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Elcometer 3092
Sclerometer
Hardness Tester
Operating Instructions

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is a registered trademark of Elcometer Limited.
All other trademarks acknowledged.
© Copyright Elcometer Limited. 2014.
All rights reserved. No part of this Document may be reproduced, transmitted, transcribed, stored(in a retrieval system or otherwise) or translated into any language, in any form or by any means(electronic, mechanical, magnetic, optical, manual or otherwise) without the prior written
permission of Elcometer Limited.
A copy of this Instruction Manual is available for download on our Website via www.elcometer.com

TMA-0598 Issue 1 - Text with cover 25226

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enCONTENTS

Page

About this gauge ........................................................................................................................................................3
Setting the tip force .................................................................................................................................................. 5
Testing a surface ....................................................................................................................................................... 9
Maintenance ............................................................................................................................................................. 10
Technical specification ........................................................................................................................................10
Spares ...........................................................................................................................................................................11
Related equipment................................................................................................................................................. 12

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Thank you for your purchase of this Elcometer 3092 Sclerometer Hardness Tester. Welcome toElcometer.
Elcometer are world leaders in the design, manufacture and supply of inspection equipment forcoatings and concrete. Our products cover all aspects of coating inspection, from development
through application to post application inspection.
This Elcometer 3092 Sclerometer Hardness Tester is a world beating product. With the purchaseof this product you now have access to the worldwide service and support network of Elcometer.
For more information visit our website at www.elcometer.com
1 ABOUT THIS GAUGEThe Elcometer 3092 Sclerometer Hardness Tester is a simple but effective gauge for determining
the hardness of a large variety of coatings and surfaces.
The body of the gauge contains a spring loaded tool fitted with a tungsten carbide tip. The tip ispressed against the surface being tested and the gauge is moved a short distance in an attempt
to scratch the coating. The coating is inspected and the spring loading is increased gradually until
the tip leaves a mark or destroys the coating.
The maximum load on the tip is determined by the stiffness of the spring fitted to the gauge. Threesprings of varying stiffness are supplied as standard with the gauge.
The spring loading is adjusted within the range of each spring by sliding a lockable collar along
the body of the gauge.
1.1 STANDARDSYour Elcometer 3092 Sclerometer Hardness Tester can be used in accordance with the following
National and International Standard : Round tips AS 3894.4, Diamond tips EN 438-2 & ISO 45862.
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1.2 FEATURESŸ Very easy to useŸ Portable, pocket-sized designŸ Ideal for testing coatings on the production line

1.3 WHAT THE BOX CONTAINSŸ Elcometer 3092 Sclerometer Hardness TesterŸ Tool with 0.75 mm (0.03") diameter tungsten

carbide tip
Ÿ 3 springs (grey, red and blue)Ÿ Carry case
Ÿ Operating instructions

Your Elcometer 3092 Sclerometer Hardness Tester is packed in a cardboard and foam package.
Please ensure that this packaging is disposed of in an environmentally sensitive manner. Consult
your local Environmental Authority for further guidance.
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To maximise the benefits of your new Elcometer 3092 Sclerometer Hardness Tester please takesome time to read these Operating Instructions. Do not hesitate to contact Elcometer or yourElcometer supplier if you have any questions.
2 SETTING THE TIP FORCEThe force applied by the tip on the surface is determined by the colour of the spring and the positionof the sliding collar.
2.1 SELECTING A SPRING

Four types of spring are available. The stiffness of each type is determined by its colour:
Spring colour
Force applied by tip
Grey:
0 N to 3 NRed:
0 N to 10 NBlue:
0 N to 20 N
Greena:0 N to 30 N

a. The green spring is not supplied as standard with the gauge. To order a green spring see “Spares” on page 11.

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2.2 FITTING AND ADJUSTING A SPRING

1. Loosen locking screw to release spring tension.
2. Unscrew and remove the black knurled end cap.

3. Slide the collar off the Sclerometer.

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2.2 FITTING AND ADJUSTING SPRING (continued)

4. Remove the spring.
5. Select the appropriate spring and insert intothe Sclerometer.

6. Refit the collar.

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2.2 FITTING AND ADJUSTING SPRING (continued)

7. Refit the end cap

8. Find the scale on the Sclerometer which matches
the colour of the spring and adjust the tip force bysliding the collar to the required setting on the scale.
9. Tighten the locking screw.
The gauge is now set and ready for testing.

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3 TESTING A SURFACE

1. Place the gauge perpendicular to the surface being
tested and apply sufficient downwards force
to compress the spring by approximately 2 mm.
Do not allow the bottom of the gauge to touch thesurface being tested.
2. Move the gauge to produce a linear scratch
approximately 10 mm long.
3. Examine the surface for marks left by the tip ofthe tool.
Illuminating the surface from behind will help toreveal surface marking.
If the surface is unmarked, increase the springloading and repeat steps 1 to 3 until surface
marking is detected.

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RThe Elcometer 3092 Sclerometer Hardness Tester is designed to give many years reliable service
under normal operating and storage conditions. Special maintenance will not normally be required
under these conditions.
Always check the tip before use for damage or contamination. Clean or replace the tip if necessary.
Replacement tips and springs are available from Elcometer or your local supplier - see “ Spares” onpage 11.
Details of Elcometer offices around the world are detailed on the Elcometer website,www.elcometer.com
5 TECHNICAL SPECIFICATION

Material Body:
Springs:
Tips:
Dimensions:
Weight:Anodised aluminium
Stainless steel
Tungsten carbide or diamond
186 mm x 29 mm x 17 mm (7.3" x 1.1" x 0.7")
370 g (13 oz)

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4 MAINTENANCE

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6 SPARESYour Elcometer 3092 Sclerometer Hardness Tester is complete with all the items required to starttaking measurements. Over the life of the gauge, the following spare parts and optional accessories
may be required:
6.1 SPRINGS
Spring colour
GreyRedBlue
GreenForce
0 N to 3 N (0 lbf to 0.67 lbf)
0 N to 10 N (0 lbf to 2.2 lbf)
0 N to 20 N (0 lbf to 4.5 lbf)
0 N to 30 N (0 lbf to 6.7 lbf)

Part number
KT003092P004
KT003092P005
KT003092P006
KT003092P007

Tip material
Tungsten Carbide
Tungsten Carbide
Tungsten Carbide
Diamond (As specified in EN 438-2, ISO 4586-2)

Part number
KT003092P001
KT003092P002
KT003092P003
KT003092P008

6.2 TOOLS
Tip
0.5 mm (0.02") Diameter
0.75 mm (0.03") Diameter
1.0 mm (0.04") Diameter
90° angleb

b. 0.09mm (0.0035”) radius

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RIn addition to the Elcometer 3092 Sclerometer Hardness Tester, Elcometer produces a wide range ofother coating testing equipment. Users of the Elcometer 3092 Sclerometer Hardness Tester may also
benefit from the following Elcometer product ranges:
Ÿ Elasticity and Resistance Deformation Testers
Ÿ Paint Inspection Gauges
Ÿ Appearance TestersŸ Washability, Brushability and Abrasion Testers
For further information contact Elcometer, your local supplier or visit www.elcometer.com

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7 RELATED EQUIPMENT