Bulut Makina HARTIP-1500 Quick start guide
1. Forewords ......................................................................................................3
1.1 History......................................................................................................3
1.2 Leeb Hardness Test (definition)...................................................................3
1.3 Notation of Leeb Hardness.............................................................................4
2. Features And Applications................................................................................4
2.1 Specifications.............................................................................................4
2.2 Features....................................................................................................4
2.3 Applications...............................................................................................4
4. Symbols And Illustrations.................................................................................6
4.1 Symbols And Illustrations Of Hardness Csale................................................6
4.2 Symbols Of Materials..................................................................................6
4.3 Measurement And Conversion Table............................................................6
5. Preparation Before Measuring ..........................................................................7
5.1 Requirements For The Sample.....................................................................7
5.2 Requirements For The Weight Of The Sample ..............................................7
5.3 Requirement For The Surface Hardened Layer Of The Sample...........................7
5.4 Surface Of The Test Sample Should Not Be Magnetic....................................7
5.6 Supporting The Samples During Testing.......................................................8
5.7 Samples With Curved Surfaces....................................................................8
6. Operation.......................................................................................................9
6.1 Operation..................................................................................................9
6.2 Take Measurement...................................................................................10
6.3 View Statistic Value..................................................................................11
6.4 Memory..................................................................................................11
7.Calibration.....................................................................................................11
7.1 Intelligent Calibration ...............................................................................11
7.2 Precise Calibration....................................................................................12
7.3 Default Setting.........................................................................................12
8. Maintenance And Repair................................................................................12
8.1 Mmaintenance Of The Impact Device.........................................................12
8.2 Charging Battery......................................................................................12
8.3 Fault Diagnosis ........................................................................................13
9. Optional Accessories......................................................................................14
Operation
HARTIP-1500 Manual Rev:00 2 / 14
1. Forewords
1.1 History
The Leeb measuring method was first brought into measurement technology in 1978.
It is defined as the quotient of an impact body’s rebound velocity over its impact
velocity, multiplied by 1000. Harder materials produce a higher rebound velocity than
softer materials. For a specific group of material (e.g. steel, aluminum. etc.), Leeb
hardness value represents a direct relationship to its hardness properties. For
ordinary metal, conversion curves of hardness HL versus other standard static
hardness (HB, HV, HRC, etc.) are available, enabling you to convert HL into other
hardness values.
1.2 Leeb Hardness Test (definition)
An impact bodywith 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 are
measured by the following method: A permanent magnet embedded in the impact
body, when passing through the coil in its coil holder, induces in the coil an electric
voltage proportional to the velocities of the magnet. Leeb hardness is expressed by
the following formula:
HL=1000×(VB/VA)
Where: HL is Leeb Hardness
VB is the rebound velocity of the impact body
VA is the impact velocity of the impact body
The voltage characteristic of output signal, when the
impact body passes through the induction coil is illustrated in the following figure:
Voltage characteristic of output signal
Changed between the individual impacts.
Operation
HARTIP-1500 Manual Rev:00 3 / 14
1.3 Notation of Leeb Hardness
When measuring the hardness of a sample material using the traditional static
hardness testing method, a change of applied pressure will result in a change in the
hardness reading.
For example: 720HLD≠720HLC
Because different converting curves are obtained from different impact devices, when
converting hardness L into another hardness value the notation for the converted
hardness value should include the impact device used.
2. Features And Applications
2.1 Specifications
·Display: LCD
·Accuracy: +/-6HL at HL=800 (0.8%)
·Measuring range: 200-960L
·Conversion: HL-HRC-HRB-HB-HV-HSD
·Materials: 9 different common materials
·Wireless RS232 to PC and micro-printer (Plus)
·Memory: 99 data can be stored and re-readable
·Impact device: D
·Power on/off: Auto
·Power supply: DC 9V Ni-MH rechargeable battery
·Dimension: 100×60×33mm
·Weight: 150g
2.2 Features
·Rugged and modular design
·Palm size for narrow space
·High accuracy
·Take measurements on line with PC (Plus)
·Wireless RS232 (Plus)
·Wireless micro-printer (Plus)
·Automatic power on/off
·Recalibration allowed
2.3 Applications
Hardness tests on installed machines or steel structures: e.g. on heavy and large
work-piece or on permanently installed system parts.
Rapid testing of multiple measuring areas for examination of hardness variations
over larger regions.
Measuring hardness for produced parts at production line.
Identifying metallic material stored in a warehouse.
Ineffectiveness analysis of permanent parts, pressure-vessel, turbo generator.
Operation
HARTIP-1500 Manual Rev:00 4 / 14
3. Designation Of Individual Parts
L
O
A
D
I
N
G
LOADING
ROD
IMPACT DEVICE
CIHARGING
INLET
LCD
RELEASE BUTTON
KE
Y
Key M
Manu
Calculate data (AVE, MAX, MIN)
Increment when adjusting
Diagram of calibration operation
Operation
HARTIP-1500 Manual Rev:00 5 / 14
4. Symbols And Illustrations
4.1 Symbols And Illustrations Of Hardness Csale
Symbols Illustrations
LD
HB
HRB
HRC
HSD
HV
Leeb hardness value used with impact device D
Brinell hardness value
Rockwell B hardness value
Rockwell C hardness value
Shore hardness value
Vicker hardness value
4.2 Symbols Of Materials
Symbol Illustrations
1 Steel and cast steel
2 Cold work tool steel
3 Stainless steel and high temperature-resistant steel
4 Cast iron with lamellar graphite (grey cast iron GG)
5 Cast iron with spheroidal and nodular graphite (GGG)
6 Cast aluminium alloys
7 Copper-zinc alloys (brass)
8 Copper-alu / copper-tin alloys (bronze)
9 Wrought copper alloys, low alloyed
4.3 Measurement And Conversion Table
Range for measurement and conversion:
IMPACT DEVICE D L D: 200-900
H R C H R B H B H V H S D
STEEL 20.0-
67.9
59.6-
99.5
80-647 80-940 32.5-99.5
CWT.ST 20.5-
67.1
80-898
ST.STEEL 19.6-
62.4
46.5-
101.7
85-655 85-802
GC.
IRON
93-334
NC.IRON 131-
387
C.ALUM 30-159
BRASS 13.5-
95.3
40-173
BRONZE 60-290
COPPER 45-315
Operation
HARTIP-1500 Manual Rev:00 6 / 14
5. Preparation Before Measuring
5.1 Requirements For The Sample
5.1.1 The surface temperature of sample should be less than 120 °C.
5.1.2 The samples must feature a metallic smooth, ground surface, in order to
eliminate erroneous measurements brought about by coarse grinding or lathe
scoring. The roughness of the finished surface should not exceed 2μm.
5.2 Requirements For The Weight Of The Sample
·For samples weighing over 5 kg and of compact shape, no support is needed.
Support, in such a manner that they do not bend or move by the impact force.
·Samples weighing less than 2 kg should be firmly coupled with a stable support
weighing over 5 kg.
For coupling purposes,
⎯The coupling surface between the sample and base plate should be flat, plane
parallel and ground.
⎯A thin proper layer of coupling paste is to be applied to the contact surface of the
sample.
⎯The sample should be firmly pressed against the surface of
the base plate by moving it with a circular motion.
⎯The direction of impact should be perpendicular to the coupling surface.
For the coupling operation, the following prerequisites must be fulfilled:
⎯The contact surface of the sample and the surface of the base plate must be flat,
plane parallel and ground.
⎯The direction of the test impact must be perpendicular to the coupled surface.
⎯Minimum thickness of the sample for coupling (3mm).
Proper Coupling :
Proper coupling requires a little experience. Insufficiently coupled samples produce
large variations of individual measurements, L-values which are too low and the
operation is characterized by a rattling noise upon impact of the test tip.
5.3 Requirement For The Surface Hardened Layer Of The
Sample
Surface -hardened steels and especially case-hardened steels produce L-values
which are too low when case-hardening depth is small because of their soft core.
When measuring with impact device D the depth of the hardened layer should be no
less than 0.8 mm.
5.4 Surface Of The Test Sample Should Not Be Magnetic.
5.5 For test sample of curving surface with radius of curvature R less than 30mm, a
small support ring should be used.
Operation
HARTIP-1500 Manual Rev:00 7 / 14
5.6 Supporting The Samples During Testing
Type of impact device Classification of samples
heavy medium-weight light-weight
D more than 5 kg 2 – 5 kg 0.05– 2 kg
When measuring hardness with HARTIP 1500, the following has to be noticed:
Despite the low mass of the impact body and low impact energy, a relatively large
impact force of short duration is generated when the impact body hits the measuring
surface. The max. impact force of impact device D is 900N.
For heavy samples of compact shape, no particular precautions are necessary.
Smaller and lighter samples or work pieces yield or flex under this force, producing L-
values which are too small and of excessively large variation. Even with big or heavy
work pieces it is possible for thin-wall regions or thinner protruding parts to yield upon
impact. Depending on the frequency of the resilient yielding action, the
measured L-value may be too small or too large. In many situations, potential
problems can be checked in the following manner:
a) Medium-weight samples and also heavier samples with protruding parts or
thin walls should be placed on a solid support in such a manner that they do not
move or flex during the test impact.
b) Light-weight samples should be rigidly “coupled” with a non-yielding support
such as a heavy base plate. Clamping in a vice is of no value, since the samples
become exposed to stress and because complete rigidity is never attained. As a rule,
the measured L-values would be too small and show excessive variations.
5.7 Samples With Curved Surfaces
Impact testers only work properly, if the impact body has a certain position in the
guide tube at the moment of impacting the test surface. In the normal position,
automatically present when testing flat and convex-cylindrical samples (such as
round samples), the spherical test tip is located exactly at the end of the guide tube.
However, when testing spherically or cylindrically shaped concave surfaces, the
impact body remains further within the guide tube or protrudes further therefore.
Thus, with such types of curved surfaces, it is to be observed that radii of curvature
do not drop below the values indicated in the following Fig.
Curved surfaces should always be tested with the small support ring.
Impact device types D Rmin=30mm
For impact devices D, special support rings are available to accommodate smaller
radii on convex or concave surface.
Operation
HARTIP-1500 Manual Rev:00 8 / 14
6. Operation
Diagram of operation :
6.1 Operation
6.1.1 Press key M for 3 seconds into item DIRE of the menu. Then by pressing
key M in turn to enter into item MATE, CONV, AVER respectively. Finally come back
to the mode of measurement.
6.1.2 After pressing key M for 3 seconds into item DIRE, press C in turn to
change the impact direction.
6.1.3 After pressing key M into item MATE, press C in turn to change the
materials setting.
Operation
HARTIP-1500 Manual Rev:00 9 / 14
M1: Steel/Cast Steel M2: Cold Work Tool
Steel
M3: Stainless Steel M4: Grey Cast Iron
M5: Cast Iron nod. M6: Cast Alum. Alloys
M7: Brass M8: Bronzes
M9: Wrought Copper
All.
6.1.4 After pressing key M into item CONV, press C to change the hardness
scale (HLD-HRC-HRB-HB-HV-HSD).
6.1.5 After pressing key M into item AVER, press C in turn to select the
average times from 0-3-4-5 and SAV. Selecting 0 means no mean values and SAV
means memory is activated.
6.1.6 Press key M back to measuring mode, then LCD displays 0.
Example for coupling a test piece with a base plate:
Application of the coupling paste
(As thin as possible).
6.2 Take Measurement
L
O
A
D
I
N
G
LOADING
ROD
IMP
A
CT DEVICE
Operation
HARTIP-1500 Manual Rev:00 10 / 14
6.2.1 Press the release button on top of HARTIP 1500 to turn on the tester.
6.2.2 Insert the loading rod into the tube of impact device to push
the impact body to depress the spring until the impact body is locked.
6.2.3 Place the tester against the surface of work piece
Please note: the impact device must be firmly against the
surface or you may get unsatisfied value.
6.2.4 Press the release button on top of the tester and take measurement. The
measuring value will be displayed on LCD.
6.3 View Statistic Value
After test by certain average times, press M in turn. LCD displays mean value, max
value and min value.
Please note: If a value is not realistic during measuring, press key C to delete it on
LCD in order not to influence the calculating of average.
6.4 Memory
HARTIP 1500 can save 99 values in its memory and these stored values can be read
after work.
6.4.1 Activate memory
Press and hold key M for 3 seconds into menu of setup and press key M in turn to
display AVER. Press key C to select SAV.( circle 0-3-4-5-SAV). Then press key M to
come back measuring mode. At this moment, S00 will be displayed on left of LCD( if
there are a few values in memory, it will be the ordinal number Sxx). Take
measurements, all values will be stored automatically in memory.
6.4.2 View stored values
Under measuring mode, press and hold key C for 3 seconds to enter into mode of
viewing stored values. At same time, the ordinal number Sxx will be changed Rxx,
press key M or C to recall stored values forwards and backwards. Then, press and
hold key C for 3 seconds to come back measuring mode.
6.4.3 Clear memory: under the mode of viewing stored values, press and hold
key M and C simultaneously for 3 seconds to delete all stored values.
7.Calibration
After a long period of use, especially for measuring harder materials, the ball tip of
impact body will be worn which may lead the HARTIP 1500 have more or less error
on accuracy. At this moment, HARTIP 1500 is designed to allow recalibration. The
calibration can be made in two modes - intelligent and precise mode.
7.1 Intelligent Calibration
7.1.1 Make sure the average time is to be set up 3 times
7.1.2 Take measurements on standard test block for 3 times
7.1.3 Press key M to display mean value of measurements.
7.1.4 Press and hold key C for 3 seconds, the mean value will be calculated
automatically to standard value. At the same time, the LCD displays CAL at left.
7.1.5 Press and hold key M to confirm the calibration.
Key C
·Change setting
·Delete unrealistic values
·Decrement when adjusting
·Read stored data
Operation
HARTIP-1500 Manual Rev:00 11 / 14
7.2 Precise Calibration
When you make intelligent calibration, if the calibrated value on LCD differs from
standard value, please enter into precise calibration.
7.2.1 Make intelligent calibration step 1-4 procedures if the calibrated value
differs from the standard value.
7.2.2 Press and hold key C for 3 seconds to enter into the mode of precise
calibration. A sign of Adj will be displayed at left of LCD
7.2.3 Press key M or C to increase or decrease the value to be the standard
value.
7.2.4 Press key M and C simultaneously to finish the calibration.
Please note :
1. If the measurement error comes with in the range of accuracy
specification, please do not make calibration easily.
2. Pease make sure to recover factory setting first before make
calibration each time.
7.3 Default Setting
After a long period of use, you may replace the impact body with a new one. Thus it
needs to recover the factory setting (default).
7.3.1 Set up average by 3 times and take any measurements accordingly
7.3.2 Press key M to display mean value.
7.3.3 Press and hold key M and C simultaneously to recover factory setting.
8. Maintenance And Repair
Do your best to avoid shock, heavy dust, damp, strong magnetic field, and oil stain.
8.1 Mmaintenance Of The Impact Device
The devices do not require any particular care other than periodic cleaning of the
impact body and the guide tube after performing approximately 1000-2000 tests.
During cleaning, the following procedures need to be observed:
⎯Unscrew support ring and remove impact body from guide tube.
⎯Clean off any dirt and metallic dust from the impact body and the spherical test tip.
⎯Clean guide tube with the special brush provided.
⎯Do not apply oil to any parts for the impact device.
8.2 Charging Battery
When a battery indicator displays on LCD which reminds you to charge the battery.
However it is still possible to measure for some time. Please make sure to obtain
additional or replacing battery from machine. Otherwise it may cause Hartip 1500 to
get un-accuracy value.
Insert the plug with battery charger into the socket on the right side of tester. Connect
the battery charger with mains power to begin charging battery. It may take 12-15
hours to fully charge the battery.
Operation
HARTIP-1500 Manual Rev:00 12 / 14
8.3 Fault Diagnosis
If finding any abnormalities, please read our fault diagnosis first.
8.3.1 No impact occurs-impact body is not or improperly located in the impact
device/impact body does not release or cannot be loaded.
8.3.2 Marked deviation of individual L-values or L-values constantly too low-
measuring area inadequately prepared/the tested material is extremely
inhomogeneous or porous/sample is insufficiently supported/sample exhibits large
local hardness differences e.g. at the transition seam to the base material/impact
direction has been
A Leeb’s Hardness Tester measures the hardness of sample material in terms of
Hardness Leeb (HL), which can be converted into other Hardness units (Rockwell B
and C, Vicker, Brinell and Shore D).
8.3.3 L-values at the standard test block constantly too low-impact device
contaminated/spherical test tip cracked (e.g. due to impact against tungsten
carbide)/support ring does not have rubber pad.
8.3.4 L-values at the standard test block constantly too high-spherical test tip
flattened (impact against tungsten carbide, wear)/standard test block damaged or full
of indentations.
8.3.5 If the test value displays ERRO on LCD, it means you make an improper
operation.
Operation
HARTIP-1500 Manual Rev:00 13 / 14
9. Optional Accessories
Support Rings for Impact Device D
Part designation and dimensions: Suitable for the following test
surfaces
D6
Φ19.5×5.5mm
R≥60mm
plane
cylindrical
hollow-cylindrical
spherical
hollow-spherical
D6a
Φ13.5×5.5mm
R≥30mm
plane
cylindrical
hollow -cylindrical
spherical
hollow-spherical
Z 10-15
Z 14.5-30
Z 25-50
20×20×7.5mm
20×20×6.5mm
20×20×6.5mm
cylindrical
R 10mm-15mm
R 14.5mm-30mm
R 25mm-50mm
R<10mm not possible
R≥30mm D6/D6a
HZ 11-13
HZ 12.5-17
HZ 16.5-30
20×18×5mm
20×20×5mm
20×20×5mm
hollow-cylindrical
R 11mm-13mm
R 12.5mm-17mm
R 16.5mm-30mm
R<11mm not possible
R≥30mm D6a
K 10-15
K 14.5-30
Φ20×7.7mm
Φ20×6.7mm
spherical
R 10mm-13mm
R 14.5mm-30mm
R<10mm not possible
R≥30mm D6/D6a
HK 11-13
HK 12.5-17
HK 16.5-30
Φ17×5mm
Φ18×5mm
Φ20×5mm
hollow-spherical
R 11mm-13mm
R 12.5mm-17mm
R 16.5mm-30mm
R<11mm not possible
R≥30mm D6a
UN Φ52×20×16mm
Operation
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