insize ISR-S300 User manual

MN ISR 300- -S -E
www.insize.com
ROUGHNESS TESTER
OPERATION MANUAL
ISR-S300
V0

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Product Introduction
To get the best results from this instrument and to use it
satisfactorily, first read this manual. Observe the following
precautions to obtain the best results from the instrument in the
long term.
1
Attention
this instrument uses a calibrated stylus on the end of the pick-up.
Therefore always take great care when handling it and avoid
shocks. Keep it permanently clean using a jet of dry air of
pressure not more than two bar.
For the mains power supply, follow the indications on the
power supply and in this manual. Do not use power supplies
other than the one supplied.
Do not disassemble the instrument, with the exception of the
parts specified in this manual. Damage or malfunctions may
result.
General descripition:
The pick-up is a delicate, precision part. Do not subject to
stresses or shocks.
Do not use the instrument in dusty environments and with
strong vibrations. Where possible, keep it away from
generators of noise, such as large power supplies or
transformers, high voltage switches and relays.
Do not use/leave the instrument in places where there may
be excessive and sudden temperature excursions, or in closed
rooms with very high temperature or with direct sunlight.
Store the instrument in places where the temperature can be
kept at between -10°C and +50°C.
Before starting measurements, eliminate all oil residues and
dirt from the surface to be measured.
Do not subject the instrument to shocks or drops because its
internal translator, in spite of being extremely robust, may
become damaged and falsify the readings.
The ISR-S300 palm-top roughness tester is a portable, light and
compact instrument, extremely easy to handle and use.
Controlled by a microprocessor, it uses an alphanumeric liquid
crystal display (LCD) and the accumulator adopted permits
considerable operating autonomy. All the messages and menus
can be displayed in one of the following five selectable
languages: Italian, English, French, German, Spanish and
Portuguese.
The instrument consists of the electronic unit, the miniaturised
traverse unit (incorporated) and – where applicable – a printer
(optional); it is used to measure the main parameters of surface
roughness with a resolution in hundredths. The versatility of the
traverse unit permits all conditions of measurement to be
resolved, whether held in the hand or fastened to a stand. In
this last case, it is possible to turn on it and to start the measure
with an external push-button, so that to avoid the vibrations that
could distort the results.
The measurement range is set automatically when the cut-off is
chosen from among the three available but it is possible to
change it by selecting a cut-off number between 1 and 5.
The instrument prevents and reports on display any incorrect
manipulations or irregularities that may occur during the
measurement setting-up stages.
The instrument has a memory of 100 measurements, which may
be recalled and printed at any time.
The most common functions, such as recalling results, or cut-offs
and starting measurements, can be accessed directly using the
keyboard, while others are available by activating suitable,
easy to comprehend menus. Among other things, these menus
permit the presetting of tolerance thresholds which, when linked
to one of the measurable parameters, facilitate series checks.
When it is switched off, the ISR-S400 maintains in its memory all
the presettings and data relative to the last measurement made.
The instrument switches itself off automatically if left idle
for 40 seconds when powered by the battery (5 minutes when
powered by the power supply).

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All the settings are never lost even after the battery has been
completely discharged since the instrument uses a particular
MRAM internal storage memory.
Through a data output connector a link can be made to a
dedicated printer or to a computer. This connection can only be
made by using the cables supplied by the manufacturer. With the
printer connection a header and 3 user-customisable lines can be
printed; through the computer link, and with suitable software, it
is possible to control all the functions of the roughness tester,
transmit the measured profile to the computer and enter and
change at will the 3 customizable lines.
The printout, in all the envisaged modes, can only be produced
using the keys on the printer (optional).
2Structure:
The instrument can be controlled entirely using the keyboard on
the top part of the ISR-S400. Some of the keys perform a function
directly, while others are of assistance in handling menus and
presettings. The function of some keys will even differ depending
on the context. With reference to the figure, the main function of
the items on the top part is as follows: The instrument can be
controlled entirely using the keyboard on the top part of the ISR-
S400. Some of the keys perform a function directly, while others
are of assistance in handling menus and presettings. The
function of some keys will even differ depending on the context.
With reference to the figure, the main function of the items on the
top part is as follows:
1.
2 . O n - o ff / S TA RT ( s t a r t m e a s u r e m e n t ) - S TO P ( s to p
measurement) key.
3. Key for displaying the result of the measurement / displaying
and presetting the cut-off and cut-off number. If pressed when in
Liquid crystal display (LCD).
the main menu, causes the higher level menu to return on display.
4. Scroll key. If pressed when the result of a measurement is on
display, brings up the parameters after those on display; if
p r e s s e d w h e n s e l e c t a b l e p r e s e t t i n g s a r e o n d i s p l a y,
moves the cursor between the presettings; if pressed when in the
main menu, moves through the items on the main menu.
5. “ENTER” key. If pressed while the result of a measurement or
the cut-off is on display, brings up the main menu, otherwise it
confirms the selection made.
Auxiliary functions executed by means of the keys will be
indicated during the detailed description of the commands.
The active selection referred to above is shown on the display
by applying a black background to the currently selected item.
The function of the selection is to indicate the position of the
currently active item or of the character on which to take
action.
All the keys are provided with self-repeating function, that is
to say the ability to repeat their assigned function
continuously until such time as they are released. In addition,
the key assumes its second function, that of modifying the
digit selected.
4
top panel
real panel
As may be seen from the figure, the following are found on the
rear panel:
1. Connector for external power supply.
2. Battery on/off switch.
3. Connector for data output.
4. Connector for printer and for external push-button.

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3Switching on the instrument
The roughness tester is switched on by pressing the key . The
ISR-S400, after a number of internal checks have been
conducted quickly, indicates on the display for a few
seconds before moving on to displaying the parameters. This
indicates to the operator that the instrument is ready to be used.
Switching-off, on the other hand, occurs automatically 40
seconds after the last operation effected. If a key is pressed
within the 40 seconds, the on time count is reset to zero and, from
that precise time, extended for another 40 seconds.
All the functions activated directly from the keyboard and
those executed from the menus are only accessible after
the instrument has been switched on.
The switching on is also gotten with the special external push-
button (optional) connected to the data output, or automatically,
or when press the keys on the printer, or when the software
Measurement Studio communicate with the roughness tester.
Note: when the ISR-S400 switches off at the precise moment
you try to press a key, you are advised to wait for ½ second
before switching the instrument on again.
:
1the ISR-S400 menus. Use, notes and structure:
The operator programs and controls the instrument’s functions
through selection menus and submenus.
To activate the main menu press the key (ENTER) when the
display shows:
1. The results of a measurement.
2. The cut-off.
3. The cut-off number.
4. An error message.
To exit from the main menu and the submenus press the and ;
the first one immediately starts the measure, the second in the
submenus makes to climb a level, in the main menu it makes to
visualize the parameters.
The structure of the menu can be seen in the figure that follows:
The selections made on the submenus become operative
immediately and the active item or the last one we was positioned
on is indicated by a black background applied to the item. To
shift the the selection and, as a result, alter your selection, use
the key . Access may be had to the submenus by pressing the
key . When the menu or submenu contains numerous items
that cannot all be displayed simultaneously, you will see on
display only the items that can be written in full; the others will
appear gradually as you move with the cursor. For example, the
main menu comprises 8 items but only four are displayed at a
time.
2The pick-up:
The ISR-S400 incorporates the traverse unit mechanism and the
pick-up is fastened to the latter by means of the pick-up support
articulation. The measurements may be made either by
holding the ISR-S400 in your hand or fastened to a support or
simply set down (with additional supports for measurements on
cylinders and pick-up cover for use when measuring edges).
The pick-up support block permits rotation of the pick-up so that
measurements may be made inside throats (pick-up at 90°), as
shown in the figure below.
Menus and Settings

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To perform rotation of the pick-up, proceed as illustrated in the
figure:
Rotation of the pick-up through 90 degrees
With the extra V-shape supports, the ISR-S400 allows
measurements to be made on cylinders starting from a minimum
diameter of 80 mm.
3How to preset the cut-off:
The key that lets you access presetting of the cut-off is . If you
are in the main menu, to access presetting of the cut-off, press
the key twice; in any other context, simply press the key once.
The display lists the options possible, while the current selection
is indicated by the black background, for example, . To
modify it, set the selection on the value desired.
The traverse length made by the traverse unit corresponds to
the length λ t which depends on the cut-off selected,
according to the relation: ( cut-off no.+1)λ c. If for reasons
of space the length is excessive, you can lower the cut-off
number. Normally the 5 cut-off is used but you can select
between 1 and 5. To select this number press again ; the
display will show , move the selection to the value
desired. You can either return to modify cut-off by pressing
twice or terminate the operation by pressing once only.
In this case, the report will be displayed because the
assessment of the parameters is strictly related to λc and to
the number of λc used.
When the cut-off or cut-off number is changed on an instrument
already preset for measurement, setting of the cut-off may be
terminated with the key which immediately starts the
measuring cycle.
4How to preset the traverse length with ISO 12085:
When the ISO 12085 standard is used, the measurement range
no longer depends on the cutoff but is selected directly. The key
by means of which you access presetting of the measurement
range is . If you are in the main menu, to access presetting of
the measurement range press twice the key however, in all other
contexts, all you have to do is press the key once. The display
shows a list of the options possible with the current selection
indicated by the black background, for example . To
change it, set the selection on the desired value.
You can terminate the operation by pressing the key . In this
case, the report will be displayed ,because the
assessment of the parameters is strictly related to the traverse
length selected.
When the measurement range is changed on an instrument
already preset for measurement, the setting work may be
terminated with the key which immediately starts the
measuring cycle.
5use of the main menu and main menu items:
As already said, setting of the instrument is made through a
selection menu and relativesubmenus.

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The main menu is activated by pressing the key , when the
display shows the cut-off, a parameter, or an error signal. The
menu is presented in the following way with the last item selected
with black background.
For example, if the menu is activated for the first time, the item
“Position” will blink. When the display cannot contain the whole of
the menu, the cursor movement key lets you display the other
items. The significance of the items is as follows:
Position: Lets you control, in the section to be explored, the
position of the stylus with respect to the surface. This is very
useful in two cases:
1) to prevent the body of the pick-up from touching inside
holes or throats and bringing the sensor to the extremity of the
measuring zone or the stylus from losing contact with the
surface causing an interruption of exploration.
2)for positioning the pick-up correctly on critical surfaces,
such as concave, convex, etc. surfaces.
Param: Enables/disables the roughness parameters to be
printed and also lets the user access a further submenu where
he can enable/disable tolerance limits to be associated with a
parameter and the presetting of these limits.
Files: Enables/disables the storing of measurements and
permits elimination of the last measurement stored or all the
measurements simultaneously. Besides it allows to see on the
display all the memorized measures.
Calibration: Performs calibration of the instrument.
Delay: Allows the measurement starting with a certain period
of time delay after sending the command.
Standard: Selects the type of standard, ISO 4287 or ISO
12085 (CNOMO), with which the parameters are calculated.
Language: Allows you to select the language in which the
messages are displayed.
Assuming that the starting condition is always with the main menu
displayed, let us examine in detail how to use the different items.
Controlling the stylus position:
1) Make your selection on the item Position and press . The
following indication will be obtained , where the vertical
arrow indicates current position of the stylus while the horizontal
line below it represents the total excursion of the stylus during the
positioning session. In order to obtain correct measurements, the
arrow must be in the centre of the field defined on the display
coinciding with the zero point or as close to it as possible. The
useful positioning range about the zero point is ±75 μm.
2) Press to obtain a “test exploration” in which to check
if the arrow is outside the “ +” and “ -” limits. If it is
outside, position the pick-up again and repeat the exploration.
3) On completing these tests, press to return to the main menu,
or to exit from the menu.
6
7Enabling or disabling the parameters to be printed and
displayed:
The operator can select to print and display on screen only the
roughness parameters required. The procedure is as follows:
1) Move the selection on to the item Param and press .
The display shows , if the currently enabled standard
is ISO 4287, if the standard is ISO 12085.
2) Move the selection on one of the listen parameters then
press , the following submenu is displayed: , this
submenu allows to enable or disable the current parameter for
printing and displaying.
Move the selection on the item Show then Press to enable
the parameter if it is disabled, or vice versa, to disable the
parameter if it is enabled.
Printing and displaying of the parameter is enabled when the
symbol is displayed to the left of it, whereas it is disabled if
the symbol is displayed to the left of it. If the RPc
parameter is selected the following submenu will be
displayed: , where and additional option is displayed,
that is the value of the range amplitude used for the
calculation of the parameter. Move the selection with , on
the digit to be changed then press until the desired value is
reached.
3) Press to move between the parameters. Make your choice
and proceed in this way for all the parameters for which you wish
to alter the selection. At this point, by pressing you go back to
the main menu.

Presetting the tolerance thresholds:
1) Move the selection on to the item Param and press . The
display shows , if the currently enabled standard is ISO
4287, , if the standard is ISO 12085.
2) Move the selection on one of the listen parameters then
press , the following submenu is displayed: . This
submenu lets you enable or disable tolerances for that
parameter. Move the selection on the item Tol then press
to enable tolerances if those are disabled or vice versa, to
disable tolerances if those are enabled. The tolerances of the
parameter are enabled when to the left of the Tol item the
symbol , is displayed, whereas they are disabled when to
the left of the Tol item the symbol is displayed.
3) After you have made your choice, press to return to the
tolerances submenu. If you wish to go back to the main menu,
press ; to move on to displaying the data, press again.
4) Press to move the selection on the item of adjustment of the
lower tolerance value. The screen will be the following: .
Whenever there has been a previous presetting, the values are
displayed. To change the upper tolerance value, move with the
cursor through the first line with the key up to the digit that has
to be changed. Press the key until you come to the desired
value. To change the lower tolerance value, move the selection
with the key to the second line, the display will show .
Move the cursor, still using the key , over the digit to be
changed. Press the key until you come to the desired value.
5) Press to terminate the presettings.
The tolerances, on the display of the parameter that they are
associated with, produce the display of if the measurement
is inside the limits, blinking if the measurement is over the
limit T+, blinking if the measurement is below the limit T-.
The three cases are illustrated in the examples that follow:
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Note: if you need to check the value of a disabled parameter
and you have just finished measuring, simply enable the
parameter concerned. It is not necessary to complete the
measurement. The parameter Rmr% represents the bearing
ratio and it is also graphically printed as curve of Abbott.
8
Setting the calculating standard:
1) In the main menu make your selection on the item Standard and
press . The display will show .
2) Move the selection on the desired item then press to
enable the item if it was previously disabled or vice versa to
disable the item if it was previously enabled. The item is
enabled when to its left the symbol is displayed, whereas it
is disabled when to its left the symbol is displayed.
Press to go back to the main menu.
9
Setting the measurement unit:
1) In the main menu make your selection on the item Standard and
press . The display will show .
2) Move the selection on the desired item then press to enable
the item if it was previously disabled or vice versa to disable the
item if it was previously enabled. The item is enabled when to its
left the symbol , is displayed, whereas it is disabled when to its
left the symbol is displayed.
Press to go back to the main menu.
Note: The choice for the measurement unit is active only
when the calculation standard 4287 is selected, vice versa
the option mm(millimeters) is always used.
10
Setting the start measurement delay:
1) In the main menu make your selection on the item Delay and
press . The display will show .
2) Move the selection on the desired item then press to enable
the item if it was previously disabled or vice versa to disable the
item if it was previously enabled. The item is enabled when to its
left the symbol , is displayed, whereas it is disabled when to its
left the symbol is displayed.
Press to go back to the main menu.
11
Setting the language:
1) In the main menu make your selection on the item Language
and press . The display will show:
12

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Storing the measurements:
With the ISR-S400 it is possible to store up to a maximum of 100
measurements. If the measurements memory is full, each time the
operator makes a new measurement, the ISR-S400 produces an
error message advising that it is not possible to store the
measurement until one or more stored measurements are erased.
Printing of the measurements is obtained by pressing the
appropriate key on the printer.
Note: Measurements cannot be selected and recalled one at a
time, they are all printed together in a list. Only the
M e a s u r e m e n t S t u di o s o f t w a r e w i l l p e r m i t c o m p l et e
management.
P r i n t i n g c a n b e r ep e a t e d u n t i l y o u e l i m i n a t e a l l t h e
measurements. You can also examine the measurements one to
one on the display using the special voice of the menu.
13
Enabling/disabling storage of measurements:
1) In the main menu make your selection on the item Files and
press to bring up the submenu: .
2) Storage of measurements is enabled when the symbol is
displayed on the left of the item Activate, whereas it is disabled
when the symbol . is displayed on the left. Make your selection
on the item Activate and press to activate/de-activate this
function. Press to go back to the main menu. Performing the
measures with the storage activated, you will have the indication
of the number of the same present in memory; for example:
14
Showing all the measurements stored:
1) In the main menu make your selection on the item Files and
press to bring up the submenu: .
2) Make your selection on the item Show and press . The
first measure will be appear (Ms 1), with the number of used
cut-off (the length of measure in ISO 12085) and the first
two parameters. Press to visualize various parameters in
turn. In the second group the number of cut-off is visualized
also. Press to go to the next measure.
15
3) Press for interrupting the visualization and to go back to the
menu Files.
Eliminating all the measurements stored:
1) In the main menu make your selection on the item Files and
press to bring up the submenu: .
2) Make your selection on the item Reset and press . Press
to go back to the main menu.
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Operations
When performing measurements, to get a correct result, there are a
number of hints that should be observed:
1) Where possible, place the instrument and the part being measured
on a rigid bench free of vibrations and clean thoroughly the surface to
be explored. If you have to hold the ISR-S400 in one hand, make sure
you do not move it during the measure; make several measurements
and compare them because if one differs significantly from the others,
then you must have moved the ISR-S400 during the exploration. The
accessories supplied (cover for pick-up and riser feet) make
positioning easier.
2) Switch the instrument on and, if necessary, preset the desired
functions through the menus.
3) Insert a suitable cut-off and cut-off number (where necessary, refer
to table 1).
4) The pick-up must be positioned in such a way that it is as parallel as
possible to the surface to be explored. This may be checked by using
the Position function, especially when the part to be measured is
difficult to get to.
5) Start the measuring cycle with the key (on-off/start) or the
external push-button or the Measurement Studio command. The
traverse unit will move the pick-up, pulling it towards itself, until the
predetermined position is reached; the display will show respectively
the message on the first line and an incrementing
exploration progress indicator on the second line. At the end of the
exploration, while the display shows the result of the assessment, the
traverse unit brings the pick-up back to the idle position. The
measuring cycle can be interrupted at any time by pressing the key
.
2) Move the selection on the desired item then press to
enable it. The item is enabled when to its left the symbol ,
is displayed, whereas it is disabled when to its left the symbol
is displayed.
Press the key or the key to go back to the main menu.

15 16
Note: Measurements should always be made with the
temperature of the room, of the part and of the instrument
constant and, where possible, at 20°C.
Table 1. Relationship between roughness and cut-off.
Calibration
You are recommended not to use the specimen plate more than is
strictly necessary, to avoid deterioration caused by possible
scoring of the stylus which could falsify the roughness values.
Recharging And Replacing The Accumulator
When the accumulator charge is low, the instrument signals on
the extreme right of the first line of the display. The instrument
should then be connected, as quickly as possible, to the power
supply provided; then plug the power supply into a mains outlet,
after making sure that the voltage is that required (220V 50/60Hz).
The power supply plug should be inserted in the socket shown in
figure 2, on the rear of the ISR-S400, and making sure that it is
plugged in fully; leave to charge for at least 3 hours. A full charge
takes 4 hours. No problem will arise if the power supply is left
connected for more than this time, because it is provided with an
automatic charge control means.
It is possible to use the instrument even while the accumulator
battery is recharging.
Note: do not store the instrument for long periods with the
accumulator battery discharged, as it will become damaged.
If left idle for long periods, check the charge level at least
once every 30 days. If the accumulator discharges too
deeply, it will not be possible to switch the roughness tester
on. Do not replace the accumulator with zinc-carbon or
alkaline batteries. These batteries can explode if you try to
recharge them and, in any case, may cause the instrument
damage when their charge is low.
1
2T h e a c c u m u l a t o r c a n w i t h s t a n d a c e r t a i n n u m b e r o f
charge/discharge cycles, beyond which it can no longer be
charged and must be replaced. Use an 8.4V-170mAh NiCd or
NiMH type accumulator, PP3 format.
Remove the six base fixing screw of the instrument cover then
pull the cover from the top, detach the accumulator from the
button connection and insert the new one. Make sure that the
accumulator does not touch the contacts with the polarities
inverted!
Insert again the cover and fix it with the screws to the instrument
base.

17 18
Error Messages
Probable cause:
The instrument’s measuring capacity has been exceeded (Rt>300
μm).
Remedies: clean the part thoroughly and check that there are no
furrows at the measuring point. Try measuring a different point.
Data present in memory can no longer be used to gauge roughness.
Signalled in the following cases, after pressing :
a) After changing the cut-off.
b) After changing the cut-off number.
c) After calibration.
d) After a “measure test” in the Position function.
Remedies: make a measurement.
The value measured deviates too much from that of the specimen.
Remedies: repeat the calibration and check the value that you have
preset.
The calibration data have accidentally been erased or damaged.
Signalled after pressing .
Signalled when the data are required for printing or displaying or
when the roughness tester has to receive external commands. The
report is generated by the instrument timing-out for 2 seconds.
Probable causes:
a) The instrument that has to receive the data is not connected or is
switched off.
b) The receiver is not programmed correctly.
c) The connection cable is damaged.
Signalled when the diagnostic checks reveal a memory defect.
Remedies: call the technical service department.
Signalled at the end of a measurement when, with the ISO 12085
standa rd selected, the instr ument’s c alculating capaci ty is
exceeded.
Probable cause: The profile examined cannot be gauged.
Resetting The Storage Memory
If there are problems with the functioning of the menus, which may
occur due to excessive noise when the roughness tester is powered
from the mains, the storage memory must be reset in order to restore
proper working conditions.
However, note that the resetting involves the elimination of all the
presettings and flags that enable the software to restore the condition
prior to the switch-off.
The reset is performed by holding down the key while switching the
instrument on, and releasing it only after the mention appears
on the display.
It has been done correctly if, when you press the key again, the
following signal is displayed and if, when you check in the
menus, all the functions (print parameters, tolerances, etc.) are
disabled, and the cut-off is equal to 0.8.
If this is not the case, leave it to switch off and repeat the operation.