PCE Instruments PCE-RT 1200 User Manual

This Surface Roughness Tester is small in size, light in weight, easy to carry. Although complex and advanced, it is convenient to use and operate. Its ruggedness will allow many years of use if proper operating techniques are followed. Please read the following instructions carefully and always keep this manual within easy reach.
Square Algorithm.
10.2 Central line This tester adopts minimum central line of Least Square Algorithm.
10.3 Length of driving stroke
10.3.1 RC lter
l
l 5
l
Driving Stroke
10.3.2 PC-RC lter
Driving Stroke
l l 5
l
l
10.3.3 GAUSS lter
l/2l 5
l/2
l
Driving Stroke
10.3.4 D-P lter
Driving Stroke
l 5
l
10.4 Denition of roughness parameter
10.4.1 Ra arithmetical mean deviation of prole Arithmetic value of mean deviation of prole within sampling length.
13
*The tester can memorize 7 groups of measurement results and measuring conditions for later use or download to PC. *Metric /conversion
2 SPECIFICATIONS
Display 4 digits, 10 mm LCD, with blue backlight Parameters: Ra, Rz, Rq, Rt Measuring Range Ra, Rq: 0.005-16.00um/0.020-62.99uinch Rz,Rt: 0.020-160.0um/0.078-629.9uinch Accuracy: Not more than ± 10% Fluctuation of display value: Not more than 6% Sensor : Test Principle: Inductance type Radius of Probe Pin: 5 µm Material of Probe Pin: Diamond Dynamo-measurement of Probe: 4mN(0.4gf) Probe Angle: 90 ° Vertical Radius of Guiding Head: 48mm Maximum driving stroke: 17.5mm/0.7inch Cuto length (l): 0.25mm / 0.8mm / 2.5mm optional Driving speed: sampling length = 0.25mm Vt=0.135mm/s sampling length = 0.8mm Vt=0.5mm/s sampling length = 2.5mm Vt=1mm/s returning Vt=1mm/s Prole digital lter Filtered Prole: RC Filtered Prole: PC-RC Filtered Prole: Gauss Non-Filtered Prole: D-P
2
15
10.5 Fault information
Err1 no data stored for browsing Err2 to be used for calibration Err3 the value is too small to continue to decrease.
10.6 Code Standard Name
ISO 4287 International Standard DIN 4768 German Standard JIS B601 Japanese Industrial Standard ANSI B46.1 American Standard
the Ra value of the standard sample is too small
0.63~0.8
0.5~0.63
0.4~0.5
0.32~0.4
0.25~0.32
0.2~0.25
0.16~0.2
0.125~0.16
0.1~0.125
2.5
0.8
0.25
0.63~1.25
0.32~0.63
0.25~0.32
Ra
( m)
Rz
( m)
Cuto length
(mm)
5~10
2.5~5
1.25~2.5
0.20~0.25
0.16~0.20
0.125~0.16
0.1~0.125
0.08~0.1
0.063~0.08
0.05~0.063
0.04~0.05
0.032~0.04
0.025~0.032
0.02~0.025
3.2~6.3
1.6~3.2
1.25~1.6
20~40 10~20
6.3~10
1.0~1.25
0.8~1.0
10.7 Cuto length recommended
PCE Americas Inc. 711 Commerce Way Suite 8 Jupiter FL-33458 USA From outside US: +1 Tel: (561) 320-9162 Fax: (561) 320-9176 info@pce-americas.com
www.pce-instruments.com/english
www.pce-instruments.com
PCE Instruments UK Ltd.
Units 12/13
Southpoint Business Park
Ensign way
Hampshire / Southampton
United Kingdom, SO31 4RF
From outside UK: +44
Tel: (0) 2380 98703 0
Fax: (0) 2380 98703 9
info@pce-instruments.com
1.FEATURES
This instrument is compatible with four standards of
site to measure surface roughness of various machinery-processed parts, calculate corresponding
and clearly display all measurement parameter. When measuring the roughness of a surface, the sensor is placed on the surface and then uniformly slides along the surface by driving the mechanism
by the sharp built-in probe. This roughness causes displacement of the probe which results in change of inductive amount of induction coils so as to generate analogue signal, which is in proportion to the surface roughness at output end of phase-sensitive rectifier. The exclusive DSP processes and calculates and then outputs the measurement results on LCD.
* Multiple parameter measurement: Ra, Rz, Rq, Rt * Highly sophisticated inductance sensor * Four wave filtering methods : RC, PC-RC,
GAUSS and D-P * Built-in lithium ion chargeable battery and control circuit with high capacity
* Small in size, light in weight and easy to use * Can communicate with PC computer for statistics,
print and analyz by the optional cable and the software for RS232C interface. *Manual or automatic shut down. The tester can be switched off by pressing the Power key at any time. On the other hand, the tester will power itself off about 5 minutes after the last key operation.
ISO, DIN, ANSI and JIS and is widely used in production
parameters according to selected measuring conditions
inside the tester. The sensor gets the surface roughness
1
a
=
_
=
14
0
ll
Ra
y
i
z
=
_
V
=
+
=
5
10.4.2 Rz ten point height of irregularities The average of the sum of five maximum profile peaks and the average of five maximum profile valleys within the sampling length.
10.4.4 Rt total peak-to-valley height Rt is the sum of maximum height of the profile peak and maximum depth of the profile valley for the evaluation length.
=
( )
_
=
_
10.4.3 Rq root-mean-square deviation of profile Root-mean-square of profile deviation within the sampling length, shown as the following function
0
R
t
l
y
imax
y
umax
12
8. COMMUNICATE WITH PC
8.1Install the optional RS232C software to the PC.
8.2Connect the tester to the COM port of the PC with the optional RS232 cable.
8.3Run the software on the desktop and select the COM port in the system settings.
8.4Click the button of data collection, then click the button of Begin/Continue.
8.5 To download the groups stored in the Memory, just press the key .
9. GENERAL MAINTENANCE
*Avoid crashes, intensive vibration, heavy dust, humidity, grease stains and strong magnetic fields; *The sensor is a precise part and should be protected carefully. It is recommended to put it back in the box after each operation; * Protect the standard sample plate belonging to the instrument carefully to avoid calibration faults caused by scratches.
10.REFERENCES
10.1 Filter a. RC filter: traditional 2-stage filter with phase difference; b. PC-RC filter: RC filter with phase-correction; c. Gauss filter: DIN4777
7.2.4 Repeat 7.2.2 to 7.2.3 till the result is satisfactory.
Movement of the probe.
7.2.3 Use the screwdriver enclosed to adjust the resistance and let the reading on the display close to the value of Standard sample plate.
The above procedures restore the factory settings.
7.2.5After the factory settings, you have to calibrate the tester again. Please refer the part 6.
d. D-P non-filtered profile: adopt central line of Least
READ
Resolution :
Evaluation length : 5 cut-off Power Li-ion battery rechargeable Operating condition: Temp. 0~50 Humidity <80% Size 140x52x48 mm (5.5x2.0x1.9 inch) Weight: about 420 g Standard Accessories Carrying case Main unit Standard sensor Standard sample plate Power adapter Operation manual Screwdriver
1 pc. 1 pc.
1 pc. 1 pc. 1 pc. 1 pc.
1 pc.
Fig. 3.1
SURFACE ROUGHNESS TESTER
READREAD
SAVESAVE
RANGERANGE
DEL
MENU
DEL
MENU
CUTOFFCUTOFF
STARTSTART
RaRz...RaRz...
CAL CAL
PC RCPC RC
GAUSSGAUSS
D PD P
R
RRaaRR RR RR
zz
qq
tt
¡À¡À
20um20um
¡À¡À
40um40um 80um80um
¡À
umum
uinuin
L/minL/min
L/HRL/HR
2.5mm2.5mm
0.8mm0.8mm
0.25mm0.25mm
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
3.1 Cutoff
3.2 Parameter
3.3 Display
3.4 Power
3.5 Start
3.6 Range
3.7 Up/Save
3.8 Down/Read
3.9 Delete/Menu
3
Optional accessories Cable & software for RS232C
3.FRONT PANEL DESCRIPTIONS AND
NAMES OF EACH PARTS
3.1Key descriptions
1 pc. 1 pc.
Adjustable leg
Sheath of sensor
0.001 m if reading 10 m
0.01 m if 10 m reading 100 m
0.1 m if reading 100 m
CALCAL
PC RCPC RC
GAUSSGAUSS
D PD P
R
RRaaRR RR RR
zz
qq
tt
¡À¡À
20um20um
¡À¡À
40um40um 80um80um
¡À
umum
uinuin
2.5mm2.5mm
0.8mm0.8mm
0.25mm0.25mm
3.19
3.20
Fig. 3.5
3.23
3.21
3.22
3.24
3.25
3.26
3.19 Filter
3.20 Calibration
3.21 Measurement
3.22 Position pointer
3.23 Browsing
3.24 Memory
3.25 Parameters
3.26 Battery
3.3installation and unloading of sensor To install, hold the main part of the sensor by hand, push it into connection sheath at the bottom of the
pull it out. a.The probe of the sensor is the main part of this instrument and requires close attention
not be touched in order to avoid damage which can affect measurement results. c. Connection of the sensor should be reliable during installation.
b. During installation and unloading, the probe should
of sensor or the root of protective sheath andslowly
push to the end ofsheath. To unload, hold the main part
5
3.29
3.28
3.27
3.27 Unit
3.28 Cutoff
3.29 Ranges
instrument as shown in Figure 3.4 and then slightly
8
Length, please see the table in 10.7on page 15. E. To check if the profile filter selected is right. if not,
or key. F. To check if the measurement unit selected is right.
To switch between the metric system and the British system. To quit, just press the any key other than key or key. G. To clear the surface of the part to be measured; H. Refer to Figure 3.7 and Figure 3.8 to place the
surface to be measured. Adjust I. Refer to Figure 3.8: the sliding trail of the sensor must be vertical to the direction of process line of the measured surface. J. Adjustable leg and sheath of sensor
Instrument correctly, stable and reliably on the
the bottom surface of the instrument, the sheath of sensor
complete measurement (as shown in 3.9).
if not, depressing the key and not releasing it till
starting depressing key . and then pressing or
'UNIT' on the Display. It takes about 8 seconds from
and not releasing it till 'FILT' on the Display . It takes about 4 seconds from starting Depressing . and then pressing key or key to cycle between RC,PC-RC,Gauss,D-P or vice versa. To quit, just press the any key other than key
depressing the
and adjustable leg can be used for auxiliary support to
When the measured surface of the part is smaller than
DEL
MENU
DEL
MENU
READ
SAVE
SAVE
READ
READ
READ
DEL
MENU
DEL
MENU
SAVE
SAVE
After preparations is done, just press Start key to measure
probe stop sliding and move backward. The measurement result shows on the display after the probe stop moving.
4.2 Measuring
4.2.1 Save the measurement results to the tester for later use
4.2.2 How to browse the different parameters
In state, you can browse different parameters. The corresponding parameter and its value show on the display once depressing the key
4.2.3 Delete the measurement results
to automatically. On the other hand, the new measurement results will replace the old ones if pressing the Start key in state.
5.HOW TO BROWSE THE MEMORIZED DATA
No matter in state or state, you can browse
the memorized data by depressing the key . The browsing state is marked in on display. When in
the key or key . The serial number of the group
depressing the key . Then the symbol changes
state, you can browse different groups by depressing
10
After measuring, you will see the original becomes
the key .
Then the symbol M changes to M
if measuring conditions are not to be changed. Firstly, you will see the on the display and the probe is moving forward and sampling. Then you will see the
the M . in such a state, you can save this group of results including Ra,Rz,Rq,Rt and measurement conditions to the memory of the tester by depressing
automatically while the number of memorized groups increases 1.
In state, you can delete this group of results by
SAVE
RaRz...
DEL
MENU
READ
READ
SAVE
M
M
M
R
R
M
M
M
M
M
---
7
measurement, preparations have to be made and checked.
to select.For the recommended cutoff
4.MEASURING PROCEDURES
4.1 Preparations for measurement A. Switch on to test if the battery voltage is normal. B. The instrument automatically restores conditions of the last measurement before it is turned off since these conditions are automatically stored. Meanwhile, the second line of 2 digits on display
C. To check if the range selected is right. if not, depress the key to select. D. To check if the cutoff length selected is right. if not,
shows the groups stored in the memory. Before taking
depress the key
Part while charging. B. The meanings of battery indicators are: Indicates normal voltage and measurement can be carried out;
should be charged as soon as possible;
A. Layout of connection lines shouldn t affect measuring
The black part inside prompt shows capacity of Battery; Indicates too-low voltage and battery
charging so that it is not necessary to turn it off. The
indicates that battery is full.
C. Relative high noises of the power source can affect measurement to weak signal to some extent when battery is being charged; D. The instrument needs to monitor the process of
instrument will turn on automatically even when switched off.
RANGE
CUTOFF
3.2 Names of each parts
3.10 3.11 3.12
Fig. 3.2
3.10 Sheath of probe
3.11 Front panel
3.12 Adjustable leg
3.13 Stylus
Fig. 3.3
3.16
3.15 Main bady
3.14 Protection sleeve
3.13 3.14 3.15
3.16 Socket
3.18
3.17
Fig. 3.4
3.17 Connection sheath
3.18 probe
4
SURFACE ROUGHNESS TESTER
READ
SAVE
RANGE
DEL
MENU
CUTOFF
START
RaRz...
PC RCPC RC
RR
zz
¡À¡À
40um40um
umum
0.8mm0.8mm
90
Fig.3.8
Fig.3.9
3.38
3.37
3.36
3.35
3.35 Roughness tester
3.36 Sheath of probe
3.37 Item to be measured
3.39 Adjustable leg 9
Fig.3.7
3.38 Working table
3.39
indications shown in Figure 3.6: the power adapter should be plugged into the power socket of the
220V 50Hz and charging of the battery will begin.
current, charging time of up to 2.5 hours. This instrument uses a lithium ion chargeable battery.
the normal operation of the Figure 3.6 Connection of Power Adapter
3.4 Power adapter and charging of battery When the battery voltage is too low (which is indicated
by the battery symbol on the screen), the instrument
Should be charged as soon as possible. Follow the
Input voltage for power adapter is AC 220V with DC
instrument.
3.30
3.31
3.32
3.33
3.30 Computer
3.31 RS-232 port to PC COM
3.32 Power adaptor
3.33 DC power socket
Fig.3.6
6
instrument. The power adapter should be connected to
6V of output, about 500mA of maximum charge
3.34
3.34 RS-232 socket
NOTES: See next page
Charging can be fulfilled at any time without affecting
6.2Take a measurement based on the Standard sample
standard sample plate based on the same parameter.
6.3Depress the key or to adjust the reading to the standard value.
6.4Just repeat 6.1 to 6.3 till the accuracy is ok.
6.5To quit, just press any key other than START key.
6.6 The instrument has been thoroughly tested before
Calibration function too often.
7.
7.1 When to restore
any more.
7.2How to restore
7.2.1 Just depressing the key and not releasing it
by ' CAL' , please see the Fig. 6-1.
7.2.2 press the START key on the Standard sample
. Thecalibration state is marked by 'CAL'.
shows on the display. For each group, you can still browse different parameters. The corresponding parameter and its value show on the display once depressing the key .
6.HOW TO CALIBRATE THE TESTER
6.1 To enter the calibration state, just depressing the
plate. During the probe moves forward, you will see the different reading on the display varying with the
till 'FAC' on the Display . It is about 16 seconds from starting depressing key . This state is also marked
It is necessary to restore the factory settings when a new probe is installed or the tester could not measure
delivery to ensure that the display value error is less than ±10%. The user is recommended not to use the
11
plate.Contrast the measuring value with the value of
Key and not releasing it till 'CAL' on the Display . It takes about 12 seconds from starting depressing
HOW TO RESTORE THE FACTORY SETTINGS.
RaRz...
DEL
MENU
READ
SAVE
DEL
MENU
DEL
MENU
DEL
MENU
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