Brütsch Rüegger MITUTOYO SURFTEST SJ 201P User manual

Brütsch/Rüegger Tools Ltd.
P.O. Box | CH-8010 Zürich
Tel. [phone] | Fax [phone]
www.brw.ch | [e-mail]
148 460
MITUTOYO SURFTEST SJ 201P
surface roughness tester
No.99MBB079A1
SERIES No.178
2008-08-29
Manual

No. 99MBB079A
CONVENTIONS USED IN USER'S MANUAL
Safety Precautions
To operate the instrument correctly and safely, Mitutoyo manuals use various safety signs (Signal
Words and Safety Alert Symbols) to identify and warn against hazards and potential accidents.
The following signs indicate general warnings:
DANGER
Indicates an imminently hazardous situation which, if not avoided, will result in serious
injury or death.
WARNING
Indicates a potentially hazardous situation which, if not avoided, could result in serious
injury or death.
CAUTION
Indicates a potentially hazardous situation which, if not avoided, may result in minor or
moderate injury or property damage.
The following signs indicate specific warnings or prohibited actions, or indicate a mandatory action:
Alerts the user to a specific hazardous situation. The given example means “Caution,
risk of electric shock”.
Prohibits a specific action. The given example means “Do not disassemble”.
Specifies a required action. The given example means “Ground”.
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No. 99MBB079A
CONVENTIONS USED IN USER'S MANUAL
On Various Types of Notes
The following types of notes are provided to help the operator obtain reliable measurement data
through correct instrument operation.
IMPORTANT •An important note is a type of note that provides information essential to the comple-
tion of a task. You cannot disregard this note to complete the task.
• An important note is a type of precaution, which if neglected could result in a loss of
data, decreased accuracy or instrument malfunction/failure.
NOTE A note emphasizes or supplements important points of the main text. A note supplies
information that may only apply in special cases (e.g.. Memory limitations, equipment
configurations, or details that apply to specific versions of a program).
TIP A tip is a type of note that helps the user apply the techniques and procedures de-
scribed in the text to their specific needs.
It also provides reference information associated with the topic being discussed.
Mitutoyo assumes no liability to any party for any loss or damage, direct or indirect,
caused by use of this instrument not conforming to this manual.
Information in this document is subject to change without notice.
© Copyright Mitutoyo Corporation. All rights reserved.
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No. 99MBB079A
PRECAUTIONS
To obtain the highest performance from this instrument and to use it safely, read this User’s
Manual prior to use.
Observe the following precautions to get the most of the instrument and to attain high
accuracy for long time.
CAUTION
This instrument has a sharp stylus at the edge of the detector. Take care not to be
injured.
IMPORTANT • For the power supply, follow the conditions described on the AC adapter supplied.
Do not use other than the AC adapter provided.
• Do not disassemble the instrument unless otherwise specified in this User’s
Manual. It will result in instrument failure or damage. The instrument has been
rigorously adjusted and assembled at the factory.
• Do not drop or give impact to the detector. The detector is a precision part.
• Do not use the instrument in an environment where it is subject to dust or vibra-
tions. Also keep it as far apart from noise generator such as large power supply,
high-voltage relay switch as possible.
• Avoid using the instrument where there is sudden temperature change, and
operate it where the temperature is between 0 and 30°C(RH: 85 % or less). Do
not operate/store the instrument close to a room heater or in the direct sunlight.
• Store the instrument where the temperature can be controlled between -10 and
40°C.
• When mounting the detector to the drive unit, take care not to apply excessive
force to the drive unit.
• Before connecting /detaching the connector or connecting cable, turn the power off
(by auto sleep function).
• The stylus tip is machined precisely. Take care not to break it.
• Before measurement, wipe off oil or dust on the workpiece surface to be mea-
sured.
WARRANTY
This instrument has been manufactured, adjusted, and inspected under rigorous quality
control system of Mitutoyo. In the event that this instrument should fail within one year from
the original date of purchase through normal use conforming to the User’s Manual provided
with the product, we will repair or replace it, at our option, free of charge, upon its prepaid
return to Mitutoyo.
This warranty shall not apply if the product has been subject to fair wear and tear, abuse
through misuse or improper use/handling/storage/maintenance/service/repair or through
adaptation/modification by the original purchaser or any third party without prior written
consent of Mitutoyo or as a result of damage by an actual disaster or circumstances beyond
the control of Mitutoyo.
This warranty is not transferable and is only valid within the country of the original purchase.
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No. 99MBB079A
CONTENTS
CONVENTIONS USED IN USER'S MANUAL ................................................................. i
PRECAUTIONS ...............................................................................................................iii
WARRANTY.................................................................................................................... iii
1 SJ-201P OVERVIEW............................................................................................ 1-1
1.1 Outline of the SJ-201P ................................................................................. 1-1
1.2 Standard SJ-201P Configuration .................................................................. 1-3
1.3 Name of Each Part on the SJ-201P............................................................. 1-5
1.4 Attaching and Detaching the Drive/Detector Unit......................................... 1-9
1.4.1 Attaching and Detaching the Detector ............................................ 1-9
1.4.2 Attaching and detaching the drive/detector unit............................ 1-11
1.4.3 Plugging in and unplugging the display unit cable........................ 1-13
1.4.4 Using the connection cable ........................................................... 1-14
1.5 Carrying Case ............................................................................................. 1-16
2 OUTLINE OF THE SJ-201P FUNCTIONS AND KEY OPERATIONS ................ 2-1
2.1 Relationship Between SJ-201P Functions and Available Keys ................... 2-1
2.2 Key Operations to Enter Numeric Values .................................................... 2-6
3 MEASUREMENT OPERATION............................................................................ 3-1
3.1 Overall Measurement Flow........................................................................... 3-1
3.2 Power ON and OFF...................................................................................... 3-4
3.3 Calibration ..................................................................................................... 3-8
3.3.1 Calibration preparation .................................................................... 3-8
3.3.2 Performing calibration.................................................................... 3-11
3.4 Measurement .............................................................................................. 3-14
3.4.1 Setting the workpiece and SJ-201P .............................................. 3-14
3.4.2 Starting measurement ................................................................... 3-16
3.4.3 Switching the objective parameter to be displayed....................... 3-17
3.4.4 Detector retraction procedure........................................................ 3-18
3.5 Daily Care ................................................................................................... 3-20
3.5.1 Storage of SJ-201P ....................................................................... 3-20
3.5.2 Recharging the built-in battery ...................................................... 3-20
4 MODIFYING THE MEASUREMENT CONDITIONS ............................................ 4-1
4.1 Switching the Cutoff Length.......................................................................... 4-1
4.2 Modifying the Number of Sampling Lengths ................................................ 4-3
4.3 Setting the Evaluation Length to an Arbitrary Length .................................. 4-5
4.4 Setting the Pre-travel/Post-travel Length to OFF ......................................... 4-7
4.5 Modifying the Measurement Range.............................................................. 4-9
4.6 Switching the Surface Roughness Standard.............................................. 4-11
4.7 Changing the Measured Profile .................................................................. 4-13
4.8 Changing the Filter ..................................................................................... 4-15
4.9 Setting the GO/NG Judgment Function...................................................... 4-17
4.10 Setting Parameters Other Than Ra, Ry, Rz, and Rq................................. 4-20
4.11 Modifying the Traversing Speed................................................................. 4-27
4.12 Modifying the Calibration Conditions .......................................................... 4-29
4.13 Resetting to the Factory-Set Defaults ........................................................ 4-32
4.14 Switching the Unit of Measurements.......................................................... 4-34
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No. 99MBB079A
5 INSTALLING THE SJ-201P WITH OPTIONAL ACCESSORIES........................ 5-1
6 SAVING/OUTPUTTING/COMMUNICATING THE MEASUREMENT RESULTS 6-1
6.1 Setting the Measurement Result Output ...................................................... 6-1
6.2 Saving/Calling/Deleting Measurement Results............................................. 6-3
6.2.1 Saving measurement results ........................................................... 6-3
6.2.2 Calling the saved data..................................................................... 6-5
6.2.3 Deleting the saved data................................................................... 6-7
6.3 Printing Measurement Results and Saved Data .......................................... 6-9
6.3.1 Connecting the SJ-201P and printer ............................................. 6-10
6.3.2 Printing the measurement results or saved data .......................... 6-13
6.3.3 Setting the print items.................................................................... 6-16
6.3.4 Setting the print magnification ....................................................... 6-18
6.3.5 Setting the print language ............................................................. 6-21
6.4 SPC Data Output ........................................................................................ 6-23
6.4.1 Connecting the SJ-201P and DP-1HS .......................................... 6-24
6.4.2 Outputting the measurement results or saved data...................... 6-25
6.5 Connecting with a Personal Computer....................................................... 6-28
7 REPLACEMENT OF THE BUILT-IN BATTERY PACK ...................................... 7-1
7.1 Purchasing a Built-In Battery Pack............................................................... 7-1
7.2 Replacing the Built-In Battery Pack.............................................................. 7-2
8 TROUBLESHOOTING.......................................................................................... 8-1
9 PRODUCT SPECIFICATIONS ............................................................................. 9-1
9.1 Detector......................................................................................................... 9-1
9.2 Drive Unit ...................................................................................................... 9-1
9.3 Display Unit................................................................................................... 9-2
9.3.1 Compatible surface roughness standard......................................... 9-2
9.3.2 Measured profiles and applicable filters.......................................... 9-2
9.3.3 Cutoff length/sampling length, number of sampling lengths,
and sampling interval....................................................................... 9-2
9.3.4 Roughness parameters and display range ..................................... 9-3
9.3.5 Evaluation length ............................................................................. 9-3
9.3.6 Measurement range and resolution................................................. 9-3
9.4 Power Supply................................................................................................ 9-4
9.5 Temperature/Humidity Range ....................................................................... 9-4
9.6 External Dimensions and Mass .................................................................... 9-4
9.7 Optional Accessories .................................................................................... 9-5
9.8 SPC Output Specifications ........................................................................... 9-6
9.9 Connection Specifications with a Personal Computer ................................. 9-8
9.10 RS-232C Communication Specifications...................................................... 9-9
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No. 99MBB079A
10 REFERENCE INFORMATION............................................................................ 10-1
10.1 Surface Roughness Standard..................................................................... 10-1
10.1.1 Evaluation according to JIS B0601-1982 ...................................... 10-1
10.1.2 Evaluation according to JIS B0601-1994 ...................................... 10-2
10.1.3 Evaluation according to DIN.......................................................... 10-3
10.1.4 Evaluation according to ISO.......................................................... 10-4
10.1.5 Evaluation according to ANSI........................................................ 10-5
10.2 Assessed Profile and Applicable Filters ..................................................... 10-6
10.2.1 Measured profile ............................................................................ 10-6
10.2.2 Filters ............................................................................................. 10-9
10.2.3 Difference of filter characteristics ................................................ 10-12
10.2.4 Amplitude characteristic of 2RC and PC50 (Gaussian) filters .... 10-13
10.3 Mean line compensation........................................................................... 10-14
10.4 Traversing Length ..................................................................................... 10-15
10.5 Definitions of the SJ-201P Roughness Parameters................................. 10-17
10.5.1 Arithmetic mean deviation of the profile, Ra ............................... 10-17
10.5.2 Root-mean-square deviation of the profile, Rq ........................... 10-17
10.5.3 Maximum height of the profile, Ry (JIS)...................................... 10-18
10.5.4 Ten-point height of irregularities, Rz (JIS) .................................. 10-19
10.5.5 Maximum two point height of the profile, Ry (DIN, ANSI) .......... 10-20
10.5.6 Maximum height of the profile, Rz (DIN, ISO, ANSI).................. 10-20
10.5.7 Maximum profile peak height, Rp (DIN, ISO, New JIS).............. 10-20
10.5.8 Total height of the profile, Rt....................................................... 10-20
10.5.9 Mean width of the profile elements, Sm (JIS, ISO, DIN) ............ 10-21
10.5.10 Peak count, Pc (JIS, ISO, DIN)................................................... 10-21
10.5.11 Material ratio of the profile, mr .................................................... 10-22
10.5.12 Base roughness depth, R3z ........................................................ 10-22
10.5.13 Mean spacing of local peaks of the profile, S............................. 10-23
10.5.14 Material ratio curve of the profile (Abbott Firestone curve), BAC 10-24
10.5.15 Core roughness depth, Rk
(Depth of the roughness core profile) ......................................... 10-25
10.5.16 Reduced peak height, Rpk
(Average height of the protruding peaks above the roughness
core profile).................................................................................. 10-25
10.5.17 Reduced valley depth, Rvk
(Average depth of the profile valleys projecting through the
roughness core profile)................................................................ 10-25
10.5.18 Material portion, Mr1.................................................................... 10-25
10.5.19 Material portion, Mr2.................................................................... 10-25
10.5.20 Peak area, A1.............................................................................. 10-25
10.5.21 Valley area, A2 ............................................................................ 10-25
10.5.22 Measuring volume Vo.................................................................. 10-26
SERVICE NETWORK
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No. 99MBB079A
MEMO
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1 - 1 No. 99MBB079A
SJ-201P OVERVIEW
1.1 Outline of the SJ-201P
The Surftest SJ-201P is a shop-floor type surface-roughness measuring instrument, which
traces the surfaces of various machine parts, calculates their surface roughness based on
roughness standards, and displays the results.
This section explains the principle of surface roughness measurement and the features of the
SJ-201P.
■SJ-201P surface roughness measurement principle
A pick-up (hereinafter referred to as the “stylus”) attached to the detector unit of the SJ-201P
will trace the minute irregularities of the workpiece surface. The vertical stylus displacement
during the trace is processed and digitally displayed on the liquid crystal display of the SJ-201P.
2.The vertical stylus displacement produced
during tracing the workpiece surface is
converted into electrical signals.
4.The calculation results (measurement
results) are displayed on the LCD.
3.The electrical signals are subject to
various calculation processes.
1.The detector stylus traces the
workpiece surface
(measurement surface).
Workpiece
SJ-201P
DP-1HS
(Optional)
Direction of detector traverse
Stylus
Workpiece
surface
AC adapter
(The instrument can also be
powered by the built-in battery.)
Prints the measurement results
and saved data.
It is provided with the statistical
processing function.
Prints the measurement
results and saved data.
Printer
(Optional)

1 - 2 No. 99MBB079A
■Features of the SJ-201P
●Designed to be convenient
The SJ-201P has a lightweight (0.5 kg) design for excellent portability. In addition, it is
made compact so that it can be held and operated in one hand.
The built-in battery makes it easy to perform roughness measurement on the shop floor or
other sites where there may be no AC power supply.
NOTE No power is drawn from the battery while the instrument is supplied power via the
AC adapter.
For more information about the built-in battery, refer to “3.5.2 Recharging the built-in
battery” and “Chapter 7 Replacement of the Built-in Battery Pack”.
●Wide measurement range and various roughness parameters
The instrument has a maximum measurement range of 350 μm (-200 μm to +150 μm) or
13780 μin (-7880 μin to +5900 μin) and can represent surface texture using various
surface roughness parameters.
●Auto-sleep function to save power
If the SJ-201P is not used for more than 30 seconds, it is automatically turned off, even if
AC power is being supplied. SJ-201P measurement conditions are, however, retained.
●Large-size LCD and external output functions
Measurement results are displayed on the large easy-to-view LCD unit. These measure-
ment results can also be outputted externally as SPC (Statistical Process Control) data. If
connected to a personal computer, the SJ-201P can be remotely controlled (for output or
measurement commands) via the RS-232C communication interface.
●Measurement result saving function
The SJ-201P can save measurement results up to 10 cases of measurements. It can also call
the saved data to display and print the data.
●Compatible with various surface roughness standards
The SJ-201P outputs measurement results conforming to a variety of surface roughness
standards, including New JIS (JIS-B-0601-1994), Old JIS (JIS-B-0601-1982), DIN, ISO,
and ANSI.