Sauter HMM Manual

Sauter Ikke kategoriseret HMM

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Sauter GmbH

Tieringerstr. 11-15

D-72336 Balingen

E-Mail: info@sauter.eu

Tel: +49-[0]7433- 9976-174

Fax: +49-[0]7433-9976-285

Internet: www. sauter.eu

Instruction Manual

HMM

HMM-BA-e-1111 1

MOBILE LEEB HARDNESS TESTER

Model: HMM

Table of contents

Caution

1. Summarize

1.1 Measuring Principle Scope

1.2 Hardness Value „L“

1.3 Main Features

1.4 Application Range

1.5 Technical Information

1.5.1 Display Unit

1.5.2 Impact Unit D

1.6 Overview Display Unit

1.7 Impact Device Assembling

2. Checking Supplied Accessories

3. Quick Start Guide

3.1 Cable Connection

3.2 Calibration

4. Operation Instructions

4.1 Display Unit

4.1.1 Keys

4.1.2 Measurement Mode

4.1.3 Setup

4.1.3.1 Material Group

4.1.3.2 Impact Direction

4.1.3.3 Scale

4.1.3.4 Browse

4.1.3.5 Adjusting Clock and Calendar

4.1.3.6 Calibration

4.2 The Format of Memory Data

4.3 Backlight

4.4 System Reset

4.5 Automatic Shutdown

5. Printing Data

5.1 Printer Link

5.2 Test Report Format

6. Hardness Test

6.1 Test Preparation

6.2 Sample Preparation

6.3 Test Steps

7. Troubles and Solutions

8. Maintenance and Service

8.1 Impact device Maintenance

8.2 Storage of Report

8.3 Normal Maintenance Procedures

APPENDIX 1 Daily Checking

APPENDIX 2 Factors affecting the Accuracy

APPENDIX 3 Measuring and Conversion Range

APPENDIX 4 Material Code

9. Declaration of Conformity

Caution

Please read this carefully first:

1. Only the special battery offered by our Company may be

used in the main body of the hardness tester. Improper

batteries might cause damages to the instrument, battery

leakage, even fire or explosion.

2. Any components of the instrument may not get

submerged in water or get exposed to rain, which could

cause a battery explosion and damage the main body.

3. Electrical shocks have to be avoided; the cabinet may

not be opened.

4. If the instrument hasn’t been used for a longer period, it

has to be stored in a cool and dry place.

1. Summarize

1.1 Measuring Principle Scope

The measuring principle of HMO Hardness Tester is

physically a rather simple dynamic hardness test:

An impact body with a hard metal test tip is propelled by

spring force against the surface of the test piece. Surface

deformation takes place when the impact body hits the test

surface, which results in a loss of kinetic energy. This

energy loss is calculated by velocity measurements when

the impact body is at a precise distance from the surface

for both, the impact phase and the rebound phase, of the

test. The permanent magnet in the impact body generates

an induction voltage in the single coil of the impact device.

The voltage of the signal is proportional to the velocity of

the impact body. A signal processing by the electronics

provides the hardness reading for display and storage.

Simply said, harder materials produce higher rebound

velocities than less harder ones (higher L- value).

HMM Hardness Tester provides a direct hardness

measurement within any particular material group (i.e.

steel, aluminium etc.). It can be used as a final test result

without conversion. However, there are established

conversions to other hardness scales in this Hardness

Tester as a comfort for our customers. These conversions

to other scales (HRC, HRB, HB, HV, HSD etc.) are

programmed into the electronics and they can be shown

directly on the display as a test result. All data is stored in

the native L scale to prevent any possible errors with

multiple conversions.

Sauter GmbH

Tieringerstr. 11-15

D-72336 Balingen

E-Mail: info@sauter.eu

Tel: +49-[0]7433- 9976-174

Fax: +49-[0]7433-9976-285

Internet: www. sauter.eu

Instruction Manual

HMM

HMM-BA-e-1111 2

1.2. The Hardness value “L”

This term was introduced 1978 into measuring technology

by Dr. Dietmar Leeb. It contains the quotient for the impact

body’s rebound and impact velocity, multiplied by 1000.

Harder materials produce higher rebound velocity than

less harder ones. With reference to a particular material

group (i.e. steel, aluminium etc.), the L value represents a

direct hardness measurement and is used as such.

Comparison curves with other standard statistic hardness

values have been established (Brinell, Vickers, Rockwell

C, B) for the most prevalent materials, enabling the

L values to be converted into the relevant values by these

procedures. With this hardness tester, such hardness

values can directly be displayed in the hardness scales

HRC, HRB, HB, HV, HSD and tensile strength (MPa).

1.3 Main features

- Highly accurate, ± 6 HL

- Automatic correction for impact direction

- Large, easy to read display with backlight

- User profiles for fast change of all settings

- Conversion to all common hardness scales

HRC, HRB, HB, HV, HSD and tensile strength

(MPa).

- Supplied by dry-cell, Ultra-low-power

- Easy calibration

- Conforms to the Standard ASTM A956-02

1.4 Application range

- Appropriate for all metals

- Ideal for production level testing

- Best suited for on- site testing of heavy, big or

already installed parts

- Handy for difficult to access or confined test

locations

- Automatic compensation for impact direction

- Excellent for material selection and acceptance

tests

- Easy to handle and accurate on curved test

surfaces (R> 10mm)

- Metal production & processing

- Automotive & transportation

- Aerospace & shipyard

- Testing services & laboratories

1.5 Technical information

1.5.1 Display unit

* HL Display range: 0 to 999 HLD

* Accuracy: ± 6 HL

* LCD: large LCD with backlight

* Resolution: 1 HL; 1 HV; 1 HB; 0,1 HRC;

0,1HRB; 1 HSD; 1 MPa

* Power: dry cell (3 x 1.5V AAA)

* Operating temperature: 0°C up to + 50°C

(32°F up to 122°F)

* Storage Temperature: -10°C up to + 60°C

(14°F up to 140°F)

* Humidity: 90 % max.

* Dimensions: 150mm x 80mm x 24mm

(5.9 x 3.1 x 0.9 inches)

* Weight: Approx. 200g (main body)

1.5.2 Impact unit D

Impact energy: 11 Nmm

Mass of the impact body: 5.5 g

Test tip diameter: 3 mm

Test tip material: tungsten carbide

Test tip hardness: ≥ 1600 HV

Impact length: 147 mm

Impact maximum diameter: 20 mm

Impact weight: 75 g

1.6 Overview Display Unit

Picture 1-1

1.7 Impact Device Assembling

1. Impact body

2. Support ring

3. Coil

4. Cable

5. Catch chuck

6. Loading tube

7. Release button

2. Checking supplied accessories

It should be checked that the following accessories are

supplied with your instrument

Picture 2-1

Produkt Specifikationer

Mærke:	Sauter
Kategori:	Ikke kategoriseret
Model:	HMM

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