Elcometer 1620
Cupping Tester
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Operating Instructions
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English
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is a registered trademark of Elcometer Limited.
All other trademarks acknowledged.
© Copyright Elcometer Limited. 2008-2013.
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.
Doc.No. TMA-0320 Issue 05
Text with Cover No: 19394
CONTENTS
Section Page
1 About your tester. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.1 Standards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.2 What the box contains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2 Getting started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1 The parts of your tester . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.2 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.3 Digital gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3 Testing a specimen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.1 Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4 Zeroing the gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
5 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
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6 Technical specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
7 Related equipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
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hank you for purchasing this Elcometer 1620 Cupping Tester. Welcome to
Elcometer.
Elcometer are world leaders in the design, manufacture and supply of
inspection equipment for coatings and concrete.
Our products cover all aspects of co ating inspection, from development through
application to post application inspection.
The Elcometer 1620 Cupping Tester, is a world beating product. With the
purchase of 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
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1 ABOUT YOUR TESTER
The Elcometer 1620 Cupping Tester is a robust and simple-to-use instrument
for assessing the cupping capability of coatings applied onto metal sheets up to
1.2 mm (0.05”) thick.
The metal sheet is firmly clamped into a hardened steel die. Reduction gears
drive a 20 mm (0.79”) diameter ball (the punch) onto the underside of the metal
sheet, causing the sheet to cup. The coated surface of the metal sheet is
viewed and the drive mechanism is stopped when the coating begins to crack.
The amount of cupping is then read from a gauge mounted on the instrument.
1.1 Standards
The Elcometer 1620 can be used in accordance with the following Nationa l and
International Standards
• EN13523-6, supersedes ECCAT6
• ISO 1520, supersedes BS 3900-E4, DIN 53156, DIN 53232, NBN T22-104,
NF T30-019.
• JIS K 5600-5-2
1.2 What the box contains
• Elcometer 1620 Cupping Tester
• Gauge
• Gauge holder (for setting zero)
• Zero setting sheet
• Illuminated magnifying glass with clamp
• Operating instructions
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The Elcometer 1620 Cupping 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.
To maximise the benefits of your new Elcometer 1620 please take some
time to read these Operating Instructions. Do not hesitate to contact
Elcometer or your Elcometer supplier if you have any questions.
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2 GETTING STARTED
2.1 The parts of your tester
Die
tightening
ring
Die
chamber
Gauge
MODE
0.00
SET
TOL.
Magnifying
Glass
Crank
mm
ON
DATA
.
OFF
2.2 Installation
Fasten the tester onto a rigid table. Four holes are provided in the mounting
flange for this purpose.
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Figure 1. Parts of the tester
2.3 Digital gauge
The Elcometer 1620 is fitted with a digital gauge.
To switch the gauge on, press the ON/OFF button. Press and hold to switch off.
After changing the battery the gauge will need to be zeroed. To zero the gauge,
see “Zeroing the gauge” on page 7. The battery is located under the battery
compartment cover; use a small screwdriver to remove the cover.
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Figure 2. Battery Holder
3 TES TING A SPECIMEN
3.1 Procedure
1. Unscrew the die tightening ring until there is sufficient clearance between
the halves of the die as observed in the die chamber.
2. Ensure the top of the punch is below the top of the die, see Figure 4 on
page 7.
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3. Place the sample to be tested in the die chamber and screw down the die
tightening ring until the sheet is clamped firmly (see Figure 3).
Figure 3. Metal sheet clamped in the die and ready for cupping test
4. Rotate the handle at a constant speed of 1 revolution per second to ra ise
the punch.
5. While the punch is moving upwards, use the illuminated magnifying glass to
observe the sample through the aperture in the top of the die tightening
ring.
As soon as cracks appear in the paint, stop the punch and record the
cupping reading on the gauge.
6. Rotate the handle to lower the punch below the level of the die.
7. Unscrew the die tightening ring and remove the sample.
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4 ZEROING THE GAUGE
The tester is supplied from the Elcometer factory correctly set to zero and ready
to use. If the gauge is removed , reset or the ba ttery changed it must then be set
to zero using the following procedure.
1. Unscrew the die tightening ring until there is sufficient clearance between
the halves of the die as observed in the die chamber.
2. Ensure the punch is below the level of the top of the die (see Figure 4).
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Figure 4. Set punch below top of die
3. Place setting sheet in die chamber and screw down die tightening ring until
setting sheet is clamped firmly (see Figure 5).
Figure 5. Clamping the setting sheet
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4. Remove the gauge from the tester
(unscrew the clamping screw), place
the gauge into the gauge holder and
tighten the retaining screw gently (see
Figure 6).
0.00
MODE DATA
SET
mm
ON
.
OFF
5. Place the gauge and holder into the
aperture of the die tightening ring; the
gauge sensor should touch the setting
sheet (see Figure 7).
6. Switch on the gauge (press ON/OFF ).
Figure 6.
mm
0.00
ON
DATA
.
MODE
OFF
SET
Figure 7.
7. If ‘INC’ is displayed on the gauge it is in ‘relative’ mode and should be
changed to ‘absolute’ mode by pressing and holding SET until ‘INC’ is no
longer displayed.
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8. Press SET.
The display will show the previously set preset
value and a flashing ‘P’.
If the display shows ‘+0000.00’ press set to
zero the display.
If the display shows a preset value that is not
zero refer to the Mitutoyo instructions supplied
with the gauge to set the preset value to zero.
P
+0000.00
mm
mm
0.00
9. Rotate the handle slowly to raise the punch until the gauge reads 0.01.
10.Leave the handle in this position, remove the gauge from the holder and
replace in the tester clamp, tightening the retaining screw gently.
Note : It is important the handle does not move during this operation.
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11.Press SET, to show the preset value.
12.Press SET to zero the display. Remove the
settting sheet. The gauge is now correctly set
and ready to use.
P
mm
+0000.00
mm
0.00
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5 MAINTENANCE
The Elcometer 1620 Cupping Tester is designed to give many years reliable
service under normal operating and storage conditions.
To prevent the formation of rust, rub the dies, the punch and the die tightening
ring with a lightly oiled cloth. This procedure should be carried out every six
months, or sooner if the tester is used intensively.
Once a year, grease the threads of the die tightening ring and the sides of the
punch with oil, Molykote™ grease, or equivalent.
The tester does not contain any internal user-serviceable components. In the
unlikely event of a fault, the Elcometer 1620 should be returned to your local
Elcometer supplier or directly to Elcometer. The warranty will be invalidated if
the gauge has been opened.
Details of Elcometer offices around the world ar e given on the outside cover of
these operating instructions. Alternatively visit the Elcometer website,
www.elcometer.com
6 TECHNICAL SPECIFICATION
Maximum width of sample sheet: 100 mm (4”)
Maximum thickness of sample sheet: 1.2 mm (0.05”)
Gauge Battery: 1.5 V, SR44 or equivalent
Magnifier Battery: 1.5 V, 2 x AA
Dimensions: 300 mm x 240 mm x 500 mm
(12” x 10” x 20”)
Weight: 24 kg (53 lb)
7 RELATED EQUIPMENT
In addition to the Elcometer 1620 Cupping Tester, Elcometer produces a wide
range of other equipment for determining the physical characteri stics of surfac e
coatings.
Users of the Elcometer 1620 may also benefit from the following Elcometer
products:
• Elcometer 1510 Conical Mandrel Bend Tester
• Elcometer 1506 Cylindrical Mandrel Bend Tester
• Elcometer 1615 Variable Impact Tester
• Elcometer 1542 Cross Cut Adhesion Tester
For further information contact Elcometer, your local supplier or visit
www.elcometer.com.
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