PCE Instruments PCE-2800 Manuale utente

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]

1 Overview 3

1.1 Advantages 3

1.2 Main Application &Testing Range 3

1.2.1 Main Application 3

1.2.2 Testing Range 3

1.3 Technical Specifications 4

1.4 Configuration 5

1.5 Working Conditions5

1.6 Safety Instructions 5

2 Structure Feature &Testing Principle 6

2.1 Structure Feature 6

2.1.1 The Hardness Tester Appearance 6

2.1.2 Parts of the Main body 6

2.1.3 D Type Impact Device 7

2.1.4 Different Types of Impact Device 7

2.2 Main Screen 7

2.3 Keypad Definitions 8

2.4 Leeb Hardness Testing Principle 9

3 Preparation 9

3.1 Instrument Preparation and Inspection 9

3.2 Impact Device Selection 9

3.3 Preparation of the Sample Surface 10

4 Testing Program 11

4.1 Start-Up 11

4.2 Loading 11

4.3 Localization 11

4.4 Testing 11

4.5 Read Measured Value 12

4.6 Notification 12

5 Operation Detail 13

5.1 Power On/Off 13

5.2 Material Setting 13

5.3 Hardness/Strength testing 14

5.4 Impact Direction Setting 14

5.5 Average Times Setting 14

5.6 Data logging 15

5.6.1 Viewing stored file/Group 15

5.6.2 Deleting selected file/Group 15

5.7 Print Function 15

5.8 System Reset 16

5.9 EL Backlight 16

5.10 Auto Power Off 16

5.11 Paper Installation 16

5.12 Battery Charge 16

5.13 Battery Replacement 17

5.14 Connecting to a Computer 17

5.15 Error Code Reference 17

6 Maintenance & Servicing 17

6.1 Impact Device Maintenance 17

6.2 Instrument Maintenance Program 18

6.3 Fault Analysis & Evacuation 18

6.4 Notice of Transport and Storage Conditions 18

APPENDIX 19

Table 1 19

Table 2 20

Table 3 21

Table 4 22

1 Overview

1.1 Advantages

zWide measuring range. Based on the principle of Leeb hardness testing theory. It can measure the

Leeb hardness of all metallic materials.

zLarge screen LCD, showing all functions and parameters. With EL background light.

zSeven impact devices are available for special application. Automatically identify the type of

impact devices.

zTest at any angle, even upside down.

zDirect display of hardness scales HRB, HRC, HV, HB, HS, HL.

zLarge memory could store 100 groups (Relative to average times 32～1 ) information including

single measured value, mean value, impact direction, impact times, material and hardness scale

etc.

zBattery information showing the rest capacity of the battery and the charge status.

zUser calibration function.

zSoftware to connect to PC via USB port.

zThermal printer integrated, convenient for in field printing.

zNI-MH rechargeable battery as the power source. Charge circuit integrated inside the instrument.

Continuous working period of no less than 150 hours (EL off and no printing).

zAuto power off to save energy.

zOutline dimensions：212mm×80mm×32mm

1.2 Main Application &Testing Range

1.2.1 Main Application

zDie cavity of molds

zBearings and other parts

zFailure analysis of pressure vessel, steam generator and other equipment

zHeavy work piece

zThe installed machinery and permanently assembled parts

zTesting surface of a small hollow space

zMaterial identification in the warehouse of metallic materials

zRapid testing in large range and multi-measuring areas for large-scale work piece

1.2.2 Testing Range

Testing range refer to Table 1 and Table 2 in the Appendix.

1.3 Technical Specifications

zError and repeatability of displayed value see Table1-1 below.

Table 1-1

No. Type of impact

device

Hardness value of Leeb

standard hardness block

Error of displayed

value Repeatability

1 D 760±30HLD

530±40HLD

±6 HLD

±10 HLD

6 HLD

10 HLD

2 DC 760±30HLDC

530±40HLDC

±6 HLDC

±10 HLDC

6 HLD

10 HLD

3 DL 878±30HLDL

736±40HLDL ±12 HLDL 12 HLDL

4 D+15 766±30HLD+15

544±40HLD+15 ±12 HLD+15 12 HLD+15

5 G 590±40HLG

500±40HLG ±12 HLG 12 HLG

6 E 725±30HLE

508±40HLE ±12 HLE 12 HLE

7 C 822±30HLC

590±40HLC ±12 HLC 12 HLC

zMeasuring range：HLD（170～960）HLD

zMeasuring direction：0°~360°

zHardness Scale：HL、HB、HRB、HRC、HRA、HV、HS

zDisplay：segment LCD

zData memory：100 groups max.（relative to impact times 32～1）

zPrinting paper: width is 57.5±0.5mm, diameter is 30mm.

zBattery pack: 6V NI-MH

zBattery charger: 9V/500mA

zContinuous working periodabout 150 hoursWith backlight off, no printing

zCommunication interfaceUSB1.1

1.4 Configuration

Table 1-2

No. Item Quantity Remarks

Standard

Configuration

1 Main unit 1

2 D type impact device 1 With cable

3 Standard test block 1

4 Cleaning brush (I) 1

5 Small support ring 1

6 Battery Charger 1 9V 500mA

7 Paper for printing 1

8 Manual 1

9 Instrument package case 1

Optional

Configuration

11 Cleaning brush (II) 1 For use with G

type impact device

12 Other type of impact

devices and support

rings

Refer to Table 3

and Table 4 in the

appendix.

13 DataPro software 1

14 Communication cable 1

1.5 Working Conditions

Working temperature：-10～＋50;

Storage temperature：-30～＋60;

Relative humidity: ≤90％;

The surrounding environment should avoid of vibration, strong magnetic field, corrosive medium and

heavy dust.

1.6 Safety Instructions

zThe instrument can only work with the specially designed battery pack and power adapter

(charger) supplied by Mitech Co. LTD. Working with others may result in damage of the

instrument, battery leakage, fire or even explosion.

zDo not cast the battery pack into fire and do not short circuit, disassemble or heat the battery pack,

otherwise battery leakage, fire or even explosion may occur.

Do not open the cover of the paper compartment or come into contact with the heating head of the

printer by hand or any part of your body to avoid burns due to high temperature when the printer is

printing.

2 Structure Feature &Testing Principle

2.1 Structure Feature

2.1.1 The Hardness Tester Appearance

1. Main unit

2. Impact device

2.1.2 Parts of the Main body

1 Socket of impact device 2 Socket of USB 3 LOGO 4 Paper compartment cover 5 LCD display 6

Keypad 7 Battery switch 8 Power jack 9 Serial Number 10 Product label 11 Battery compartment

cover

2.1.3 D Type Impact Device

1 2 3 4 5 6 7

1 Release button 2 Loading tube 3 Guide tube 4 Coil unit

5 Connection cable 6 Impact body 7 Support ring

2.1.4 Different Types of Impact Device

DC DL C D+15 E G

2.2 Main Screen

Below is the main display screen:

Instruction of the Main Display Screen:

Hardness Scale

Average Icon

Direction

Battery Info

Impact Times

Measured Value

Material No

Memory Icon

Material

：

The present presetting material.

Impact direction

：

The present impact direction.

Hardness scale

：

Hardness scale of the present measured value.

Battery information

：

Showing the rest capacity of the battery and the charging status.

Measured value

：

Display present single time measured value（without showing average icon）， or

display the present mean value (with average icon prompting). “-HI-” means over conversion value or

measure range. “-LO-” means lower than conversion value or measure range.

Impact times

：

Times that have been impacted.

Average Icon

：

It will appear when showing the mean value of the measured values after reaching the

presetting impact times.

Memory Icon: It appears when operating the instrument memory.

2.3 Keypad Definitions

Table 2-1

Turn on/off the

EL backlight

Data Save or Data

Delete

Turn the

instrument on/off

Material

Selection

Hardness/Strength

switch

Plus or Up

SCALE

Hardness Scale

Selection

Direction change

Minus or Down

FEED

Manual Paper

Feed

Impact Times set

Print data

Cancel or Exit

Data logging or

Enter

Press key to store present group of measured value into memory. This operation is only valid after

displaying the mean value.

zPress key and could display single measured value.

zPress key could switch on of off the background light of LCD.

zPress key to set the impact direction.

zPress key to change the impact times in one group. The impact times item will flash when first

pressing the key, and then the impact times value will plus or minus when pressing the or

key. Press key finally to exit from changing the impact times process.

zPress SCAL E key to change the hardness scale.

zPress key to change the material. Presetting hardness scale recovers to HL automatically after

material presetting changed.

zPress key to switch between hardness test and strength test. Only D and DC type of impact

device has the function of strength testing. So hardness testing is the only selection if the impact

device is not D or DC type.

zPress key to print out the measured values after measurement.

zPress FEED key to manually feed the paper.

2.4 Leeb Hardness Testing Principle

The basic principle is to use an impact body of certain weight impacts against the testing surface

under certain test force, then measure the impacting velocity and the rebounding velocity of the impact

body respectively when the spherically test tip is located 1mm above the testing surface.

The calculation formula is as follows:

HL=1000×VB/ VA

Where, HL—— Leeb hardness value

VB—— Rebounding velocity of the impact body

VA—— Impacting velocity of the impact body

3 Preparation

3.1 Instrument Preparation and Inspection

Verification of the instrument is by using standard test block. The error and repeatability of

displayed value should be within the regulation of Appendix table 2. The instrument and impact device

must be calibrated using a standard hardness block before use as the first time, or having not been used

for a long time, or having reset the instrument system.

Press key, meanwhile pressing down the key to power on the system. Then the user

calibration screen shows as left below.

Test for 5 points on the standard hardness block.

It would display the average measured value

after measuring 5 times. Press key to

change to its nominal value.

Press key to confirm the calibration finally. Or

press the key to cancel the calibration.

Range of adjustment: ±30HL.

The measurement parameters, including the material setting, the hardness scale and the impact

direction can’t be changed during calibration.

3.2 Impact

Device

Selection

Refer

to Appendix

Table 1 and Table 3 for selection of impact device.

Note：Use a calibrated hardness tester, test the standard test block

downward vertically for 5 times, the arithmetical average value compare with

the value of standard test block. If this value exceeds the standard value, could

use the function of user calibration to adjust.

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