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UT 5021 PA Tochline

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Universal hardness tester

Universal hardness tester UT 5021 PA is designed to measure the hardness of metals and alloys according to the methods of Rockwell, Brinell and Vickers.

TECHNICAL SPECIFICATIONS
Test loads on Vickers scales, N:	49,0; 98,0; 196; 294; 392,3; 490; 588,4; 784,5; 980; 1177
Vickers hardness measuring range, НV:	from 8 to 2000
Test loads on Rockwell scales, N:	588,4; 980,7; 1471
Ranges of hardness measurements on Rockwell scales, N:
Scale А, HRA	from 20 to 88
Scale В, HRB	from 20 to 100
Scale С, HRC	from 20 to 70
Ranges of hardness measurements on Brinell scales, HB, HBW:
1/5 (load 49 N)	from 15,9 to 100
2,5/6,25 (load 61,5 N)	from 3,18 to 20
1/10 (load 98 N)	from 31,8 to 200
2/10 (load 98 N)	from 7,96 to 50,1
2,5/15,6 (load 153,2 N)	from 7,96 to 50,1
2/20 (load 196 N)	from 15,9 to 100
1/30 (load 294 N)	from 95,4 to 650
2,5/31,2 (load 306,5 N)	from 15,9 to 100
2/40 (load 392 N)	from 31,8 to 200
2,5/62,5 (load 613 N)	from 31,8 to 200
10/100 (load 981 N)	from 3,18 to 20
2/120 (load 1176 N)	from 95,5 to 650
5/125 (load 1226 N)	from 15,9 to 100
2,5/187,5 (load 1839 N)	from 95,5 to 650
Limits of permissible absolute error of hardness measurement on Rockwell scales: HB, HBW:
from 20 to 70 HRA	± 2,0
from 70 to 93 HRA	± 1,2.0
from 25 to 100 HRB	± 2,0
from 20 to 35 HRC	± 2,0
from 35 to 55 HRC	± 1,5
from 55 to 70 HRC	± 1,0
Limits of permissible relative error in measuring hardness according to Brinell scales,%	± 3,0
Limits of permissible relative error in measuring hardness on Vickers scales,%	± 3,0
Limits of permissible absolute measurement error measuring microscope, mm	± 0,001
Working space of a measuring microscope vertically, mm	240
Depth of the working space of the measuring microscope, mm	145
Operating conditions:
air temperature, °С	from 50 to 80
Overall dimensions (length/width/height), mm, no more than	490х170х780
Weight, kg, no more than	95

The UT 5021 PA hardness tester is a stationary measuring instrument consisting of a load application system and a measuring unit.

The principle of operation of the hardness tester is based:
• for Vickers scales - on the static indentation of a diamond pyramidal tip with subsequent measurement of the lengths of the diagonals of the restored fingerprint;

• Rockwell scales - on the static indentation of diamond or ball tips with subsequent measurement of the penetration depth of the tip;

• for Brinell scales - on the static indentation of a carbide ball tip with subsequent measurement of the diameter of the circumference of the restored fingerprint.

The hardness tester has a digital indicator in the form of a liquid crystal display, contains a microprocessor.
When measured by the Rockwell method, the instrument load application system provides 588.4 load application; 980.7; 1471 N
Rockwell measurements take place automatically.
When measured according to the Vickers method, the device load application system provides 49.0 load application; 98.0; 196; 294; 392.3; 490; 588.4; 7845; 980; 1177 N
When measured by the Brinell method, the application system of the load of devices provides the application of loads of 49.0; 61.5; 98.0; 153.2; 196; 294; 306.5; 392; 613; 981; 1176; 1226; 1839 N.
The design of the hardness tester should be reliably protected from unauthorized access, adjustment of factory settings and software.
The UT 5021 PA hardness gage is equipped with a high-precision strain gauge sensor.

SOFTWARE
Special software for the built-in microprocessor hardness tester software is used to enter the initial parameters and start the load application cycle, record, store and statistically process the measurement results and display them on the digital liquid crystal display.
Features of the digital-to-digital unit:
• Interactive work;
• Hardness scale selection;
• Setting the exposure time under load;
• Recalculation of hardness values, taking into account amendments for convex spherical and cylindrical surfaces in accordance with GOST 9013-59;
• Display of loading process and holding time;
• Sorting into hardness groups LESS, NORMAL, MORE;
• Statistical processing of a series of measurements;
• Saving the results in the memory of CB;
• Auto-tuning (calibration) according to standard measures of hardness;
• Recalculation of hardness values in other scales and methods;
• Touch control;
• Multi-user interface;
• Saving results to a USB flash drive.
• Semi-automatic optical system for measuring print size according to the Brinell and Vickers methods with automatic data transfer and hardness display.

TECHNICAL SPECIFICATIONS

Test loads on Vickers scales, N:
49,0; 98,0; 196; 294; 392,3; 490; 588,4; 784,5; 980; 1177

Vickers hardness measuring range, НV:
from 8 to 2000

Test loads on Rockwell scales, N:
588,4; 980,7; 1471

Ranges of hardness measurements on Rockwell scales, N:

Scale А, HRA
from 20 to 88

Scale В, HRB
from 20 to 100

Scale С, HRC
from 20 to 70

Ranges of hardness measurements on Brinell scales, HB, HBW:

1/5 (load 49 N)
from 15,9 to 100

2,5/6,25 (load 61,5 N)
from 3,18 to 20

1/10 (load 98 N)
from 31,8 to 200

2/10 (load 98 N)
from 7,96 to 50,1

2,5/15,6 (load 153,2 N)
from 7,96 to 50,1

2/20 (load 196 N)
from 15,9 to 100

1/30 (load 294 N)
from 95,4 to 650

2,5/31,2 (load 306,5 N)
from 15,9 to 100

2/40 (load 392 N)
from 31,8 to 200

2,5/62,5 (load 613 N)
from 31,8 to 200

10/100 (load 981 N)
from 3,18 to 20

2/120 (load 1176 N)
from 95,5 to 650

5/125 (load 1226 N)
from 15,9 to 100

2,5/187,5 (load 1839 N)
from 95,5 to 650

Limits of permissible absolute error of hardness measurement on Rockwell scales: HB, HBW:

from 20 to 70 HRA
± 2,0

from 70 to 93 HRA
± 1,2.0

from 25 to 100 HRB
± 2,0

from 20 to 35 HRC
± 2,0

from 35 to 55 HRC
± 1,5

from 55 to 70 HRC
± 1,0

Limits of permissible relative error in measuring hardness according to Brinell scales,%
± 3,0

Limits of permissible relative error in measuring hardness on Vickers scales,%
± 3,0

Limits of permissible absolute measurement error measuring microscope, mm
± 0,001

Working space of a measuring microscope vertically, mm
240

Depth of the working space of the measuring microscope, mm
145

Operating conditions:

air temperature, °С
from 50 to 80

Overall dimensions (length/width/height), mm, no more than
490х170х780

Weight, kg, no more than
95

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