Ametek Surtronic 25 User manual

Surtronic 25
User’s Guide
K505/125-01 Issue 4
Taylor Hobson Ltd
POBox 36, 2 New Star Road, Thurmaston, Leicester
LE49JQ, England
Telephone[phone], Fax [phone]
E-mail:[email protected]
www.taylor-hobson.com

Surtronic S25
Chapter 1 Introduction to
Surface Texture terminology
and definition s ............................1-1
SurfaceTexture Definitions ......................1-1
ParameterDefinitions ...............................1-3
Ra
......................................................... 1-3
Rp
......................................................... 1-3
RSm
..................................................... 1-3
Rz
......................................................... 1-3
Rz1max ................................................
1-3
Rt
.......................................................... 1-4
Rmr
...................................................... 1-4
RPc
...................................................... 1-4
Rsk
....................................................... 1-4
Rda
....................................................... 1-5
Chapter 2 Description ...............2-1
TheEquipment ........................................... 2-2
Traverse Unit ...................................... 2-2
Pick-up Mounting Components .......... 2-3
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Surtronic S25
Mounting Bracket
................................. 2-4
AdjustableSupport
............................... 2-5
Pick-upholder ......................................
2-5
Connector
............................................. 2-6
Pick-up
................................................. 2-6
Mounting............................................. 2-8
Chapter 3 Getting Started ........ 3-1
Battery
........................................................ 3-1
Connecting the Pick-up ............................. 3-1
Making a measurement
............................. 3-2
Switching the Surtronic 25 ON ........... 3-2
Tocancel a measurement ..................
3-4
Using the Surtronic 25 with a PC
............. 3-4
Printing
....................................................... 3-4
Tocancel print:
..................................... 3-5
Chapter 4 Menu Settings .......... 4-1
Main Menu
.................................................. 4-1
Cutoff....................................................
4-1
Evaluationlength...................................
4-1
Parameters............................................ 4-1
Range:
.................................................. 4-4
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Surtronic S25
RangeSelector Table ........................
4-4
PrintSettings: ....................................... 4-4
Units: ....................................................
4-4
Filter: ....................................................
4-4
Dump Mode: .........................................
4-5
DumpMode (Using your Surtronic 25
witha PC) ...........................................
4-5
SPCMode ...................................................
4-5
LanguageSettings
.................................... 4-6
Chapter 5 Making Measurements -
Technical Considerations .........5-1
OperatingNotes .........................................
5-1
Ona horizontal surface ...................... 5-1
Onother surfaces ...............................
5-2
Cutoff: ................................................
5-2
Evaluation Length: ............................. 5-3
Tableof Cut-off values .......................
5-3
OperatingError Indications ......................
5-4
Specification ..............................................
5-6
RS232Output .............................................
5-7
PrinterConfiguration .......................... 5-7
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Surtronic S25
Specification for Data Dump ..................... 5-8
Chapter 6 Accessories ............. 6-1
Alternative standard pick-up (112/1503) ..6-1
Smallbore pick-up, 5mm (200min) stylus
tip radius (112/1504)
.................................. 6-1
SmallBore Pick-up (112/2673)
................. 6-1
NarrowGauge Stylus (155/P11610)
......... 6-2
RightAngle Pick-up, 5mm (200min) stylus
tip radius (112/1505)
.................................. 6-2
Recesspick-up, 5mm (200min) stylus tip
radius (112/1506)
....................................... 6-3
Recesspick-up (112/2672)
........................ 6-4
Chiseledge pick-up (112/1524)
................ 6-4
Side-skidpick-up (112/1531)
.................... 6-5
ShoePick-up (112/1599)
........................... 6-6
Detachable Skid (112/1191) ...................... 6-7
Extensionrod (112/1533)
.......................... 6-7
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Surtronic S25
PortablePrinter 112/3469-01 ....................6-8
ReplicaKit (112/727) .................................. 6-9
Portablebase (137/1734)
........................... 6-10
Chapter 7 Maintenance .............7-1
Calibration .................................................. 7-1
Reference Standard ...........................7-1
Sensitivity Check and Adjustment ......7-1
Pick-up with Chisel Edge Stylus .........7-2
Cleaningthe Stylus
................................... 7-2
Pick-upSkid ............................................... 7-2
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Surtronic S25
Page vi

Chapter 1
Surtronic S25
Introduction to Surface Texture
terminology and definitions
SurfaceTexture Definitions
Every components surface has some form of texture which varies
according to its structure and the way it has been manufactured.
These surfaces can be broken down into three main categories:
Surface roughness, Waviness and Form. In order to predict a
components behaviour during use or to control the manufacturing
process, it is necessary to quantify these surface characteristics.
This is done by using surface texture parameters.
Surface texture parameters can be separated into three basic types:
Amplitude, Spacing and Hybrid.
Amplitude Parameters. are measures of the vertical
characteristics of the surface deviations.
Spacing Parameters. are measures of the horizontal character-
istics of the surface deviations.
Hybrid Parameters. are combinations of spacing and
amplitude parameters.
Mean Line. the mean line is a least squares line of nominal form
fitted through the primary profile where the areas of the profile
above and below this line are equal and kept to a minimum
separation. Profile filters as detailed in ISO11562 define the mean
lines for the roughness and waviness profiles.
Cut-off. A cut-off length (or sampling length) is a filter that uses
either electronic (2CR) or mathematical (Gaussian) means to
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Surtronic S25
remove or reduce unwanted data in order to look at wavelengths in
the region of interest.
Bandwidth. Bandwidth is the ratio of the upper Cut-off (Lc) to
the lower Cut-off (Ls).
Sample Length. The profile is divided into sample lengths l,
which are long enough to include a statistically reliable amount of
data. For roughness and waviness analysis, the sample length is
equal to the selected cut-off (lc) wavelength. The sample length is
also known as the cut-off length.
Evaluation Length. The length in the direction of the X axis
used for assessing the profile under evaluation. The evaluation
length may contain one or more sample lengths. For the primary
profiles the evaluation length is equal to the sample length.
Note: almost all parameters are defined over one sample length,
however in practice more than one sample length is assessed
(usually five) and the mean calculated. This provides a better
statistical estimate of the parameters measured value.
ISO 3274-1996, ISO 4287-1997, ISO 4288-1996, ISO 11 562 and
other International Standards are followed where appropriate by
Taylor Hobson equipment.
More detailed information on surface texture in general and on
stylus-type measuring instruments in particular is covered in the
book 'Exploring Surface Texture', published by Taylor Hobson.
ParameterDefinitions
Surface texture is quantified by parameters which relate to certain
characteristics of the texture. The Surtronic 25 offers the
following parameters:
Page 1-2