Surface, Form and Contour Measurement
Bulletin No. 1795
Surftest SJ-201P
Portable Surface Roughness Tester
Smart tool
in the workshop
• Large characters are displayed on the large
easy-to-view LCD.
• Portable for easy measurement anywhere necessary.
• The detector/drive unit can be detached from the
display unit for effortless measurement of awkwardly
oriented workpieces.
• Wide 350µm (-200µm to +150µm) measurement range.
• Roughness parameters compatible with ISO, DIN,
ANSI, and JIS.
• 19 analysis parameters are provided, including the
basic Ra, Rq, Rz, and Ry parameters.
• Customize function allows hiding of unnecessary
parameters.
• GO/NG judgment on a desired parameter.
• Auto-calibration for simple gain-adjustment.
• Auto-sleep function saves energy.
• 10 Measurement data is retained in memory
even after the power is turned off.
• Data output is available for SPC operation.
• RS-232C interface enables data transfer
to computer or other devices using an
external device.
• 2-way power system (AC adapter/rechargeable
built-in battery).
Setting Modification Keys:
The top cover of the display unit slides to
allow access to the setting modification
keys underneath.
REMOTE Key for Data Output:
To use the RS232C cable, it is possible to
connect the printer to print the measured
profile. It is also possible to connect PC
by changing the cable.
SPC Data Output
and Communication:
The SJ-201P is provided with
functions to output SPC
data and communicate with
external devices via the
RS-232C interface.
SURFTEST
SJ-201P
Portable Surface
Roughness Tester
• A dedicated carrying case is included for safe transport.
• A precision roughness specimen is supplied.
• A hard copy of the measurement data is available
with the optional printer (64AAA779).
SURFTEST
SJ-201P
Specifications
Code No. 64AAA779
Printing Method Line Thermal Dot Printing
Interface Serial (RS-232C)
Input Buffer 2KB
Printing Width 1.89"
Dot Density 8 dots/mm
Printing Speed Approx.11 lines/sec at maximum
Power Supply 120 VAC
Weight Approx. 1.61 lbs.
Dimension 4.17" (W) x 7.24" (D) x 4.33" (H)
SJ Printer (Optional)
The compact SJ printer (64AAA779) prints out
measurement data at high speed and high quality.
Printer Cable (64AAA299).
Applications
• If the detector/
drive unit is
attached to the
display unit:
• If the detector/drive unit is detached from the display unit:
Dimensions
Various optional accessories widen the application range of measurements.
Measurement with the
detector facing upward.
Measurement
in the vertical
direction.
The bottom of the detector
has V-grooves for stable
measurement
of cylindrical
workpieces.
Measurement
in the horizontal
direction.
Support foot set (pair) 12AAA216
Detector Retracting
Function:
If moving the SJ-201P or if
it will not be used for a long
period of time, the detector
retracting function prevents
damage to the detector
caused by the tip being
accidentally hit.
Height Gage Adapter – 12AAA222
Detectors
• Adjustable
height:
1.1" (28mm)
Select a detector appropriate for the material and shape of the workpiece to be measured.
Ra, Rq, Ry, Rz,
S, Sm, Pc, R3z, mr, Rt, Rp, Rk,
Rpk, Rvk, Mr1, Mr2, A1, A2, Vo
Calibration
Mode:
Pressing the [CAL/STD/RANGE]
key in the measurement mode,
the calibration mode is entered
allowing the detector to be
calibrated to the precision
roughness specimen with
simple key operation.
Parameter Ra value
being displayed
Measurement:
Pressing the [START/STOP]
key in the measurement mode
starts the detector measurement
traversing.
Measurement traversing indicator
“- - - -” on the LCD turns out
into the parameter value display
if measurement is complete.
Measurement traversing length
can be set according to a
national/international standard
or to an arbitrary length.
Measuring
Parameter
Reduction:
Parameter calculations and
resultant display can be limited
only to those actually required.
Reducing the parameters
simplifies the key operation
and parameter calculations.
Ra, Rq, Ry, and Rz
Plus ElevenMore
Parameters:
Seven more analysis/display
parameters can be set up in
addition to the factory default
parameters Ra, Rq, Ry, and Rz.
After measurement, press the
[PARAMETER] key repeatedly
until the desired one is
displayed on the LCD.
GO/NG judgment
19 Surface Roughness
Parameters...
Compatible with
ISO / DIN / ANSI / JIS
SJ-201P Specifications
Order No. 178-923A
Type inch (mm)
Drive Unit
Drive speed
Measuring: .01"/s (0.25mm/s), .02"/s ( 0.5mm/s), Returning: .03"/s (0.8mm/s)
Evaluation length*
1
.49" (12.5mm)
Mass
.42 lbs. (190g)
Detector provided 178-390
Detecting method
Differential inductance
Measuring range
13780µin (350µm) (-7880µin/-200µm to +5900µin/+150µm)
Material of stylus
Diamond
Radius of skid curvature
1.57" (40mm)
Mass
.04 lbs. (18g)
Stylus tip radius
200µin (5µm)
Measuring force
4mN
Display Unit
Assessed profile
Primary profile (P), Roughness profile (R), DIN4776 profile
Roughness parameter
Ra, Ry, Rz, Rq, S, Sm, Pc, R3z, mr, Rt, Rp, Rk, Rpk, Rvk,
Mr1, Mr2, A1, A2, Vo (can be customized)
Roughness standard
JIS, DIN, ISO, ANSI
Sampling length (L)
.01", .03", .1" (0.25mm, 0.8mm, 2.5mm)
Number of sampling spans
x1, x3, x5, xL*
1
Digital filter
2CR-75% (without phase compensation), PC-75%, PC50% (Gaussian)
Cut-off lc
.01", .03", .1" (0.25mm, 0.8mm, 2.5mm)
Length ls
100µin, 320µin (2.5µm, 8µm)
Resolution/range
Auto/depending on the measurement range
16.4µin/14000µin (0.4µm/350µm)
4.1µin/4000µin (0.1µm/100µm)
2.0µin/2000µin (0.05µm/50µm)
.5µin/400µin (0.01µm/10µm)
Displaying range
Ra, Rq
.4µin - 4000µin (0.01µm - 100µm)
Rz, Ry, Rp, Rt,
.8µin - 13780µin
R3z,Rk, Rpk, Rvk
(0.02µm - 350µm)
Pc
6.35 - 12700/inch (2.5 - 5000/cm)
mr
1 - 100%
Sm, S
80µin - .16" (2 - 4000µm)
Mr1, Mr2
0 - 100%
A1, A2
0 - 15000
Vo
0.000 - 10.00(mm3/cm2)
GO/NO-GO judgment
Upper and lower limit values can be specified.
Power supply
Via AC adapter/built-in rechargeable battery
Rechargeable battery
Charging time: 12 hours (for 500 measurements)
Auto-sleep (turning off)
After 30 seconds without operation
Data output
Via RS-232C interface unit, SPC output, PC output, Printer output
Mass
.64 lbs. (290g)
*1 Evaluation length can be specified arbitrarily in the range from .01" (0.3mm) to .49" (12.5mm).
Standard Accessories
12BAA303 Connecting cable (1m)
178-602
Roughness specimen (inch/mm)*
*Either of them supplied.
353134 Calibration stand
538612 Phillips screwdriver
12BAA304 Carrying case
99MBB079A
User's manual (for SJ-201P)
99MBB081A
One-sheet manual
526688 AC adapter
Optional Accessories
178-391 Detector for soft materials
(Stylus tip radius: 10µm)
178-392 Small hole detector (ø4.5mm)
178-393 Small hole detector (ø2.8mm)
178-394 Deep groove detector
178-395 Detector for low pressure type
(Stylus tip radius: 2µm, Measuring force:
0.75mN)
936937 SPC cable (1m)
965014 SPC cable (2m)
12AAA208 RS-232C connecting cable
12AAA216 Support foot set (pair)
12AAA217 Nosepiece for flat surface
12AAA218 Nosepiece for cylindrical sur-
face
12AAA219 Vertical positioning adapter
12AAA220 Magnetic stand adapter
(3/8" DIA. stem)
12AAA221 Magnetic stand adapter
(Ø8mm stem)
12AAA222 Height gage adapter (mm)
12AAA233 Height gage adapter (inch)
12AAA210 Extension rod (50mm)
178-033 Setting attachment:V type
178-034 Setting attachment: Slider type
178-035 Setting attachment: Inside
diameter type
178-241-2A Display unit for SJ-301
Roughness specimen
© 2004 Mitutoyo America Corporation, Aurora IL We reserve the right to change specifications and prices without notice. 1004-08 • Printed in USA • October 2004
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