NOVOTEST T-UD3, Руководство по эксплуатации, Страница: 6 / 53

Operation Manual
Hardness Tester NOVOTEST T-UD3
Page. 6
Table 1.2 - Measurement range and limits of the basic permissible error
Hardness scale Measurement range
Measurement error
U1 Leeb
Rockwell, HRC From 20 to 70 ±2 ±2
Brinell, HB from 90 to 150
±10
±10
Brinell, HB from 150 to 650 ±15
Vickers, HV from 240 to 500
±15
±15
Vickers, HV from 500 to 940 ±20
Leeb, HL from 300 to 800 – ±4
Shore, HS from 30 to 100 Is determined when markup
Strength limit σ
v
(reference), МP
a from 370 to 1500 Is determined when markup
Table 1.3 - Characteristics of probes
Probe Type U1 (98 N) U1 (50 N) U1 (10 N) Leeb
Overall dimensions, mm
Ø30х140 Ø30х140 Ø30х140 Ø20х145
Weight, g, not more than 250 250 250 130
Roughness of the measured surface, Ra 3,2 2,5 1,5 3,2
Radius of curvature of the measured
surface, mm
5 5 5 10
Weight of the controlled product, not less
than, kg
0,1 0,1 0,1 5
Thickness of the controlled product, not
less than, mm
1,5 1 0,8 12
Load, kgf 10 5 1 -
The device corresponds to: ASTM A956 “Standard Test Method for Leeb Hardness Testing of
Steel Products”; ASTM A1038 “Standard Test Method for Portable Hardness Testing by the
Ultrasonic Contact Impedance Method”.
Device body protection.
Level of the device body protection from penetration of solids and water is according to required
standard.
MTBF
Mean time between failures (MTBF) of the device without taking into account the reliability
factor of the probes is not less than 6000 h.
Service time
The total average service life of the device is not less than 10 years.
The criteria of decommissioning of the device - economic inexpediency of restoring the operable state
of the components of the instrument by repairing.