N), 50 kg (490 N); The price of dividing the scale of the reference microscope: 0.5 microns at 200x, 1 microns at 100x; The hardness tester is equipped with an electronic load value switch; A bright and clear LCD display that displays all the necessary service information, including the selected scale, the set load, exposure time, test mode, etc.; An automatic loading system guarantees high accuracy and repeatability of the results. Basic delivery package: Stationary METOLAB 451 hardness tester; Standard Vickers hardness test - 2 pcs.; Flat desktop; V-shaped desktop; Micrometer; Diamond indenter with an angle at the top of 136°; User Manual.

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