INTEGRATED HARDNESS TESTER
TH170
Instruction Manual
TIME Group Inc.
CONTENTS
1 Introduction…………………………………………………………..…………… 1
1.1 Features……………………………………………….………….……..…..…… 1
1.2 Main application and testing range…………………………….…..………..… 1
1.3 Specification..……………………………………………….……….………...… 2
1.4 Working condition……………………………………………….….…...……… 3
2 Structure feature & testing principle………………………..….….……………. 4
2.1 Structure feature…………………………………………………..……..…...… 4
2.2 Testing principle……………………………………………………..…..……… 5
3 Specialties…………………..………………….……………….……..…………… 5
3.1 Specifications………………………………………………….…….……..….… 6
3.2 Dimension and weight……………………………………………..…………..…7
4 Using……………………..………………………………….………..……………. 7
4.1 Preparation before using…………………………………………..…………… 7
4.2 Testing…………………………………………………………………..…..…… 8
5 Special prompt……………………...…………………….……………..……...… 9
6 Operation explain in details………………………………….….……..………… 9
6.1 Switch on…………………………………………….………….……..…....…… 9
6.2 Measuring operation……………………………………………..……….…… 10
6.3 Key-press operation……………………………………………….………...… 10
6.4 Switch off……………………………………………….……………...….…… 10
6.5 Menu structure…………………………………………...……..……..……… 10
6.6 Common function………………………………………………..……..……… 12
6.7 Memory manager………………………………………………..……..……… 13
6.8 Test setting…………………………………………………………..…….....… 14
6.9 System setting……………………………………………………………….…. 17
6.10 Software……………………………………………………………..…………18
6.11 Software calibration……………………………………….………..…………18
6.12 Battery replacement…………………………………….….……….…………19
6.13 Backlight………………………………………………………..….…………..20
6.14 Auto Power Off…………………………………………………….………….20
6.15 Connection of data transmission cable……………….………………………20
7 Maintenance and repair…………………………….…………………………… 20
7.1 Impact device………………………………………….……………..………… 20
7.2 Repair………………………………………………………....………...……… 20
8 Inspection periods………………...…………………..……….………………… 20
9 Notice for uses……………………...……………………………..….…..…….… 20
10 Notice of transportation and storage………………………..……………………21
1 Introduction
1.1 Features
z
z
z
z
z
z
z
z
z
z
LCD display 128×32 dot matrix;
USB communication interface;
Impact direction automatically identifying;
Memory 270 average data in 9 files ;
Upper and lower limit pre-setting;
Battery capacity display and power off automatically lack of voltage;
Backlight for convenient use in darkness;
Software calibration;
AAA 1.5V(7#)battery 2 pc;
Computer software available.
1.2 Main application and testing range
1.2.1 Main application
z The installed machinery and permanently assembled parts;
z Die cavity of moulds;
z Heavy and large work piece;
z Failure analysis of pressure vessel, steam turboset and other equipment;
z Narrow space workpiece;
z
z
z
z
Axletree and other spare parts;
Material identification of the metal material warehouse;
Quick inspection for large workpiece;
Others.
1.2.2 Testing range
See table 1.
Table 1
Material
Hardness scale
Application range
HRC
20.0~68.4
HRB
38.4~99.8
HB
81~654
HV
81~955
HS
32.5~99.5
HRC
20.4~67.1
HV
80~898
HRB
46.5~101.7
HB
85~655
HV
85~802
Grey Cast Iron
HB
93~334
Nodular Cast Iron
HB
131~387
HB
19~164
HRB
23.8~84.6
HB
40~173
HRB
13.5~95.3
Copper-Aluminum Alloys
HB
60~290
Wrought Copper
HB
45~315
Steel and Cast Steel
Cold Work Tool Steel
Stainless Steel
Cast Aluminum Alloys
Copper-Zinc Alloys
1.3 Specification
1.3.1 Standard delivery
TH170 Main Unit
AAA 1.5V(7#) battery
Small supporting ring
Cleaning brush
Hardness test block(760±30HLD)
USB communication cable
Driving disk for computer
1.3.2 Optional parts
DataView for TH170;
Supporting rings,see table 2.
1
2
1
1
1
1
1
Table 2
No.
1
Code
03-03.7
Model
Z10-15
Sketch
Remarks
For testing cylindrical outside
surface R10-R15
2
03-03.8
Z14.5-30
For testing cylindrical outside
surface R14.5-R30
3
03-03.9
Z25-50
For testing cylindrical outside
surface R25-R50
4
03-03.10
HZ11-13
For testing cylindrical inside
surface R11-R13
5
03-03.11
HZ12.5-17
For testing cylindrical inside
surface R12.5-R17
6
03-03.12
HZ16.5-30
For testing cylindrical inside
surface R16.5-R30
For
7
03-03.13
testing spherical outside
K10-15
surface SR10-SR15
For
8
03-03.14
testing spherical outside
K14.5-30
surface SR14.5-SR30
9
03-03.15
HK11-13
For
testing
spherical
inside
surface SR11-SR13
10
03-03.16
HK12.5-17
For
testing
spherical
inside
surface SR12.5-SR17
11
03-03.17
HK16.5-30
For
testing
spherical
surface SR16.5-SR30
inside
For testing cylindrical outside
12
03-03.18
UN
Surface , radius adjustable
R10~∞
1.4 Working condition
Environmental temperature:0℃~40℃;
Relative humidity: ≤90 %;
The surrounding environment should be no vibration, strong magnetic field, corrosive
medium and heavy dust.
2 Structure feature & testing principle
2.1 Structure feature
Structure feature see figure 1.
Hardness Tester TH170
TIME Group Inc.
USB
HARDNESS TESTER
MODLE
TH170
BATTERY
AAA 1.5V X 2
GROUP INC.
HARDNESS TESTER
MODLE
TH170
BATTERY
AAA 1.5V X 2
GROUP INC.
Figure 1
2.2 Working principle
The basic principle is: The impact object of certain weight pounds at the testing surface under
certain test force. Measure the impacting velocity and the rebounding velocity of the impact object
respectively when it is 1mm above the testing surface. The calculation formula is as followed:
HL=1000×VB/ VA
Where, HL--Leeb hardness value
VB-- Rebounding velocity of the impact object
VA --Impacting velocity of the impact object
3 Specialties
3.1 Specifications
3.1.1Impact Device:D;
3.1.2 Features of Impact Device and testing demand see table 3,indentation dimension of test tip
see table 4;
Table 3
Parameter
Impact energy
Impact object weight
Hardness of test tip
Diameter of test tip
Material of test tip
Max. hardness of workpiece
Roughness of workpiece Ra
Min. weight of workpiece
Test directly
Need stable support
Need couplant
Min thickness of workpiece
Test directly
Need couplant
Min. depth of harden surface
Hardness
(HV)
300
600
800
Value
11mJ
5.5g
≥1600HV
3mm
Tungsten Carbide
940HV
≤1.6μm
>5kg
2~5kg
0.05~2kg
>5mm
≤5mm
0.8mm
Table 4
Parameter
Indentation diameter
Indentation depth
Indentation diameter
Indentation depth
Indentation diameter
Indentation depth
Value(mm)
0.54
0.024
0.54
0.017
0.35
0.010
3.1.3 Accuracy and repeatability of displayed value see table 5.
Table 5
Hardness value of Leeb
standard test block
Error of
Repeatability of
displayed value displayed value
760±30HLD
±6 HLD
10 HLD
530±40HLD
±10 HLD
10 HLD
3.1.4 Measuring range:170~960HLD;
3.1.5 Measuring direction:360°;
3.1.6 Scales:HL、HB、HRB、HRC、HV、HS;
3.1.7 Display:128×32 dot matrix LCD;
3.1.8 Data memory:270 average data in 9 files;
3.1.9 Upper and lower limit setting:same to measuring range;
3.1.10 Power:AAA(7#)1.5V 2pc;
3.1.11 Continual working time :about 150 hours(without backlight);
3.1.12 Communication interface:USB2.0.
3.2 Dimension and weight
3.2.1 Dimension:155mm×55mm×25mm
3.2.2 Weight: about 166g.
4 Using
4.1 Preparation before using
4.1.1Preparation for sample surface
Preparation for sample surface should conform to the relative requirement in figure 3.
●In the preparation process for sample surface, the hardness effect of being heated or cold
processing on the surface of sample should be avoided;
●Too big roughness of the measured surface could cause measure error. So, the measured surface
must be metallic luster, smoothing and polish, without oil stain;
●Curved surface: The best testing surface of sample is flat. When the curvature radius R of the
surface to be tested is smaller than 30mm,the small support ring or the shaped support rings
should be chosen, see figure 2.
Figure 2
●Support of test sample
Support is not necessary for heavy sample.
Medium-weight parts must be set on the smoothing and stable plane. The sample must set
absolutely equability and without any wobble.
●The sample should have enough thickness, minimum thickness of sample should conform to
table 3.
●For the sample with hardened layer on surface, the depth of hardened layer should conform to
table 3.
●Coupling
Light-weight sample must be firmly coupled with a heavy base plate. Both coupled surfaces must
be flat and smooth. And there should be no redundant coupling agent exists. The impact direction
must be vertical to the coupled surface.
●When the sample is a big plate, long rod or bending piece, it can be deformed and become
unstable, even though its weight and thickness is big enough, and accordingly, the test value may
not be accurate. So should be reinforced or supported at its back.
●Magnetism of the sample itself should be avoided.
4.1.2 Preset test parameters
See 6.8.
4.2 Testing
z The instrument can be calibrated with standard test block, the accuracy and repeatability
displayed should be within the regulation of table 5.
4.2.1 Loading
z Put the supporting ring onto the surface of workpiece,hold the concave area by left
hand,and press down the body by right hand while holding the loading key;
z Impact direction should be vertical to tested surface.
4.2.2 Testing
z Press release button at top of the main unit to test. The sample and the main unit as well
as the operator are all required being stable;
z Usually, test 5 times on each measure area of sample. The data dispersion should not be
more than mean value±15HL;
z The distance between any two indentations or from the center of any indentation to the
edge of tested sample should conform to the regulation of table 6;
Table 6
Distance between any two indentations
(mm)
Indentation to the edge of tested sample
(mm)
≥3
≥5
z For special material, if accurate conversion from the Leeb hardness into other
hardness method is wanted, contrastive test must be done to get conversion relations. Use
inspected qualified Leeb hardness tester and corresponding other hardness tester to test at
same sample respectively. For each hardness value, measure 5 Leeb hardness values. using
Leeb hardness arithmetic average value and corresponding hardness method average value
as correlative value to make individual hardness contrastive curve,see figure 3.
A1
A2
A3
A4
A1-A5: Hardness samples
“ ”: Impress of hardness scales to be converted
“ ”: Impress of HL hardness scales
Figure 3
4.2.3 Testing result
z In front of Leeb hardness symbol HL, expresses the hardness value; behind HL
expresses type of impact device. For example: 700HLD expresses using D type of impact device
measured Leeb hardness value is 700;
z For other hardness method converted from Leeb hardness, put the symbol of
corresponding hardness method in front of Leeb hardness symbol. For example: 400HVHLD
expresses using D type of impact device measured Leeb hardness value converted Vickers
hardness value is 400.
5 Special prompt
z In normal condition, it could not memory present testing value while not reaching
impact times which has been set. If want to memory, press 【Cal. Average】 at the main display
interface to end the testing in advance and then memory;
z When using the function of 【Cal. Average】 to end the testing in advance, the function
of 【Auto Save】
、【Auto Trans.】etc. will not work;
z Not all hardness methods can be converted to each other for all materials(See table 1).
The setting of hardness scale will recover to HL automatically after material setting is changed. So
select 【Material】first then select 【Hardness Scale】 when setting measure condition.
6 Operation explain in details
6.1 Switch on
Press
to switch on,the screen will show as follows in 2 seconds:
TH170
TIME Group Inc.
A5
Then it enters the main display interface,see figure 4.
Measured
value
Over
alarm
Impact times
Battery info.
tolerance
Lower tolerance
alarm
Impact
direction
Average
indicator
value
Hardness
scale
Figure 4
Instruction of the main display interface:
Measured value:Display present single time measured value (without average value indicator),
or display the present average value (with average value indicator).
Display ↑ means over conversion or measured range, ↓ means lower than conversion or measured
range.
Impact times: Display the times that have been impacted, the according times will be
displayed in reverse video when browsing single measured value.
Average value indicator:After reaching the preset impact times, It appears to show the mean
value.
Hardness scale: Show the present hardness scale that has been selected.
Impact direction: Show the present impact direction that has been selected.
Battery info: Show the rest capacity of battery.
Over tolerance alarm:It will display as
when the present measured single value or
average value is
within the tolerance range,otherwise it will display as
.
Lower tolerance alarm:It will display as
when the present measured single value or
average value is within the tolerance range,otherwise it will display as
.
6.2 Measuring operation
The screen will display each measured value during each measurement under the measuring
display interface, and the impact times add 1 accordingly;if the measured value is beyond
tolerance range,the according mark will change to solid mark;the average value will be
displayed in 2 seconds when reaching the impact times.
6.3 Key-press operation
z Press
or
to browse singe measured value,the impact times will be
displayed in reverse video;
z Press
to enter the menu.
6.4 Switch off
Press
to switch off.
6.5 Menu structure
Preset tester parameters and the additional functions can be performed by the menu operation. At
the main display interface, press
to enter the main menu.
View File
Delete File
Select Save File
Transfer
Exit
Main display
interface
Save Average
Delete Single
Cal. Average
Memory Manager
Backlight On(Off)
Test Set
System Set
About Software
Exit
Impact Direc.
Average
Material
Hardness Scale
Tolerance Limit
Exit
Auto Save On(Off)
Auto Delete On(Off)
Auto Trans. Off
LCD Brightness
Exit
z For convenient operation, the common function such as “Save Average”
、“Delete
Single”
、“Cal. Average”
、
“Backlight On(Off)”,have been put into main display interface;
z The main display interface have the key 【Exit】,it is convenient to return to measuring
display interface;
z Press 【Exit】 key will return to measuring display interface after using common
function and setting function;
z Press
or
can choose all function and sub-menu circularly ,
to choose the underside function or sub-menu and then press
press
to choose the topside function or
will skip to the topside function or sub-menu,press
sub-menu and then press
, the cursor
, the cursor will skip to the underside function or sub-menu.
6.6 Common function
Press
to enter the main menu under measuring display interface.
Save Average
Delete Single
Cal. Average
Memory Manager
Backlight On
Test Set
System Set
About Software
Exit
Press
or
to move the cursor to
demanded function and press
to confirm.
Note : Press
to see pale
letter。
Save Average:Memory the present average value.
or
Note:The memory can not be processed under the both position of not
reaching preset impact times and not choosing “ Cal.
Average”.
Delete Single:Delete the last measured value;Delete the certain measured value when
browsing the single measured value;Delete the last single measured value when displaying
average value.
Note:Please move the cursor to “YES”or“NO” and press
to
confirm when delete.
Cal. Average:Display the average measured value when impact times have not reached
preset times.
Backlight On(Off):“Backlight On” will be displayed when choosing the backlight;
“Backlight Off” will be displayed when not choosing the backlight.
Note:Press any one of the keys
、
、
when switch on
the backlight will be chose.
6.7 Memory manager
The instrument includes 9 files and each one can memory 30 measured average value. You
can choose another file to memory when 30 measured average value is stored,
Press
to enter the main menu when on measuring display interface.
Save Average
Delete Single
Cal. Average
Memory Manager
Backlight On
Test Set
System Set
About Software
Exit
Press
、
to move the cursor to
enter
【 Memory Manager 】, press
【Memory Manager】.
Note : The pale letter can be seen by
pressing
、
.
View File
Delete File
Select Save File
Transfer
Exit
Press
、
to move the cursor to
certain function key and press
.
Note : The pale letter can be seen by
、
pressing
.
6.7.1 Browsing file
Firstly please choose the file number to be browsed.
File No.:
Press
1
No.01
789HL
No.02
517HL
No.03
788HL
No.04
522HL
、
to choose the file
number.
Press
to confirm.
Press
、
Press
return to【Memory Manager】.
to turn the page.
6.7.2 Delete file
Firstly please choose the file number to be deleted.
File No.: 1
Press
to choose the file
number.
Press
Confirm Delete
YES
、
NO
Press
enter confirm delete interface.
、
to choose.
Press
to confirm and return to【Memory
Manager】.
6.7.3 Memory file choosing
Choose the file number for memory.
File No.: 1
Press
to choose the file
、
number.
Press
to confirm and return to measuring
display interface.
6.7.4 Data communication
The memory value can be transmitted out via USB interface,see 6.15.
6.8 Test setting
Press
to enter the main menu under measuring display interface.
Save Average
Delete Single
Cal. Average
Memory Manager
Backlight On
Test Set
System Set
About Software
Exit
Impact Direc.
Average
Material
Hardness Scale
Press
、
to move the cursor
to 【Test Set】 and press
.
Note:The pale letter can be seen by
pressing
Press
、
、
.
to move the cursor
to certain function and press
.
Note:The pale letter can be seen by
、
pressing
.
6.8.1 Impact direction setting
Press
to move the
、
cursor to certain direction to be set.
Press
to finish the set and return to
measuring display interface.
If preset impact direction to
,the instrument can identify the impact direction and correct
and
the wrong direction automatically. Both directions of
are different and need to be
confirmed by hand.
Confirm Direc.
Press
、
to move the cursor
to correct impact direction.
Press
to confirm.
The indication of different direction displays
is caused of shaking of impact device.
6.8.2 Mean times setting
The mean times can be modified from 1 to
10.
Mean Times:10
Press
Press
、
to modify.
to finish set and return to
measuring display interface.
6.8.3 Material setting
(Cast) Steel
CWT. Steel
STAIN. Steel
GC. Iron
Nc.Iron
Cast Alumin
Copper-Zinc
Copper-Alumin
Press
、
to move the cursor
to certain material to be set.
Press
to finish set and return to
measuring display interface.
Note 1.The hardness scale will come
back to HL after material
setting.
2.Choose material firstly before
choosing hardness scale.
3. The pale letter can be seen by
、
pressing
.
6.8.4 Hardness scale setting
HL HV HB HRC
HS HRB HRA
Press
to move the
、
cursor to certain scale to be set.
Press
to finish and return to
measuring display interface.
Note : 1.The hardness scales that
displayed here only are
corresponding to the choose
material.
2. Choose material firstly
before choosing hardness scale.
3. The hardness scale will come
back to HL automatically after
material setting.
6.8.5 Upper and lower limit setting
Min
0 170
Max
0960
Press
、
to move the cursor
to the position of figure.
Press
to move the cursor to next
figure , the cursor will come back to
measuring display interface when moving to
the last figure.
Note: 1.The instrument will remind
you to reset the upper and
lower limit when presetting is
out of range.
2.The lower and upper limit will
reverse automatically when
the lower setting is over the
upper setting.
6.9 System setting
Press
to enter the main menu under measuring display interface.
Save Average
Delete Single
Cal. Average
Memory Manager
Backlight On
Test Set
System Set
About Software
Exit
Auto Save On
Auto Delete On
Auto Trans. On
LCD Brightness
Exit
Press
、
to move the cursor
to 【System Set】 and press
.
Note:The pale letter can be seen by
、
pressing
Press
、
.
to move the cursor
to certain function to be set
Press
to finish or enter into
corresponding interface.
Auto Save:It stores the average value automatically after measuring and displaying average value.
The “Auto Save On”displays when the function is turned off, and the “Auto Save Off” displays
when the function is turned on.
Auto Delete:The “Auto Delete On” displays when the delete function is turned off,and the
“Auto Delete Off” displays when the function is turned on.
Auto Trans.:The current group value can be transmitted out via USB port. For computer see
6.15. The “Auto Trans On”displays when the auto transmitting function is turned off, and the
“Auto Trans Off”displays when the auto transmitting function is turned on.
6.9.1 LCD brightness setting
Bright:Press[ ]
Dark: Press[ ]
Press
to add the brightness.
Press
to reduce the brightness.
to finish and return to
Press
measuring display interface
Note1、Bright means more brightness.
2、Dark means less brightness.
6.10 Software
Press
to enter into main menu under measuring display interface.
Save Average
Delete Single
Cal. Average
Memory Manager
Backlight On
Test
SetSoftware
About
System Set
Exit
Press
to move the cursor
、
to【About Software】 and press
.
Note:The pale letter can be seen by
、
pressing
.
This interface displays the information about
instrument and software.
No notification if there is any change with
software version and mark.
Press
、
Press
to return to measuring display
to brows.
interface.
Note:The pale letter can be seen by
pressing
、
.
6.11 Software calibration
The tester should be calibrated using standard test block before use this tester for the first time, or
reuse after a long time.
Press
、
and press
simultaneously,the tester is switched on and it enters
the software calibration state.
Calibration
0/5 Times
Preset the impact direction as【
】.
Measure 5 points on the standard hardness
block.
It will display
measurement.
Average=550
Nominal=
550
Press
、
average
to finish calibration.
Range of adjustment: ±15HL.
6.12 Battery replacement
Battery replacement see figure 5.
SIZE:AAA
Figure 5
after
to input nominal
value.
Press
HARDNESS TESTER
MODLE
TH170
BATTERY
AAA 1.5V X 2
GROUP INC.
value
● When battery capability run out, the battery display symbol will glint as
replace battery as soon as possible.
,please
● When replacing the battery the tester should be switch off firstly.
● Push out the battery cover, install 2 AAA(7#)1.5V battery into the battery compartment
according to correct direction.
● Push in the cover after installation of battery.
● The replacement of battery should be finished within 15 minutes, if beyond it the
memory data may lost.
● Please collect the used battery avoiding pollution.
6.13 Backlight
The LCD screen has EL backlight. It is convenient to use in dark condition. Press any one of
three keys
and press
simultaneously, the backlight will be
function on. Also the backlight can be set under the main menu see 6.6.
6.14 Auto Power Off
●The tester has the function of auto power off to save the power of battery.
If there is neither measurement nor any key operation within 5 minutes, the tester will shut
off automatically. ● The screen will glint for 20 seconds before power off. Except
key, press any key to stop the twinkle of LCD screen and stop the operation of
power off at the moment.
●While voltage of battery is too low, the tester will show < Battery Empty!>, then power off
automatically.
6.15 Connection of data transmission cable
Insert one connection 4-pin plug of transmission cable into the USB socket on the side of the
main unit, and insert the other plug into the USB socket in the back of computer box. The
computer will display“TH170 Hardness Tester” founded.
After installation of driver program shipped with the tester, the driver program will imitate
the hardness tester as equipment used in COM3 or COM4.The driver program can be found
and its characteristics such as baud rate can be modified in “Equipment Manager” in
computer. It can be displayed using “Super terminal” etc.
TIME software for PC has includes the driver program.
7 Maintenance and repair
7.1 Impact device
● After the impact device is used for 1000--2000 times, use the cleaning brush provided to
clean the guide tube and the impact body. To clean the guide tube, unscrew the support
ring firstly, then take out the impact body, spin the cleaning brush in counter-clock
direction into the bottom of guide tube and take it out for 5 times, and then install the
impact body and support ring again.
● Release the impact body after use.
● Any lubricant is absolutely prohibited inside the impact device.
7.2 Repair
● When using standard Rockwell hardness block to test, if all the error is bigger than 2
HRC, maybe the test tip is invalid because of abrasion. Changing the test tip or impact
object should be considered.
● When the hardness tester appears any other abnormal phenomena, please do not
dismantle or adjust any fixedly assembled parts by yourself. You can contact with TIME
Group Inc. service department.
8 Inspection periods
The inspection period of such hardness tester should not beyond one year. Uses should arrange
the inspection according to its own condition.
9 Notice for uses
● Non-guaranty parts:
Outside frame、battery cover、display window、impact body、support rings.
10 Notice of transportation and storage
● Please keep it away from vibration, strong magnetic field, corrosive medium, dumpiness and
dust.
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