sinowon vickers hardness tester hv-50ac serial operation manual en

Instruction Manual

DongGuan Sinowon Precision Instrument Co.,Ltd.

R

Advanced Digital Vickers Hardness tester

HV-10AC(#821-171)

HV-30AC(#821-181)

HV-50AC(#821-191)

1

Instruction Manual of Advanced Digital Vickers Hardness tester

Contents

1. Precautions .................................................................................................2

2. Appearance Structure of Hardness Tester....................................................... 3

3. A Brief Introduction of Hardness Tester .......................................................... 4

4. Explanation of Model Compiled ..................................................................... 5

5. Main Technical Specifications........................................................................6

6. Installation of the Hardness Tester .................................................................7

7. Introduction to the Operating Board................................................................8

8. Usage of the Hardness Tester ......................................................................10

9. Regulation and Precautions of the Hardness Tester .......................................14

10. RS232 Hyper Terminal Setting ...................................................................16

11. Appendix Table .........................................................................................17

12.Accessories (The Packing List) ...................................................................18

2


1.1 It is advisable to use the single-phase 3-pin socket for the power source connection on the present

instrument. The grounding end must be according to the stipulated requirement for earth protecting.

1.2 I t is necessary to read careful ly the usage instruct ion manual before the operat ion of the present

instrument in order to know the operational procedures and the precautions so as to avoid the damages

to the instrument and the personal unsafe accident caused by the incorrect operation.

1.3 During the installment and the preoperational test, the sticking paper that protects the indenter against

the shock during the transportation should be taken off carefully because the over-strength in doing it would

affect the positional precision of the indenter.

1.4 It is prohibited to dismount and alternate without permission all the electric component parts, the switches

and sockets as well as their fixed positions, otherwise, it will cause accident.

1.5 If find abnormal phenomena during loading, press “STOP” key at once. The instrument will stop loading

automatically and return to its initial position.

1.6 The standard accessory of Vickers indenter is equipped on present instrument. If require to replace with

a Knoop indenter, it must be very carefully, otherwise it will damage the pressure sensor caused by improper

operation of replacement. Detail, see introduction in Section 9 of present instruction manual.

1.7 Our company tries to improve the quality of the hardness testers and renew their structure continuously.

In case the contents in the USAGE INSTRUCTION MANUAL are a bit different with the actual structure

of the instrument, it is hoped and apologized for the fact that the further notice will not be given.

Precautions

1. Upper Cover 2. Micro Eyepiece 3.Motorized Turret

4. Indenter 5.Test Table 6 .Upper and Down Lead Screw

7. Hand Wheel 8. Switch 9. RS232 Socket 10. Fuse & Power Cord

11. Printer 12. Regulating Screws 13. Operating Board

14. 10x Objective 15. 40x or 20x Objective 16. Left Drum Wheel

17. Right Drum Wheel 18. Input Button

Appearance Structure of Hardness Tester

3


Fig.1

4


3.1 The Digital Vickers Hardness Tester is a new type high-tech product combining the optical, mechanic

and electronic techniques; with a large LCD screen display, a novel and pleasing appearance, direct-

viewing, operational functions and reliability, hence it is an ideal instrument for the testing of Vickers

hardness. It has an auto-shifting device between indenter and objectives.

3.2 The hardness tester is adopted such techniques as a precise design in the field of mechanics, a higher

amplification objectives and digital micro eyepiece in optics field and cold light source for measuring light

source, etc.

3.3 Due to adopt the closed-circuits in loading control system, it makes the accuracy of test force higher,

the repeatability and stability of displaying values better. It is the initiate of home to adopt this system

on Vickers hardness tester.

3.4 By means of touch keys on the operating board, the dwell time for test force can be preset, the luminosity

of light source can be regulated, Vickers or Knoop measuring method can be selected, hardness scales

can be exchanged and files can be stored, etc. All the testing data such as the indentation length, the

hardness value, the number of the measurements, and year, month, day, and time are all shown on the

LCD screen. It can test result and handle data, and output by printer as well. By means of RS232 interface,

the instrument would be connected with computer.

3.5 According to the particular requirements of the client, the instrument can be equipped with CCD device

to enable the video measuring and auto image measuring. The instrument is suitable for testing the micro

and thin pieces, the parts with the permeated and coated surface, it is also fit for testing Vickers hardness

value for the crisp materials such as the agate, glass and it is, therefore, an ideal hardness measuring

instrument for the scientific research institutes, the universities, the industrial production units and the

metrological institutes using with for studying and measuring.

A Brief Introduction of Hardness Tester

5


Explanation of Model Compiled

Max values of test force respectively

as:49.03N

294.2N(30Kgf) 490.3N(50Kgf)

(5Kgf) 98.07N(10Kgf)

H V- 1 0 / 3 0 / 5 0 A C

With a built-in printer and auto-

shift device between indenter

and objectives

Vickers hardness tester with

a large displaying screen

Total Amplification Min. Test Unit

100x

200x

400x

0.25um

0.125um

0.0625um

6


Main Technical Specifications

5.1 Test forces:

HV-10AC

HV-30AC

HV-50AC

2.942N, 4.903N, 9.807N, 19.61N, 24.52N, 29.42N, 49.03N, 98.07N(0.3Kgf, 0.5Kgf, 1Kgf, 2Kgf, 2.5Kgf, 3Kgf, 5Kgf, 10Kgf)

4.903N, 9.807 , 19.61 , 29.42 , 49.03 , 98.07 , 196.1 , 249.2N(0.5Kgf, 1Kgf, 2Kgf, 3Kgf, 5Kgf, 10Kgf, 20Kgf, 30Kgf)

N N N N N N

9.807 , 19.61 , 29.42 , 49.03 , 98.07 ,196.1 , 294.2 , 490.3N(1Kgf, 2Kgf, 3Kgf, 5Kgf, 10Kgf, 20Kgf, 30Kgf, 50Kgf)

N N N N N N N

5.2 The repeatability of displaying values for hardness tester (see appendix table 1) and the allowed

tolerance of displaying value (see appendix table 2)

5.3 Test force application method: automatic loading, dwelling and unloading

5.4 The shifting method between indenter and objectives: auto shift

5.5 With built-in printer

5.6 Total Amplification of the measuring Microscope:

Model Micro Eyepiece Objectives Total Amplification

HV-10AC

HV-30AC

HV-50AC

10x

10x, 40x

10x, 20x

100x, 400x

100x, 200x

5.7 Min test unit

5.8 Dwell time of the test force: 0~60s (5 second as a unit)

5.9 Max height of the specimen:170 mm

5.10 Distance between the center point of the indenter and the exterior panel: 130mm

5.11 Weight of the main body:50kg or so

5.12 Power source: (110~220) AV, (50~60) Hz

5.13 Overall dimension (L x W x H): (530×225×630)mm

7


6.1 Operational Conditions of hardness tester

6.1.1 Room temperature within (23±5)℃ ;

6.1.2 Installed in a horizontal position on a solid basement;

6.1.3 In an environment without any shock or vibration;

6.1.4 In a surrounding without any corroding agent;

6.1.5 Relative room humidity inferior to 65%.

6.2 Unpacking and Installation

6.2.1 Cut the packing belt on the packing box; take out the anti-shock cushion of the instrument and take

out the instrument and the accessories kit from packing box as well.

6.2.2 Place the instrument on the prepared solid working table; (see Fig 2)

Installation of the Hardness Tester

6.2.3 Take out the 4 horizontal Regulating Screws out of the accessories kit and screw them in the thread

holes on the base panel of the instrument.

6.2.4 Unpack the gauze band wrapped on the Up and Down Lead Screw and Hand Wheel.

6.2.5 Tear lightly the anti-shock sticking paper on the Indenter with both the hands. Clean the Indenter

lightly with the lens-cleaning paper wetted with a litt le ether on the Indenter several times by

holding the paper on both ends with hands.

6.2.6 Remove the dust-protecting cover of the eyepiece tube, take out the Micro Eyepiece from accessories

kit and insert it into the hole of eyepiece tube. And then insert the plug into the 5-pins socket on

the right side of the instrument.

6.2.7 Insert the axis of the Test Table into the hole on the Up and Down Lead Screw.

6.2.8 Take the level (the leveling gauge) out of the accessories kit and put it on the Test Table, and then

regulate the 4 horizontal Regulating Screws so as to make the water bubble stay in the center.

Æ90

Fig2

250

(45

0)

8


Introduction to the Operating Board(Fig 3)

Fig.3

STOP

START

PRT

L+

PRT

L-

1.START Key: Test force appl icat ion key. Auto sh i f t the

objectives and indenter. Load, dwell and unload the test

force automatically. Whole testing procedure is controlled

automatically.

2. STOP Key: Emergency stopping key. If find the test force

selected is wrong during the loading procedure, press this

key at once, the instrument will automatically stop loading

and restore to initial position.

A/B

CLR-F

CLR-D

A/B Key: Shifting Key. Shift between objectives and indenter when press this key.

CLR-F Key: Zero setting Key. The value of test force “F” will be set to zero when press this key.

CLR-D Key: Zero setting key. When press this key, the distance between two graduated lines

in micro eyepiece is set the zero.

1. L＋ Key: Enable luminosity of light source added. When press this key, it will sound “Toot”,

it means the luminosity is increasing. At this time, the value below “Light” at the last line in

main page (see Fig 4) will change from 10%~100%. When sound “Toot, toot, toot!”, it means

the luminosity is adjusted to the Max.

2. PRT Key：Print and send data to serial port key. Before print, press TAB-A key to open the

page, the printing content will as same as the page. The data will be sent to COM port of the

PC computer by means of RS232 interface. The details of Hyper Terminal Setting for the PC

computer; please see Section 10.

1. L－ Key: Enable luminosity of light source reduced. The usage method is as same as above

mentioned.

2. SAVE Key：Save the page. Press TAB-A key to open the page. When require to store the

page, press SAVE Key. At this time, the page will be formed as a file with auto compiled number,

then will be saved and return to main page. only can save Max 6 pages (00page ~ 05page).

When save 7th page, the first page will be overflowed automatically. 20 sets data can be stored

in each page. The data in saved pages will be cleared away after shut of the instrument.

9


TAB-A Key:

1 When No.≥1, Press this key to open the page displaying present hardness test data (see Fig 11).

The page is including:

No — Test Times

D — Average value of diagonal line length for indentation

HV— Hardness Value

2 If you need to save this page, press SAVE key. Press OK key to return to main page and

without saving present page. If require read the saved page, press Upper and Down Key to

turn over pages for read.

TAB-A

DELDEL Key: Delete Key: If think the measured D1/D2 value is not correct, press DEL key directly

to clear away the present test data and repeat test again.

OK

OK Key: When at main page (Fig 4), press OK key, the cursor will flash under the state mode

and waiting for change. Press OK key after changing, the cursor will disappear.

When at TAB-A page (Fig11), Press this key, it will not save present page and return to main

page.

F +

F -

“ ” Left Direction Key: Move the cursor flash at any item of state mode.

“ ” Right Direction Key: Move the cursor flash at any item of state mode.

1.“ ”Direction Key: When cursor flash at the place of state mode, press this key:

Time — Increase the value of year, month, day and hour, minute.

Change — Chose the hardness exchange scale larger.

Light — Increase the luminosity of light source in micro eyepiece

Dwell — Increase the dwell time, each pressing 5 seconds added.

Mode — Shift test method HV／HK

2．After press TAB-A key to open the page, press this key to turn to read the previous page.

3．F+ Key: Test force increasing key. Each pressing this key, one step of test force larger.

1. “ ” Direction Key: When cursor flash at the place of state mode, press this key, it has the

opposite functions of previous key.

2．After press TAB-A key to open the page, press this key to turn to read the next page.

3．F- Key: Test force reducing key. Each pressing this key, one step of test force smaller.

10


8.1 The power source of hardness tester must be connected to reliable grounding.

8.2 Turn on the power Switch of hardness tester. The Motorized Turret will rotate automatically and make

the 40x (or 20x)objective face to front direction of working position. The general amplification is 400x(or 200x).

At this time, the eyepiece, objectives and specimen are in the focusing state. The Screen light up and

display main page (Fig. 4)

Usage of the Hardness Tester

Measurement

0.0 HV

HRC

Mode Dwell Light Change Time

9.807 N HV 10S 70 % HRC YEAR

Loading

Loading

D1 : 0.00um

D2 : 0.00um

F: 0.000KG

2010/07/10-13:10:06N0. 03

Measure Diagonal Lines Length

Test time

Test Force

Test Method

Dwell Time

Track and DisplayTest Force

Date and TimeExchange

Scale

Fig.4

8.3 If require change the date, press OK Key. The cursor will flash at last grid of mode state. Press the upper

and down key to revise YEAR, Press right key and upper, down keys to revise Month, Day, Hour and Minute

in order. Press OK key to confirm.

8.4 If the test condition does not satisfy you, press OK key. At this time, the cursor will flash at last grid of

state mode, press left key to move the cursor to choose such item as hardness exchange scale (Change);

the luminosity of light source in micro eyepiece (Light); dwell time (Dwell); test method HV／HK(Mode).

After selection, press OK key, the cursor will disappear and the system will save the data chosen.

8.5 The test force selection: press OK key to make the cursor disappear. Press upper and down key to

choose the test force value.

8.6 Place the hardness test block or the specimen on the Test Table and then rotate the Hand Wheel to raise

the Test Table. Put one of the eyes close to the Eyepiece to observe. When the hardness test block or the

specimen comes into the following distance under the Objective:

about 6mm, when 10x Objective



11


8.7 After the focusing operation is finished, the distance between the tip of Indenter and the plane of specimen

is very small. When the irregular-shaped specimen is to be tested, take care not to damage the Indenter

wning to the touching of the indenter with the specimen.

8.8 The luminosity of the light source in the vision field can be regulated through pressing keys L+ or L- key

on the operating board.

8.9 Press the START key on the operating board, the hardness tester will enter into working state and the

Indenter will be shift automatically to working position.

8.9.1 Apply the test force automatically: the screen will display an arrow towards down, the screen is

tracking and displaying the value of test force “F”.

8.9.2 After the test force applying is completed, dwelling begins, and at this time, the dwell time (Dwell)

shows back-count of the time till to zero.

8.9.3 After dwel l t ime is up, the arrow displaying on the screen is towards up and the instrument

automatically unloads the test force.

1.Before the arrow disappears, please don' t touch any pressing key and component parts of

hardness tester, otherwise it will damage the hardness tester.

2.When power on the instrument and unloading arrow without disappear, the keys on operating

board will not work. It will wait for a while.

8.10 The Objective will auto shift to working position. The instrument is equipped up objectives with different

amplification in advance according to the size of test force. See Table below:

Model Test Force（N） Objective

HV-10AC

HV-30AC

HV-50AC

40x

10x

20x

10x

20x

10x

2.942~9.807(0.3~1Kgf)

19.61~98.07(2~10Kgf)

4.903~29.42(0.5~3Kgf)

49.03~294.2(5~30Kgf)

9.807~49.03(1~5Kgf)

98.07~490.3(10~50Kgf)

At this point, in the center of the vision field of the Eyepiece appears a bright spot, which shows it is very

close to the focusing plane. At this time, raise the Test Table up slowly until the hardness block or specimen

surface forms a clear image in the micro Eyepiece.

8.11 Before measuring the diagonal line of indentation, rotate the eye guard first to enable two graduated

lines clearly observed in eyepiece. (Fig.5)

12


8.13 Measure the diagonal line length of indentation.

8.13.1 Observe the indentation in the eyepiece; rotate the Hand Wheel to focus microscope again until

the image quality of indentation become clearly.

8.13.2 Rotate the Left Drum Wheel to enable the inner side of left graduated line tangent to the left tip of

the diagonal line of the indentation (Fig.7).

8.13.3Rotate the Right Drum Wheel to enable the inner side of right graduated line tangent to the right tip

of the diagonal line of the indentation (Fig.8).

8.13.4 Press the Input Button key on the Eyepiece. Confirm the D1 value on the screen.

8.13.5 Turn the Eyepiece clockwise 900, during the turning operations, the eyepiece should move tightly

along the inner side of the eyepiece tube without any space between

them; otherwise it would affect the correctness of the measurement.

Measure the other diagonal line length of indentation as same way

(Fig9, Fig10). Press the Input Button key to confirm the D2 value

on the screen. The system calculates hardness value automatically,

and the screen shows testing results (HV value) automatically as

well. One time test is finished, the Test Time “No” will display 1.

8.14 If the operator is not sure the correctness of the measured value, he can press the DEL key to clear

away present test data and repeat new test again.

8.15If require to observe a larger vision field range on the hardness test block or specimen, shift the

10x Objective to front direction of instrument. At this point, the total amplification is 100x.

Fig 9

+ +

Fig 10

The instrument has memory for setting the zero. It is necessary to reset the zero only when

the instrument is re-started after it is closed. When new operator comes, please set the zero,

so as to keep the accuracy for the measurement.

8.12 Rotate the Left Drum Wheel and Right Drum Wheel to enable inner side edges of two graduated lines

move closely without limit between them, the light slot between graduated lines become smaller and

smaller till reaching critical state with no light slot. Press CLR-D key to set Zero. (Fig.6)

The instrument has memory for setting the zero. It is necessary to reset the zero only when the

instrument is re-started after it is closed. When new operator comes, please set the zero, so as

to keep the accuracy for the measurement.

+ +

Fig 5 Fig 6

+

Fig 7 Fig 8

13


8.16 When the indentation observed in the eyepiece is too large or too small to measure precisely, i t is

necessary to re-select the test force or objective to enable the indentation suit the requirements of the

measurement.

8.17When Test Time N0≥1 and require to print, press TAB-A key to display the page (Fig11) first and then

press PRT key. All the page displaying is the content of print out. And the data can also be displayed on the

computer screen by mean of connecting with RS232 interface, through hyper terminal page of the computer.

Loading Mode Dwell Light Change Time

9.807N HV 10 S 70% HRC YEAR

MIN=0720.0 AV= 0721.8 MAX=0723.5 P=01

2010/07/10_13:55:5861 HRC NO. 03

No D(um) HV

01 50.67 0721.8

02 50.75 0720.0

03 50.62 0723.5

Min HV Value HV Average Max HV Value Page Number

14


Regulation and Precautions of the Hardness Tester

9.1The Diamond Indenter

9.1.1The diamond indenter and axis of indenter are very important parts of the instrument, and hence it

is necessary to take care not to collide the Indenter during the operation

9.1.2In order to assure the precision of the measurement, it is important to keep the Indenter clean. If it

is covered with grease or dust, it should be cleaned carefully with absorbent cotton dipped with alcohol

r industrial ether, especially the tip of the Indenter.

9.1.3The round column of the Indenter is marked with a red dot. If the

Indenter is once unloaded, take care to make the red dot face the

frontal direction when it is reloaded, and the focus of the diagonal

lines of the indentation should be aligned with the red dot. It is possible

to make the alignment of the cross-shaped line in the eyepiece with

the diagonal line of the indentation. If the indentation observed is not

aligned with the cross-shaped line, please unscrew the screw on the

indenter, turn the indenter a bit and the fasten the screw, and then

make the alignment again through tests until the alignment is all

right to your satisfaction (See Fig.12)

9.1.4It must take very care to regulate the position of indenter or

exchange the indenter. Because the indenter is equipped on the

pressure sensor, it will damage the pressure sensor easy by improper

operation of unloading or reloading the indenter. The precision of

the sensor wi l l not be repaired. The method of unloading and

reloading indenter is as follows (Fig.13):

Fig12

Fig13

Pressure Sensor

Screw

Indenter

A)Hold the part of sensor which equips the indenter with your hand. Loose the screw, unload or rotate

the indenter.

B)After fixed the indenter, it must hold the sensor with hand; then tighten the screw.

9.2 Micro Eyepiece

9.2.1Owing to the difference of the personal visions, the graduated lines observed in the vision field of

the eyepiece may seem vague. And accordingly, the observer should turn slightly the eye guard in front

of the Eyepiece according to his personal visional line so as to make the graduated line observed in the

vision field clear.

9.2.2Insert the Micro Eyepiece into eyepiece tube. When measure two diagonal lines’ length, it needs

to turn the Micro Eyepiece clockwise 900. During the turning operation, the Micro Eyepiece should move

tightly along the inner side of the eyepiece tube without any space between them; otherwise it would

affect the correctness of the measurement.

9.3 Cold Light Source for Lighting

9.3.1Due to Adopt cold light source for lighting in present instrument, the center position of light source

will directly affect the image quality of indentation. When assemble the instrument in the factory, the

center position of the light source has already been regulated, hence the user should not regulate it.

9.4 Specimen

9.4.1The surface of the specimen must be clean, as the grease or the dirt on the surface would make the

edge of the image of the indentation vague, thus affecting the precision of the measurement. Please clean

the specimen with alcohol or ether.

9.4.2When thin filaments, thin pieces and small parts are used as the specimens, the fine wire testing table,

thin specimen testing table and the fork-shaped testing table should be used to hold the specimens

respectively on the Testing Table for the measurement. If the specimen is too small to be held by the testing

table, the specimen should be inlayed and polished for the measurement.

9.4.3The Min. thickness of the specimen should be 10 times superior to the depth of the indentation. After

the test, the back of the specimen should not have any visible signs of deformation (Fig.14).

15


Fig14

Min Thickness of Specimen (mm)

Vic

ke

rs H

ard

ne

ss

Va

lue

(H

V)

16


The method to connect the hardness tester with the computer is as follows:

10.1 Take the RS232 communication cable out of the accessories kit and connect the hardness tester with

the computer (the computer must be power off). Insert the 9 core pin into the 9 core output socket of

the Hardness tester, and insert another 9 core pin into the interface of COM on the computer.

10.2 Turn on the computer and single pressing on the computer page

START PROCEDURE ACCESSORIES COMMUNICATION HYPER TERMINAL

10.3 Get out of the Dialogue Bracket of “Connecting Descriptions”. put in “AA” in the name column and press

the key “Confirm”. Get out the Dialogue Bracket connected and “Use (N) during the connection” In

the Dialogue and than press theBracket will be directly connected to the interface COM1(or COM2)

key Conform.

10.4 The Dialogue Bracket of “the Nature of COM1 (or COM 2)”, input the Potter relation (B) into “9600”,

and of AA Hyper

Terminal and preserve the dialogue AA.

the rest of the items remain the same. Press the Key”Confirm” to enter the page

10.5 When the operation platform of the computer is Windows 98, in the procedure there might be no Hyper

Terminal installed, and then single pressing in the page of the computer START SET

CONTROL THE PANEL BOARD ADD OR DELETE THE PROCEDURE INSTALL THE HYPER

TERMINAL.

10.6 After the hardness test is completed, the content printed out is the same with the display of the computer.

RS232 Hyper Terminal Setting

11.1 The repeatability table of displaying value for hardness tester

17


Appendix Table

11.2 Allowed Tolerance of Displaying Values for Hardness Tester, See Appendix Table 2

Appendix Table 1

Hardness Range of Standard Hardness Test Block

Repeatability of Displaying Values for Hardness Tester

HV5~HV100 HV0.2~＜HV5 ＜HV0.2

e

>225HV

≤6

≤4 ≤8 ≤10

≤12 ≤12

Appendix Table 2

Max. Allowed Tolerance for Hardness Tester ±%

Hardness Value HV

HV 0.01

HV 0.015 10

HV 0.02

HV 0.025 8 10

HV 0.05 6 8 9 10

HV 0.1 6 7 8 8 9 10 10 11

HV 0.2 4 6 8 9 10 11 11 12 12

HV 0.3 4

4 4 4

4 4 4 4 4

1. When diagonal line length is short than 0.020mm, the max tolerance value is not given in this table.

2. Regard to median value, its max allowed tolerance value can be calculated out by the interpolation method.

3. The value of micro hardness tester in the table is the max allowed tolerance calculated out according

to 0.001mm or 2% average value of diagonal line length of indentation, take the larger value as correct.

Hardness Scales

50 100 150 200 250 300 350 400 450 500 600 700 800 900 1000 1500

8

5

5 6 7 8 9 10 10 11 11

HV 0.5 3

3

3 3 3

3

3

3

3

2

2

2

3 3 4 4 4 4 4 5

3 3 3 3 3 4 4

3 3 3 3 3 3 3

3 3 3 3 3 3 3

3

3

3

2 2 2 2 2 2 2 2

2 2 2 2 2 2 2

2 2 2 2 2 2 2

2

2

3

3

3

3

3

3

3

3

3

3

3

3

3

5

5 5

5

5

5

5 6 6

6 6 6

6

7 7 8 8

8

9 11

HV 1

HV 2

HV 3

HV 5

HV 10

HV 20

HV 30

HV 50

HV 100

18


12.1The main instrument (including a micro Vickers Indenter, 10x, 40x, (or 20x) Objective, each for one pc )

12.2 The Accessories Kit

Accessories (The Packing List)

No. Standard Delivery Code# Quantity

1

2

3

4

5

6

7

8

9

10

11

12

13

14

10x Digital Micro Eyepiece

1 PC

1 PC

1 PC

1 PC

1 PC

1 PC

1 PC

1 PC

1 PC

1 PC

1 PC

1 PC

1 PC

1 Copy

150mm Flat anvil

V-shape anvil

Vickers Indenter

HV 1 Hardness Block

HV 10 Hardness Block

Objectives 10x

Objectives 20x

Mini-Printer

Power Cable

Accessories Box

Auti-dust cove

Level Screw

Instrument Manual

821-401

821-341

821-311

821-321

821-541

821-521

821-601

821-631

821-831

821-801

821-931

821-901

821-911

HV-30AC

DongGuan, China

Authorized Distributors:

R

sinowon vickers hardness tester hv-50ac serial operation manual en

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