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Technical specifications Material: S-TIH53 (Ohara) Length, mm: 5.8±0.02 Height, mm: 1.5±0.02 Thickness, mm: 1.0±0.01 Refractive index, mm: 1.823 Pitch, mm: 1.0 Radius, mm: 6.52 Effective focal length, mm: 8.01 Rear focal length, mm: 7.45 Transmission, %: >99.5 Antireflection coating, nm at one of the wavelengths from the range: 400-1500 Numerical aperture: 0.056 Surface quality at λ = 633 nm: λ/4 Residual deviation at full angle FW1/e2 (for non-linear deviation of the laser diode), mrad: 12.5

METOLAB 452 is a stationary Vickers hardness tester – a modification of the METOLAB 451 device with a large color display and improved characteristics. The METOLAB 452 hardness tester is designed to measure the hardness parameters of steels, cast iron, non-ferrous metals, soft alloys and other similar materials on the HV scale in full compliance with GOST R ISO 6507-1-2007. The device has excellent accuracy and provides high repeatability of measurements. METOLAB 452 is a stationary hardness tester equipped with an automatic loading system, as well as a digital display. Thanks to the software of the device, switching from the indenter to the lens also occurs in automatic mode. Other features of the hardness tester include software calculation of hardness values, statistical processing of results (calculation of average/maximum/minimum values), conversion of results into Vickers, Brinell, super-Rockwell scales. The automatic METOLAB 452 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 automatic stationary METOLAB 452 Vickers hardness tester: Simple and intuitive interface, full Russification of the device; Wide range of measured values – from 5 to 2500 HV; Wide range of applied test load: 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 functionality of converting the obtained values into a number of scales: HRA, HRB, HRC, HRD, HRF, HV, HK, HBW, HR15N, HR30N, HR45N, HR15T, HR30T, HR45T; Automatic switch of the applied load; Large and bright LCD display; Automatic switching from the indenter to the lens; U disk for saving data in Excel format for easy editing and processing; Digital calibration. Basic delivery package: Stationary METOLAB 452 hardness tester; Standard Vickers hardness test - 2 pcs.; Flat desktop; Large flat desktop; V-shaped desktop; Micrometer; Diamond indenter with an angle at the top of 136°; User Manual.

Technical specifications: B5-78 (15 V, 3 A); B5-78/1 (30 V, 2 A); B5-78/2 (50 V, 1 A); B5-78/4 (20 V, 1.5 A); B5-78/6 (30 V, 4 A); B5-78/7 (50 B, 2.5 A) Voltage measurement error: ±0.3 V Current measurement error: ±(0.04–0.06) A Voltage instability when the load current changes 0.03% Instability of the current when the voltage changes at a load of 0.2% Voltage ripple 0.5–1 mV Current ripple 0.1% Power consumption 90 - 320 VA Two 3-digit indicators (voltage, current) Adjustments are rough, smooth Dimensions 115x185x360 mm Weight: 3.7 kg (B5-78, B5-78/1, B5-78/2) 3 kg (B5-78/4) 5.5 kg (B5-78/6, B5-78/7) Power supply ~220 V A

Description of the cable finder Success KBI-309N • – Traceroute receiver in the form of a monoblock with a large LCD display. • – The image of the route on the device screen. • – Automatic calculation and display of the depth of the communication up to 10 m, as well as the current in the line. Purpose of the cable finder Success KBI-309N • – Search for live electrical cables. • – Search and tracing of underground utilities (gas pipelines, pipelines, power and telephone cables). • – Determination of the occurrence of underground utilities at a depth of up to 10 m. Features of the AP-019.1 receiver • – Modern digital traceriscover receiver-monoblock AP-019.1. • – The image of the route on the device screen. • – Automatic calculation and display of the depth of communication and current in the line. • – Several options for displaying information on the receiver indicator: "Route", "Graph", "Graph+", "Minimum maximum", modes "Relative distance to communication" and "2-frequencies" allow the operator to use the device's capabilities as efficiently as possible. • – Additional functions when connecting external sensors. • – Wide range of operating frequencies (50(60) / 100(120) / 512 / 1024 / 8192 / 32768 Hz, wide band 40...8000 Hz, radio 8...40 kHz). • – Menu in two languages (Russian and English).

Designed for storing and transmitting the size of a resistance unit, as well as for checking and calibration of working resistance measures and complex resistance meters with a four-pair or five-clamp connection scheme in the frequency range from DC to 10 MHz. Description: Each of the resistance measures H2-2 is a precision resistor, in series and in parallel to which fitting resistors are connected, placed in an aluminum housing. The measures have a four-pole connection scheme. Four BNC type connectors (plugs) are located on the wall of the housing. The distance between the connectors is 22 mm. In measures of 100 kOhm and 1 mOhm, it is possible to adjust the value of the time constant of the measure using a tuning capacitor.

Designed for: – determining the location of liquid leakages from pipelines by the correlation method; – tracing underground utilities with the display of the communication axis and digital measurement of the depth of occurrence; – clarification of leakage sites by acoustic leak detector; – search for the place of damage to the power cable by induction and acoustic methods; • – creation of an information database of the condition of pipelines and the results of pipeline diagnostics.

Basic properties Wide frequency range; Small VSWR values. Operating conditions Operating temperature range from minus 10 to 50 ° C; The relative humidity of the air is up to 98% at a temperature of 25 ° C. Technical specifications Waveguide cross section, mm 5.2×2.6 Type of coaxial connector (according to GOST RV 51914-2002) IB Frequency range, GHz 37.50-50.00 VSWR 1.45

The antenna is passive. It can be operated indoors and outdoors.

Digital tracer device with LED scale and audio output to the operator's headphones. Extremely easy to use and in a compact, lightweight case. Designed for: • – search for live electrical cable lines. • – search for places where the pipeline and cable intersect. • – determination of the occurrence of underground utilities at a depth of up to 6 m . Features of the AP-014 receiver • – Digital traceroute receiver. • – Additional LED indication of the signal level. • – Wide range of operating frequencies (50 / 100 / 512 / 1024 / 8192 / 32768 Hz, Wide Band 50...2000 Hz). • – Frost-resistant, working at temperatures up to -30 ° C. • – Lightweight, compact housing.

Technical specifications: 4-channel automated system for measuring the parameters of semiconductors (including test structures on plates) Study of the VAC of 2, 3, 4-pole Parameters of each channel Source/meter:- U: ±2 V, ±30 V (200 mA), ±120 V (±10 mA), I: ±20, ±200 nA, ±2, ±20, ±200 Ma, ±2, ±10mA, (±120V), ±20, ±200 mA (±30V) Source and meter error U, I ± 0.5% Sensitivity of the U/I meter: 10 mv/ 0.1 pA Graphs, tables, texts, databases RS-232C interface, computer software Dimensions, weight: 450x266x444 mm, 23 kg Power supply: ~220V, 120 VA

The analyzer is designed to determine the mass fraction of sulfur from 3 million-1 (ppm) in oil and petroleum products in accordance with GOST R 51947-2002, GOST 32139-2019, GOST R EN ISO 20847-2010 / GOST ISO 20847-2014, ASTM D4294, GB/T 17040-2019. Implements an arbitration method for measuring the mass fraction of sulfur for oil, automotive fuels of class K2, K3, jet engine fuel, aviation gasoline, fuel oil and marine fuel, and is also used for operational control of sulfur content in automotive fuels of Class 4 and 5, gas oils, bitumen, lubricating oils and their components and other petroleum products. The analyzer greatly simplifies the routine analysis procedure. Intuitive interface provides convenience and ease of use. The analyzer is a proprietary development of NPO "SPEKTRON". The device is manufactured in St. Petersburg mainly from domestic components. Minimum operator actions: - calibration is selected and the name of the sample is entered; - two cuvettes are filled with a sample; - the obtained samples are placed in the analyzer and measurements are started; - all subsequent actions are performed automatically: - the average value of the mass fraction of sulfur is calculated and displayed; - repeatability is calculated; - the results are checked for compliance with the selected standard; - measurement results are printed on the built-in printer and saved.

Vibration velocity sensors with a current output DVST-4 are designed to convert the RMS value of the vibration velocity of an object into a standard current signal of 4-20 mA.