Mecmesin MultiTest-x Manuale di installazione e funzionamento
Start-up Manual
MultiTe t-x
testing to perfection
Version 0.4i onwards
Effective August 2007
To be used in conjunction
with the Reference Manual
on the CD provided.
Mecmesin MultiTest-xManual
Contents
Introduction ..........................................................................................................
Hardware ..............................................................................................................
Safe Operation of MultiTest-xSystems
System Set-up and Operation
Connecting up ..........................................................................................
Loadcell ....................................................................................................
Limit Stops ................................................................................................
Control Panel ............................................................................................
Software ................................................................................................................
Booting-up the Software
Commands
i) Direct Command .....................................................................................
ii) Menu Options .......................................................................................
iii) Selecting Option within a Menu ...........................................................
iv) Typing in a Value ..................................................................................
Support ..................................................................................................................
Appendix 1 : Items included
Appendix 2 : A Guide to the Safe Use of Mains Powered Test Frames
Receiving and Unpacking .......................................................................................
Installing the Machine ............................................................................................
Operator Training....................................................................................................
Eye Protection and Protective Clothing ...................................................................
Machine Guarding .................................................................................................
Continued Safe Use ................................................................................................
Avoiding Accidental Damage to Test Frame
MultiTest-xSpecifications
1
2
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3
5
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7
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11
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Mecmesin MultiTest-xManual
Introduction
Thank you for choosing this Mecmesin console-controlled MultiTest-xtest system,
which with correct use will give many years of reliable service.
The stand-alone MultiTest-xhas been designed particularly for use in production
areas, which often prove to be unsuitable environments for PC operation. This
flexible, powerful, yet easy-to use system will carry out precise test procedures ‘at
the push of a button’, then automatically display test results and pass/fail analyses.
owever, upon receiving the unit, before attempting to install it and begin testing,
please:
• Check that no obvious physical damage has been sustained by the
packaging material or the test system itself. If any damage is evident,
please notify Mecmesin or an Authorised Agent immediately.
• Before attempting to unpack or move the test system, refer to the safety
advice given in Appendix 2.
• Appendix 1 gives a list of items which should be included with your
system. If any item is missing, please notify Mecmesin or an Authorised
Agent immediately.
It is strongly recommended that all the packaging and fixings be retained for any
future transit requirements. When using the MultiTest-xsystem please ensure that
the ventilation holes situated on the back and bottom* of the unit are not
obstructed. Also attach (hand tight only) the four rubber feet to the MultiTest-x
system with the screws provided. *1-x, 2.5-x and 5-x only
Hardware
MultiTest 1-x, 2.5-xand 5-xare single-column test frames with a precision ballscrew
drive. MultiTest 10-xand MultiTest 25-xare twin-column test frames with dual
precision ballscrew drive.
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Mecmesin MultiTest-xManual
Safe Operation of MultiTest-xSystems
Appendix 2 gives guidance notes on the safe use of mains-powered test frames; you
should read this before proceeding any further. Within the European Union (EU), a
copy of this Appendix will, if appropriate, be supplied in a language appropriate to
your country by your local Mecmesin Agent.
Note: Although movement of the test stand crosshead can be stopped via software,
in an emergency pushing the [Emergency Stop] button on the left-hand side of the
control panel is the best method!
System Set-up and Operation
Connecting up
Connect the mains power lead to the three-pin power inlet connector at the rear of
the test stand (1), supply of power is controlled by the black rocker switch (2) above
the power inlet connector.
3
(2)
(1)
(3)
(4)
(5)
Mecmesin MultiTest-xManual
The required power supply voltage (110-120V or 220-240V) is indicated by the
marker on the panel (3) within the fuse cartridge housing. Your local Mecmesin
representative will already have checked that the fuse cartridge has been installed
correctly for the supply voltage in your country. It is possible to modify your
MultiTest-xfor operation in a country with a different supply voltage by: turning off
the power, removing the fuse cartridge housing, checking that both fuses are fitted,
rotating the cartridge through 180º, then reassembling and reinstalling. (The marker
will now point to the new voltage rating on the cartridge panel (3).)
Communication with external equipment is via two ports on the back panel.
The nine-pin D-connector (4) is for RS232 communication with external devices
using the serial cable supplied. Choosing the ‘Print Menu’ option from the Main
Menu gives more information about configuring RS232 communication, and
downloading data to other equipment, e.g. PCs and dataloggers. The MultiTest-x
firmware can also be upgraded via this port by your agent.
The fifteen-pin D-connector (5) is for further digital input/output communication,
e.g. with PLC equipment; more information and an appropriate cable can be
obtained from your local Mecmesin distributor.
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Mecmesin MultiTest-xManual
Loadcell
The XLC (Xtra loadcell) connects to the MultiTest-xvia a 12-way irose connector.
Gently push the connector on the loadcell cable into the port (1) on the test stand
then twist until the connectors engage, secure the connection by twisting the
knurled connector ring clockwise. Note that the position of the port depends upon
the capacity of the MultiTest-xstand. It is: near the top of the right-hand side of the
column shroud for a MultiTest 2.5-x, about half way up the right-hand side of the
column shroud for a MultiTest 1-xand MultiTest 5-x, and for twin-column test
frames about half way up the rear face of the right-hand column.
The XLC (2a/b) measures the load applied to the test specimen and uploads data for
display on the LCD screen of MultiTest-x. XLCs with capacities of 500N or less have
an internal loadcell (2a), but those with capacities of 1kN or greater have an
external loadcell (2b).
Notes:
1. Any loadcell, particularly a low capacity loadcell, is a delicate instrument. Care
should always be taken to avoid excessive load, i.e. any load exceeding 120% of
capacity, being applied to your loadcell. If you believe that excessive load has
been applied, you should contact your local Mecmesin distributor.
2. MultiTest-xstand should be turned off before connecting or disconnecting the
XLC cable from the stand.
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Mecmesin MultiTest-xManual
Limit Stops
The range of travel of the crosshead can be physically limited by using ‘limit stops’,
each MultiTest-xhas both an upper limit stop and a lower limit stop. Limit stop
adjusters are illustrated above: MultiTest 1-xand MultiTest 2.5-x, use type (1),
MultiTest 5-xuses type (2), while MultiTest 10-xand MultiTest 25-xuse type (3). In
each case slacken off the black adjuster wheel, re-position appropriately, then
retighten.
If a limit stop is reached, a message, prompting the operator to drive the crosshead
in the appropriate direction, will be displayed on the control panel.
Control Panel
The MultiTest-xsoftware communicates with the operator via a four line (twenty
characters per line), LCD within the control panel.
The operator communicates with the MultiTest-xsoftware via the sixteen button
keypad on the control panel.
In an emergency the operator can stop the MultiTest-xcrosshead moving by pushing
the red [Emergency Stop] button on the left-hand side of the control panel. Normal
operation can then be restored after the system has been re-set by twisting the
[Emergency Stop] button about 60º clockwise until it releases.
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Mecmesin MultiTest-xManual
Software
Booting-up the Software
When the MultiTest-xis switched on, information including the serial number of the
stand, the version number of the stand and the procedures being loaded will be
displayed.
Eventually a screen similar to this,
will be displayed. This ‘tare screen’ has two options, at least one of which will need
to be selected before testing can begin. (The ‘05016312’ is the serial number of the
loadcell, and the ‘2500N’ is the capacity of the loadcell)
• Pressing the [1] key will set the value of both load and displacement to
zero.
• Pressing the [2] key will set the load value to zero
Setting load displayed to zero is particularly useful, this eliminates the weight of the
fixturing attached appearing as a systematic error on the load reading. This is, in the
case of weight, load or force called ‘taring’. Similarly, setting the displacement to
zero will establish a datum point relative to which all other positions will be
measured.
It is possible to return to this screen from the ‘live’ test screen at any time by
pressing the [(-)/Tare] key.
7
Mecmesin MultiTest-xManual
Commands
There are four basic types of software instructions which can be entered via the
control panel:
i. A direct command
ii. Choosing a menu option
iii. Selecting an option from within a menu
iv. Typing in a value
i) Direct Command
A direct command is one to which the MultiTest-xsystem will attempt to respond
without delay. The direct commands are:
• Pressing [Jog Up] to move the crosshead up
• Pressing [Jog Dn] to move the crosshead down
• Pressing [Start/ENT] to run the current test procedure
• Pressing [Tare] to Tare load and/or displacement
• Pressing [Touch] to set the absolute zero position
• Pressing [Home] to move crosshead back to the home position
• Pressing [Batch] to enter batch/operator details
Direct commands can only be executed from the ‘live test’ screen.
ii) Menu Options
This is an example of a screen from which one of five
menu options can be chosen.
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Mecmesin MultiTest-xManual
Note that, as the maximum number of options which can be displayed concurrently is
four, a ‘v’ in the lower right-hand corner indicates that there is at least one more menu
option which can be displayed by pressing the [Jog Dn] key. The keys [1], [2], [3], [4]
and [5] have, in effect, been programmed to act as ‘soft keys’. (PC programs often use
the keys [F1], [F2], …[F12], like this. Also many cellphones use the top left-hand and
top right-hand keys in a similar manner)
iii) Selecting Options within a Menu
Pressing such a ‘soft key’ will not necessarily display a ‘sub menu’, it may allow the
operator to scroll through a range of available options by repeated presses of that key.
iv) Typing in a Value
Use the keypad to enter numeric values. Use the [Stop/BK SP] key to:
• erase the current value
• delete the last character of the value being entered
(Note that the system may accept entry of a value with a certain number of
characters, but fewer characters will be retained by the system. For example it may
be possible to key in a ‘Local Overload’ of 50.678N, but the system will only
‘remember’ 50.7N.)
Some screens can only be accessed by typing in a password. Information for
accessing, and operating within, these restricted screens appears in the main
operating manual.
9
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