ULTIMATE COMPRESSION FLEXOMETER OPERATION

DOLI
ULTIMATE
COMPRESSION FLEXOMETER
OPERATION- AND MAINTENANCE MANUAL
www.doli.de
(Version 2.0.0.1, Release: 08.05.2008)
DOLI Elektronik GmbH
Page ii
Corporate name:
DOLI Elektronik GmbH
Headquarters:
Adi-Maislinger-Straße 7, 81373 München, Germany
+49-(0)89-20 243-0
Fax
+49-(0)89-20 243-243
e-mail
[email protected]
Production:
Ulmer Straße 34, 89584 Ehingen, Germany
+49-(0)7391-58039-0
Fax
+49-(0)7391-58039-71
e-mail
[email protected]
Sales:
Mühlstr. 26, 55271 Stadecken-Elsheim, Germany
+49-(0)6130-944250
Fax
+49-(0)6130-944251
e-mail
[email protected]
Internet:
www.doli.de
www.flexometer.com
UltiFlex_Manual_EN.doc
Table Of Contents
1.
INTRODUCTION .................................................................................................................................... 5
1.1.
SAFETY HINTS .................................................................................................................................. 6
1.1.1. General Safety Hints.................................................................................................................... 6
1.1.1.1.
Warning Signs and Hints ...................................................................................................... 6
1.1.1.2.
Demands on personnel......................................................................................................... 6
1.1.2. CE-Conformity, Directions and Standards................................................................................... 7
1.1.3. Specified normal Operation ......................................................................................................... 8
1.2.
DESCRIPTION OF THE DOLI ULTIMATE COMPRESSION FLEXOMETER ................................... 9
1.2.1. The System .................................................................................................................................. 9
1.2.2. The Actuator .............................................................................................................................. 10
1.2.2.1.
Vibration Absorbing System ............................................................................................... 11
1.2.3. The Sample................................................................................................................................ 11
1.2.3.1.
Hardness of the sample...................................................................................................... 11
1.2.3.2.
The lower Holder ................................................................................................................ 11
1.2.3.3.
The Input Station ................................................................................................................ 11
1.2.4. The Temperature Chamber ....................................................................................................... 12
1.2.5. The Preheat Station ................................................................................................................... 12
1.2.6. The Magazine ............................................................................................................................ 12
1.2.7. The Handlingarm System .......................................................................................................... 13
1.2.8. The Height Measurement Station .............................................................................................. 14
1.2.9. The Puncture Needle ................................................................................................................. 14
1.2.10.
The Output Station (Garbage)................................................................................................ 14
1.3.
SPECIFICATIONS ............................................................................................................................ 15
1.4.
ONLINE - HELP ................................................................................................................................ 16
2.
OPERATION......................................................................................................................................... 17
2.1.
SECURITY ........................................................................................................................................ 17
2.1.1. Sensors of the Temperature Chamber ...................................................................................... 17
2.1.1.1.
Front Door........................................................................................................................... 17
2.1.1.2.
Rear Door ........................................................................................................................... 17
2.1.1.3.
Position of the Temperature Chamber ............................................................................... 18
2.1.2. Sensors of the Magazine ........................................................................................................... 18
2.1.3. Overview .................................................................................................................................... 19
2.2.
FLEXOMETER .................................................................................................................................. 20
2.2.1.
2.3.
Switch-On................................................................................................................................... 20
PROGRAM........................................................................................................................................ 21
2.3.1. Start and Control........................................................................................................................ 21
2.3.1.1.
Start of the Program ........................................................................................................... 21
2.3.1.2.
Control with the Function Fields ......................................................................................... 24
2.3.1.3.
Control with the Popup-Menu ............................................................................................. 25
2.3.1.4.
Control with the Main Menu Line ........................................................................................ 26
2.3.2. Flexometer Settings ................................................................................................................... 28
2.3.2.1.
Hardware ............................................................................................................................ 28
2.3.2.2.
File Management ................................................................................................................ 29
2.3.2.3.
Filename ............................................................................................................................. 29
2.3.2.4.
Language/Print/Formula ..................................................................................................... 30
2.3.2.5.
Display ................................................................................................................................ 31
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2.3.2.6.
Graphic ................................................................................................................................31
2.3.2.7.
Security................................................................................................................................32
2.3.3. Sample Parameters ....................................................................................................................33
2.3.3.1.
Input of the sample parameters...........................................................................................33
2.3.4. Status Information.......................................................................................................................37
2.3.4.1.
Supervisor Menu .................................................................................................................37
2.3.4.2.
Signals Menu.......................................................................................................................38
2.3.4.3.
EDC - Messages .................................................................................................................39
2.3.4.4.
Legend.................................................................................................................................40
2.3.4.5.
Invalid Samples ...................................................................................................................40
3.
TEST......................................................................................................................................................41
3.1.
GENERAL TEST DESCRIPTION......................................................................................................41
3.2.
FLEXTEST.........................................................................................................................................42
3.3.
BLOWOUT TEST DEFORMATION/TEMPERATURE ......................................................................43
3.4.
VISCOELASTIC PROPERTIES ........................................................................................................44
4.
RESULTS..............................................................................................................................................45
4.1.
RESULTS OVERVIEW ......................................................................................................................45
4.2.
SINGLE RESULTS ............................................................................................................................47
4.3.
PRINTOUTS ......................................................................................................................................48
4.4.
EXPLANATION OF THE RESULTS..................................................................................................49
5.
MAINTENANCE ....................................................................................................................................51
5.1.
MAINTAINING THE INSTRUMENT ..................................................................................................51
5.1.1.
5.1.2.
5.1.3.
5.1.4.
5.2.
6.
Draining of the Compressed-air System.....................................................................................51
Changing the lower holder..........................................................................................................52
Changing the puncture needle ...................................................................................................53
Cleaning the Stations .................................................................................................................54
SPARE PARTS..................................................................................................................................55
APPENDIX ............................................................................................................................................56
6.1.
Page iv
WHERE IS THE SAMPLE? ...............................................................................................................56
UltiFlex_Manual_EN.doc
1. Introduction
1. INTRODUCTION
Dear customer, thank you for choosing the Ultimate Compression Flexometer from DOLI Elektronik GmbH. This
manual will help you to get familiar with the instrument soon and it will help you to be able to answer questions
and solve problems that may arrive during the operation.
• You will get a description of your new instrument.
• You will get an installation and user manual.
• You will get a description of the Flexometer test procedure.
© 2004 DOLI Elektronik GmbH. All rights reserved.
UltiFlex_Manual_EN.doc
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1.1. Safety Hints
1.1. Safety Hints
1.1.1. General Safety Hints
Read this manual carefully before starting with the installation and operation of the Flexometer. False handling of
the instrument can cause severe damage to persons and property. It is essential to adhere to the technical
directions and connection conditions from the name plate and documentations.
1.1.1.1. Warning Signs and Hints
This manual contains several symbols, that will allow you to find your way more easily. Furthermore, the manual
contains warning signs adverting to possibly dangerous situations. These warning signs may be found on the
instrument, too. It is essential to adhere to the warning signs and the related hints:
Table 1 : Symbols and their meanings.
Symbol
Meaning
Safety Instructions:
In order to avoid interruptions in the work flow as well as damages to
man and machine, follow the safety instructions at all cost.
Safety Instructions: Danger by electricity and its effects
In order to avoid interruptions in the work flow as well as damages to
man and machine, follow the safety instructions at all cost.
Job/work instructions:
Instructive part of the document with precise work instructions
Here you are asked to do something.
Information:
General information and descriptions of working procedures, etc.
Note:
Important note for the operation, the function or for the working
procedures.
Tip:
Gives tips for easy handling of the Flexometer.
1.1.1.2. Demands on personnel
Attention! Only qualified personnel are allowed to perform transport, mounting, installation,
start-up, operation or maintenance.
Qualified personnel are people being well acquainted with transport, mounting, installation, start-up, operation or
maintenance. These people must be adequately qualified for their occupations. In detail:
• Transport:
Personnel skilled in treating componentries being susceptible to electrical discharge, only!
• Installation: Personnel with electro-technical apprenticeship, only!
• Start-up:
Personnel with wide-ranged skills in the fields of electrotechnics and/or drive engineering, only!
• The qualified personnel must know and adhere to the following standards and directions:
IEC 364 respectively CENELEC HD 384 or DIN VDE 0100
National accident prevention directives or VBG 4
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UltiFlex_Manual_EN.doc
1. Introduction
Attention! The EDC appliances do contain componentries being susceptible to electrical discharge.
These componentries may be damaged by incorrect treatment. Avoid the contact with
highly insulating material (synthetic fibres, synthetic foils etc.)
Attention! Do not open the EDC appliances! Keep all coverings closed during operation. There is
danger of dead or severe damage to persons or property.
Attention! Draw the mains plug before opening the covering of the EDCs. There is danger of dead
or severe damage to persons or property.
Attention! Never disconnect any electrical connection especially at the EDC, while the instrument is
still energized. In bad cases, electric arcs may emerge and damage persons or property.
Attention! After having drawn the mains plug, wait at least two minutes before touching potentially
live componentries (e.g. contacts, thread bolts) or disconnecting any electrical
connection. After disconnection of the supply voltage, capacitors may bear dangerous
voltages for up to two minutes. For your safety, it is recommended to measure the
voltage in the link and wait, until it has fallen below 40V.
1.1.2. CE-Conformity, Directions and Standards
CE Declaration of Conformity: In sole responsibility we herewith declare, that the product Flexometer, Type 1170
meets the requirements fixed in the directive (73/23/EEC), Council Directive of 19. February 1973 on the
harmonisation of the laws of Member States relating to Electrical Equipment designed for use within certain
voltage limits.
Low Voltage Directive (73/23/EEC): The harmonized standards of the series prEN 50178 in connection with EN
60204 are used for our appliances.
EMC-Directive (89/336/EEC) and (2004/108/EC): Under observance of the installation instructions of this
documentation, we herewith declare the meeting of the objectives of the EMC Law (EMCG) for facilities and
instruments with the following standards:
EN 50082-2 of 12.1994, EN 50081-1 of 08.1993, IEC 801-2 of 01.1991, IEC 801-4 of 09.1987, EN 55011 of
03.1991.
In this documentation, you will find instructions for the EMC-compatible installation, such as shielding, grounding,
manipulation of plugs and laying of wires.
EC Machinery Directive (98/37/EC) and future (2006/42/EC): The Flexometer meets the instructions of the EG
Machinery Directive.
The EC directive (2002/95/EC) is used for our appliances, also.
Regarding the safety of machines, the following standards are met:
DIN EN 292, DIN EN 294 part 1...4, DIN prEN 954 part 1, DIN EN 418 of 01.93, DIN EN 349 of 08.90, DIN VDE
0160 of 05.88, DIN EN 50081 part 2, DIN prEN 50082 part 2, DIN 51233 of 11.91, VW 11.062 of 10.87
Observe national rules for prevention of accidents or VBG-4.
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1.1. Safety Hints
1.1.3. Specified normal Operation
The Flexometer has been designed to carry out tests of rubber samples following the standard ISO 4666/3.
Operate the Flexometer with the allowed power supply systems and under the allowed environmental conditions,
only! Adhere to the instructions given in this manual.
A start-up of the instrument (i.e. the specified normal operation) is allowed for compliance with the EMC directive
(89/336/EEC), only. The appliances meet the requirements of the EC Low Voltage Directive (73/23/EEC).
Attention! Inappropriate handling of the Flexometer may affect the functionality of the instrument or
cause severe damage to persons or property.
Page 8
UltiFlex_Manual_EN.doc
1. Introduction
1.2. Description of the DOLI Ultimate Compression Flexometer
1.2.1. The System
Fig. 1: Fully automated DOLI Ultimate Compression Flexometer
A Flexometer is used to measure the permanent deformation and the increase in temperature of cylindrical rubber
samples (following the standards ISO 4666/3, ASTM D 623 and BS 903, part A50).
For this purpose, the sample is loaded between two holders applying it with a constant load. Then, the sample is
cyclically upset along its axis.
The Ultimate Flexometer is a position- and load-controlled system, all parameters and controlling jobs of which
can be defined via software! The parameters can be changed for each single sample. The Flexometer works
fully automated and has a silo capacity of up to 56 samples.
UltiFlex_Manual_EN.doc
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1.2. Description of the DOLI Ultimate Compression Flexometer
1.2.2. The Actuator
Fig. 2: Functional principle of the Ultimate Flexometer with 3-phase-linear-motor (draft). a) Sample is not impinged with test load, b) sample is
impinged with test load. 1=3-phase-linear-motor, 2=puncture needle, 3=incremental transducer for the deformation, 4=lower holder, 5=thermo
sensor, 6=sample, 7=upper holder, 8=connection between the linear motor and the upper holder, 9=temperature chamber, 10=corpus of the
Flexometer.
The Ultimate Flexometer is driven by a 3-phase-linear-motor, showing very high dynamic characteristics: The
load is selected in a way, that the maximum Flexometer standard with 30Hz and 6.4mm stroke will be reached
(3.2mm amplitude). However, smaller and larger frequencies of up to 50Hz (1.0mm amplitude) are possible, also
(see chapter Vibration Absorbing System). Furthermore, compared with an eccentric or hydraulic drive, the linear
motor offers the following advantages:
• low power consumption
• no water cooling
• high degree of dynamics
• electronic control
• environmental friendly
• low noise
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UltiFlex_Manual_EN.doc
1. Introduction
1.2.2.1. Vibration Absorbing System
The Flexometer has been constructed for a frequency
of 30Hz. When working with lower frequencies, it may
start to vibrate. An absorbing system has been
developed especially for this reason, increasing the
spring resistance of the instrument and therefore
preventing it from vibrating.
1.2.3. The Sample
The Ultimate Flexometer handles samples with a
height of 25mm ±0.25mm and a diameter of 17.8mm
±0.15mm (standard Flexometer sample following DIN
ASTM 623; BS 903, part A50; ISO 4666/3; JIS K
6265) as well as samples with a diameter of 30.0mm
(standard sample following JIS K 6265).
1.2.3.1. Hardness of the sample
Fig. 3: Vibration Absorbing System.
1=rubber damper, 2=clamps.
The hardness of the sample must not exceed
82 Shore A.
Note: Having hardness degrees higher
than 82 Shore A, the sample may
start to jump or move from the
sample holder. In both cases, a
test according to regulations with
30Hz is not possible anymore.
1.2.3.2. The lower Holder
The lower holder can be replaced by a sample
changer serving both sizes, 17.8mm and 30.0mm
diameter.
1.2.3.3. The Input Station
With the Ultimate Flexometer, the silo known from the
Standard Flexometer has been replaced by a rotary
disk, being able to serve both sample sizes. With this
system, up to 12 samples can be loaded into the
magazine of the instrument at one time (see chapter
The Magazine, too). As a result, the problem of
samples sticking together as it used to occur
occasionally with the old silo shape has been
eliminated.
Fig. 4: Input Station of the Flexometer.
1=Temperature chamber (side wall), 2=input station
(with 9 samples), 3=samples, 4=Magazine lid.
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1.2. Description of the DOLI Ultimate Compression Flexometer
1.2.4. The Temperature Chamber
The test procedure can be executed inside a temperature chamber with selectable temperature.
The temperature chamber will be supplied with current, as soon as the main switch of the instrument is turned to
the ON-position. The temperature chamber of the fully automated Flexometer has a software-controlled rear door,
enabling the handlingarm to bring the sample into the chamber automatically. The stop positions door open and
door closed are reported to the software by limit switches.
Fig. 5: Front view of the Flexometer (trimmed area, cover removed).
1=main switch, 2=emergency-stop, 3=compressed-air display,
4=temperature chamber, 5=chamber display, 6=fan-switch
Fig. 6: Display and fan-switch of the temperature
chamber (draft). 1=current value, 2=set value,
3=AUTO-switch, 4=fan-switch
1.2.5. The Preheat Station
The sample can be preheated within the temperature
chamber for a selected period of time. In an automatic
test course, preheating and testing of samples can
overlap in time.
1.2.6. The Magazine
The magazine is organized like a high shelf storage
and offers room for up to 56 samples (optionally):
1 shelf with 11 sample storages and the height
measurement station, 3 shelves with 15 sample
storages each. The PC handles the whole magazine
administration and the handlingarm serves it
completely.
Fig. 7: Inner view of the magazine (from the top site). 1=handlingarm,
2=shelf (11 storages, one height measurement station), 3=optional
shelfs (15 storages each), 4=input station, 5=Temperature chamber.
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UltiFlex_Manual_EN.doc
1. Introduction
1.2.7. The Handlingarm System
A handlingarm carries out the whole sample handling, starting with fetching the sample from the input station up
to the output of the sample at the output station (optionally).
a)
b)
c)
Fig. 8: Handlingarm. a) Handlingarm inside the magazine, view from the right side. b) Handlingarm inside the magazine, view from the left
side. c) Function of the handlingarm (trimmed area): I. Lifter opens the sample storage by lifting the upper holder, II. Grips insert the sample
into the station. 1=grips, 2=lifter, 3=handlingarm, 4=sample, 5=upper holder of the sample storage.
UltiFlex_Manual_EN.doc
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1.2. Description of the DOLI Ultimate Compression Flexometer
1.2.8. The Height Measurement Station
The Flexometer automatically measures
the height of the sample before (h0) and
after the test (he) (having a standard
Flexometer test). In the meantime, the
sample stays inside the sample storage
with environmental temperature. This
guarantees exact and comparable results
for all samples. In case of height h0
exceeding the tolerances
(25.0mm ±0.25mm), the sample will
directly be brought to the output station
(garbage).
Fig. 9: Inner view of the magazine. 1=incremental gauge of 2, 2=height
measurement station, 3=sample storages, 4=input station,
5=Handlingarm.
1.2.9. The Puncture Needle
After the end of the test, a pneumatically controlled puncture needle punctures inside the sample and measures
the centre temperature of it. Optionally, a linear controlled needle can be used to stay inside the sample (at the
middle height of it) during the whole test course.
1.2.10. The Output Station (Garbage)
After the test course has finished, the samples can be given out in batches or as single samples.
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UltiFlex_Manual_EN.doc
1. Introduction
1.3. Specifications
Compressed-air supply: 6 bar, 1l/min
Inner diameter of the hose of the instrument: 6mm
Attention! The compressed-air must be absolutely clean and free of water and oil!
Otherwhise, a severe damage of the Flexometer may be caused.
Power supply:
TN-S Δ400VAC, 50Hz, 1.5kW
(for Canada, USA:
TN-S Δ200...210VAC, 60Hz, 1.5kW ; UN 120VAC, 60Hz)
a)
b)
Fig. 10: Voltage supply connection plan (draft). a) World, b) Canada/USA
UltiFlex_Manual_EN.doc
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1.3. Specifications
Dimensions:
a)
b)
Fig. 11: Dimensions of the Ultimate Flexometer (draft). a) View from the top site: Recommended space, b) View from the front site: Height.
Delivery Data
Packing:
Wooden box on euro pallet
Size
(incl. Box and pallet) W 120cm, D 80cm, H 193cm
Weight:
net 435kg, incl. packing 485kg
Environmental Conditions:
Temperature:
+5°C to +40°C
Humidity:
max. 50% at +40°C
max. 90% at +20°C
Frost:
The instrument must not be exposed to frost!
If possible, operate the instrument in an air conditioned lab.
Sample
Material:
Rubber
Size:
Height 25.0mm ±0.25mm, diameter 17,8mm ±0.15mm or 30.0mm ±0.15mm
Hardness
max. 82 Shore A
1.4. Online - Help
The Online help system needs the Microsoft Internet Explorer Version 5.0 or higher and the operating system
Microsoft Windows XP or higher.
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UltiFlex_Manual_EN.doc
2. Operation
2. OPERATION
2.1. Security
In order to protect man and machine, the Ultimate Flexometer has security sensors, causing a shut-off of the
instrument or single subunits in case of doors or coverings being opened during the test course.
Note: The security shut-off causes a loss of the actual test data!
2.1.1. Sensors of the Temperature Chamber
2.1.1.1. Front Door
Fig. 12: Front door of the temperature chamber, open. 1=security sensors.
2.1.1.2. Rear Door
Fig. 13: Temperature chamber, rear view. 1=temperature chamber , 2=rear door,
3=security sensors for the rear door, 4=message sensor for the rear door.
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2.1. Security
2.1.1.3. Position of the Temperature Chamber
Fig. 14: Test area, temperature chamber tipped. 1=security sensors, 2=preheat station, 3=test area.
2.1.2. Sensors of the Magazine
Fig. 15: Flexometer (front view, trimmed area). 1=lid, 2=fan, 3=security sensors for the lid, 4=temperature chamber.
Furthermore, the instrument has security sensors for the coverings on the right rear and left side.
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UltiFlex_Manual_EN.doc
2. Operation
2.1.3. Overview
Table 2 : Overview of the reactions of the Flexometer to the activation of the safety sensors.
Action
Feedback of the Instrument
Temperature chamber: front door opens
Linear motor shuts off
Upper holder stops
Temperature chamber: rear door opens
Linear motor shuts off
Upper holder stops
Handlingarm stops
Temperature chamber tips
Linear motor shuts off
Upper holder stops
Handlingarm stops
Magazine lid opens
Handlingarm stops
Magazine lid opens and rear door opens
Linear motor shuts off
Upper holder stops
Handlingarm stops
Temperature chamber: front door and rear door opens
Linear motor shuts off
Upper holder stops
Handlingarm stops
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2.2. Flexometer
2.2. Flexometer
2.2.1. Switch-On
1. The main switch (see Fig. 16, no 1) has to
be turned to the ON-position. → The
initialisation of the hardware starts. It takes
approx. 1 minute. Now, the temperature
chamber is supplied with current.
2. Use the fan-switch (no 6) at the
temperature chamber (no 4) to turn on the
heater and the fan. Now, the temperature
chamber can be controlled completely via
software. The automatic mode (display
AUTO in the display field, no 5) has been
preset. If not (mode Manual, display MAN),
the mode has to be changed to Automatic
with the Auto-switch (below the display). →
The display REM will blink (remote control)
to show, that communication between
temperature chamber and PC is active.
Fig. 16: Front view of the Flexometer (trimmed area, covering
removed). 1=main switch, 2=emergency-stop, 3=Compressed-air
display, 4=temperature chamber , 5=chamber display, 6=fan-switch
3. Turn the compressed-air valve in the back
of the Flexometer (see Fig. 17, no 1) into
flow-through position (longitudinal to the
hose).
4. Now, start the Flexometer software
DOLIFlex. → The Flexometer carries out
the needed reference drives by itself.
Fig. 17: Compressed-air unit and outlet box in the back of the
instrument. 1=compressed-air valve, 2=compressed-air setting valve,
3=compressed-air display, 4=water separator, 5=water separator
valve, 6=maintenance access for the filter mat.
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UltiFlex_Manual_EN.doc
2. Operation
2.3. Program
2.3.1. Start and Control
2.3.1.1. Start of the Program
Main Menu Window
After the start of the DOLIFlex-Software, the main menu window opens:
Fig. 18: Main menu window.1= datagrid for sample data; 2= graphic section with the scalings for the following graphs: 2a= Deformation, 2b=
Contact temperature, 2c= E’, 2d= tan d, 2e= E*, 2f= E’’(2c to 2f = viscoelastic properties); 3= Numerical display section; 4= Function fields for
4a= sorting of the sample data in the datagrid, 4b= loading of the samples, 4c= administration of the sample data, 4d= control of the test
procedure; 5= Main menu line.
The main menu window contains several sections, the datagrid, the graphics section, the “digital display” section
and the “function field” section. Please see the paragraphs below for further explanation.
Datagrid
On the left side, there is the datagrid for the administration of defined sample data. Depending on the capacity of
the Flexometer, this grid can contain up to 56 records. The states of the single samples are shown by the colour
markings (see chapter Legend, also). Sorting of the records happens following the entry order, the youngest of
which standing on bottom of the list, the oldest one on top. Processing of the samples happens from the top to the
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2.3. Program
bottom, meaning that the oldest sample will be processed first. The function fields above the datagrid (4a) are
used to change the order of processing (see chapter Control with the Function Fields, also).
Tip:
A single file can be marked by clicking on it, more than one than one file at the same time
can be marked by “CTRL + mouse click”.
Graphic Section
The right side of the dialog window shows the graphic section for the display of the graphs for “Deformation" and
"Contact temperature” (at the lower holder) in relation to the test time. Furthermore, the graphs for the viscoelastic
properties of the sample are shown: E*, tan d, E', E''. The colours of the graphs do correspond to the related
scalings in order to increase the clearness of the diagram.
During the test course, the graphs will be displayed in real-time.
Digital Display Section
Fig. 19: Digital Display Section.
The digital display section shows the digital values for:
•
Time [hh:mm:ss]
This display shows the actual test time.
•
Contact temp. [°C]
This display shows the contact temperature at the lower holder.
•
Deformation [%]
This display shows the actual deformation of the sample
in % of the height h0.
•
Prestress/Preload [N]
This display shows the prestress / preload, the sample is impinged with.
•
tan D
Dissipation factor (tangent of loss angle)
•
E* [MPa]
Complex elastic modulus
•
E' [MPa]
Reversible resilience (stored energy)
•
E'' [MPa]
Irreversible loss of energy
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2. Operation
Function Fields
Fig. 20: Function fields 4a= for the datagrid, 4b= to load/unload samples, 4c= the administration of the sample data, 4d= the control of the test
procedure.
The function fields are used to change the order of the sample records in the datagrid (4a), to load or unload
samples (4b), to administrate sample data (4c) and to control the test course of the DOLI Flexometer (4d). For
further explanation, please see chapter Control with the Function Fields).
Main Menu Line
Fig. 21: Main menu line.
The main menu line contains the menus File, Flexometer, Sample and ? (Help). For further explanation, see
chapter Control with the Main Menu Line).
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2.3. Program
2.3.1.2. Control with the Function Fields
There are different ways to control the DOLIFlex-Software: with the function fields, with the popup-menu or with
the main menu line. This section describes the function fields.
Function fields for the datagrid
A data file has to be marked before editing:
Move up sample in the grid
The chosen record will move upwards for one position.
Move down sample in the grid
The chosen record will move downwards one position
Move sample in the grid to the selected position
The chosen record will move to a defined position: A dialog window (Go to position) opens,
where the new position can be entered into.
Function fields to load/unload samples
Rotate wheel
Clicking on this function field will cause the input station to turn itself for one position in order to
transport the sample into the working area of the handlingarm. Clicking on function field Load
will then cause the handlingarm to fetch it and bring it into the magazine.
Load selected samples
This opens the dialog window Samples. The shown sample will be taken from the input station
and loaded into the sample storage. Clicking on STOP will interrupt the loading.
Unload selected samples
The marked sample will be fetched from the sample storage and moved to the output station.
Clicking on STOP will interrupt this action.
Function fields for the administration of the sample data
New
Opens the window Parameter for: for creating a new sample record.
Tip: If there is a record with similar data inside the datagrid already, mark this one
and then click on New. The dialog window will contain all data of the marked
record. This way, similar data must only be edited (and not entered
completely new).
Delete
Deletes the marked record.
Open Archive
Opens the dialog window Archive containing the records of samples, that have been tested
and moved to the archive.
Function fields for the control of the test procedure
Start
The next Flexometer test will be started, i.e. the not tested sample standing on top
of the list.
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2. Operation
Pause
The Flexometer stops after the end of the actual running test. All samples being in
the actual test course will be tested and the data will be stored. Then, the
Flexometer pauses. In order to start with the next test course, the function field
Start has to be activated again.
Stop
The running test will be stopped immediately, i.e. the preheat station, the test area
and the height measurement station will stop and their samples cannot be tested
furthermore. This is valid for the samples being in the sample storages for cooling,
also. They will not be height measured anymore. (The handlingarm finishes its
movement, inserts the sample into the station and stops.) All data detected so far
will be stored. Clicking Start will cause the instrument to start with a new sample.
2.3.1.3. Control with the Popup-Menu
This menu can be opened by clicking the right mouse key in the designated dialog window or section.
Popup-Menu for the datagrid (main menu window)
New
creates a new sample record
Delete
deletes the selected sample record
Pause
stops the Flexometer after the end of the running test
Select all
selects all records in the grid
Fig. 22: Popup-menu for the datagrid of the main menu window.
Popup-Menu for the graphics section (main menu window)
Fig. 23: Popup-menu for the graphics section of the main menu window
Clicking the right mouse key in the graphics section of the main menu window opens the dialog window Scale
options. Here, you can define the scalings for the single axes (in the fields Min and Max), display grids for the
single values (checkmark box Grid) and change the background colour of the online graphic (selection field
Background colour of the online graphic).
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Page 25
2.3. Program
2.3.1.4. Control with the Main Menu Line
The DOLIFlex software can be controlled via the main menu line in the main menu window, also.
Fig. 24: Main menu line.
File
Clicking on the menu item File, the following choice will appear:
Settings
opens the dialog window Ultimate Flexometer
Options (password-protected)
Move Archive
Opens the dialog window Move archive, which can be
used to select a new destination for the archive.
Exit
Closes the DOLIFlex software.
Fig. 25: Menu File
Flexometer
Clicking on the menu item Flexometer, the following choice will appear:
Fig. 26: Menu Flexometer
Machine
incl. submenu
Chamber
incl. submenu
Power on
Switches on the EDC
Power off
Switches off the EDC
Debug messages Opens the window Debug messages containing debug
messages from the EDC.
The submenu Machine offers the following choice:
Supervisor
Fig. 27: Submenu Machine
Opens the dialog window Supervisor
Note: This dialog window is for the supervisor
and the DOLI-Service only and
therefore it is protected by a password!
Signals
Opens the dialog window Signals
See chapter Status Information for further details.
The submenu Chamber offers the following choice:
Fig. 28: Submenu Chamber
Page 26
Preheat
starts preheating sequence in the temperature chamber
with the set temperature
Off
temperature chamber control will be shut off
UltiFlex_Manual_EN.doc
2. Operation
Sample
Clicking on the menu item Sample, the following choice will appear:
New
Creates a new sample record
Delete
Deletes the selected sample record
Archive
Opens the dialog window Archive containing records
of tested samples.
Load sample
opens the dialog window Samples. The selected
sample will be taken from the input station and loaded
into the sample storage.
Unload sample
The marked sample will be fetched from the sample
storage and moved to the output station.
Rotate wheel
the input station turns itself for one position in order to
transport the sample into the working area of the
handlingarm.
Move up
The chosen record will move upwards for one position.
Move down
The chosen record will move downwards for one
position.
Move to position
The chosen record will move to a defined position: A
dialog window (Go to position) opens, where the new
position can be entered.
Fig. 29: Menu Sample
? (Help)
Clicking on the menu item ? (Help), the following choice will appear:
Contents & Index
calls up the online-help
Legend
opens the dialog window Legend; see
chapter Legend, also.
Test specification
opens the dialog window
Test specification,
see chapter Security, also.
Testing machine information
opens the dialog window
Testing machine information,
see chapter Security, also.
Testing machine protocol
opens the dialog window
Testing machine protocol,
see chapter Security, also.
About...
general information about the DOLIFlex
software, the instrument and DOLI.
Fig. 30: Menu ? (Help)
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2.3. Program
2.3.2. Flexometer Settings
Use the path File → Settings (incl. security check) to open the dialog window Ultimate Flexometer - Options.
It is divided into 7 submenus:
Fig. 31: Flags of the dialog window Ultimate Flexometer - Options.
Note: Each change of the options needs to be followed by a new program start!!
2.3.2.1. Hardware
Options
Customer-ID: Field for customized
names (no effect on the test)
Holder cooling time: Here, insert the
wished holder cooling time.
Note: Keeping a definite cooling
time at the end of the test
(normally 5 minutes) will
prevent the next sample
from an unintended warm
up by the lower holder
(which may still be warm
from the previous test).
Flexometer
Fig. 32: Window Hardware.
Calculation mode: There are two
different ways to calculate the
deformation in %. Mode 0 is the standard
mode normally used for flexometers.
This mode has been preset and should
be used for your tests. (Mode 1 is for
future test types, only).
Manual Flexometer ?: In case of a dysfunction of the handlingarm, this option can be activated: Despite the
dysfunction, the Flexometer will continue in the manual mode without the handlingarm. (The configuration has
been preset by the DOLI service).
Samples
This function block is for entering the sample height and the permissible variations.
Sample diameter: Furthermore, the diameter can be entered: 17.8mm (standard) or 30.0mm (optional).
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2. Operation
2.3.2.2. File Management
Data directory
The path leading to the storage directory for
sample data is entered here.
Click on the function field
needed dialog window.
to open the
Fig. 33: Window Files.
2.3.2.3. Filename
Unlock filename for input: This enables
the user to define the filename in the
Parameter window freely (see chapter Input
of the Sample Parameters, also).
Filename
Up to 3 fields can be chosen to compose
the name of the result file (ASCII-Format)
out of.
Fig. 34: Window Filename.
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2.3. Program
2.3.2.4. Language/Print/Formula
Language
Display language: represents the language
of the Flexometer software. All dialog
windows and printouts will appear in the
chosen language.
The following languages are available:
1. German
2. English
Print
Set a checkmark if you want to have the
possibility to print the results.
Formula generator
Fig. 35: Window Language/File/Formula.
Clicking on the function field Result
parameters will open a dialog window for
entering different formulas for further
results. These results will show up in the
dialog window Tested Samples as well as
in the printouts.
Up to four formulas can be entered in order
to get additional results out of the tests. The
results will show up on the printouts and on
the screen.
Fig. 36: Window Formula generator.
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2. Operation
2.3.2.5. Display
Parameters
This submenu offers the possibility to
change the names of single program
parameters.
Fig. 37: Window Display.
2.3.2.6. Graphic
Time scale
There are two different scaling types.
Fixed scale: No further settings are
needed. The scale depends on the actual
test time.
Variable scale: The user is free to choose
scalings according to his needs (possible
units: hours, minutes, seconds).
Scale for deformation, holder temp. etc.
User-release for scale options: The user
has the possibility to re-scale the onlinegraphic per right mouse-click.
The following options define the look of the
graphics: grids for the single axes, minimum
and maximum values for the scalings.
Fig. 38: Window Graphic.
The settings chosen in this submenu will
automatically be taken as base for a new
parameter file (see chapter Input of the
Sample Parameters, also).
Standard: This function field returns all
settings to the preset standard values.
Background colour of the online graphic
Here, it is possible to change the
background colour of the online graphic.
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2.3. Program
2.3.2.7. Security
Change password
Activating the function field Change
password opens a dialog window, enabling
the user to define or change a password (no
password preset).
Machine information
This function block is for creating the dialog
windows in the submenu ? (Help) (main
menu window, see chapter Control with the
Main Menu Line, also).
Special
Note: This function is for the DOLI
service only and therefore,
protected by a password.
Fig. 39: Window Security.
Before defining a new password, the old
one has to be entered!
Fig. 40: Window Change password.
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2. Operation
2.3.3. Sample Parameters
2.3.3.1. Input of the sample parameters
There are different ways to open the dialog window Parameter for... A differentiation has to be made, whether
files have to be edited or newly entered.
Note: However, the following is valid for each case: If a file is selected, it will be opened as pattern.
New
Click on icon New (alternatives: open the popup menu in the datagrid (right mouse key) and click on icon New or
open the menu Sample → New in the main menu line). The window Parameter for.. opens with a white frame
surrounding the input area (see picture below).
Edit an existing file
Double click on a file. The window Parameter for.. opens with a yellow frame surrounding the input area.
Fig. 41: Window “Parameter for..” for the parameter entry.
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2.3. Program
Testing time
Input of the testing time in hours and minutes (max. possible: 999 hours and 59 minutes)
Cooling time
Input of the cooling time of tested samples in hours and minutes (max. possible: 99 hours and 59 minutes).
Chamber
Input of the temperature for the temperature chamber.
Note: An entry of 0ºC means no preheat of the sample before the test. However, with this entry, the
preheat time should be set to 0 also, otherwise the handling arm will insert the sample into
the preheat station.
Preheat time
Input of the preheat time in hours and minutes (max. possible: 99 hours and 59 minutes)
Maximal Deformation
Input of the max. deformation in percent.
Note: The input must be between -50% and 0%. For reasons of hardware, a deformation higher than
-55% is not possible. It would definitely damage the instrument.
Filename
Input of the filename for this parameter file. In case of an activation of the automatic name composition
(Flexometer Settings → Filename), the software automatically enters the name (composed out of up to three
parameter fields; see chapter Filename, also).
Note: However, special characters at the beginning of the filename will definitely cause problems
with the file management in Windows. If the filename is entered manually, any kind of file
extension must not be entered, as the program adds them automatically.
Move control (control mode)
This field is for choosing the control mode, the instrument should run with. The mode Deformation has been
preset and should not be changed.
Test procedure
This is the field to choose the wished test type. Possible test types are:
Flextest: standard Flexometer test
Blowout deformation
Blowout temperature
For descriptions, see chapter General Test Description.
Blowout factor
This field is relevant only for Blowout tests (see chapter Blowouttest). The factor 3 has been preset, it can be
changed if necessary.
Stroke
The stroke has been preset to 4.45mm (standard value) but can be changed.
Attention:
By means of hardware reasons, it has to be within the range 1.0mm and 7.0mm.
Prestress/Preload
The load, the sample is tested with, has been preset to 1MPa but can be changed.
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2. Operation
Frequency
The testing frequency has been preset to 30Hz but can be changed. For lower frequencies, the software
automatically activates the “vibration absorbing system” (see chapter Description of the DOLI Ultimate
Compression Flexometer).
Attention:
By means of hardware reasons, the frequency has to be within the range given behind
the field.
Sample height / Sample diameter
This field shows the entries already made in Flexometer Settings → Hardware (see previous chapter, also).
Note: In case of the existence of a height measurement station, the software enters the detected
height into the first field and deactivates it.
Axis scale
The axis scalings have already been defined in Flexometer Settings → Graphic. This field offers the possibility
to change the scalings due to the experiences of the user (recommendations for standard samples: deformation
10% to -50%, holder temperature 50ºC to 150ºC).
Tip:
For means of graphics comparability, it is recommended to keep the chosen scaling for all
tests.
Compound to Comment
These fields are pure comment fields without any influence to the test. (Having activated the automatic name
composition, the file name will be composed out of the chosen parameter fields; see chapter Filename, also).
Results after
If you want to have intermediate results after a certain time, enter the time here and the software will store the
results after this time.
Graphic print
If the option Print has been released in Flexometer-Setting → Language/Print/Formula, a checkmark at this
place will enable you to printout the results.
Unload automatic
If this function is activated, the sample will be moved to the output station after the end of the test course.
Otherwise, it will be moved to the sample storage.
Compression set (1hrs)
Choose, whether the sample should be height measured again after one hour cooling time in order to calculate
the compression set after 1 hour.
Show tangent Delta
Choose, whether tan D should be displayed in the graphics or not.
Show E*
Choose, whether E* should be displayed in the graphics or not.
Show E’
Choose, whether E’ should be displayed in the graphics or not.
Show E’’
Choose, whether E’’ should be displayed in the graphics or not.
Sample count
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Page 35
2.3. Program
Enter the number of samples that are to be tested with these parameters.
Note: This option is possible for the creation of a new file, only.
Function fields
Note: If you opened a new file, the function fields Open, Save and Help are active. If you opened an
existing file, the function fields Save, Help, Back and Next are active.
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Open
This function field opens a dialog window where you can search and
import existing flexometer files with.
Save
This function field opens a dialog window used for storing files.
Help
This function field opens the online-help of the flexometer software
DOLIFlex.
Back
With this function field, you can change to the input mask of the
previous file in the datagrid.
Next
With this function field, you can change to the input mask of the next
file in the datagrid.
UltiFlex_Manual_EN.doc
2. Operation
2.3.4. Status Information
2.3.4.1. Supervisor Menu
Via the menu Flexometer → Machine → Supervisor (and a password check), the window Supervisor opens.
Note: This mode is for the supervisor and the DOLI Service, only!! It is used for installation and
checking of the hardware functionality. For this reason, it is protected by a password.
Fig. 42: Supervisor-window. 1=digital displays of the measurement values, 2=states of the digital inputs, 3=states of the digital outputs,
4=states of the limit switches, 5=states of the control, 6=states of the EDC, 7= display of the running time of the instrument, 8= function blocks
for the control of hardware components.
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2.3. Program
2.3.4.2. Signals Menu
Via the menu Flexometer → Machine → Signals, the window Signals opens. It is consistent to the supervisor
window in inactive mode.
Fig. 43: Window Signals.
The inactive mode is accessible for each user and is for information, only. All function blocks and fields are
inactive, but the digital displays and the checkmark boxes are active and do show the actual state of the
Flexometer.
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2. Operation
2.3.4.3. EDC - Messages
You can open the window Debug Messages via menu Flexometer → Debug Messages.
Fig. 44: Debug Messages.
These messages help to precise states and to recognize possible errors more easily.
The massages will not only be displayed by the software but also stored in a logfile on the hard disk (FlexLog1.txt
and FlexLog2.txt).
Basically, the messages will be stored into the file FlexLog1.txt. If the data amount extends a certain degree, all
data will be stored into the second file and the first one will automatically be used to store new data.
This dialog window can be opened with CTRL+M, also.
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2.3. Program
2.3.4.4. Legend
Via the menu ? (Help) → Legend a legend will open explaining the colour code for the state of the single
samples.
Fig. 45: Legend for the state of the samples.
2.3.4.5. Invalid Samples
In case of the appearance of this dialog window, errors have been caused during a test course. The Flexometer is
unable to handle the shown samples. For this reason, they must be removed manually from the system.
Fig. 46: Dialog window Invalid samples.
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3. Test
3. TEST
3.1. General Test Description
A Flexometer is used to measure the permanent deformation and increase in temperature of cylindrical rubber
samples. For this purpose, a sample is loaded between two holders applying it with a constant load. Then the
sample is cyclically upset along its axis.
During the test course, the following values will be measured:
1. Test time
2. Contact temperature at the lower holder
3. Deformation of the sample
4. Prestress/preload
The curves
1. Contact temperature at the lower holder
2. Deformation of the sample
in relation to the test time will be displayed in real time.
Optionally, it is possible to detect viscoelastic properties of the sample (see chapter Viscoelastic Properties).
Then, the curves for
1. tanD
2. E*
3. E’
4. E’’
will be displayed in relation to the test time, too.
An incremental encoder measures the deformation in percent (%) of the initial height h0 of the sample, i.e. 100%
correspond to a change in height of 25mm. Immediately after the termination of the test (and if needed one hour
after the test) a puncture needle injects into the sample, measuring the centre temperature of the same. After the
test, the measurement data can be printed.
The following sections do explain different test types.
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3.2. Flextest
3.2. Flextest
The standard Flexometer test. Test course with all possible hardware options:
1. Entry of the sample data by the user.
2. Filling up the input station (rotary disk with 12 sample places) by the user.
3. Loading the sample storages (main menu window, function field Load). Handlingarm fetches samples
from the input station and inserts them into the sample storages.
4. Start of the test (main menu window, function field Start).
5. Insertion of the sample into the height measurement station (by the handlingarm) and measuring of the height
(with option height measurement station, only) - if necessary, rejection of sample.
6. Insertion of sample into the preheat station and preheat of the sample (with option preheat station, only).
7. Insertion of sample into the test area. Linear motor will be activated, pneumatic cylinder (for the parking
position of the crosshead for the upper holder) will be deactivated.
8. Linear motor drives crosshead to a clamp load of 5N for means of clamping the sample (Handlingarm releases
the sample and moves to parking position).
9. Dynamic test, controlled by the linear motor. Permanent detection of the values "Contact temperature at the
lower holder", "Deformation" and "Prestress/Preload" (displays and graphics in the main menu window).
10. Test end happens at the end of the given test time, at exceeding of the maximum allowed deformation or at
abortion by the user. Upper holder keeps its position.
11. Detection of the center temperature of the sample by the puncture needle. (Puncture needle punctures into the
center of the sample, measures the temperature and comes out again. The software stores the detected
temperature maximum as center temperature.)
12. Linear motor drives the crosshead back to the clamp load of 5N.
13. Handlingarm fetches the sample, linear motor drives the crosshead back to parking position, pneumatic
cylinder will be activated, linear motor will be activated (pneumatic cylinder keeps the crosshead in parking
position).
14.Insertion of sample into the height measurement station and measuring of height; calculation of deformation
out of the height (with option height measurement station, only).
15. Insertion of sample into the sample storage for the given cooling time (with option magazine, only).
16.Once again: Insertion of sample into the height measurement station (e.g. after one hour) and measuring of
height; calculation of static deformation out of the height (with option height measurement station, only)
17.Insertion of sample into the sample storage or the output station.
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3. Test
3.3. Blowout Test Deformation/Temperature
During the Blowout Test, the sample will be impinged with enough energy to cause a gasification of different
components of the rubber compound inside the sample. The event of the escape of gas out of the sample is
called “Blowout”.
The software uses the acceleration graph for recognizing the Blowout. This curve represents the first
differentiation of the deformation- and/or the temperature graph:
Fig. 47: Acceleration graph of the Blowout Test (draft).
After a response time of 20 seconds the software measures the tolerance band (=Delta) of the graph for a period
of 10 seconds and normalizes its width to the value 1.
The Blowout causes a strong change of acceleration. Therefore, the graph obviously deviates from Delta. At the
moment, this deviation reaches or exceeds factor 3 (this factor is an empirical value for standard samples) (+/Delta x Factor), a Blowout will be recognized and the test stops.
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Page 43
3.3. Blowout Test Deformation/Temperature
3.4. Viscoelastic Properties
In addition to the standard flexometer test results, the DOLI Ultimate Flexometer is able to detect the viscoelastic
propertiesof the sample, also.
If you want these results to be detected, you have to activate the related checkmark boxes when entering the
sample parameters in the window Parameter for… (see chapter Input of the sample parameters).
The following properties are detected:
•
tan D
Dissipation factor (tangent of loss angle)
•
E* [MPa]
Complex elastic modulus
•
E' [MPa]
Reversible resilience (stored energy)
•
E'' [MPa]
Irreversible loss of energy
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4. Results
4. RESULTS
As soon as a sample test has been finished, the whole file will disappear from the main menu window. However,
you can access the data of tested samples via the function field Open archive (main menu window) or via menu
Sample → Archive. As a result, the window Archive will open.
4.1. Results Overview
The window Archive contains the data records of the tested samples as well as the related graphics.
Fig. 48: Dialog window Archive containing the records and graphs of the tested samples. 1= datagrid, 2= graphics section,
3= checkmark boxes for the graphics section, 4= field “Offset for X-axis”, 5= function keys.
It consists of the datagrid on the left side (no 1), the graphics section on the right side (no 2). The top region
consists of the checkmark boxes on top of the graphics section (no 3), the field Offset for X-axis (no 4) in the
middle and the function fields on the upper left side (no 5).
The window offers the following options:
Datagrid
Choose a record
In the datagrid, you can choose a sample record by clicking on it with the left mouse key. As a result, this file will
be highlighted in blue and the related graphics will be shown in the graphics section on the right.
Open the record data
Double clicking on a record in the datagrid with the left mouse key will open the window Results for.. (see
chapter Single Results) containing all entered data and results of this record.
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4.1. Results Overview
Multichart display
You can mark up to 5 records by pressing the CTRL key (or SHIFT key) and clicking on the wanted records. The
records will be highlighted in different colours, while the related graphs will appear in the graphics section in
identical colours.
Graphics section and checkmark boxes
Zoom
Move a frame around the desired field having the left mouse key pressed and then release the mouse key.
Undo zoom
Keep the right mouse key pressed and draw a frame from the lower right to the upper left somewhere in the
graphic. Then release the mouse key.
Scroll
Move the cursor with pressed right mouse button
Display or remove graphs
Set/remove checkmarks at the boxes, if you want to display or remove graphs.
Move the X-axis
Entering a value on the field Offset for X-Axis moves the graphic in X direction.
Function fields
The function fields offer the following functions:
Page 46
Exit
Closes the window.
Open
Opens a dialog window for the search and upload of sample records.
Delete
Deletes the marked sample record.
Print
Prints the sample record on a printer.
Preview
Shows a print preview of the results.
UltiFlex_Manual_EN.doc
4. Results
4.2. Single Results
Fig. 49: Window Results for…
Double clicking on a sample record in the window Archive opens the window Results for... It contains the
entered sample data (flag Sample data) and the results (flag Results) of this sample record. Click on the related
flag to change the display of the wished list.
Just like the window Parameter for.. , i.e. the sample input window, (see chapter Input of the sample
parameters), this window is surrounded by a coloured frame. The colour shows the status of the sample. The
colours are explained in the window Legend (menu ?(Help) → Legend, see chapter Legend, also).
Furthermore, the field Test end reason shows the reason for the test end and the related colour, too.
Function fields
The function fields Exit, Print and Preview have the same functions as with the Archive window.
Fig. 50: Arrow function fields.
With the arrow function fields, you can change to the Results for.. window of the other sample records (first,
previous, next, last record). As a result, the Archive window shows the graphs of the selected record.
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Page 47
4.3. Printouts
4.3. Printouts
The printout contains the sample data, the graphics and the results as values.
Fig. 51: Result Printout.
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4. Results
4.4. Explanation of the Results
Table 3 : Explanation of the test results
Result
Test end reason
Explanation
Reason for test end (abortion, regular test end, etc.)
Gauge
Gauge start
Gauge end hot
Gauge end cold
Gauge after 1 hrs.
sample height before test, I0 in [mm]
sample height at test end in [mm]
sample height after cooling time in [mm]
sample height after 1 hour of cooling time in [mm]
Temperature
Inner temperature
Room temp. start
Room temp. end
Contact temp. start
Contact temp. end
dT
dT 25
Center temperature of the sample at test end in [°C]
Room temperature at test start in [°C]
Room temperature at test end in [°C]
Temperature of the lower holder at test start in [°C]
Temperature of the lower holder at test end in [°C]
Temperature difference at the holder after test end:
dT = Ttestend - Tstart in °C
Temperature difference at the holder after 25 minutes:
dT25 = T25minutes - Tstart in °C
Fatigue life
Creep
Number of strokes at test end
Ft = 100% x ( h6 - ht ) / h0
Testing time
h6 = deformation after 6 seconds
h0 = deformation after start
ht = deformation after test end
Testing time
Formula
Deformation
Compression set hot
Compression set cold
Compression set 1 hrs.
Formulas and results as defined in Flexometer Settings →
Language/Print/Formula.
Static compression
Flexing compression start
Flexing compression end
Deformation of the sample after test end in %
Deformation of the sample after cooling time in %
Input parameter: "Compression set 1 hrs.".
Deformation of the sample after 1 hour of cooling time in %
Static deformation of the sample in % (measured in the testing area)
Dynamic deformation after 5 seconds of testing time in %
Dynamic deformation after test end in %
Tan D
Tan D start
Dissipation factor (tangent of loss angle) at start of the test
Tan D end
Dissipation factor (tangent of loss angle) at end of the test
E* start
E* end
E’ start
E’ end
Complex elastic modulus at start of the test
Complex elastic modulus at end of the test
Reversible resilience (stored energy) at start of the test
Reversible resilience (stored energy) at end of the test
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4.4. Explanation of the results
E’’ start
E’’ end
Irreversible loss of energy at start of the test
Irreversible loss of energy at end of the test
Results after
Deformation
Contact temp.
Tan D
E*
E’
E’’
Deformation of the sample after the given time.
Temperature of the lower holder after the given time.
Value for tangent Delta after the given time.
Value for E* after the given time.
Value for E’ after the given time.
Value for E’’ after the given time.
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4. Results
5. MAINTENANCE
5.1. Maintaining the Instrument
5.1.1. Draining of the Compressed-air System
Fig. 52: Compressed-air unit and outlet box in the back of the instrument. 1=compressed-air valve,
2=compressed-air setting valve, 3=compressed-air display, 4=water separator, 5=water separator valve,
6=maintenance access for the filter mat.
The compressed-air system of the Flexometer has equipment to separate the water from the compressed air.
This equipment must be emptied:
1. The water separator has to be emptied once a week by pressing the water separator valve (no 5 in picture
above).
2. Below the compressed-air unit, a filter mat can be found (behind the maintenance access, no 6). This mat
must be changed every three months.
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5.1. Maintaining the instrument
5.1.2. Changing the lower holder
1. Tip the temperature chamber.
2. Remove the covering of the maintenance area.
3. Use pliers to press the end of the manacle ring
(see Fig. 53, no 3) and draw off the holder
together with the manacle ring.
4. In the maintenance area, the holder has cable
connections (no 7) to the instrument. Loosen
the binders.
5. Fix the binders of the new holder:
Attention: red to red, blue to blue.
6. Insert the new holder and fix it with the manacle
ring.
Fig. 53: Test area (A) and maintenance area below it (B) (temperature
chamber tipped, covering removed). 1=crosshead for the upper
holder, 2=upper holder, 3=lower holder with manacle ring,
4=crosshead for the lower holder, 5=cylinder with puncture needle,
6=load cell, 7=wire of the lower holder.
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4. Results
5.1.3. Changing the puncture needle
1. Tip the temperature chamber.
2. Remove the covering of the
maintenance area.
3. Loosen the binders for the puncture
needle (see Fig. 54, no 4).
4. Hold the fixing nut on top of the
crosshead (no 5) while loosening the
nut below it (no 3).
Attention: You must not damage
the loadcell!
5. Draw off the lower holder (see Fig. 55,
no 5) incl. its mounting to the top.
6. Carefully draw off the cylinder (see
Fig. 54, no 1) to the front.
Fig. 54: Maintenance area. 1=cylinder with puncture needle, 2=puncture
needle, 3=fixing nuts for the cylinde , 4=cable connections of the puncture
needle, 5=crosshead for the lower holder.
Fig. 55: Test area with preheat station (temperature chamber tipped).
1=preheat station, 2=sample, 3=crosshead, 4=upper holder, 5=lower
holder with manacle ring
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5.1. Maintaining the instrument
7. Unscrew the screw (see Fig. 56, no 3) at
the cylinder (no 2) and pull out the needle
(no 1).
8. Push the new needle into the cylinder,
close the screw and re-insert it into the
instrument (from the bottom).
9. Re-insert the lower holder.
10. Fix the nuts and re-connect the cable
binders:
a)
Attention:red to red, blue to blue!
b)
c)
Fig. 56: Changing the puncture needle. a) Cylinder dismounted.
b) Screw opened. c) Puncture needle pulled out.
1=puncture needle, 2=cylinder, 3=screw
5.1.4. Cleaning the Stations
In order to prevent the samples from sticking to the stations, the latter ones must be cleaned every 6 months. This
concerns the following parts: upper and lower holder of the sample storages, upper holder of the test area, the
preheat station, the silos, the output station.
The parts have to be cleaned with silicon oil. In case of the use of another mild cleaner, the parts must be
covered with silicon oil or talcum powder.
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4. Results
5.2. Spare Parts
Table 4 : Spare parts for the instrument.
Description
Package size
Order No.
lower holder, 17.8mm
1
FLX 1466
lower holder, 30.0mm
1
FLX 1467
lower holder, vario (for 17.8mm and 30mm)
1
FLX 1468
puncture needle
1
FLX 1469
filter mat
5
FLX 1470
compression tool
1
FLX 1462
manacle ring
1
FLX 4322
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6. APPENDIX
6.1. Where is the Sample?
The software uses a code of three numbers to inform the user about the position of a sample within the
Flexometer.
Table 5 : Numbering of the positions.
Position
Number
Parking
0
Gauge (height measurement station HMS)
1
Preheat station
2
Holder (test area)
3
Garbage (output station)
4
Handlingarm
40
Input station
50
Fig. 57: Numbering of the stations in magazine 1 (draft): 1=Gauge (height measurement station), 50=input station, 110 to 134=reference
positions for the single magazines.
Coding of the sample storages for the sample storage 134 (example):
134
134
134
134
position in the level
level in the magazine
magazine number
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Fig. 58: Numbering of the stations in the Flexometer magazine (draft): 1=gauge (height measurement station), 2=preheat station, 3=holder
(test area), 4=garbage (output station), 50=input station, 134, 234, 334, 434=reference positions for the single magazines.
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