Smart Sensor AR936 Operation Manual

SZ936-2009.10.16

Operation Manual of

Leeb Hardness Tester

Model AR936

555555

VV

A A

EE

Hl Hl

Portable Hardness Tester

Steel and cast steelSteel and cast steel

9

3

0

7

8

2

1

4

6

5

STORE

ENTER

9

3

DEL

0

DIR

7

AVE

8

HARD-

NESS

2

ESC

MAT’L

1

TIMES

4

MENU

6

5

special notice

Turn off the unit before replacement of battery impact device!

Content

rief

-----------------------------------------------( 9 )before operation

requirements on the measured -------------------------------( 9 ) system setting ------------------------------------------------(10) measuring condition setting ------ ---------------------------(10)

measuring method --------------------------------------------(10)

Working principle and Diagram of the instrument

4.O

peration

Working principle --------------------------------------------(05) Diagram of the instrument------------------------------------(06)

hardness tester -----------------------------------------------(06) Main unit ------------------------------------------------------(07) d type impact device ---------------------------------------- (07) irregular type impact device-------------------------------- (08)

3.Technical features

--------------------------------------------------------(04)features

application and its range -------------------------------------(04)

application----------------------------------------------------(04) application range -------------------------------------------- (04)

model specifications -----------------------------------------(05) operation condition------------------------------------------(05)

Starting ------------------------------------------- ------ -(10)----- Load ---------------- ------ ------------------------------ -------(10) Placement ------------------------------ ------------ (10) ---------- - Measuring - ------------ ----------------------------------------(10)

-01-

Maintenance and warranty

1D

Maintenance

put

Warranty

warranty

. o not the instrument under the following environment:

a. In risk of splash by water or highly intense dusy environment b. Air of high content of salt or sulfurate c. Air of othere chemical substance d. High humidity and temperature(above 60 90%RH) or in sunlight

2. Don't disassemble the instrument or change the inner struction

3. Alcohol and diluent is erosive to the LCD, clean the housing with cloth of slight water.

1. Refer to the terms in the card

2. Any damage res ulting from unauthorized dismantle of the unit, improper transport or storage in breach of the manual instruction as well as unauthorized amendment of guarantee card or lack of proof will lead to refusal of guarantee service.

D

a.

eclaration:

The battery used must be dealt with according to the local laws, rules and regulatoins. b. Our company reserve the right to upgrade and amend the specifications and design of the instrument and instructions, they are subject to change without further notification if any.

-28-

Other Items

-02-

-------------------------------------------(15)impact direction setting

average times setting -----------------------------------------------(15)

----------------------------------------- -- (15)material setting ---------

hardness setting ---------------------------------------------------- -(16) tolorence setting ---------- -------------------------------------- --- (16) hardness/intensity setting - ----------------------------------------- (16)

storage management --- ------------------------------------------ --(16)

review from first group to the last ------------- (17)-------------- ------ reviewing the selected ------- (17)-------------------------------- ------- data transmission ------- --------------------------------------- -----(17) deleting the selected ----------------------------------------- -------(17) delete all ----------------- ---------------------------------------- ----(17)

confirm of deletion -------------------------------------- ----------- (18) data review ------------- ------------------------------------------ -- -(18) system review ---------- ------------------------------------------- -- (19)

LCD brightness setting --------------------------------------- ------(19)

6.D

etails on operation

-------------------------------------------------------------- (12)turn on

turn off --------------------------------------------------------------(12) measurement -------------------------------------------------------(12)

main menu-----------------------------------------------------------(13) measuring operation------------------------------------------------(13)

buttons --------------------------------------------------------------(13) menu tree ------------------------------------------------------------(14) measuring condition setting ---------------------------------------(14)

pick up value --------------------------------------------------------(11)

turn off ----------- -------------------------------------------------- -- (11)

5.Special instruction

User notice

1 After purchase of this unit, the user is expected to fill in the guarantee card with unit stamp, then deliver its copy along with the invoice copy to our customer service center, or ask the distributor to do so. Incomplete proof will lead to maintenance without guarantee.

2 The instrument enjoys one year guarantee service since the purchase of the unit, in this period if there is any malfunction, against the guarantee card or invoice, contact our service center for free charge service. In case no guarantee card or invoice be presented our company will calculate the guarantee period since the date off factory.

3 Beyond the guarantee period, the maintenance will be charged by our service department.

4 The components like(irregular type , enlonged cable, specialized software etc.) will be charged accordingly.

optional impact device

5 Any damage resulting from unauthorized dismantle of the unit, improper transport or storage in breach of the manual instruction as well as unauthorized amendment of guarantee card or lack of proof will lead to refusal of guarantee service.

6 Please follow the manual instruction to operate, if there is any malfunction, contact our company immediately.

-27-

----------------------------------- (22)maintenance impact device -

instrument maitenance -- (22)--------------------------------------- - instrument check-------------------------------------------------(22) notice of storage and transport --------- - ------------------ ----- (22)

system calibration -- (20)-------------------------------------------- - program infomation - (20)----------------------------------- --------- Backlight ----- (21)--------------------------------------------------- - automatical turn off (21)--------------------------------------------- battery replacement (21) --------------------------------------------- connection of data cable (21) ----------------------------------------

7.Trouble shooting

8.U

pkeep and maintenance

A

ppendix

apeendix two - ---(24)-------------------------------------- ----------

appendix one -- - - (23)----------------------------------------- --- -- --

apeendix three - -- (25)----------------------------------------------- - apeendix four- - - -- (26)----------------------------------------- - -- --- notice for user - ------------- --------------------------------- --- (27)

-03-

maintenance and warranty-- --------------------------------- ---(28)

Appendix 4

-26-

time/date setting ---------------------------------------------------(20)

No

Model

Sketch of support ring

Remarks

for testing cylindrical outside surface

inner cylindrical surface

for testing cylindrical outside surface, radius adjustable R10-8

out cylindrical surface

inner cylindrical surface

out cylindrical surface

or testing spherical outside surface

for testing spherical inside surface

inner cylindrical surface

-04-

1 Brief

1.1Features

l Adopting Leeb hardness measuring principle, this unit can test the hardness of most metals.

l 160*80 lattice LCD display allows complete information and clear reading.Large l All display with menu indication makes the operation easy and convenient.English

l Alternative white backlight display and USB plug facilitate the opeation in darkness

and communication with PC for data exchange and configuration. l The is matchable with 7 striking fittings, capable of identifying the striking

type automatically, and requires no further calibration after replacement.

main unit

l The unit can store up to 500 groups of date( times 32~1), in which each group contains information of single value, average value, measuring date, direction, times, material and hardness unit.

impact

l With presetting of up and low limits, the unit alarm automatically if reading is beyond the limits, which facilitates massive measurement.

l Battery volume icon on LCD indicates the and calibratable with software.

battery power

l When using D/DC type for steel material hardness testing, the reading can be displayed directly without consultation of the table.

impact device

l Equipped with PC program, this software supports transmission of the measuring results, storage management, statistical analyzing, print and massive parameters setting to ensure higher quality and management.

l Professional and nice outline, smart, portable and reliable performace makes the unit operatable in rough environment, and immune from vibration, striking and elecmagnetic interference.

l 4 AA alkaline batteries support continuous operation for more than 50 hrs. and automatical turn off function.

l 150*80*38mmProduct Dimension

1.2 Application and range

1.2.1 Application

l Tooling cavity

l Bearing and other workpiece. l Pressure vessel, steam generator and its failure analysis. l Heavy workpiece. l Amounted machanism and permanent assembly. l Workpiece with small testing space. l Original record of testing results required. l Division of metal material warehouse. l Quick test for many locations on large workpiece.

1.2.2 Measuring range

see appendix one and two.

Appendix 3

impact device

DC(D)/DL

D+15

C G

E

impacting energy and mass of impact body

11mJ

5.5g/7.2g

11mJ

7.8g

2.7mJ

3.0g

90mJ

20.0g

11MJ

5.5g

ball hardness ball diameter ball material

1600HV 3mm carbonized tungsten

1600HV 3mm

1600HV 5mm

5000HV 3mm

Diameter of

length of

weitht

of

impact device impact device

impact device

20mm 86(147)/ 75mm 50g

20mm 162mm 80g

20mm 141mm 75g

30mm 254mm 250g

20mm 155mm 80g

max hardness of workpiece

940HV 940HV 1000HV

650HB

1200HV

Ra average roughness of workpiece

1.6 m 1.6 m 0.4 m 6.3 m 1.6 m

min weight of workpiec direct measure requires solid support and intense coupling

>5kg 2~5kg

0.05 2kg

>5kg 2~5kg

0.05~2kg

>1.5kg

0.5~1.5kg

0.02~0.5kg

>15kg 5~15kg

0.5~5kg

>5kg 2~5kg

0.05~2kg

min thickness of workpiece intense coupling min depth of rigidified layer

5mm

0.8mm

5mm

0.8mm

1mm

0.2mm

10mm

1.2mm

5mm

0.8mm

hardness 300 hv hour

indentation diameter indentation

depth

0.54mm 24 m

0.38mm 12 m

1.03mm 53 m

0.54mm 24 m

hardness 600 hv hour

0.54mm 17 m

0.32mm 8m

0.90mm 41 m

0.54mm 17 m

hardness 800 hv hour

0.35mm 10 m

0.35mm 7m

--

0.35mm 10 m

application range of impact device

DC type for hole or cylinder. DL type for long and narrow channel or hole D type for general peices test

D+15 type for measuring in grooves or recessed surfaces

C type for measuring light and small piece and surface hardened layer

G type for for measuring he avy and rough cast and forged pieces

E type for high hardness material

size of ball impress

-25-

impress diameter impress depth

Operation

Explanations

-05-

1.4 Operating condition

environment temp operating temp-20~+60 storage temp -30 ~+60 relative humidity 90% Do not use the instrument in strong vibration, magnetic field, erosive substance and high density powder and dust codictions.

2 Working principle and Diagram of the instrument

2.1 Working principle

An impact body with a spherical test tip made of

tungsten carbide is propelled against the sample surface by a spring force and then rebounds back. At a distance of 1mm from the sample surface, the impact and rebound velocity of the impact body, when passing through the coil in its coiler holder, induces in the coil and electric voltage proportional to the velocities fo the magnet. Leeb hardness as the follo wing formula:

1.3 Specifications:

appendix two

No

Material

Leeb hardness HLD

Intension 0 b (MPa)

1

C

350~522

374~780

2

C

500~710 737~1670

3

Cr

500~730 707~1829

4

CrV

500~750 704~1980

5

CrNi

500~750 763~2007

6

CrMo

500~738 721~1875

7

CrNiMo

540~738 844~1933

8

CrMnSi

500~750 755~1993

9

SSST

630~800 1180~2652

10

SST

500~710 703~1676

-24-

Name

Number

Remark

1

main unit

PCS

2

D type impact device

3

Standard leeb hardness block

PCS

4

A Nylon brush A

PCS

5

Support ring

PCS

6

AA alkaline battery

PCS

7

Manual

PCS

8

Alluminum box

PCS

9

software CD

PCS

10

USB cable

PCS

11

B Nylon brush B

For G type impact

device

12

Irregular type and support ring

impact device

See appendix 3 and 4

Standard packing

No

13

Leeb hardness testing method for metals.

GB/717394-1998

PCS

Operation

Explanations

optional accessory

HL=1000×VB/VA Hl leed hardness Vb rebound velocity

of the impact body VA impact velocity

of the impact body

Table 1

-06-

Voltage characteristic of output signal:

2.2

2.2.1 Hardness tester

Diagram of the instrument

HV HRC

127~ 364

HV

32~168

23.8~

85.5

40~173

13.5~

95.3

60~290

45~315

material

hardness unit

impact device

D/DC

D+15

C G

E DL

steel and cast steel

HRC

17.9~

68.5

19.3~

67.9

20.0~

69.5

22.4~

70.7

20.6~

68.2

HRB

59.6~

99.6

47.7~

99.9

37.0~

99.9

HRA

59.1~

85.8

61.7~

88.0

HB

127~ 651

80~638 80~683

90~646

83~663

81~646

HV

83~976 80~937

80~996

84~1042

80~950

HS

32.2~

99.5

33.3~

99.3

31.8~

102.1

35.8~

102.6

30.6~

96.8

steel

HB

143~ 650

CWT ST

HRC

20.4~

67.1

19.8~

68.2

20.7~

68.2

22.6~

70.2

HV

80~898

80~935

100~941

82~1009

Stainless steel

HRB

46.5~

101.7

HB

85~655

HV

85~802

GC. IRON

HRC HB

93~334 92~326

Nc IRON

HB

131~ 387

c. alum

HB

19~164

23~210

HRB

23.8~

84.6

22.7~

85.0

brass

HB

HRB

bronze

HB

copper

HB

Appendix Appendix one

-23-

Main unit

Impact device

Impact phase

time

Rebound Phase

Operation

Explanations

555555

V V

A A

EE

Hl Hl

Steel and cast steelSteel and cast steel

9

3

0

7

8

2

1

4

6

5

STORE

ENTER

9

3

DEL

0

DIR

7

AVE

8

HARDNESS

2

ESC

MAT’L

1

TIMES

4

MENU

6

5

-07-

2.2.2 Main unit

2.2.3 D type impact device

release button load

supporting ring

tube guide tube coil holder

connecting cable impact head

-22-

8.1 Impact device

l After operation for 1000~2000 times, clean pipe and with nylon brush. For cleaning the pipe, take out the body by unscrewing the support ring, screw the nylon brush anticlockwise into the pipe until the bottom then pull out, repeat this five times, then re-install the and support ring.

impact device impact device tube

impact device tube

l After operation release the impact device tube. l Forbid to use any lubricant for .impact device tube.

8.2 Instrument maintenance

l When checking with Rockwell hardness block and finding the error over 2HRC, it is recommendable to replace the head or resulting from ball wearing.impact device

l In case that there is any malfunction of the instrument, the user shall not dismantle or replace any component of the instrument, please fill in the guarantee card and return the unit to our maitance department.

9. Instrument checkup

The checkup period shall not be more than one year, the users can decide its regular checkup period at their convenience.

10. Storage and transport

l Keep the unit from the vibration, high magnetic field and erosive substance, humid zone and dusty room in normal temperature.

away

l Keep the original package, the instrument can be transported on 3 level road.

µç³ØÃÅ

LCD display

Keypad

Impact device socket

rear cabinet

battery door

Vibration-proof suit

USB socket

Battery

back sidefront side

µç³ØÃÅµç³ØÃÅ

8. Maintenance and warracnty

Operation

Explanations

-08-

2.2.4 Irregular impact device

3.Technical features

lSee table 2 for and reading repeatibilitytolorence

No

impact device

hardness of the block

tolorence of the reading

reading repeatibility

1

D

760 30HLD 530 40HLD

6 HLD 10 HLD

2

DC

760 30HLDC 530 40HLDC

6 HLDC 10 HLDC

6 HLD 10 HLD

3

DL

878 30HLDL 736 40HLDL

12 HLDL

4

D+15

766 30HLD+15 544 40HLD+15

12 HLD+15

5

G

590 40HLG 500 40HLG

12 HLG

6

E

725 30HLE 508 40HLE

12 HLE

7

C

822 30HLC 590 40HLC

12 HLC

l Measuring range HLD 170~960 HLD l Measuring direction: vertical down, side down, horizontal, side up and vertical down

-21-

6.11 Backlight

The white backlight facilitates operation in darkness, pressing button to turn on/off the light in main menu interface.

6.12 Auto turn off

lThe function is to save the energy lIf no further operation within 5 min the instrument will turn off automatically

lThe battery icon will be blank if there is low battery

6.13 Battery replacement

After long time operation, the battery icon becomes faded, the more black part the more battery volume; after exhaustion of the battery, the batter icon shows ,this means to replace the battery immediately.

Refer the following figure to install the battery:

6.14 Data transmission cable connection

Plug one end of the cable into the USB socket at the left of the host while the other end into PC's USB socket.

7. Trouble shooting

Problem

Analysis

Action

Fail to turn on

Exhaustion of battery Replace battery

Wrong polarity connection

Connect the battery in proper polarity

Blur reading

Low battery Replace battery

Replace the batteries as follow steps:

the unitlturn off lTake off the vibration-proof glove on the instrument, and open the battery door and take out the old batteries. lInsert the 4 fresh batteries with correct polarity, then close the battery door and take on the glove. lTurn on the instrument to check if it works properly. lPay attention to the polarity of the batteries, otherwise it may damage the instrument.

battery door

Battery

µç³ØÃÅ

--

++

--

++

-- ++

positive polarity

negative polarity

l Material: steel & cast-steel, alloy tool steel, stainless steel, gray cast iron, nodular cast iron, cast alluminum alloy, copper -zinc alloy,copper-tin alloy, pure copper, and forged steel.

Operation

Explanations

Table 2

l Hardness unit ( HL) HB HRB HRC HRA HV HS

l Display 160*80 lattice LCD display l storage up to 500 groups ( times:32~1)Data impact l Operating voltage 6V l Continuous operating time 50hrs without backlight.

4 Instrument operation:

4.1 Before operation

4.1.1 Requirements of the measured.

The surface of the measured must meet the requirements contained in table 3.

l The surface of the measured must be no more than 120 . l The roughness can not be too high, otherwise errors may be occurred. The measured

surface must be polished and blare as smooth and flat as possible without oil smear. l Weight of the measured: for the measured of more than 5kg, there is no need to

support; for that of 2~5kg or of thin walls construction, a support must be applied while operating to avoid distortion, warpage and movement; for middle scale workpiece, it must be placed in balance on a flat and concrete surface without any vibration or moving.

l Curve surface workpiece: the testing surface should be The small supporting ring or irrregular type supporting ring shall be used for testing the workpiece which has its curvature radius less than30mm(forD, DC, D+15, C, E and DL type

) and bigger than 50mm(G type ).

as flat.

impact

device impact device

-09-

-20-

6.8.2 Time / date setting

Current time/date displays on the LCD in format of month/date/year hr/min.

Press number buttons to input the number, the cursor will move from left to right repeatedly.

Press ENTER button to complete the setting. Press ESC button to cancel the change.

6.9 System calibration

First operation, or use after a long time, the instrument and the must be calibrated with the provided leeb hardness block. When several are provided with , every only need one calibration, and no need to re-calibrate when replacing . Press menu to enter into system calibration submenu.

impact device

impact devices

main unit impact device

impact device

1 1 0/05/2005 11:02

time / date setting

After testing, averages display. Press [ ] [ ]to input real value. Press ENTER button to complete the calibration. Press ESC button to exit the operation. Calibraton range: 15hl.

system calibration

times

testing 5 times

Software Calibration

Average = 780

Real Value=

77

8800

6.10 software info

press menu to enter into main menu

This interface shows the info about the instrument and the plug-in software The software version no and plug-in software indentifier is subject to change without further notification.

Storage Manager

system calibration system calibration

version No:AR936 B01

indentifier AR963BETA01 SN: 93600000

Setting the direction asimpact

With leeb hardness block, test 5 locatons in direction of vertical downward.

System Configuration

l The workpiece must be of enough thickness, for the thickness please see the appendix table 3.

minimum

l For the workpiece of rigid surface, the surface must comply with the requirements prescribed in the appendix table 3.

l Coupling: for the light workpiece, it must be coupled with the solid supporting body, the two coupling surface must be flat and smooth without too much coupling agent applied. The testing direction must be vertical to the coupling surface. For the workpiece of large area, long stem shape, or crook shape, even its weight and thichness are enough, it is still possible to find the distortion and unbalance which

Press [ ] [ ] to move the cursor to software Info. Press ENTER button to enter into software info.

Operation

Explanations

-10-

4.1.2 Instrument system setting: see 6.8 for details.

4.1.3 Measuring condition setting: see 6.5 for details.

4.2 Measuring method:

l Calibrate the unit with the provided hardness block before operation,and its and repeatibility shall be in line with the table 2.

tolorance

4.2.1 Starting

l Plug the head in the socket at the middle of the unit.impact l Press [ ] button to turn on the unie.

4.2.2 Loading( figure1)

l Push down the load to lock the body; for DC type the load stem on the surface of the workpiece; for DC insert the stem until stop for loading process.

tube impact impact device,

adsourb impact device,

4.2.3 Placement ( figure2)

Clamp the striking support ring against the the surface of the workpiece in the selected direction vertically.

-19-

6.8 System configuration

Press menu to enter into main menu

Press [ ] [ ] to point the cursor to the System configuration

Press ENTER button to enter into the menu.

Auto storage Eliminate the big error Auto data transmission]

[Button sound][Alarming sound]can be turned on/off by pressing the confirm button

l Auto storage: setting on will auto store the current group data after giving average reading.

l Eliminate the big error: setting on will auto eliminate the big error bounding the 3 regulations after the advance ending of complete measurement by pressing average button. If a data is eliminated, new data shall be supplemented to reach the times preset.

l Auto data transmission: setting on will output the current data through USB interface in text format after average reading is given.

l Button sound: setting on makes the buzzer beeps once at every button operation. l Alarm sound: setting on makes the buzzer beeps once for a long time when the

measurement is beyond the allowance limits.

storage manager

system configurtionsystem configurtion

measuring condition setting

auto storage off eliminate the big error off auto data transmission off button sound on alarming sound on LCD brightness setting time/date setting

6.8.1 LCD brightness setting

LCD brightness setting

press [ ] to increase the brightness press [ ] to decrease the brightness

Press [ ] to increase the brightness Press [ ] to decrease the brightness

Press ENTER button to complete the setting. Press ESC button to cancel the change

figure 1 2figure 3figure

4.2.4 Measurement( figure3)

l Press the release button at the top of the device to measure while the workpiece, device and operator must stand steadily and the force should be in line with the axis of device.

impact

impact impact

impact

l Normally test 5 times for each location of the workpiece. The max difference between these results should not be 15HLwithin

Note:

test the block in direction of vertical down for 5 times with the demarcated Leeb tester, and take the arithmetic average as the hardness value of the block. If the value is beyond the limit, use system calibration function to calibrate the unit.

lead to incorrect measuring, so reinforcing or supporting at the back of the workpiece is necessary.

Press [ ] [ ] to move the cursor to the desired. Press ENTER button to change or enter into the

change interface. Press ESC button to exit

Operation

Explanations

-11-

impact device

distance between center of the 2 impress

the distance between the center and edge of workpiece

DDC

3

5

DL

3

5

D+15

3

5

G

4

8

E

3

5

C

2 4

table 3

4.2.5 Read the value

l Take the average of readings from many valid testing locations as a Leeb hardness data.

l Before the Leeb hardness signal HL is the hardness reading. After that is the type of striking fitting type. For example, 780HLD means the tested hardness is 780 with type D impact device.

l For conversion from Leeb reading, a corresponding hardness singal shall be placed after the reading, for example, 420HVHLD means the Vicker reading is 420 with the type D impact device.

Note: The different impact device wiill have the different hl value reading, for example:

4.2.6 Turn off

-18-

are you sure to delelte?

YesYes

No No

6.6.6 Confirm delete

6.7 Data review

No. 001 12/03 652HL No. 002 12/03 587HL No. 003 12/03 820HL No. 004 12/03 693HL No. 005 12/03 783HL No. 006 12/03 782HL No. 007 12/03 579HL No. 008 12/03 687HL

No. 001 12/03 514HL

No. 002 12/03 785HL No. 003 12/03 516HL No. 004 12/03 789HL No. 005 12/03 570HL No. 006 12/03 852HL No. 007 12/03 523HL No. 008 12/03 796HL

Every LCD page displays up to 8 groups of

numbers, date and averages Press [ ] [ ] to page up/down Press ESC button to exit review Press ENTER button to call cursor for further review.

A confirm interface appears when delete the data stored.

Press [ ] [ ] to move the cursor to Yes and press

ENTER button to delete the data.

Press [ ] [ ] move the cursor to No and press

ENTER button to cancel the delete. Regardless the cursor position. Press ESC button also lead to delete cancellation.

Press [ ] [ ] to select the group displayed. Press ESC button to exit review Press ENTER button to call cursor for further review

511 513 516 514 515 Max: 516 Min: 511

Number 001 12/03/02 average= 514HL D 05 times steel and cast steel

press “ “ button to turn off.

5 Special instruction:

l Replacement of battery must be performed after turn off the unit, otherwise,the can not be identified and damage the unit.

impact device

impact device might

l Any distance between impresses and the distance between the center and the edge of the workpiece shall be in line with the regulation of table 3.

l For specific material, a comparison test must be performed to get a conversion map if you want to change the Leeb reading into other hardness value. This method is that using properly calibrated Leeb tester and the desired tester to test on the same workpiece at 3 locations nearby the target location and get 5 groups of the Leeb readings. Then take the average of these readings and these from another tester to make a conversion curve which at least must involve 3 pairs of sampling readings.

l The magnetism of the workpiece shall not be more than 15 gauss.

6.6.5 Delete all

Delete All will delete all the data stored in memory.

Press [ ] [ ] to page up/down and review the averages, measuring conditions and single readings.

Operation

Explanations

-12-

Leeb hardness tester

impact device

DD

The instrument will check the and show on the LCD, check if the display is right or not, then the unit enters into the main menu display.

impact device

6.3 Measurement

After turn on, the unit enters into the main menu as shown below:

-17-

6.6.1 Review from the first group/review from the last group

The former displays the data stored from the first goup

The later displays the data stored fromt the last group

6.6.2 Review from the selected group

lReview From the Selected Group will

display the start group interface lPress number buttons to input the number lPress ENTER button to confirm the choice lPress ESC button to cancel the change

6.6.3 Data transmission

Data Transmission will transmit the data in text from USB interface.

Select the start group from

001 to 010

0 0 01

6.6.4 Delete the selected group

lDelete Selected Group will show the the

interface of the selected group to be deleted

lPress the number button to input the number

lPress ENTER button to confirm the choice

lPress ESC button to cancel the change

Note:

1. If the group number is beyond the existed, all the existed groups will be deleted

2. There is no differnce to input the first group number or final group number, ex, delete 1 to 5 equals delete 5 to 1

3. After deletion, the number of the stored group will be re-numbered

4. In deleting, especially for single group delete, for re-number the existing stored data, more 30 seconds is required, the instrument shall not be turned off to avoid messing up the data.

selectable group from

001 to 017

0001

To

001

Press the [ ] [ ] to move the cursor to the desired function

Press ENTER button to confirm the choice.

review from the first group review form the last group review from the selected group data transmission delete the selected group delete all

AVE

784

HL

CWT ST

04

COUNTCOUNT

material

reading

average

hardness unit

battery

impact

direction

impact

times

lNormally, the reading cannot be stored if the times is less than the preset value. If you want to store the current reading, press the Average button to end the measurement and store the value.

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lThis performance of advance end of measurement by pressing Average button disable the functions of automatical storage and automatical transmission in the system munu.

lOnly D type and DC type enable the intension testing function, if other are used the hardness/intension settings cannot be changed. In case that if chage the setting as Intension with D/DC , then change the with others, the Hardness/Intension setting will be changed into Hardness automatically.

impact device

impact devices

impact devices impact

devices

lIf the setting is Intension, the hardness unit reset cannot be performed. lNot all the material hardness can be converted into others, if the material is changed the

tester will be restored into Leeb hardness unit automatically. So material setting msut be done before the hardness unit setting in process of condition setting.

6 Details of instrument operation

6.1 turn on: press[ ] to turn on as shown below:

6.2 In any case, press [ ] to turn off the unit.again

Operation

Explanations

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6.3.1 Main menu instruction

Battery: shows the residual battery volume. direction: current direction Average: when the preset times is reached, the average value shows. Hardness unit: current unit Reading: current single testing reading(without average alert), current average(with

average alert). denotes value above convertable or measure range, denotes value below the

convertable or measure range. Material: current material seting. times: shows the times done with preset via Times button. Times gives the info of the times and Single review gives the single readings with is times of a single reading.

6.3.2 Measuring operation

At this interface, each testing will be displayed, and the times added with 1, if the reading is beyond the , the buzzer gives a long beep; when preset times is reached the buzzer 2 short beeps, then the average shows after 2 seconds with the buzzer gives a short beep.

6.3.3 Button operation

l Press STORE button to store the current group reading, after the average is given. The data can only be store once. l Press DEL button to delete the last single reading, before the confirmation of the following dialogue:

Impact

impact

Impact impact

impact

tolerance

are you sure to delete?

yes yes

nono

l Press AVE button to end the measurement advancely before the preset times and shows the average.

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l Press[ ]to turn on / off the backlight(this functions only in the main menu interface) l Press MENU button to enter into main menu

l Quick set button

l Press the DIR button to set the direction. l Press the TIMES button to change the times set, first press will display the

current the times set, each press add 1 until 32, then go back to the 1.

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l Press[ ] [ ] button to review the single readings, and press the Esc to restore the average or last reading display, press the [ ] or [ ] can review the info in order.

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6.5.4 Hardness unit setting

mild steel high carbon steel chrome steel

current material hardness unit

HV HB HRC

HS HRB HRA

HL HL

6.5.5 limit settingTolerance

6.5.6 Hardness/intension setting

Press the [ ] [ ] to move the cursor to the desired material

Press ENTER button to confirm the choice Press ESC button to cancel the change

Press [ ] [ ] or [ ] [ ] to move the cursor to the desired unit Press ENTER button to confirm the choice Press ESC button to cancel the change Note:

1. Only the hardness unit available for convert with suitable and material, for others this cannot be displayed.

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2. Select material before hardness unit setting

3. After material setting, the hardness unit will be restored to HL automatically.

Press the Number button to input the number and the cursor will move repeatedly from left to right. Press confirm to confirm the choice Press Esc to cancel the change Note:

1. If the setting is beyond the range, the instrument will alert you to reset.

2. If the low limit is bigger than the top limit, the instrument will reverse the setting.

Press Confirm to select hardness/intension, the cursor shifts between the hardness and intension Note: 1. only D/DC are capable of intension measurement, for the others this chocie is Hardness only.

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tolerance limit

low limit top limit

0 0 200 0890

material hardness unit tolerance limit hardness/ intension

hardnesshardness

Press [ ][ ] to move the cursor to Storage manage Press ENTER button to enter into storage manage menu. If there is no data stored, “ NO DATA ” shows.

measuring condition setting

storage manage storage manage

By pressing the [ ] [ ] button to move the cursor to Yes and click the Confirm button to confirm the delete of last single reading. By pressing the [ ] [ ] button to No and click the ENTER button to cancel the delete. Regardless the cursor position, pressing the

ESC button can also cancel the delete

operation.

6.6 Storage manage Press the Menu to enter into main menu

Operation

Explanations

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l Press MAT L button will change the material seting, each press will cycle the materials preset in the instrument, and put the hardness as Leeb unit. So it is necessary to set material before hardness set. Note: The so called conversion means that based on the massive tests for Leeb hardness and other hardness, a corresponding map is set up, and adopting this map the tester calculates and converts the Leeb hardness into other units.

6.4 Menu tree

All the instrument parameters's configuration and added functions can be performed

with menu opertion, press the Menu button to enter into the main menu interface.

main menu interface

measuring condition setting storage manager system setting system calibration program info

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tolerance

direction average times material hardness unit

hardness/intension:hardness

review from first group review from the last group review from the selected group data transmission(preserved) delete the selected group delete all

automatic storage: off eliminate the max error:off auto data transmission:off button sound: on alarm sound: on LCD brightness setting time/date setting

6.5 measuring condition setting

Press Menu button to enter into main menu interface.

measuring condition settingmeasuring condition setting

storage manager

system configuration

l Press ENTER button to enter into measuring condition setting menu.

l Press [ ] to review upward.

l Press [ ] to review downward.

Press [ ] [ ] button to move the cursor to the desired condition and press ENTER button to confirm choice.

Note: 1. If the hardness/intension is set as intension, hardness cannot be selected, the cursor jump over the Hardness unit choice.

Only D/DC are available to intension measuring, when using other , the cursor is not able to be moved to the Hardness/ Intension choice.

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6.5.1 direction settingimpact

6.5.2 Average times setting

Available to select from 1 to 32. Press the Number button to input the number

and the cursor will move repeatedly from left to right.

Press ENTER button to complete the change. Press ESC button to cancel the change.

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tolerance

direction average times material hardness unit

hardness / intension : hardness

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Press [ ] [ ] to move the cursor to the desired direction setting.impact

Press the ENTER button to confirm the choice.

Press the ESC button to cancel the change.

average times

0 0

3

6.5.3 Material setting

If the Hardness/Intension is set as hardness, the following materials will show on LCD steel & cast-steel, alloy tool steel, stainless steel, gray cast iron, nodular cast iron, cast

aluminium alloy, copper-zinc alloy, copper-tin alloy, pure copper, forged steel

Press the ENTER button to confirm the choice Press the ESC button to cancel the change

Note: After material reset, the hardness unit will automatically restore itself to HL

2. Before selecting hardness unit, set the material.

copper/zinc alloy copper/zinc alloy

copper-tin alloy

pure copper forged steel

If the Hardness/Intension is set as Intension, the following selectable material shows: Mild steel, high carbon steel, chrome steel, chrome/vanadium steel, chrome/nickle steel, chrome/molybdenum steel, chrome/nickle/molybdenum steel, chromansil,super high intension steel and stainless steel.

Press the [ ] [ ] to move the cursor to the desired material.

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l Press the HARDNESS button to set the hardness unit, each press change the unit of the hardness, if the current set is intension it will go as Leeb hardness.

Operation

Explanations