MITECH MR200 User Manual
MITECH SURFACE
ROUGHNESS TESTER
MR200
User’s Manual
MITECH CO.,LTD.
www.mitech-ndt.com
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CONTENTS
1 Overview
..................................................................................................................................................................
2
1.1 Technical Parameters................................................................................................................................. 2
1.2 Functions &Features...................................................................................................................................2
1.3 Working Principle.........................................................................................................................................3
1.4 Instrument Configuration............................................................................................................................3
1.5 Working Conditions..................................................................................................................................... 4
2 Structure and Outline
..........................................................................................................................................
4
2.1 Main Body Structure................................................................................................................................... 4
2.2 Probe Structure............................................................................................................................................4
2.3 Display...........................................................................................................................................................5
2.4 Keypad Definitions...................................................................................................................................... 5
3. Operation
...............................................................................................................................................................
5
3.1 Connecting Probe........................................................................................................................................5
3.2 Power On/Off................................................................................................................................................5
3.3 Battery Charging..........................................................................................................................................6
3.4 Parameter Setting........................................................................................................................................6
3.5 Preparation Before Measurement............................................................................................................ 7
3.6 Start Measurement......................................................................................................................................8
3.7 Display Readings.........................................................................................................................................9
3.8 Save/Read Measurement Results..........................................................................................................10
3.9 Print Measurement Results..................................................................................................................... 10
3.10 Communication With PC........................................................................................................................ 11
3.11 Remote Control and Measurement......................................................................................................12
3.12 SD Card Instructions...............................................................................................................................12
4 Software Information
.........................................................................................................................................
12
5 Maintenance
.........................................................................................................................................................
12
5.1 Probe........................................................................................................................................................... 12
5.2 Main Unit.....................................................................................................................................................12
5.3 Battery......................................................................................................................................................... 12
5.4 Calibration Specimen................................................................................................................................12
5.5 Maintenance Notice.................................................................................................................................. 12
6 Troubleshooting
..................................................................................................................................................
13
7 Optional Accessories
........................................................................................................................................
13
7.1 Height Support & Probe Sheath............................................................................................................. 13
Height Support and Probe Sheath................................................................................................................ 13
7.2 Height Lifting Pillar.................................................................................................................................... 13
7.3 Standard Probe..........................................................................................................................................14
7.4 Curved Surface Probe.............................................................................................................................. 14
7.5 Deep Groove Probe.................................................................................................................................. 15
7.6 Small Hole Probe.......................................................................................................................................16
7.7 Extension Bar.............................................................................................................................................17
8 References
............................................................................................................................................................
17
8.1Terms............................................................................................................................................................ 17
8.2 Traversing Length of Filters..................................................................................................................... 17
8.3 Parameters Definitions............................................................................................................................. 18
8.4 Recommended Table of Sampling Length............................................................................................20
Appendix
..................................................................................................................................................................
21
Appendix I: Standard Code and Name Table..............................................................................................21
Appendix II: Roughness Parameters Display Range.................................................................................21
User Notes
................................................................................................................................................................
22
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1 Overview
The Portable surface roughness tester MR200 could give a fast, accurate test of the roughness, applied
on work site and mobile measurement. It is portable to carry, easy to operate, reliable to test and full
functional advantages. Adopted 2.7 inch OLED Screen, equipped with wireless communication module,
Micro-USB port, standard Bluetooth module and SD card, it can not only achieve wireless remote control
and measure but also can connect with PC, wireless Bluetooth printer and memorize more data.
1.1 Technical Parameters
Sheet1-1
Name
Content
Measurem
ent Range
Z axis(Vertical)
320μm(Ra=80μm)
X axis(Horizontal)
17.5mm
Resolution
Z axis(Vertical)
0．01μm/±20μm
0．02μm/±40μm
0．04μm/±80μm
0．08μm/±160μm
Measurem
ent Item
Parameter
Ra, Rq, Rz, Rt, Rp, Rv, RS, RSm, Rz(JIS), Ry(JIS), RSk, R3z, Rmax,
Rpc, Rmr, Rku, RΔa, RΔq, Rδc, Ry
Rk, Rpk, Rvk, Mr1, Mr2, A1, A2, V0
Standard
ISO, ANSI, DIN, JIS
Graph
Roughness profile, Bearing ratio curve, Direct profile
Filter
RC, PC-RC, Gauss, D-P
Sample Length(Lr)
0.25,0.8,2.5mm
Assessment Length(Ln)
Ln= Lr×n, n=1~5
Probe
Measure principle
Displacement Differential Inductance
Stylus
Natural diamond, 90 cone angle, 5μmTip Radius
Measured force
<4mN
Guide head
Ruby, Longitudinal radius 40mm
Traversing speed
Lr=0.25,Vt=0.15mm/s
Lr=0.8, Vt=0. 5mm/s
Lr=2.5, Vt=1mm/s
Return, Vt=1mm/s
1.2 Functions &Features
28 Measuring parameters: Ra, Rq, Rz, Rt, Rp, Rv, RS, RSm, Rz(JIS), Ry(JIS), RSk, R3z, Rmax,
RPc, Rmr, Rku, RΔa, RΔq, Rδc, Ry; Rk, Rpk, Rvk, Mr1, Mr2, A1, A2, V0;
Adopt 320μm high accuracy inductance probe;
Four filter methods of RC, PC-RC, GAUSS, D-P ;
Compatible with four standards ISO, DIN, ANSI, JIS;
Adopt 2.7 inch 128×64 dot OLED display,without back-light and dead spot. Capable of showing
all parameters, profile graph and Chinese/English menu;
Adopt the most popular DSP chip to control and process data;
Build-in storage can memorize 20 sets of complete measurement data;
External SD Card can expand mass data storage;
Build-in wireless remote control module to remote control measurement;
Build-in Bluetooth module can be connected with the Bluetooth printer to print all the
parameters and profiles;
Build-in Micro-USB port, can communicate with PC make measurement results analysis by
data processing software;
Build-in lithium-polymer rechargeable battery and charging protection circuit;
Mechatronics design, smaller and portable to carry;
Automatic shut down for power saving, each operation step has a hit message;
Full accessories, options for curve surface probe, deep groove probe, small hole probe, tiny
hole probe, tooth surface probe, small pillar, height adjust platform, extension bar, lateral transfer
rod etc.
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1.3 Working Principle
This instrument adopts needle scanning method to test the surface roughness of the work piece.
When measuring roughness of part surface, the probe is placed on the surface of the part and then
tracing the surface at constant rate. The probe acquires the surface roughness by the sharp stylus in
probe. The roughness causes displacement of probe which results in change of inductive value of
induction coils thus generate analogue signal which is in proportion to surface roughness at output end
of phase-sensitive rectifier. This signal enters data collection system after amplification and level
conversion. After that, those collected data are processed with digital filtering and parameter calculation
by ARM chip and the measuring result can be read on OLED display. The results can be printed by
Bluetooth printer.
1.4 Instrument Configuration
Sheet1-2
No.
Item
QTY
Remarks
Standard
Configuration
1
M200 Main Unit
1
2
Standard Probe
1
3
Roughness
Specimen
1
4
Charger
1
5
USB Cable
1
6
Remote Control
1
7
Straight
Screwdriver
1
8
Specimen Plate
1
9
User’s Manual
1
10
Packing List
1
11
Product Certificate
1
12
Warranty Card
1
Optional
Configuration
1
Bluetooth Printer
1
2
AC Adapter
1
3
Printer Paper
1
Notes：
Please check the instrument and spare parts when getting the instrument. If anything missing
please contact the manufacturer.
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1.5 Working Conditions
Ambient temperature: -20℃～＋50℃;
Storage temperature: -30℃～＋70℃;
Relative humidity: ≤90％;
The surrounding environment should avoid of vibration, strong magnetic field, corrosive
medium and heavy dust.
2 Structure and Outline
2.1 Main Body Structure
2.2 Probe Structure
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2.3 Display
2.4 Keypad Definitions
Sheet2-1
Start key
Used to start measuring.
Up arrow/Parameter key
Press this key to enter the parameter item, press the set key
to exit.
Down arrow/Storage key
Press this key to enter saving record interface.
Left arrow/Graphic key
Press this key to enter graphic item, showing curved, graphic,
bearing ratio curve and others.
Right arrow/Print key
Press this key to start Bluetooth printer for printing.
Set/Menu key
Press this key to enter setting, long press to enter main
menu.
Enter key
Press this key to show the location of the stylus, press again
to exit. In other interface, this key is used to confirm the
modify result or exit the present interface.
Notes：
In other interface, the unified regulation for up, down, left, right four arrows function keys is as
follows: up and down arrows to switch for selecting item; left and right arrows to adjust and
setting specific figures and values.
3. Operation
3.1 Connecting Probe
To ensure the stylus down, the probe is plugged into the host connection socket and pushed lightly to the
end. When pulling out, first pull out the probe from the connection socket, then take it out slowly from the
driver. The entire operation should avoid damage to the probe.
Notes:
The probe stylus is a key part of the instrument. In the plugging in and pulling out process, we
should be careful not to touch the stylus to avoid damage.
3.2 Power On/Off
The instrument switch located in the lower-left corner in panel showed as 2.1 instrument side back
figure.
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3.3 Battery Charging
When MR200 appears the low voltage tips or could not boot, it should be charging to the promptly. When
charging, put the charger into the micro-USB port, then put the charger into the socket. This instrument
adopts Li-poly battery, without memory effect, could be charged at any time. Red light indicates charging,
the green light indicates charging finished. The complete charging time is approximate 3-4 hours. It may
damage the battery for charging long time. When the instrument leaves the factory, the battery switch is
off.
3.4 Parameter Setting
In the main interface, press "Settings button" enter the main menu
Main Interface
3.4.1Measuring Conditions Setting
Measurement conditions setting by two ways: Quick settings and Menu settings.
Quick Setting: In the main menu, press "Settings button" enter quick setup mode, follow the cursor,
modify the measurement conditions through the up, down, right and left arrows, press the "Enter button"
to confirm exit.
Menu Setting: In the main menu mode, press "Settings button" enter the menu setting mode, select
"Measurement condition setting", you can modify the "Sample length", "Evaluation length", "Range",
"Filter", "Standard", " Parameters "," C (rmr) "," C (rpc) "," Rmr (rδc) "," Unit of measurement ".
Main Menu Conditions Setting
3.4.2 System Setting
In main interface, long press setting to enter menu setting, choose system setting, enter the sub-menu.
In this menu, you can set: “Key Buz”, “Warning Buz”, “Power Save”, “Auto Off”, “Time Calibration”, “Low
Noise Test”, “Display Test”, “Remote Matching”, “Surface Type Selection”. Press enter key to exit.
3.4.3 Time Setting
Clock setting is always showed when first use, press left (right), up(down) to set the clock. When
finishing, press the enter key to exit.
If the time is wrong, adjust the clock as follows：
1 Enter the main interface
The interface is the main interface. MR200 always shows this interface before and after the measuring.
Includes the main measurement parameters and conditions of the measurement information, such as
sample length, assessment of the length, range, filter and measurement units.
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