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