• Probe A (HV5)
• Probe H (HV1)
• Probe C (HV10)
• Probe K (HV5)
• Probe AL (HV5)

Length – 100 mm. Connector Lemo-Lemo.

The cable is included in the standard delivery of the UCI Hardness tester TQ-4C. It can also be purchased separately.

Adapter “U4” for positioning of probe on flat, curved, cylindrical surfaces.

Minimum diameter of controlled item is 4 mm.

Adapter “U4” is purposed for following UCI probes:

• Probe A (HV5)
• Probe H (HV1)
• Probe C (HV10)

Probe AL (HV5) for hardness tester TQ-4C 

Probe AL (HV5) is purposed for hardness measurement of following:

• Stable readings independent from force and time of pressing.
• Easy measuring in hard-to-reach areas.
• Ultra-small control area (from 1 mm).
• Control in slots and blind holes from 5 mm (not provided by rival devices).
• Invisible print on mirror-surface.
• Low sensitivity to the curvative of surface, thickness and weight of product.

Probes characteristics

Photo	Probe Type/Load	Weight/thickness/ surface roughness of the article under check	Length/ Diameter	Application
	«А» 50H/5 kg	1 kg/3 mm/Ra 1,6	145/26 mm	Solving of main hardness testing tasks
	«H» 10H/1 kg	1 kg/2 mm/Ra 0,8	145/26 mm	Hardness testing of electroplated coating (chrome, copper, nickel, zinc, tin), thinwalled and small-sized items
	«С» 100H/10 kg	1 kg/4 mm/Ra 3,2	145/26 mm	Hardness testing of items with unprepared surface, large items and heavy-duty equipment
	«К» 50H/5 kg	1 kg/3 mm/Ra 1,6	76/33 mm	Hardness testing of inner surface of tubes, tanks and other hard-to-reach areas
	«AL» 50H/5 kg	1 kg/3 mm/Ra 1,6	194/26 mm	Hardness testing in hard-to-reach areas as pinholes, grooves, in-between gear teeth zones (length of tip 65 mm)

ATTENTION! There is a built-in Lemo plug-in in the probe. Connection cable is sold separately.
The design of hardness testers TQ-4C provides full interchangeability of probes!

Probe C (HV10) is designed for rough surfaces and is purchased separately.

The design of hardness testers TQ-4C provides full interchangeability of probes!

Probe C (HV10) is purposed for hardness measurement of following:

• Stable readings independent from force and time of pressing.
• Easy measuring in hard-to-reach areas.
• Ultra-small control area (from 1 mm).
• Control in slots and blind holes from 5 mm (not provided by rival devices).
• Invisible print on mirror-surface.
• Low sensitivity to the curvative of surface, thickness and weight of product.

Probes characteristics

Photo	Probe Type/Load	Weight/thickness/ surface roughness of the article under check	Length/ Diameter	Application
	«А» 50H/5 kg	1 kg/3 mm/Ra 1,6	145/26 mm	Solving of main hardness testing tasks
	«H» 10H/1 kg	1 kg/2 mm/Ra 0,8	145/26 mm	Hardness testing of electroplated coating (chrome, copper, nickel, zinc, tin), thinwalled and small-sized items
	«С» 100H/10 kg	1 kg/4 mm/Ra 3,2	145/26 mm	Hardness testing of items with unprepared surface, large items and heavy-duty equipment
	«К» 50H/5 kg	1 kg/3 mm/Ra 1,6	76/33 mm	Hardness testing of inner surface of tubes, tanks and other hard-to-reach areas
	«AL» 50H/5 kg	1 kg/3 mm/Ra 1,6	194/26 mm	Hardness testing in hard-to-reach areas as pinholes, grooves, in-between gear teeth zones (length of tip 65 mm)

ATTENTION! There is a built-in Lemo plug-in in the probe. Connection cable is sold separately.

Probe H (HV1) is purposed to control hardness of galvanic coatings (chrome, copper, nickel), thin-walled and small-sized items.

The design of hardness testers TQ-4C provides full interchangeability of probes!

Probe H (HV1) is purposed for hardness measurement of following:

• Stable readings independent from force and time of pressing.
• Easy measuring in hard-to-reach areas.
• Ultra-small control area (from 1 mm).
• Control in slots and blind holes from 5 mm (not provided by rival devices).
• Invisible print on mirror-surface.
• Low sensitivity to the curvative of surface, thickness and weight of product.

Probes characteristics

Photo	Probe Type/Load	Weight/thickness/ surface roughness of the article under check	Length/ Diameter	Application
	«А» 50H/5 kg	1 kg/3 mm/Ra 1,6	145/26 mm	Solving of main hardness testing tasks
	«H» 10H/1 kg	1 kg/2 mm/Ra 0,8	145/26 mm	Hardness testing of electroplated coating (chrome, copper, nickel, zinc, tin), thin-walled and small-sized items
	«С» 100H/10 kg	1 kg/4 mm/Ra 3,2	145/26 mm	Hardness testing of items with unprepared surface, large items and heavy-duty equipment
	«К» 50H/5 kg	1 kg/3 mm/Ra 1,6	76/33 mm	Hardness testing of inner surface of tubes, tanks and other hard-to-reach areas
	«AL» 50H/5 kg	1 kg/3 mm/Ra 1,6	194/26 mm	Hardness testing in hard-to-reach areas as pinholes, grooves, in-between gear teeth zones (length of tip 65 mm)

ATTENTION! There is a built-in Lemo plug-in in the probe. Connection cable is sold separately.

Probe K (HV5) has reduced dimensions for hardness control in a limited space: inside pipes, tanks and other hard-to-reach places.

The design of hardness testers TQ-4C provides full interchangeability of probes!

Probe K (HV5) is purposed for hardness measurement of following:

• Stable readings independent from force and time of pressing.
• The spatial position of the sensor does not affect the measurement result.
• Easy measuring in hard-to-reach areas.
• Ultra-small control area (from 1 mm).
• Invisible print on mirror-surface.
• Low sensitivity to the curvative of surface, thickness and weight of product.

Probes characteristics

Photo	Probe Type/Load	Weight/thickness/ surface roughness of the article under check	Length/ Diameter	Application
	«А» 50H/5 kg	1 kg/3 mm/Ra 1,6	145/26 mm	Solving of main hardness testing tasks
	«H» 10H/1 kg	1 kg/2 mm/Ra 0,8	145/26 mm	Hardness testing of electroplated coating (chrome, copper, nickel, zinc, tin), thin-walled and small-sized items
	«С» 100H/10 kg	1 kg/4 mm/Ra 3,2	145/26 mm	Hardness testing of items with unprepared surface, large items and heavy-duty equipment
	«К» 50H/5 kg	1 kg/3 mm/Ra 1,6	76/33 mm	Hardness testing of inner surface of tubes, tanks and other hard-to-reach areas
	«AL» 50H/5 kg	1 kg/3 mm/Ra 1,6	194/26 mm	Hardness testing in hard-to-reach areas as pinholes, grooves, in-between gear teeth zones (length of tip 65 mm)

ATTENTION! There is a built-in Lemo plug-in in the probe. Connection cable is sold separately.

Probe A (HV5) included in the standard delivery of UCI hardness tester TQ-4C.

The design of hardness testers TQ-4C provides full interchangeability of probes!

Probe A (HV5) is purposed for hardness measurement of following:

• Stable readings independent from force and time of pressing.
• Easy measuring in hard-to-reach areas.
• Ultra-small control area (from 1 mm).
• Control in slots and blind holes from 5 mm (not provided by rival devices).
• Invisible print on mirror-surface.
• Low sensitivity to the curvative of surface, thickness and weight of product.

Probes characteristics

Photo	Probe Type/Load	Weight/thickness/ surface roughness of the article under check	Length/ Diameter	Application
	«А» 50H/5 kg	1 kg/3 mm/Ra 1,6	145/26 mm	Solving of main hardness testing tasks
	«H» 10H/1 kg	1 kg/2 mm/Ra 0,8	145/26 mm	Hardness testing of electroplated coating (chrome, copper, nickel, zinc, tin), thinwalled and small-sized items
	«С» 100H/10 kg	1 kg/4 mm/Ra 3,2	145/26 mm	Hardness testing of items with unprepared surface, large items and heavy-duty equipment
	«К» 50H/5 kg	1 kg/3 mm/Ra 1,6	76/33 mm	Hardness testing of inner surface of tubes, tanks and other hard-to-reach areas
	«AL» 50H/5 kg	1 kg/3 mm/Ra 1,6	194/26 mm	Hardness testing in hard-to-reach areas as pinholes, grooves, in-between gear teeth zones (length of tip 65 mm)

ATTENTION! There is a built-in Lemo plug-in in the probe. Connection cable is sold separately.

Probe D with connector is a replaceable probe for Leeb Hardness tester TQ-3C.

The probe with socket is purposed to solve main problems of hardness control of metals and alloys.

Probe D with socket allows the user to replace the cable if necessary.

Probe D is used for hardness testing:

• All basic types of metals and alloys without additional calibrations (structural, tool, corrosion-proof, heat-proof, non-corrosive steels and alloys as well as alloys of nonferrous metals, castiron, aluminium, bronze, brass);
• Items with surface hardening and high frequency current hardening;
• Items of complicated configuration;
• Heavy and big items with rough surface.

Advantages of Leeb probe

• Hardness measurement in hard-to-reach areas.
• The spatial position of the probe does not affect the measurement result.
• The robust housing is not subject to mechanical stress.
• Long service life.

Probes characteristics

Photo	Probe Type	Weight/thickness/ surface roughness of the article under check	Length/ Diameter	Application
	«D»	3 kg/6 mm/Ra 3,2	138/21 mm	Solving of main hardness testing tasks with surface roughness less than 3.2 Ra
	«E»	3 kg/6 mm/Ra 3,2	138/21 mm	Probe with polycrystalline indenter made of cubic boron nitride to test materials with high hardness
	«G»	6 kg/55 mm/Ra 7,6	200/29 mm	Hardness testing of high structure inhomogeneity items with surface roughness more than 7.2 Ra

ATTENTION! Probe should be adjusted to the electronic unit by the manufacturer.

Probe E is a replaceable probe for Leeb Hardness tester TQ-3C.

Probe with indenter made of polycrystalline of boron nitride intended for control of materials with high hardness.

The Probe E is used for hardness testing:

Advantages of Leeb probe

Photo	Probe Type	Weight/thickness/ surface roughness of the article under check	Length/ Diameter	Application
	«D»	3 kg/6 mm/Ra 3,2	138/21 mm	Solving of main hardness testing tasks with surface roughness less than 3.2 Ra
	«E»	3 kg/6 mm/Ra 3,2	138/21 mm	Probe with polycrystalline indenter made of cubic boron nitride to test materials with high hardness
	«G»	6 kg/55 mm/Ra 7,6	200/29 mm	Hardness testing of high structure inhomogeneity items with surface roughness more than 7.2 Ra

ATTENTION! If you buy only Probe E, the Hardness tester TQ-3C should be sent to the retrofit and alignment.

Probe D is included in the Basic delivery set of the Leeb Hardness tester TQ-3C.

The Probe D is used for hardness testing:

• All basic types of metals and alloys without additional calibrations (structural, tool, corrosion-proof, heat-proof, non-corrosive steels and alloys as well as alloys of nonferrous metals, castiron, aluminium, bronze, brass);
• Items with surface hardening and high frequency current hardening;
• Items of complicated configuration;
• Heavy and big items with rough surface.

Advantages of Leeb probe

• Hardness measurement in hard-to-reach areas.
• The spatial position of the probe does not affect the measurement result.
• The robust housing is not subject to mechanical stress.
• Long service life.

Probes characteristics

Photo	Probe Type	Weight/thickness/ surface roughness of the article under check	Length/ Diameter	Application
	«D»	3 kg/6 mm/Ra 3,2	138/21 mm	Solving of main hardness testing tasks with surface roughness less than 3.2 Ra
	«E»	3 kg/6 mm/Ra 3,2	138/21 mm	Probe with polycrystalline indenter made of cubic boron nitride to test materials with high hardness
	«G»	6 kg/55 mm/Ra 7,6	200/29 mm	Hardness testing of high structure inhomogeneity items with surface roughness more than 7.2 Ra

ATTENTION! If you buy only Probe D, the Hardness tester TQ-3C should be sent to the retrofit and alignment.

Probe G of increased overall dimensions and impact energy (relative to the probe “D”).
Is used to control materials with high structural heterogeneity (cast iron, bronze) at high surface roughness.

Can be used only at the hardness less than 450 HB.

The Probe G is used for hardness testing:

• All basic types of metals and alloys without additional calibrations (structural, tool, corrosion-proof, heat-proof, non-corrosive steels and alloys as well as alloys of nonferrous metals, castiron, aluminium, bronze, brass);
• Items with surface hardening and high frequency current hardening;
• Items of complicated configuration;
• Heavy and big items with rough surface.

Advantages of Leeb probe

• Hardness measurement in hard-to-reach areas.
• The spatial position of the probe does not affect the measurement result.
• The robust housing is not subject to mechanical stress.
• Long service life.

Probes characteristics

Photo	Probe Type	Weight/thickness/ surface roughness of the article under check	Length/ Diameter	Application
	«D»	3 kg/6 mm/Ra 3,2	138/21 mm	Solving of main hardness testing tasks with surface roughness less than 3.2 Ra
	«E»	3 kg/6 mm/Ra 3,2	138/21 mm	Probe with polycrystalline indenter made of cubic boron nitride to test materials with high hardness
	«G»	6 kg/55 mm/Ra 7,6	200/29 mm	Control of items with high structural heterogeneity (cast iron, bronze) and surface roughness Ra from 3.2 to 7.6

ATTENTION! If you buy only Probe G, the Hardness tester TQ-3C should be sent to the retrofit and alignment.

Adapter “Z3” facilitates measurement of hardness by Leeb Hardness tester TQ-3C metal items with flat or curved (cylindrical) surface with a diameter at least 18 mm.

Special head is screwed onto the probe instead of the standard support nut.

Adapter “Z3” is purposed for following probes:

• Probe D
• Probe D with socket
• Probe E
• Probe E with socket

Sensor «1×4» included in the standard delivery of Crack depth meter ET-28 electro potential.

Sensor is designed to measure the depth of cracks from 0.5 to 30 mm. This sensor has 4 electrodes, which are arranged in a row.

Operational advantages

• Control of ferromagnetic and non-ferromagnetic materials(stainless steel, aluminum alloys, etc.)
• Measurings range – from 0.5 to 30 mm.
• Mobile spring-loaded contact electrodes of the sensor enable the user to perform measurements on curved surfaces.
• Low impact of the material electromagnetic properties on the measurement result.

Crack depth meter ET-28 – high-precision instrument for measuring the depth of cracks exposed on various metals and alloys (incl. stainless steel, duraluminum), previously detected by other methods.

The operating principle of the Crack Depth Meter – AC electro potential measuring that provides prompt and precise depth test (in comparison to traditional methods).

Typical control objects:

Sensor «2×2» is designed to work on surfaces with a small distance between cracks.
This sensor has 4 electrodes, which are arranged in two rows.

Operational advantages

• Control of ferromagnetic and non-ferromagnetic materials(stainless steel, aluminum alloys, etc.)
• Measurings range – from 0.5 to 20 mm.
• Work on a surface with a close location of cracks (“grid”).
• Sensor «2×2» allows you to take measurements in hard-to-reach places.
• Mobile spring-loaded contact electrodes of the sensor enable the user to perform measurements on curved surfaces.
• Low impact of the material electromagnetic properties on the measurement result.

Crack depth meter ET-28 – high-precision instrument for measuring the depth of cracks exposed on various metals and alloys (incl. stainless steel, duraluminum), previously detected by other methods.

The operating principle of the Crack Depth Meter – AC electro potential measuring that provides prompt and precise depth test (in comparison to traditional methods).

Typical control objects:

Sensor «3+1» with external electrode is designed to measure the depth of cracks than 30 mm.

This sensor has 4 electrodes, 3 of which are arranged in one row, and 1 current electrode is external.

The external electrode allows you to increase the voltage, thereby expanding the measurement range of crack depth to 100 mm.

Operational advantages

• Control of ferromagnetic materials.
• Measurings range – from 30 to 100 mm.
• Sensor «3+1» allows you to take measurements in hard-to-reach places.
• Mobile spring-loaded contact electrodes of the sensor enable the user to perform measurements on curved surfaces.
• Low impact of the material electromagnetic properties on the measurement result.

Crack depth meter ET-28 – high-precision instrument for measuring the depth of cracks exposed on various metals and alloys (incl. stainless steel, duraluminum), previously detected by other methods.

The operating principle of the Crack Depth Meter – AC electro potential measuring that provides prompt and precise depth test (in comparison to traditional methods).

Typical control objects:

Test block with 3 cracks KO28-1 is designed to test the operability of the Crack depth meter ET-28.

The sample is made of structural carbon steel.

Before each use of the device for measuring the depth of cracks on the product, it is necessary to check its operation on a control sample.

The main characteristics of Test block KO28-1:

• 3 cracks of different depths were simulated on the KO28-1 sample: 1, 2, and 5 mm.
• KO28-1 is included in the basic delivery set of the Crack depth meter ET-28 electro potential.

Special test block KO28-2 for crack measurement is designed to test the operability of the Crack depth meter ET-28 electro potential.

5 cracks of different depths were simulated on the KO28-2 sample: 2, 5, 10, 20, 30 mm.

The sample is made of structural carbon steel.

Before each use of the device for measuring the depth of cracks on the product, it is necessary to check its operation on a control sample.

Control sample KO-345 with simulated crack is designed to test the operability of the Eddy-current flaw detector ED-45 and the Crack depth meter ET-28.

The sample is made of structural carbon steel grade No. 20.

Before each use of the device for measuring the depth of cracks on the product, it is necessary to check its operation on a control sample.

The main characteristics of KO-345:

• A crack with a depth range of 1.8 – 2 mm was simulated on the sample.
• KO-345 is included in the basic delivery set of the Eddy-current flaw detector ED-45.

Control sample KO-345 with simulated crack is designed to test the operability of the Eddy-current flaw detector ED-45 and the Crack depth meter ET-28.

The sample is made of structural carbon steel grade No. 20.

Before each use of the device for measuring the depth of cracks on the product, it is necessary to check its operation on a control sample.

The main characteristics of KO-345:

• A crack with a depth range of 1.8 – 2 mm was simulated on the sample.
• KO-345 is included in the basic delivery set of the Eddy-current flaw detector ED-45.

This cable is designed to connect the electronic unit of the magnetic-eddy-current Eddy-current flaw detector ED-45 with the standard sensor “N-45”.
Cable length 115 mm.
Unique connectors ensure stable transmission of information during operation of the device.

Eddy-current flaw detector ED-45 is intended for detecting cracks and measuring their depth (detecting stress- corrosive cracks in metal ferromagnetic constructions) even under layer of corrosion and/or protective coating.

Flaw detector enables to measure depth of corrosive damage as well as thickness of protective coating.

The device combines magnetic and eddy-current methods for flaws detection, which enables the user to control products with rough corroded surface and to measure through the layer of insulating coating of variable thickness without any additional readjustment.

Objects of control:

• pipes, pipelines,
• oil and gas pipelines,
• vessels, pressure vessels,
• objects of energy production,
• details of structures, machines and mechanisms.

Probe N-45 is intended for detecting cracks and measuring their depth (detecting stress- corrosive cracks in metal ferromagnetic constructions) even under layer of corrosion and/or protective coating.

Construction of Probe N-45

The Probe N-45 consists of following: metal housing and elements of excitation and reception of magnetic field. Sensor surface contacting with controlled surface is made of zirconium ceramics.
There are two indicators on the probe: red one signalizing about crack and yellow one signalizing about change of thickness of protective coating (or about corrosive damage).
The cable connects sensor and the electronic unit Eddy-current flaw detector ED-45.

Eddy-current flaw detector ED-45 combines magnetic and eddy-current methods for flaws detection, which enables the user to control products with rough corroded surface and to measure through the layer of insulating coating of variable thickness without any additional readjustment.

Objects of control:

• pipes, pipelines,
• oil and gas pipelines,
• vessels, pressure vessels,
• objects of energy production,
• details of structures, machines and mechanisms.

ATTENTION! If you buy only Probe N-45, the Eddy-current flaw detector ED-45  should be sent to the retrofit and alignment.