PCE Americas PCE-RT 10 Manual de usuario

MANUAL

SURFACE ROUGHNESS TESTER

PCE-RT 10

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

PCE Americas Inc.

711 Commerce Way

Suite 8

Jupiter

FL-33458

USA

From outside US: +1

Tel: (561) 320-9162

Fax: (561) 320-9176

[email protected]

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

[email protected]

TABLE OF CONTENTS

1. FEATURES....................................................1

2. SPECIFICATIONS..........................................2

3. FRONT PANEL DESCRIPTIONS AND

NAMES OF EACH PARTS...............................4

4. MEASURING PROCEDURE............................ 5

5. HOW TO SET THE EVALUATION LENGTH........7

6. HOW TO CALIBRATE THE TESTER................. 8

7.COMMUNICATE WITH PC................................8

8.GENERAL MAINTENANCE.............................. 8

9.REFERENCES............................................... 9

10.BATTERY REPLACEMENT ...........................10

1. FEATURES

This instrument is compatible with four standards

of ISO, DIN, ANSI and JIS and is widely used in

production site to measure surface roughness of

various machinery-processed parts, calculate

corresponding parameters according to selected

measuring conditions and clearly display all

measurement parameters. 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 inside the

tester. The sensor gets the surface roughness 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

* Highly sophisticated inductance sensor.

* Small in size, light in weight and easy to use.

* Can communicate with PC computer for

statistics, printing and analysing 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.

CAL

Ra/Rz Um/Uin

Itself off about 5 minutes after the last key

operation.

*Metric /Imperial Conversion

2. SPECIFICATIONS

Display: 4 digits, 10mm LCD, with blue backlight

Parameters: Ra, Rz

Display Range

Ra: 0.05-10.00um

Rz: 0.1-50.0um

Accuracy: Not more than ±15%

Fluctuation of display value: Not more than 10%

Sensor :

Test Principle: Inductance type

Radius of Probe Pin: 10µm

Material of Probe Pin: Diamond

Measurement Force of Probe: 16mN(1.6gf)

Probe Angle: 90°

Vertical Radius of Guiding Head: 48mm

Maximum driving stroke: 12.5mm/0.5inch

Cutoff length : 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

Resolution : 0.001um if reading＜10um

0.01um if 10um≤reading＜100um

0.1um if reading ≥100um

Evaluation length: 1~2 cut off optional

Power battery: 4x1.5vAA/UM 3

Operating conditions: Temp. 0~40℃

Humidity <80%

Size：128×80×30mm

Weight: about 280 g

Standard Accessories：

Carrying case

Main unit

Standard sensor

Standard sample plate

Operation manual

Screwdriver

Optional Accessories

Cable & software for RS232C

3. FRONT PANEL DESCRIPTIONS AND NAMES

OF EACH PARTS

3-8

3-10

3-9

Fig. 3-1

3-11

3-12

3-13

3-11

SURFACE ROUGHNESS TESTER

0.25mm

3-1

3-2

3-3

3-4

3-5

3-6

3-7

CAL

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. Before

taking measurement, preparations have to be made

and checked.

C. To check if the parameter selected is right. If not,

depress the key to select.

3-1

3-2

3-3

3-4

3-5

3-6

3-7

3-8

3-9

3-10

3-11

3-12

3-13

Calibration

Measurement

Position pointer

Parameters

Parameter Key & Up Key

CAL Key

Power Key

Battery

Unit

Cutoff

Start Key

Cutoff Key

um/uinch Key & Down Key

Ra/Rz

CUTOFF

Fig.4-1

D. To check if the cutoff length selected is right. if not,

depress the key to select. For the recommended

cut-off length, please see the table in 10.7on

page 13.

E. To check if the measurement unit selected is

right. If not, just press the key to switch between

the metric system and the British system.

F. To clear the surface of the part to be measured.

G. Refer to Figure 4-1 and Figure 4-2 to place the

instrument correctly, stably and reliably on the

surface to be measured.

H. Refer to Figure 4-2, the sliding trail of the

sensor must be vertical to the direction of process

line of the measured surface.

I. Adjustable leg and sheath of sensor

Um/Uin

Fig.4-2

4.2 Measuring

After preparations is done, just press Start key to

measureIf measuring conditions are not to be changed.

Firstly,you will see the “—” on the display and the probe

ismoving forward and sampling. Then you will see the

probe stop sliding and move backward. The

measurement result shows on the display after the

probe stop moving. You can browse measurement

values of different parameters once depressing the key

5. HOW TO SET THE EVALUATION LENGTH

To set or browse the evaluation length, just depress the

key and not release it until showing on the 'LEN'

display. It takes about 6 seconds from starting pressing

Ra/Rz

CAL

SURFACE ROUGHNESS TESTER

0.25mm

CAL

the key CAL. Then change the evaluationlength to the

desired length among 1~2Lby the key or . To save

or quit, just press any key except the key or .

6.HOW TO CALIBRATE THE TESTER

6.1 To enter the calibration state, just depressing the

key , The calibration state is marked by CAL“ ”.

6.2Take a measurement based on the Standard sample.

Contrast the measuring value with the value of standard

sample plate based on the same parameter.

6.3Depress the key or to adjust the reading to the

standard value.

6.4Just repeat 6.2 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

delivery to ensure that the display value error is less

than 10%. The user is recommended not to use the

calibration function too often.

7. COMMUNICATE WITH PC

This tester can communicate with PC computer by use

of the optional communicating cable and software. For

detailed information, please see the instructions with

the optional software.

8. GENERAL MAINTENANCE

8.1 Avoid crashes, intensive vibration, heavy dust,

humidity, grease stains and strong magnetic fields.

8.2 The sensor is a precise part and should be protected

carefully. It is recommended to put it back in the box

after each operation.

8.3 Protect the standard sample plate belonging to the

instrument carefully to avoid calibration faults caused

Ra/Rz Um/Uin

CAL

Ra/Rz Um/Uin

by scratches.

9. REFERENCES

9.1 Central line

This tester adopts minimum central line of Least

Square Algorithm.

9.2 Definition of roughness parameter

9.2.1 Ra arithmetical mean deviation of profile

Arithmetic value of mean deviation of profile

within sampling length.

9.2.2 Rz maximum height of profile

Sum of height of the largest profile peak height

Ypmax and the largest profile valley depth Yvmax

within a sampling length.

Sampling Length(l)

Y(x)

( ) dxxY

10. BATTERY REPLACEMENT

10.1 When it is necessary to replace the battery,

i.e battery voltage less then approx 5v, the battery

symbol ‘ ’ will appear on the Display.

10.2 Slide the Battery cover(3-6)away

from the instrument and remove the

Traversing length

l×n

Approach

length

Pre-travel

length

Evaluation length

Origin Normal measuring

position

9.3 Code Standard Name

ISO 4287 International Standard

DIN 4768(2010-07-00) German Standard

JIS B601 Japanese Industrial Standard

ANSI B46.1 American Standard

9.4 Traversing length

L=sampling length

n=number of sampling length

l x n=evaluation length

Cutoff length

(mm)

batteries.

10.3 Install the batteries (4x1.5v AA/UM 3)

correctly into the case.

Cutoff length recommended

Please see the table on page 13.

＞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

(μm)

＞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

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