BAQ dynaROCK II User manual

dynaROCK II
Manual
Version 1.3


Table of contents
1 Introduction.....................................................................................................6
1.1 Main applications and measuring range................................................7
1.1.1 Main applications..........................................................................7
1.1.2 Measuring range...........................................................................7
1.2 Scope of delivery...................................................................................8
1.3 Operating conditions..............................................................................8
2 Manual............................................................................................................9
2.1 ettering.................................................................................................9
2.2 Text boxes..............................................................................................9
3 Equipment description and measurement process......................................10
3.1 Impact device type D...........................................................................10
3.1.1 Special impact device types........................................................10
3.2 eeb hardness measurement process................................................12
4 General notes on the operation....................................................................13
4.1 Keys.....................................................................................................13
4.2 Status indicator line.............................................................................14
4.3 The menus...........................................................................................14
4.4 Text entry.............................................................................................14
4.5 The number field..................................................................................16
5 Implementation of a measurement...............................................................16
5.1 Preparation and control-check before the measurement.....................16
5.1.1 Preparation of the sample...........................................................16
5.1.2 Measuring parameter settings.....................................................18
5.2 Measurement.......................................................................................18
5.2.1 Operational startup......................................................................18
5.2.2 Preparation of the impact device.................................................18
5.2.3 Mounting the impact device........................................................19
5.2.4 Measuring...................................................................................19
6 Operation of the device................................................................................20
6.1 Switching-on........................................................................................20
6.2 The measurement window...................................................................20
6.2.1 Description of the measurement window....................................21
6.2.2 Measurement procedure.............................................................21
6.2.3 Key layout of the measurement window.....................................22
6.3 Statistics..............................................................................................22
6.3.1 Display of the statistics................................................................23
7 Measuring parameter...................................................................................24

7.1 Description...........................................................................................24
7.2 Administration of the measuring parameter sets.................................25
7.2.1 Editing measuring parameters....................................................25
7.2.2 Saving measuring parameter......................................................25
7.2.3 oading measuring parameters..................................................26
7.2.4 Deleting measuring parameters..................................................26
8 Memory functions.........................................................................................26
8.1 New Series..........................................................................................27
8.2 Continue measurement in existing series............................................27
8.3 Deleting a series..................................................................................27
8.4 Displaying a series...............................................................................27
8.5 Data transfer........................................................................................27
8.5.1 Installation...................................................................................28
8.5.2 Connection to dynaROCK II........................................................28
8.5.3 Transfer of dynaROCK II series of measurements.....................29
8.5.4 Transfer of readings....................................................................30
9 System settings............................................................................................30
9.1 anguage.............................................................................................30
9.2 Time.....................................................................................................30
9.3 Date.....................................................................................................30
9.4 Configuration.......................................................................................31
9.4.1 Date format.................................................................................31
9.4.2 Key SCA E.................................................................................31
9.4.3 Key MAT......................................................................................31
9.4.4 Query whether series should be saved.......................................32
9.4.5 Query whether values should be printed.....................................32
9.4.6 Tensile strength unit....................................................................32
9.5 Impact device calibration.....................................................................32
9.6 Factory defaults...................................................................................33
9.7 System information..............................................................................33
10 Elimination of faults....................................................................................33
11 Care and maintenance...............................................................................33
11.1 Impact device.....................................................................................33
11.2 Maintenance.......................................................................................33
12 Safeguarding and transport........................................................................34
13 Information on waste disposal....................................................................35
13.1 English...............................................................................................35
13.2 Français.............................................................................................35
13.3 Italiano...............................................................................................35

13.4 Español..............................................................................................36
14 Technical data.............................................................................................37
15 Appendix.....................................................................................................38
Appendix 2: icense information.....................................................................43

INTRODUCTION
1 Introduction
The dynaROCK II is a portable device for testing the hardness of materials.
The measurement is implemented according to the eeb hardness testing
method. Using this method, most metallic materials can be measured within a
large measuring range.
For different applications, six impact device types are available. The type of the
connected impact device is identified automatically.
Measurements can be made at any angle, even overhead.
The hardness is displayed directly in the hardness scales HRB, HRC, HV, HB,
HS or tensile strength (MPA; measurable only with the impact device types D,
DC and G). A limit-value acoustic alarm facilitates the evaluation.
The dynaROCK II is provided with a measured value memory in which up to
500,000 measured values, with date, time and measuring parameters, can be
stored. The stored series of measurements with the corresponding statistical
data can be printed or display at all times.
In addition, the dynaROCK II offers the so-called test report printout. Here the
measured values are printed immediately. A statistical evaluation cannot be
printed out with it in this case.
6

INTRODUCTION
1.1 Main applications and measuring range
1.1.1 Main applications
•Heavy workpieces
•Cast parts
•Damage analysis on pressure vessels, steam turbo-generators and
other systems
•Bearings and other parts
•Fixed-assembled machines and immovable component parts
•Surfaces of small hollow spaces
•Material allocation in the metal goods storage
•Quick tests over a large area and multi-point measurements on heavy
workpieces.
1.1.2 Measuring range
The measuring ranges of the different impact devices are represented in 3 in
the appendix.
7

INTRODUCTION
1.2 Scope of delivery
No Article Number emark
Standard
scope of
delivery
1 Basic device 1
2 Impact device type D 1 Including cables
3 Hardness comparison
block
1
4 Cleaning brush 1
5 Manual 1
6 Case 1
7 Interface cable 1
8 USB charging adapter 1
Optional
accessories
9 Different special impact
devices and placement
rings
See Chapter 3 and
appendix
10 Microprinter 1
1.3 Operating conditions
Operating temperature: 0°C to 40°C
Storage temperature: -30°C to 60°C
Relative humidity: ≤ 90%
The operating area should be free of severe vibrations, strong magnetic fields,
corrosive materials and thick dust.
8

MANUA
2 Manual
2.1 Lettering
Operating elements Operating elements
KEY Keys
Standard text Descriptions and explanations in text form
Important notes Important notes and remarks
2.2 Text boxes
Operating elements
Explanations of functions and operating
elements are framed in blue.
Entry fields
Green fields describe user inputs and
parameters
Information
Information and notes are provided with yellow
background
Important notes
Important notes and warnings are represented
in red boxes
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EQUIPMENT DESCRIPTION AND MEASUREMENT PROCESS
3 Equipment description and measurement
process
3.1 Impact device type D
1 - Release button
2 - Bolt-arming sleeve
3 - Guide pipe
4 - Reactance coil part
5 - Placement ring
6 - Impact body
7 - Connection cable
3.1.1 Special impact device types
The technical specifications of the individual impact devices are indicated in
Table 4, the requirements on the sample surface in Table 5 and the diameters
and depths of the arising impressions in Table 6.
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EQUIPMENT DESCRIPTION AND MEASUREMENT PROCESS
Type D : Standard impact device for most hardness testing tasks
Type DC : Extremely short impact device for measurements at
inaccessible locations or in pipes
Type C : Impact device with lower impact energy e.g. for
measurements on surface-hardened parts. The
impressions are approximately only half as deep as in case of
impact device D, however, the requirements on the surface
quality are higher.
Type D+15: The impact device has a recessed reactance coil and a
smaller placement surface (11 mm x 14 mm instead of 20
mm) for hardness measuring in slots and deepened areas.
Type D : Impact device with longer impact body. The diameter of the
front pipe is 4.2 mm.
Type G : The impact energy increased with type G for measurements
on heavy casting and forged parts. Measurement only in the
Brinell range up to 650 HB. The requirements on the
surface are not as extensive as with type D.
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EQUIPMENT DESCRIPTION AND MEASUREMENT PROCESS
3.2 Leeb hardness measurement process
The measurement process employed here exploits the difference between the
impact and rebound speed of a small impact body. This is fired in the impact
device onto the sample surface with an exactly defined energy. The plastic
deformation on generating the impression on the sample surface requires
energy. Therefore the rebound speed of the impact body is lower than the
speed before the impact. Both speeds are measured inductively 1 mm above
the surface.
The hardness number is calculated according to the following formula:
Where:
H - eeb hardness
VB – Rebound speed
VA – Impact speed
From the H values, hardness numbers in the usual hardness scales are
obtained using empirically-determined revaluation tables. These revaluations
are dependent on material.
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HL=1000∗VB
VA

GENERA NOTES ON THE OPERATION
4 General notes on the operation
4.1 Keys
Switching on/off the device.
Changes the impact direction
Changes the hardness scale.
Changes the material.
Delete last measurement point
Display statistics
Into the main menu
Cursor keys
With these keys, menu items are selected and the re-
quired values in fields set-adjusted.
With this key, the current function is exited. The higher-
level menu item is accessed.
The processing is completed with this key in a field, or a
subordinate priority menu item is selected.
13

GENERA NOTES ON THE OPERATION
4.2 Status indicator line
The rechargeable battery status and the time are displayed in the status
indicator line above in the window.
4.3 The menus
A menu consists of a list of available menu items and a bar which identifies the
already active menu item. This bar can be
displaced in the menu with the aid of the cursor
keys. As a result of pressing ENTER the marked
menu item is selected. Either a window or a
submenu are opened by that.
With ESC, a return is made to the former menu.
Special value was not placed on complicating the operation through deeply
interleaved menus.
4.4 Text entry
In case of saving measuring data and measuring parameters, inputs are
possible in plain text. In these cases, the text entry window is opened.
In the upper field (designated as text field in the following) the entered text is
displayed, in the rows below are represented the characters which can be
selected. The blank is identified with [ ].
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Illustration 2: Text entry
Illustration 1: Main menu

GENERA NOTES ON THE OPERATION
Below the characters is located a strip with command buttons for control. These
command buttons are allocated as follows:
The field on which the focus is placed is identified by a yellow background. With
the keys ▲ and▼ the focus is set on the line above or below the current line.
The allocation of the keys is different, depending on which field has the focus at
the time.
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A/a Switching between upper case and lower case
OK Accepting text and closing text entry windows
Cancel Closing text entry windows without accepting the text
Action Key/s
Focus on text field
Shift input mark ◄ and►
Deletion of the character in front of the input mark DE
Accepting text and closing text entry windows ENTER
Closing text entry windows and asking whether the text should
be accepted.
ESC
Focus on character area
Selection of the character to the left or right of the current
character
◄ and►
Entering character in the text field ENTER
Deletion of the last entered character DE
Closing text entry windows and asking whether the text should
be accepted.
ESC
Focus on command button
Implement action ENTER
Selection of the command button to the left or right of the
current one
◄ and►
Deletion of the last entered character DE
Closing text entry windows and asking whether the text should
be accepted.
ESC

GENERA NOTES ON THE OPERATION
4.5 The number field
A number field is used for the input of numbers. It consists of mostly several
digits which can be changed separately, and a marker, as well as the cursor
which can be displaced with the cursor keys ◄ and ► within the number field.
The Item on which the cursor is at this time can be modified through pressing
the cursor keys ▲ and ▼
A further, leading digit for the input of larger numerical values can be generated
by cursor ◄.
The input is saved and concluded with ENTER. With ESC, the entry field is
closed without saving.
5 Implementation of a measurement
5.1 Preparation and control-check before the measurement
5.1.1 Preparation of the sample
The preparation of the sample surface should correspond to the relevant
specifications from 5 (on Page 41 in the appendix).
•In case of sample preparation, procedures which can influence the surface
hardness of the sample, such as e.g. overheating, cooling etc., should be
avoided as far as possible.
•If the surface of the sample is too uneven, measuring errors can occur. The
sample surface should shine metallic, be smooth, level and free of dirt and
oil.
•Underlay for test specimens:
–In case of heavy test specimens, no underlay is necessary (see 5
(Page 41 in the appendix): Minimum weight of the sample)
–Test specimens of medium weight require a flat, solid underlay (see
5 (Page 41 in the appendix): Minimum weight of the sample)
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IMP EMENTATION OF A MEASUREMENT
–The sample must be placed onto the underlay so that it is stable and
flush
•In case of measurements on large plates, long rods or curved work pieces,
the impact effect of the impact device can cause small deformations or
vibrations which lead to measuring errors, also when the weight of the
sample corresponds to the specifications in 5 (on Page 41in the appendix).
In such cases, the sample should be reinforced or supported on the
opposite side of the measuring point.
•In the ideal case, the sample surface should be level. In case of surfaces
with a radius of curvature R<30 mm (with impact devices of the type D, DC,
D+15, and C) and R<50 mm (with impact devices of the type G), a
correspondingly shaped placement ring, which is adapted to the radius of
curvature, must be screwed onto the impact device for the secure mounting
of the impact device.
•In case of samples with hardened surface, the case hardening depth should
correspond to the specifications in 5 (on Page 41 in the appendix).
•The sample should not indicate any internal magnetism, since this can
influence the measurement of the speeds of the impact body.
17
Illustration 3:

IMP EMENTATION OF A MEASUREMENT
5.1.2 Measuring parameter settings
The required measuring parameters must be set-adjusted according to
requirements. It involves the following:
Material
Hardness scale
Impact direction
Tolerance limits
Online statistics
Test report printout
The measuring parameters are described in Chapter 7.
5.2 Measurement
Before the measurements, the test device should be checked by means of a
hardness comparison block. The precision and repeatability of the
measurements should lie within the limits from 2 (on Page 38 in the appendix).
5.2.1 Operational startup
•Connecting impact device
•Press the red activation key to switch on the device. With the start, the last
set-adjusted measuring parameters are loaded (see Chapter 7). The device
is now ready for measurement.
5.2.2 Preparation of the impact device
Slide the bolt-arming sleeve down slowly and uniformly to the stop. Then slowly
bring the bolt-arming sleeve into the starting position again.
18
Note: The hardness of the comparison block is indicated on the
block. Hardness comparison blocks with DKD certificate are
available in three different hardnesses. When the measured
values of the
dynaROCK II
deviates from the hardness of the
comparison block the device must be calibrated.

IMP EMENTATION OF A MEASUREMENT
5.2.3 Mounting the impact device
Press the placement ring of the impact device firmly and without wobbling onto
the test specimen. The impact direction must correspond to the set-adjusted
direction.
5.2.4 Measuring
Press release button above on the impact device. Sample and impact device
must be held steady and stable in this case.
For every measuring point, 5 measurements should be carried out whose
deviation should not exceed ±15 H .
The minimum distance between two measuring points, and the minimum
distance between a measuring point and the edge of the sample, should
correspond to the specifications in 1.
Impact device type Separation distance
between the center points
of two impressions
Separation distance between
the center point of an
impression and the edge of
the sample
Not less than /mm Not less than /mm
D / DC 3 5
D 3 5
D+15 3 5
G 4 8
C 2 4
Table 1
19

IMP EMENTATION OF A MEASUREMENT
The measurement is completed with the acoustic signal.
If the eeb hardness is to be converted into another hardness scale, a
benchmark comparison test must be carried out in order to obtain a suitable
conversion factor for the corresponding material. Test measurements are
carried out on the same sample with a well calibrated eeb hardness testing
device, and with another hardness tester, according to the required hardness
scale. For every hardness number, 5 measurements with the eeb hardness
testing equipment must be carried out, uniformly distributed around a hardness
impression of the other hardness testing device. At least three hardness
impressions should be measured. The average value of the eeb hardness and
the average value of the measured values in the other hardness scale are used
for the generation of a comparison hardness curve. The comparison hardness
curve should be calculated from at least three series of corresponding values.
6 Operation of the device
6.1 Switching-on
Press the red activation key to switch on the device.
If an impact device is connected, then the type of the impact device is identified
automatically and the device goes into measurement mode. At this point it
should be checked whether the impact device type has been identified
correctly.
6.2 The measurement window
If an impact device is connected, the measurement window is displayed after
switching on.
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