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Operation Manual

Hardness Tester NOVOTEST T-UD3

Page. 44

4. Determination of
the basic error of the
instrument according
to the

НB

scale

3.3.5

Reference

hardness test

blocks

yes

5. Determination of
the basic error of the
instrument according
to the

НV

scale

3.3.6

Reference

hardness test

blocks

yes

3.2.2 Visual inspection

The device standard set should be in accordance with p.1.3.
No foreign objects should be inside the electronic unit, when tilting the device detected by
hearing.
Probes and its parts should not have any corrosion and mechanical damages.

3.2.3 Testing

The device is tested according to p. 1.7, and also:

−

NOVOTEST T-U3 testing is carried out with an Ultrasonic Contact Impedance Probe U1;

−

NOVOTEST T-D3 testing is carried out with a Rebound Leeb Probe.

3.2.4 Determination of the basic error of the instrument according to the HRC scale

Select the HRC hardness measurement.

Select the statistics measurement mode.

Carry out at least 3 measurements of

𝐻𝐻𝐻𝐻𝐻𝐻

𝑖𝑖

on hardness reference blocks (excluding explicit

measurement errors).

Determine the basic error of hardness measurement on the HRC scale using the formula:

(1)

where

– number of measurements.

Select the hardness measurement on user scale

НRС

Select the statistics measurement mode p. 2.3.5.

Make at least 3 measurements of

𝐻𝐻𝐻𝐻𝐻𝐻

𝑖𝑖

on hardness reference blocks (excluding explicit

measurement errors).

Determine the basic error of hardness measurement on the HRC scale by the formula (1).

If the error exceeds the allowable value (Table 1.2), then it is necessary to calibrate the user
scale according to p. 2.3.7.

10.

Repeat operations 6 through 8.

11.

The basic error of hardness measurement for the HRC scale and for the user

НRC

scale should

not exceed ± 2,0 НRC

3.2.5 Determination of the basic error of the instrument on the scale HB

Select the hardness measurement on the HB scale.

Select the statistics measurement mode.

Carry out at least 3 measurements of

𝐻𝐻𝐻𝐻

𝑖𝑖

on hardness reference blocks (excluding explicit

measurement errors).

Determine the basic error of hardness measurement on the HB scale by the formula:

Содержание T-UD3

Страница 1: ...Combined Hardness Tester NOVOTEST T UD3 Operating Manual 2019...

Страница 2: ...Marking and sealing 13 1 9 Packing 13 2 INTENDED USE 14 2 1 Operational limitations 14 2 2 Preparing the device for use 14 2 2 1 Visual inspection 14 2 2 2 Installing the batteries 14 2 2 3 Connecting...

Страница 3: ...e instrument on the scale HB 44 3 2 6 Determination of the basic error of the instrument on the scale V 45 3 3 Warranty 45 3 3 1 Basic warranty 46 3 3 2 Extended warranty 46 3 3 3 Warranty for repaire...

Страница 4: ...manual Hardness testers for metals are used for material hardness testing without destroying its structure Hardness property of a material to resist the elastic and plastic deformation or destruction...

Страница 5: ...m generators collectors boiler drums gas holders etc rotors of turbines and generators pipelines rolls crankshafts gears parts of various vehicles industrial semi finished products castings forgings s...

Страница 6: ...dius 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...

Страница 7: ...ut the delivery set is indicated on the separate document 1 4 Purpose of the probes The Rebound Leeb Probe Figure 1 1 Rebound Leeb Probe purposed for hardness measurement by dynamic method It is inten...

Страница 8: ...e hardness of material with increased requirements to the imprint size polished surfaces to measure the hardness of surface hardened layers 1 kg load is to be applied for measurement automatically con...

Страница 9: ...6 electronic unit 7 probe socket 8 flash light 9 photo camera 10 mini USB socket 11 cover 12 threaded connections for cover Figure 1 2 Hardness tester NOVOTEST T UD3 Figure 1 3 Control buttons and the...

Страница 10: ...of different diameters The probe with the removed washer is used for carrying out of measurement of hardness in narrow and hardly accessible places To measure hardness on flat surfaces the washer on t...

Страница 11: ...ntact impedance method for measuring hardness is used to measure hardness of objects with low mass from 0 1 kg and wall thickness over 1 mm hardness of products with a glossy surface if the minimum im...

Страница 12: ...uces an electromotive force EMF in it The signal from the output of the induction coil is fed to the input of the electronic unit where it is converted into a hardness value of the selected scale and...

Страница 13: ...rdness measuring of the reference hardness test blocks 2 category reference hardness blocks should be grounded through a lubricant layer to the grinding plate weighing not less than 5 kg Mismatch read...

Страница 14: ...g it into the room with a positive temperature it is necessary to keep the device in its package for at least 6 hours in order to avoid failure due to condensation of moisture 2 2 Preparing the device...

Страница 15: ...nt The results of measurements by the UCI method are affected not only by the properties of the metal during plastic deformation but also by the Young s modulus modulus of elasticity It entails the ne...

Страница 16: ...e plate its support surface underside should be covered with a thin layer of lubricant Then the product is to be ground to the plate surface in this way that between the surfaces and plates there are...

Страница 17: ...kspace section is located and the information area provides information about the batteries charge connecting the device to PC SD card presence and current time Before using the device make sure that...

Страница 18: ...ch products must be ground to a massive polished plate 1 Before measurements it is necessary to prepare the surface according to p 2 3 1 2 Plug the UCI probe 3 Turn on the device by long pressing 4 As...

Страница 19: ...en mode selection menu Figure 2 8 using keys and select the mode GRAPH HISTOGRAM STATISTICS INTELLECTUAL SIGNAL Figure 2 8 Measurement mode selecting 8 Place the probe thrust washer on the sample surf...

Страница 20: ...ult is displayed on the display until the next measurement Figure 2 10 The display after measurement 10 After the measurements the user can save measurement series of measurements into archive by pres...

Страница 21: ...keys and put the marker on the point where the measurement was occurred press key to save or to put another marker on the photo Confirm saving of the pointed marker by pressing key saving photo withou...

Страница 22: ...ales U1 U2 U3 6 Select the required material By pressing open the selection menu Figure 2 13 with the keys and select the required material steel alloy steel stainless steel gray iron ductile iron NOD...

Страница 23: ...f the probe with one hand and with other hand charge the spring of the probe by mowing the upper housing part down Figure 2 16 Figure 2 16 Charging the spring of the probe 11 Smoothly push the trigger...

Страница 24: ...ld worked metal in the imprint zone 2 3 6 Measurement modes Enter measurement mode and press key to enter the mode selection menu Figure 2 19 The device will offer user the following measurement modes...

Страница 25: ...e 2 3 6 3 Statistics Statistics mode allows user to view the following parameters in a series of measurements maximum minimum deviation average coefficient of variation of a random variable number of...

Страница 26: ...measurements The first three series of measurements that do not exceed permissible error are selected After that the next measurements which exceed the permissible error will be excluded from the ser...

Страница 27: ...rrect value Kalman filter is recommended to be used when measuring heterogeneous structure product where there are hardness value jumps which must be taken into account when calculating the common har...

Страница 28: ...TION from the main menu Each table cell corresponds to a specific calibration scale for a particular material Figure 2 27 All calibrations can be calibrated for any materials and any scales and are th...

Страница 29: ...rt the calibration enter the real hardness values of the samples by pressing the key Using navigation keys and to set up the real hardness values push key to enter the next value Figure 2 30 Figure 2...

Страница 30: ...exit without saving Figure 2 33 Figure 2 33 Saving 2 3 7 2 User additional calibration Each of the stored calibrations can be corrected The user calibration of the hardness tester during the inter se...

Страница 31: ...the instrument shows a stable deviation when measuring the hardness on it 1 To calibrate by two points select CALIBRATION in the main menu Figure 2 34 Figure 2 34 Grading 2 Use the navigation keys to...

Страница 32: ...ment will be deleted from the seriers Figure 2 37 Calibration measurements Press and using and set the nominal hardness value of the reference sample 6 Use key to move to the next value press to save...

Страница 33: ...ess YES to save or key NO to exit without saving 9 The saved user calibration will be marked with a special state of the cell Figure 2 40 Figure 2 40 User calibration marking 10 To delete user calibra...

Страница 34: ...average value VOLUME adjust the volume of the device AUTO OFF setting the device to automatically turn off when not in use RETRO allows the user to return to the measurement mode with the last measur...

Страница 35: ...backup copies of calibrations After the probe calibrating it is recommended user to create a backup calibration usually the manufacturer calibrates 1 2 scales to check the probe This is done in order...

Страница 36: ...o fixation of the measuring point is used in models with a photo camera The user can install photo fixation mode in the device settings For this go to the SETTINGS section from the main menu using the...

Страница 37: ...TAKE A PICTURE or SAVE WITHOUT PHOTO Figure 2 48 Figure 2 48 Picturing the object 3 Press key to save the measurement without photos or point the camera at the measured object so that the measuring po...

Страница 38: ...Figure 2 50 Marking of the measuring point 2 3 13 Connecting to PC 2 3 13 1 Software setup When connecting to PC the data may be sent from the device and to the device as well Archive measurement dat...

Страница 39: ...9 Install the program to work with the device For this run the setup exe file of the program installation and click the INSTALL button Figure 2 52 Figure 2 52 Installing AWP Universal 10 After the in...

Страница 40: ...number the hardness scale and also the material of the measurement object The table shows following record parameters Maximum Minimum Amplitude Average value Standard deviation Mean square deviation V...

Страница 41: ...e device Figure 2 54 Figure 2 54 COLOR SETTING tab To load the current color settings click on the LOAD button and then select the edited color theme with the PALETTE button To edit click on the color...

Страница 42: ...Operation Manual Hardness Tester NOVOTEST T UD3 Page 42 Figure 2 55 Screen saving tab...

Страница 43: ...ation procedure calibration hereinafter verification applies to hardness testers NOVOTEST T UD3 and establishes methods and means of their primary and periodic verification Verification conditions and...

Страница 44: ...ode 3 Carry out at least 3 measurements of on hardness reference blocks excluding explicit measurement errors 4 Determine the basic error of hardness measurement on the HRC scale using the formula 1 w...

Страница 45: ...Make at least 3 measurements of on hardness reference blocks excluding explicit measurement errors 8 Determine the basic error of hardness measurement on the V scale by the formula 3 9 If the error ex...

Страница 46: ...d parts All NOVOTEST brand spare parts installed during the warranty repair process are covered by the NOVOTEST guarantee until the end of the warranty period Spare parts replaced during warranty serv...

Страница 47: ...rdingly Make notes in the SERVICE AND MAINTENANCE RECORDS about instrument maintenance save all invoices and receipts If necessary they will serve as proof that the maintenance was carried out in time...

Страница 48: ...ring and greasing Planned maintenance is carried out by the manufacturer at least once a year and is a mandatory requirement for maintaining the guarantee from the manufacturer It is very important to...

Страница 49: ...nation Name of malfunction external manifestation and additional signs Probable cause Method of elimination The device does not turn on No power Check the presence and status of self contained power N...

Страница 50: ...e there should be no vapors of corrosive substances acids alkalis and direct sunlight The device must not be subjected to sudden shocks falls or strong vibrations Devices should be stacked on shelves...

Страница 51: ...Operation Manual Hardness Tester NOVOTEST T UD3 Page 51 SERVICE AND MAINTENANCE RECORDS Description Date...

Страница 52: ...Operation Manual Hardness Tester NOVOTEST T UD3 Page 52...

Страница 53: ...______ __________________________________________________________________________________ __________________________________________________________________________________ ___________________________...

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