Miniature ultrasonic hardness testers

These testers are entered in the State public measuring instruments register of Russian Federation under № 40419-09

Exacting, reliable, easy to use and easy to access hardness control of metal articles.

Purpose:

Hardness control of metal articles more than 1 mm thick, without any limitations in mass by ultrasonic contact impedance method (UCI method).

There are the following modifications of the hardness tester:
MET-HRC (Rockwell scale "С")
МЕТ-HB (Brinell scale)
МЕТ-HV (Vickers scale)
МЕТ-HSD (Shore D scale).

The principle of operation is based on frequency of indenter free oscillation determination (acoustic resonator with diamond Vickers pyramid) under the constant effort of 9.8 H (1 kgf).

Range and error of measurements:

Hardness tester name	Hardness scale	Measurement range	Measurement error
МЕТ-HRC	Rockwell (scale "С")	20 - 70 HRC	±1,5 HRC
MET-HB	Brinell	75 - 650 HB	±10 HB
MET-HV	Vickers	75 - 1000 HV	±12 HV
MET-HSD	Shore	23 - 102 HSD	±2 HSD

Main advantages:

1. Easy, compact, comfortable to use. Hardness tester without electronic module, without connection cable and keys! Unique palm size hardness tester!
2. High measurement accuracy. The accuracy is achieved by special calibration which is provided by the transfer of hardness values from the national primary standard hardness machine directly to mini hardness testers through the reference hardness blocks.
3. Ideal for using one method only (Rockwell "C" scale for instance).

Distinctive features:

1. No limitations in mass and shape.
2. No visible prints on surfaces (mirror surfaces, crankshaft journals, knives).
3. Compact sizes and universal construction of the nozzle enable to measure even in hard to get places, inside mechanic assembles in any position not deinslalling the detail and halting the manufacturing process.
4. Firm aluminum body modern design and well thought ergonomical characteristics.

Area of application:

1. Pipeline and thin walled constructions hardness control.
2. Metal-working.
3. Blacksmith's work and welding engineering.
4. Vehicle repair (enginechiselling out, polishing).
5. Cold steel testing.
6. Metalware acceptance/tempering (inspection and outgoing inspection).

Technical characteristics:

Overall dimensions, mm: Length Width Height	70 50 82
Mass, g	250
Applied force, N (kgf)	9,8 (1)
Time of one measurement, sec	2
Power supply	1 AA battery
Time of measurements on one power supply set, hours	60
Automatic power supply disconnection, sec	60
Temperature range from.. to.. while in operation, °С:	-10 ... + 55
Relative humidity, %	30 ... 80
Location and angle of hardness tester while testing	Any (does not influence on measurement accuracy)
Indication on the display while testing	Measurement result Number of current measurement
Indication on the display while calculation the average result	Average result Number of measurements
Roughness of tested surface, Ra	2,5
Radius of curvature on tested surface not less than, mm	5
Width of tested sample not less than, mm:	1
Tester resources (minimum number of testings):	200000
Processing of the results and connection to computer by USB port	No
Display highlight	No
Calibration by a customer	No
Changes archive	No

Complete set:

• Mini ultrasonic hardness tester МЕТ-HRC (МЕТ-HB, МЕТ-HV, МЕТ-HSD).
• Power supply element AA type.
• Operational manual.
• Guarantee coupon.
• Calibration certificate.
• Wrist lace.
• Tester case.

Дизайн:

Жирякова Анна Дмитриевна
Анохина Маргарита Вячеславовна

© Centre "МЕТ" +7 (495) 229-75-26, 506-90-38 E-MAIL