PCE Instruments PCE-RT 2200 User manual

PCE Americas Inc.
711 Commerce Way
Suite 8
Jupiter
FL-33458
USA
From outside US: +1
Tel: [phone]
Fax: [phone]
[e-mail]
PCE Instruments UK Ltd.
Units 12/13
Southpoint Business Park
Ensign way
Hampshire / Southampton
United Kingdom, SO31 4RF
From outside UK: +44
Tel: [phone]
Fax: [phone]
[e-mail]
www.pce-instruments.com/english
www.pce-instruments.com
Manual
Roughness Tester PCE-RT 2200
Version 1.0
Date of creation: 12.05.2016
Date of last change: 02.12.2016

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Contents
1Safety notes.............................................................................................................3
2Specifications..........................................................................................................4
2.1 Technical specifications.............................................................................................................. 4
2.2 Delivery contents........................................................................................................................ 4
2.3 Optional accessories .................................................................................................................. 5
3System description.................................................................................................5
3.1 Device......................................................................................................................................... 5
3.2 Display and function keys........................................................................................................... 6
3.3 Optional accessories .................................................................................................................. 7
4Getting started.........................................................................................................9
4.1 Charging the battery................................................................................................................... 9
4.2 Mounting..................................................................................................................................... 9
5Operation...............................................................................................................10
5.1 Taking a measurement............................................................................................................. 10
5.2 Further functions....................................................................................................................... 12
5.2.1 Saving of measured data............................................................................................................. 12
5.2.2 Printing of measured data............................................................................................................ 13
5.2.3 View saved data........................................................................................................................... 14
5.3 Settings..................................................................................................................................... 15
5.3.1 Measurement settings.................................................................................................................. 15
5.3.2 Date and time settings ................................................................................................................. 15
5.3.3 Print settings ................................................................................................................................ 16
5.3.4 Device information ....................................................................................................................... 16
5.4 Calibration................................................................................................................................. 17
6Troubleshooting....................................................................................................17
7Additional Information..........................................................................................18
7.1 Filter information....................................................................................................................... 18
7.1.1 Traversing length ......................................................................................................................... 18
7.2 Measuring parameters.............................................................................................................. 19
7.2.1 Arithmetical mean deviation of the roughness profile Ra ............................................................ 19
7.2.2 Root mean square roughness Rq................................................................................................ 19
7.2.3 Mean Roughness depth Rz ......................................................................................................... 20
7.2.4 Total peak-to-valley height Rt...................................................................................................... 20
7.2.5 Choosing the sampling length...................................................................................................... 20
8Disposal.................................................................................................................21
9Contact...................................................................................................................21
9.1 PCE Instruments UK ................................................................................................................ 21
9.2 PCE Americas .......................................................................................................................... 21

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Thank you for purchasing a Roughness Tester from PCE Instruments.
1 Safety notes
Please read this manual carefully and completely before you use the device for the first time. The device
may only be used by qualified personnel and repaired by PCE Instruments personnel. There is no
warranty of damages or injuries caused by non-observance of the manual.
This device may only be used in the way specified in this manual. If used otherwise, this may
cause dangerous situations.
Do not expose the device to extreme temperatures, direct sunlight, extreme air humidity or
moisture.
The case should only be opened by qualified personnel of PCE Instruments.
Do not touch the instrument with wet hands.
You should not make any technical changes to the device.
The appliance should only be cleaned with a damp cloth / use only pH-neutral cleaner without
solvents or abrasives.
The device must only be used with original PCE accessories or equivalent.
Before each use, please inspect the case for damage. In case of any visible damage, please do
not use the device.
The device must not be used be used when the environmental conditions (temperature, air
humidity,…) are outside the limit values stated in the specifications.
Do not expose the instrument to explosive atmospheres.
The instrument should never be placed with the user interface facing an object (e. g. keyboard
side on a table).
Do not touch the sensor of the device and do not expose the device or its sensor to shocks or
strong vibrations. This might cause damage to the device and affect the accuracy of the readings.
Be careful when connecting or disconnecting the sensor. After removing it, store it in the provided
box.
Keep the calibration standard clean and avoid scratches on the surface.
This user's handbook is published by PCE Instruments without any guarantee.
We expressly point to our general guarantee terms which can be found in our general terms of business.
If you have any questions please contact PCE Instruments.

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2 Specifications
2.1 Technical specifications
Measured parameters
Ra, Rz/Ry(JIS), Rq, Rt/Rmax, Rp, Rv, R3z, R3y,
Rz(JIS), Rs, Rsk, Rku, Rsm, Rmr
Measuring range
Ra, Rq: 0.005 … 16 µm
Rz, R3z, Ry, Rt, Rp, Rm: 0.02 … 160 µm
Sk: 0 … 100 %
S, Sm: 1 mm
Tp: 0 … 100 %
Resolution
0.01 µm in the range of ±20 µm
0.02 µm in the range of ±40 µm
0.04 µm in the range of ±80 µm
Filter
RC, PC-RC, Gauss, D-P
Traversing length
17.5 mm
Sampling length/cutoff wavelength lr = λc
0.25, 0.8, 2.5 mm
Measuring length ln
ln = lr * n
n = 1 … 5
Measuring principle
inductive
Stylus
Natural diamond, 90° cone angle, 5 µm tip radius
Force
< 4 mN
Skid
Ruby, Ø 40 mm
Traversing speed
lr = 0.25 mm: Vt = 0.135 mm/s
lr = 0.8 mm: Vt = 0.5 mm/s
lr = 2.5 mm: Vt = 1 mm/s
Return: 1 mm/s
Accuracy
± 10 %
Repeatability
± 6 %
Graphic chart
Material ratio curve
Standards
ISO, ANSI, DIN, JIS
Power supply
Built-in 3,7 V Li-ion battery (rechargeable)
Charger: 5 V DC, 800 mA
Battery life
> 20 hours
Operating conditions
Temperature: -20 … +40 °C
Humidity: < 90 % RH
Storing conditions
Temperature: -40 … +60 °C
Humidity: < 90 RH
Dimensions
141 x 55 x 40 mm
Weight
400 g
2.2 Delivery contents
1 x roughness tester PCE-RT 2200 (incl. battery)
1 x sensor
1 x sensor protection
1 x adjustable support
1 x screw driver
1 x calibration standard
1 x bracket for calibration standard
1 x charging adaptor
1 x USB cable
1 x instruction manual
1 x carrying case

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2.3 Optional accessories
PCE-RP-100 Spare sensor
PCE-RP-110 Sensor for curved surfaces (curvature radius > 3mm)
PCE-RP-120 Sensor for holes (> Ø 2 mm)
PCE-RP-131 Sensor for grooves (width: min. 3 mm; depth: max. 10 mm)
PCE-RTS 520 Test stand
PCE-RTS 620 Test stand
3 System description
3.1 Device
1. Sensor
2. Display 3. Function keys 4. Adjustable support
5. USB interface
6. Power switch 7. Mounting hole (for adjustable support)

Sensor
1. Connection
2. Main body
3. Protective tube
4. Stylus
5. Skid
3.2 Display and function keys
Display
1. Measuring length
2. Sampling length
3. Multiplier
4. Battery status
5. Range
6. Filter
7. Measuring unit

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Function keys
Button
Name
Function
“Power” button
Press and hold for 2 seconds to turn the device
on/off.
“Stylus position” button
Press to open stylus position display.
“Start” button
Press to start a measurement.
“Parameter selection” button
Press to display more measuring parameters.
“Save/print” button
Press to save or print the readings.
“Up” button
Press to move the selection upwards.
“Down” button
Press to move the selection downwards.
“Enter/menu” button
Press to open the menu or to confirm the selection.
“Escape/cancel” button
Press to exit the menu or to cancel.
3.3 Optional accessories
Sensor for curved surfaces (PCE-RP-110)
The sensor PCE-RP-110 is suited for measuring convex or concave surfaces with a curvature radius of 3
mm or more. We recommend using the sensor in combination with the PCE-RTS 620 test stand.
1. Sensing element
2. Skid 3. Stylus 4. Measuring object
Sensor for holes (PCE-RP-120)
The sensor PCE-RP-120 is suited for measuring surfaces in holes with a diameter of 2 mm or more.

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Sensor for grooves (PCE-RP-131)
The sensor PCE-RP-131 is suited for measuring surfaces in grooves with a minimum width of 3 mm and
a maximum depth of 10 mm. We recommend using the sensor in combination with a PCE-RTS 620 test
stand.
Test stands PCE-RTS 520 and PCE-RTS 620
By using the test stands PCE-RTS 520 and PCE-RTS 620, you can improve the accuracy of your
readings. The accurate height adjustment enables you to adjust the stylus position precisely. The
roughness tester also stays stable during the whole measurement procedure.
We especially recommend using the test stands for surfaces with very low Ra values.
PCE-RTS 520 PCE-RTS 620

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4 Getting started
4.1 Charging the battery
When the battery voltage is low, a low battery indication appears on the display . In this case,
please recharge the battery as soon as possible. The battery is charged via the USB interface of the
device. You can connect the device to a computer by using the USB cable or you can use the charging
adaptor for wall sockets.
It takes about 2.5 hours to fully charge the battery. During the charging, the display shows a charging
animation.
The built-in battery is a rechargeable Lithium ion battery without memory effect. This means that you can
charge the battery at any time without affecting the operational capability of the device.
4.2 Mounting
Connecting/disconnecting the sensor
1. Protective tube
2. Main body
3. Sensor jack
To connect the sensor, hold it at its main body and plug it in the sensor jack carefully as far as it will go.
To disconnect the sensor, hold it at its main body and pull it out of the jack carefully.
Note: Do not touch the stylus of the sensor while connecting or disconnecting it. Only hold the sensor at
its main body.

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Mounting the adjustable support
Screw on the adjustable support as seen on the picture below.
1. Adjustable support
2. Screws
5 Operation
5.1 Taking a measurement
Switch the Power switch into the “On” position and press and hold the “Power” button for 2 seconds
to turn on the device. After booting up, you are on the main screen.
Measurement preparations
Check the battery voltage
Clean the measuring spot
Place the on the surface, so that it lies safely and steadily.
1. Measuring object
2. Working surface
3. Sensor
4. Measuring device
5. Adjustable support
Note: The distance L on the picture above may not be shorter than the traversing length.
Make sure, that the adjustable support is fixed properly.

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Stylus Position
Press the “Stylus position” button to go to the stylus position screen.
The stylus position is ideal when the arrow indicates “0”. Use the adjustable support to adjust the stylus
position.
Press the “Stylus position” button again to return to the main screen.
Starting a measurement
To start a measurement, press the “Start” button .
The stylus moves along the measuring distance and back to its starting position. After that, the readings
are shown on the display. Use the “Parameter selection” button to view further measuring
parameters.

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5.2 Further functions
5.2.1 Saving of measured data
To save the measured data, simply press the “Save/print” button in the main screen after a
measurement.

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5.2.2 Printing of measured data
If a printer is connected to the device, you can also print out the readings. To do so, press the “Parameter
selection” button and the “Save/print” button afterwards. The data from the last measurement is
printed out.

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5.2.3 View saved data
To view the saved data, press the “Enter/menu” button on the main screen to open the menu. Then
use the arrow buttons and to select option “2. Recorder” and press the “Enter/menu” button
again to confirm.
Next, select option “1. View” and confirm by pressing the “Enter/menu” button . Now you get to the
memory screen. Here you can see a list of all stored data.
Move selection upwards
Move selection downwards
Go to next page
Go to previous page
Choose a data record and press the “Enter/menu” button to open it.
If a printer is connected to the device, you can print out the selected record by pressing the “Save/print”
button .
Clear the memory
To clear the memory, select Option “2. Format” and press the “Enter/menu” button . A confirmation
message appears on the display. Press the “Enter/menu” button to confirm and to clear the memory
or press the „Escape/cancel“ button to cancel.

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5.3 Settings
Press the “Enter/menu” button to open the menu.
5.3.1 Measurement settings
Use the arrow buttons and to select option “1. Parameter” and press the “Enter/menu” button
to confirm. Now you get to the measurement settings.
To change a parameter, select it and press the “Enter/menu” button to change the displayed option.
5.3.2 Date and time settings
Use the arrow buttons and to select option “3. Date” and press the “Enter/menu” button to
confirm. Now you get to the date and time setting.
Press the “Enter/menu” button to adjust the setting. The selected parameter starts to flash. Now you
can use the arrow buttons and to adjust the selected parameter. Press the “Enter/menu” button
to move to the next parameter. After you adjusted all desired parameters, you can press the
“Escape/cancel” button to return to the main screen.

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5.3.3 Print settings
Use the arrow buttons and to select option “4. Print” and press the “Enter/menu” button to
confirm. Now you get to the print settings.
Here you can select, which parameters shall be printed out. To do so, select the particular parameters by
using the arrow buttons and and press the „Enter/menu“ button afterwards. “OK” means that
the selected parameter appears on the printout. “X” means that the parameter does not appear on the
printout.
5.3.4 Device information
Use the arrow buttons and to select option “6. About” and press the “Enter/menu” button to
confirm. Now you see the device information.
You can see the serial number of the device as well as the firmware version.

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5.4 Calibration
We recommend calibrating the device before each use, especially if it has not been used in a long time.
To do so, use the provided calibration standard.
Take a measurement on the calibration standard (see chapter 5.1). If the reading deviates from the
properties of the calibration standard by more than the accuracy of the device (± 10 %), you can adjust
the reading manually and calibrate the device.
To do so, press the “Enter/menu” button to open the menu. Then use the arrow buttons and
to select option “4. Calibrate” and press the “Enter/menu” button to confirm.
Use the arrow buttons and to adjust the Ra value on the screen to the properties of the
calibration standard. Once you are done, press the “Enter/menu” button to confirm.
Note: The calibration standard has its Ra value engraved on the top side.
6 Troubleshooting
Error / error message
Possible cause
Possible fixing
Motor error
Motor is stuck
Restart device
Out of range
1. Surface properties exceed the
measuring range of the device.
2. Stylus is out of position.
Increase the Measuring distance
Adjust stylus position before the
measurement.
No test data
Measurement cannot be started.
Restart device
Deviation of the reading is bigger
than the accuracy
Device has not been calibrated /
has not been calibrated properly
Calibrate device

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7 Additional Information
7.1 Filter information
Filtered profile: The unfiltered primary profile is filtered. The roughness profile (filtered profile) is
separated from the waviness profile.
D-P (direct profile): Adopt centreline from least square algorithm.
RC filter: analogue 2 RC filter with phase difference
PC-RC filter: RC filter with phase correction
Gauss filter: ISO 11562
7.1.1 Traversing length
RC filter
Gauss filter
Approach
path
Pre-
travel
Measuring
length
Traversing
length
Origin
End
Approach
path
Pre-
travel
Measuring
length
Traversing
length
Origin
End
Post-
travel

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PC-RC filter
7.2 Measuring parameters
7.2.1 Arithmetical mean deviation of the roughness profile Ra
Ra is the arithmetic mean of the absolute values of profile deviation from the centreline within the
measuring length.
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󰇛󰇜


7.2.2 Root mean square roughness Rq
Rq is the square root of the sum of the squares of the individual heights and depths from the centreline.

󰇛󰇜


Approach
path
Pre-
travel
Measuring
length
Traversing
length
Origin
End
Post-
travel

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7.2.3 Mean Roughness depth Rz
Rz is the sum of the height Zp of the highest profile peak from the centreline and depth Zv of the deepest
profile valley from the centreline within the measuring length.
7.2.4 Total peak-to-valley height Rt
Rt is the sum of the height of the highest peak Zp and the depth of the deepest valley Zv over the
measuring length.
7.2.5 Choosing the sampling length
Ra (µm)
Rz (µm)
Einzelmessstrecke
lr=λc (mm)
> 5 … 10
< 20 … 40
2.5
>2.5 … 5
> 10 … 20
> 1.25 … 2.5
> 6.3 … 10
0.8
> 0.63 … 1.25
> 3.2 … 6.3
> 0.32 … 0.63
> 1.6 … 3.2
> 0.25 … 0.32
> 1.25 … 1.6
0.25
> 0.20 … 0.25
> 0.16 … 0.20
> 1.0 … 1.25
> 0.8 … 1.0
> 0.125 … 0.16
> 0.1 … 0.125
> 0.08 … 0.1
> 0.63 … 0.8
> 0.5 … 0.63
> 0.4 … 0.5
> 0.063 … 0.08
> 0.05 … 0.063
> 0.04 … 0.05
> 0.32 … 0.4
> 0.25 … 0.32
> 0.2 … 0.25
> 0.032 … 0.04
> 0.025 … 0.032
> 0.02 … 0.025
> 0.16 … 0.2
> 0.125 … 0.16
> 0.1 … 0.125