High-precision hand-held instrument equipped with brand-new software, designed for non-destructive testing of production quality. Targeted for use across a variety of industries including metallurgy, mechanical engineering, aircraft construction, shipbuilding, atomic industry, and oil and gas. TQ-4Combi Plus combines the advantages of both UCI and Leeb methods for precise control of metals and alloys hardness.Application:Carbon and structural steels, along with other fine-grained materials.Hard-surfaced items treated with cementation, nitride hardening, or high-frequency current hardening.Heat-resistant, corrosion-resistant, and stainless steels.Non-ferrous metals and alloys such as cast iron, aluminum, bronze, and brass.Electroplated coatings like chrome, copper, nickel, zinc, and tin, as well as overlaying.Items of complex configuration including gear teeth, shafts, pipes of any diameter, grooves, and blind holes.Thin-walled and small-sized items.Large items and heavy-duty equipment like gas pipelines, rails, and construction elements.Operational advantages:Wide compatibility with various metals and alloys.Stable measurements unaffected by force or time of probe pressing.Low sensitivity to surface curvature and roughness.Ability to measure hardness in hard-to-reach areas with consistent accuracy.Wide range of compatible accessories for enhanced usability.Features:Impact-, dust-, and water-proof housing for durability in challenging environments.Bright color display for readability in below-zero temperatures.Signalization alerts for exceeding prescribed measurement thresholds.Unique statistical data processing system for accurate analysis.Quick calibration of device scales using one or two standard test blocks.Flexible device memory for efficient readings recording and analysis.Programming capabilities for additional calibrations with one or two standard test blocks.Fast setup of additional scales with two to ten standard test blocks.Probes characteristics:PhotoProbe Type/LoadWeight/thickness/surface roughnessof the articleunder checkLength/DiameterApplicationUCI method«A»(HV5)50N/5kg1kg/3mm/Ra 1,6145/26mmSolving of main hardness testing tasks«H» (HV1)10N/1kg1kg/2mm/Ra 0,8145/26mmHardness testing of electroplated coating (chrome, copper, nickel, zinc, tin), thinwalled and small-sized items«C» (HV10)100N/10kg1kg/4mm/Ra 3,2145/26mmHardness testing of items with unprepared surface, large items and heavy-duty equipment«K»(HV5)50N/5kg1kg/3mm/Ra 1,676/33mmHardness testing of inner surface of tubes, tanks and other hard-to-reach areas«AL»(HV5)50N/5kg1kg/3mm/Ra 1,6190/26mmHardness testing in hard-to-reach areas as pinholes, grooves, in-between gear teeth zones (length of tip 65mm)Leeb method«D»3kg/6mm/Ra 3,2138/21mmSolving of main hardness testing tasks with surface roughness less than 3.2Ra«E»3kg/6mm/Ra 3,2138/21mmProbe with polycrystalline indenter made of cubic boron nitride to test materials with high hardness«G»8kg/55mm/Ra 7,6200/29mmHardness testing of high structure inhomogeneity items with surface roughness more than 7.2RaRequirements:PreparationUCI methodLeeb methodNeed no additional preparationWeight 1kg or moreThickness 2mm or moreWeight 5kg or moreThickness 6mm or moreNeed to be fixed on the base plateWeight less than 1kgThickness less than 2mmWeight less than 5kgThickness less than 6mmRoughness requirements0.8 – 3.2Ra (depending on probe)3.2 – 7.2Ra (depending on probe)Hardness testers modes:Measurement modeReadingsUsingBy basic scalesBasic hardness units (HRC, HB, HV)Hardness testing of the bulk of productsBy additional calibrations to basic scalesBy HRA, HRB, HSD scales and ultimate tensile strengthHardness testing of high-alloy steels, special cast iron and nonferrous metalsBy additional scalesScales are programmed by the userSpecial problems solvingStatistical processing of measurements:Maximum, minimum, and mean values, along with standard deviation.Average deviation from user-set values and maximum deviation.Number of results outside user-specified limits and maximum deviation from the upper/lower border.Automatic filtering of erroneous measurements.Comparison of measurement results in series using on-screen comparison charts.Technical specifications:CharacteristicValuesRelative average error at regular calibration3-5%Hardness testing ranges:Rockwell C20-70 HRCBrinell90-450 HBVickers240-940 HVSpot diameter on the item surface for probe positioningFrom 1mm on flat surfaceFrom 5mm in a slotQuantity of possible additional scales calibrations5 for each scaleQuantity of additional scales3Duration of the measurement2 secondsQuantity of measurements for average reading calculation1-99Memory capacity12 400 readingsMaximum quantity of named blocks of readings generated in memory100PC connectionUSBPower supplyLi-ion accumulation batteryDimensions of hardness tester electronic unit121x69x41mmWeight of electronic unit0.3kgWeight of A-probe0.3kgWeight of D-probe0.15kgOperating temperature range-15…+35 °CWarranty1 yearDelivery set:ElementsHardness testerTQ-4CombiHardness testerTQ-4Combi+Electronic unit with accumulation battery++A-type probe++D-type probe++Connecting cable for A-type probe1 pcs2 pcsAdapter “U4”+Adapter “Z3”+Standard test block HRC+Standard test block HB+Standard test block HV+Charger++Operating manual++PC cable++Soft case++Cuff to fix device on arm++Bag for carrying and storing++Accessories:Replaceable probes of different construction and load.Special heads to simplify probe positioning on complex surfaces.Connection cables for seamless integration.Characteristics / Technical specifications:Combined hardness tester using both UCI and Leeb methodsHigh-precision, hand-held, non-destructive testingApplications: metallurgy, mechanical engineering, aircraft, shipbuilding, atomic industry, oil and gasCompatible with a wide range of metals, alloys, and coatingsImpact-, dust-, and water-proof housingBright color display, statistical data processing, quick calibrationUSB PC connection, Li-ion battery, memory for 12,400 readingsOperating temperature: -15 to +35 °CWarranty: 1 year