SR100 Surface Roughness Tester
Operating Guide
Mode status
Display
Parameter Status
Parameter Selector
Mode Selector
Traverse Unit
ArDA Windows
Stylus
Start Buttons
Control Unit
ON Button
Getting Started
Storage. The SR100 is supplied with the
Traverse Unit (bottom) connected to the
Control Unit (top). Before use, separate the
Traverse Unit from the Control Unit.
Inserting the Batteries
Remove battery covers as shown. Then,
insert one 3V Lithium 2450 in to the Control
Unit and three 3V Lithium 2450s in to the
Traverse Unit as shown.
Note: To prevent damage to the stylus, store
the SR100 with the units connected.
Control Unit
To separate,
press here
and tilt
the Traverse
Unit as shown
Traverse Unit
Position the Traverse
Unit on the surface
as shown
The SR100 can be operated in two modes:
Remote or Connected.
Remote: Position the Control Unit
within 40" (1 meter) of the Traverse
Unit. Data is passed between the
two units over the IrDA link.
Note: Alignment between the
Traverse Unit and Control
Unit separation
must be maintained during
Max. 40"
(1 meter)
separation
the measurement process.
Connected: In connected mode,
the Control Unit is connected to the
Traverse Unit before the measurement is made, as shown. To connect
the Control Unit to the Traverse Unit,
insert the Control Unit as shown and
tilt until the latch engages.
Caution:
- Use recommended
batteries only.
- Do not atttempt
to recharge used
batteries.
- Safely dispose of
used batteries
Then replace the battery covers. After
the batteries have been changed, there
will be a short delay when the SR100 is
turned on.
Turning On the SR100
When the Control Unit is not used for five
minutes or more, it enters power save
mode, turning the display off. Press any
button to reactivate.
+
-
µinµm
Ra Rz Rv Rp Rt
The Traverse Unit switches off completely after five minutes of inactivity.
To reactivate, press the On button. An LED
will flash to confirm activation.
µinµ
Low Battery Indicators
+
-
µinµm
Ra Rz Rv Rp Rt
µinµm
Ra Rz Rv Rp Rt
+
-
Control Unit Traverse Unit
Set Up Procedure
A new SR100 is fully set up out of the
box. However, if the pick-up is changed or
another alteration is
made, field setup may
be required using the
following procedure:
Press the On button on the Traverse Unit.
Position the traverse unit on the calibration
standard in the correct orientation. First,
press both selector buttons simultaneously
and then press the right hand start button
while still pressing both selector buttons.
The display will go
m
through the following
sequence over a 50
second period. The
control unit must
Ra Rz Rv Rp Rt
µinµm
remain pointed at the
traverse unit during
this entire cycle.
Ra Rz Rv Rp Rt
Five values are stored and can be viewed by
toggling the Selector button as follows:
1: Gain pot setting
2: Rz value (21.5 ±10%)
3: Speed pot setting
4: Rp value (Profile period signal (68 ±2%)
5: Can be ignored for this procedure
Note: If a setup error occurs, the procedure
terminates and an E code is transmitted and
displayed in the Control Unit (see E codes).
+
-
+
-
Calibrating the Gage
+
-
Position the Traverse Unit to measure the Calibration Standard included with the SR100
(DO NOT use other standards). Press Mode Select (on the Control Unit) until is indicated
on Mode status.
Press the Start button on the Control Unit to initiate the gage calibration procedure. The result
will be display the Control Unit. The Ra value
should be 5.81µm and the Rz value 21.5µm.
If there is an error, an E code is displayed (see
E Codes).
Measuring
Operation of the Control Unit is identical in
either the Connected or Remote mode. Position
the Traverse Unit on the surface to be measured, then press Select on the Control Unit
to select the parameter to be displayed upon
completion of the measurement.
Select either English or metric units with the
Mode button. If in remote mode, be sure to
maintain line of sight of the infrared transceivers during the measurement.
Press either Start button
to begin the measure-
µinµm
ment. The “measurement in progress”
display is shown.
The measured parameter
is displayed as shown.
Ra Rz Rv Rp Rt
µinµm
If there is an error, the
appropriate E code is
displayed (see E Codes).
Ra Rz Rv Rp Rt
All parameters (not just the selected parameter) are transmitted to the Control Unit at the
same time and temporarily stored. The stored
results may then be stepped through using the
select buttons.
+
-
+
-
Specifications
Traverse length: 0.2" (5mm)
Measurement length: 0.16" (4mm)
Traverse speed: 0.08in/s (2mm/s)
Gauge range: 8000µin (200µm)
Gauge resolution: 2µin (0.05µm)
Display resolution: Ra. 0.4µin (0.01µm)
Display resolution: 1µin (0.1µm) for
Rz, Rt, Rp, Rv
Cut off: 0.03" (0.8mm) ±15%
Uncertainty: 4µin (0.1µm) or 5% of result, to 95%
confidence level
Results range: Ra. 1600µin (40µm)
(See ISO 4288-1996)
Results range: Rz, Rt, Rp, Rv. 8000µin (199.9µm)
(See ISO 4288-1996)
Stylus: Diamond. Radius: 123µin (5µm)
nominal, 90o tip angle. Skid radius: .394" (10mm)
nominal.
Filter type: 2CR, (200:1)
Sample spacing: .025µin (1um)
Stylus Force: 1gf (10mN) max at mid range
Batteries:
Control Unit: (1) 3V Lithium 2450
Traverse Unit: (3) 3V Lithium 2450
Units: µin or µm
Operating conditions: 50-95oF (10-35oC) 80% RH
non-condensing
Size: 4.92 x 3.15 x 1.5" (125 x 80 x 38mm)
Weight: 7oz (200g)
Error Codes
E1: Infra Red communication error. Repeat
operation.
E2: Measurement attempted when not calibrated.
Calibrate the Traverse Unit.
E3: Traverse Unit - Oscillator fault. Retry. If fault is
persistent, contact Starrett
E4: Traverse Unit - Motor Positioning fault. Retry. If
fault is persistent, contact Starrett
E5: Traverse Unit - NVRAM Error. Retry. If fault is
persistent, contact Starrett
E6: Traverse Unit - Profile Over-range. Retry
measurement.
E7: Traverse Unit - Parameter Over-range. Retry
measurement.
E8: Traverse Unit - Motor Speed Setup error. Retry
Set up procedure.
E9: Traverse Unit - Gain Setup error. Retry Set up
procedure.
E10: Control Unit - Oscillator fault. Retry. If fault is
persistent, contact Starrett
E11: Traverse Unit - Calibration information
download error. Try again.
E12: Traverse Unit - Not set up. Run the Set up
procedure.
E13: <Reserved>
E14: Traverse Unit - Electronic Measurement er-
ror. Retry. If fault is persistent, contact Starrett
Form 964 04/11 2.5C/T
The L.S. Starrett Company
121 Crescent Street, Athol, MA 01331
978-249-3551
978-249-3551 starrett.com
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