Elcometer AVU User manual

User Guide

Elcometer AVU

Adhesion Verification Unit

Overview

After Test

Box Contents

Dolly Adaptors

Getting Started

Technical Specification

Performing the Test

Recommended Test Pressures &

Assessing the Results

Acceptable Ranges

CONTENTS

www.elcometer.com

For the avoidance of doubt, please refer to the original English language version.

This product meets the Electromagnetic Compatibility Directive. The product is Class B, Group 1 ISM equipment according to CISPR 11. Group 1 ISM

product: A product in which there is intentionally generated and/or used conductively coupled radio-frequency energy which is necessary for the internal

functioning of the equipment itself. Class B product are suitable for use in domestic establishments and in establishments directly connected to a low

voltage power supply network which supplies buildings used for domestic purposes.

is a registered trademark of Elcometer Limited, Edge Lane, Manchester, M43 6BU. United Kingdom

All other trademarks acknowledged.

Dimensions: 165 x 155 x 105mm (6.5 x 6.1 x 4.1")

Weight: 3kg (6.6lbs)

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.

TMA-0569 Issue 02 - Text with cover 23966

1 OVERVIEW

www.elcometer.com 2

†

1 Dolly Adaptor

2 LCD Display

3 Softkeys

4 Battery Life Indicator

5 Adhesion Reading

6 ‘Max Hold’ Key

7 Units of Measurement

(MPA or PSI)

8 On/Off Key

Elcometer Adhesion Verification Unit (AVU)

Elcometer 506 Dolly Adaptor for 20 & 14.2mm Skirt

2 x AA Batteries

Test Certificate

Carry Case

User Guide

2 BOX CONTENTS

3 GETTING STARTED

To switch the gauge on, press and hold the “On/Off” ( ) key.

The gauge has an integrated backlight which will timeout after 30 seconds of inactivity.

The unit will switch off automatically after 5 minutes of inactivity.

† The Elcometer AVU is supplied with an Elcometer 506 20mm dolly adaptor fitted. Dolly adaptors for other adhesion gauges from Elcometer and other

manufacturers, are available as optional accessories - see Section 7 “Dolly Adaptors” on page 6 for details.

4 PERFORMING THE TEST

www.elcometer.com3

The Elcometer AVU is designed to provide users with a method of verifying the performance of their

†

pull-off adhesion gauges .

The performance of an adhesion gauge should be verified at a number of test pressures. Refer to

Section 9 on page 7 for recommended test pressures for Elcometer pull-off adhesion gauges based on

our certification procedures. For other manufacturers’ gauges, refer to the manufacturers’ specification.

1 Press and hold the “On/Off” ( ) key to switch on the

Elcometer AVU.

†

2 Fit the appropriate dolly adaptor - screwing clockwise to

tighten into position. The reading on the Elcometer AVU

display should be zero.

Note: Do not overtighten as this will apply pressure and result in

inaccurate readings.

3 Connect the adhesion gauge or actuator to the dolly adaptor

(Elcometer 506 actuator shown).

4 “MAX” should be displayed on the Elcometer AVU LCD to

indicate that ‘Max Hold’ is switched on. ‘Max Hold’ holds the

Elcometer AVU reading when the required test pressure has

been reached on the adhesion gauge. Press the “MAX”

softkey to switch ‘Max Hold’ on and off.

Note: The display will hold the maximum value until the ‘MAX’ softkey is

pressed again.

† The Elcometer AVU is supplied with an Elcometer 506 20mm dolly adaptor fitted. Dolly adaptors for other adhesion gauges from Elcometer and other

manufacturers, are available as optional accessories - see Section 7 “Dolly Adaptors” on page 6 for details.

4 PERFORMING THE TEST (continued)

www.elcometer.com 4

5 Apply pressure until the required test pressure is reached on the adhesion gauge and compare the

adhesion gauge’s reading with the reading on the Elcometer AVU display - see Section 5 “Assessing

the Results” on page 5.

6 To switch between measurement units, press the “MPa/psi” softkey.

The Elcometer AVU will provide adhesion readings for 20mm dollies irrespective of which dolly adaptor is

fitted - see below for additional information.

ELCOMETER 506 DOLLY ADAPTOR FOR 50MM ACTUATOR SKIRT (Part Number: T99923936)

When using the Elcometer 506 Analogue Adhesion Tester with 50mm dolly adaptor, the reading on the

Elcometer AVU display should be compared with the reading on the 20mm scale of the Elcometer 506

analogue pressure gauge.

When using the Elcometer 506 Digital Adhesion Tester with 50mm dolly adaptor, the dolly size should be

set to 20mm before test - refer to the Elcometer 506 User Guide for instructions on how to select the

20mm dolly size.

ELCOMETER 106 SCALE 6 DOLLY ADAPTOR (Part Number: T99923938)

When testing the Elcometer 106 Pull-Off Adhesion Tester with the Scale 6 dolly adaptor, the Elcometer

AVU reading should be multiplied by a conversion factor of 6.4516 before comparing with the adhesion

gauge reading.

For other manufacturers’ gauges, please refer to the manufacturers’ instructions for adhesion readings

using 20mm dollies.

6 AFTER TEST

Adhesion gauges should be tested at a number of pressure / adhesion values across the their

measurement range - see Section 9 on page 7 for recommended test pressures for Elcometer pull-of f

adhesion gauges.

When comparing the adhesion gauge reading with the Elcometer AVU reading, the user should refer to

the adhesion gauge’s accuracy statement. This is usually quoted in the operating instructions or

technical data sheet.

The adhesion gauge can be stated as performing within specification if the Elcometer AVU adhesion

reading is within the stated accuracy of the adhesion gauge. If outside specification, re-calibration is

recommended - contact Elcometer or your local supplier for further information.

The Elcometer AVU can be used to re-certify adhesion gauges if it has a current and valid calibration

certificate, dated within 12 months of test. This provides users with a Calibration Certificate which is

traceable through the certification of the Elcometer AVU unit in accordance with Elcometer’s procedures.

The Elcometer AVU is supplied with a Test Certificate as standard and is also available with an optional

Calibration Certificate. To certify or re-certify the Elcometer AVU, contact Elcometer or your local

supplier.

5 ASSESSING THE RESULTS

www.elcometer.com5

1 Release all pressure from the adhesion gauge.

2 Detach the adhesion gauge or actuator from the dolly adaptor.

3 Press the “MAX” softkey to release the ‘Max Hold’.

7 DOLLY ADAPTORS

Dolly adaptors are available for testing Elcometer 106 and 506 pull-off adhesion gauges. Adaptors

are also available for testing other manufacturers’ gauges.

Description Part Number

Elcometer 506 Dolly Adaptor: 20 & 14.2mm Skirts T99923935

Elcometer 506 Dolly Adaptor: 50mm Skirt T99923936

Elcometer 106 Dolly Adaptor: Scales 1 to 4 T99923937

Elcometer 106 Dolly Adaptor: Scale 6 T99923938

AT-M & AT-A Adhesion Gauge Dolly Adaptor T99923939

PAT Adhesion Gauge Dolly Adaptor T99923986

Range

0 - 30MPa (0 - 4000psi)

Resolution

±0.01MPa (1psi)

Accuracy

±0.33% of full scale

Power Supply

2 x AA alkaline dry batteries (rechargeable batteries can be used)

Dimensions

165 x 155 x 105mm (6.5 x 6.1 x 4.1")

Weight

3kg (6.6lbs)

8 TECHNICAL SPECIFICATION

www.elcometer.com 6

# The Elcometer AVU is not suitable for verifying the accuracy of the Elcometer 106 Scale 5 due to its scale range.

9 RECOMMENDED TEST PRESSURES & ACCEPTABLE RANGES

www.elcometer.com7

ELCOMETER 506 ANALOGUE GAUGES (Accuracy: ±1% of full scale)

Megapascals (MPa)

Pounds Per Square Inch (psi)

Gauge

Pressure

Elcometer AVU

Acceptable Range

Gauge

Pressure

Elcometer AVU

Acceptable Range

Gauge

Pressure

Elcometer AVU

Acceptable Range

Gauge

Pressure

Elcometer AVU

Acceptable Range

3.0

2.74 - 3.26

18.0

17.74 - 18.26

500

462 - 538

2000

1962 - 2038

8.0

7.74 - 8.26

23.0

22.74 - 23.26

1000

962 - 1038

2500

2462 - 2538

13.0

12.74 - 13.26

1500

1462 - 1538

3000

2962 - 3038

ELCOMETER 506 DIGITAL GAUGES (Accuracy: ±1% of full scale)

Megapascals (MPa)

Pounds Per Square Inch (psi)

Gauge

Pressure

Elcometer AVU

Acceptable Range

Gauge

Pressure

Elcometer AVU

Acceptable Range

Gauge

Pressure

Elcometer AVU

Acceptable Range

Gauge

Pressure

Elcometer AVU

Acceptable Range

2.0

1.74 - 3.26

15.0

14.74 - 15.26

500

462 - 538

2000

1962 - 2038

5.0

4.74 - 5.26

20.0

19.74 - 20.26

1000

962 - 1038

2500

2462 - 2538

10.0

9.74 - 10.26

25.0

24.74 - 25.26

1500

1462 - 1538

3000

2962 - 3038

ELCOMETER 106 SCALE 1 (Accuracy: ±15% of the reading)

Megapascals (MPa)

Pounds Per Square Inch (psi)

Gauge

Pressure

Elcometer AVU

Acceptable Range

Gauge

Pressure

Elcometer AVU

Acceptable Range

Gauge

Pressure

Elcometer AVU

Acceptable Range

Gauge

Pressure

Elcometer AVU

Acceptable Range

0.5

0.43 - 0.58

2.5

2.13 - 2.88

100

85 - 115

400

340 - 460

1.0

0.85 - 1.15

3.0

2.55 - 3.45

200

170 - 230

500

425 - 575

1.5

1.28 - 1.73

3.5

2.98 - 4.03

300

255 - 345

2.0

1.70 - 2.30

ELCOMETER 106 SCALE 2 (Accuracy: ±15% of the reading)

Megapascals (MPa)

Pounds Per Square Inch (psi)

Gauge

Pressure

Elcometer AVU

Acceptable Range

Gauge

Pressure

Elcometer AVU

Acceptable Range

Gauge

Pressure

Elcometer AVU

Acceptable Range

Gauge

Pressure

Elcometer AVU

Acceptable Range

1.0

0.85 - 1.15

5.0

4.25 - 5.75

100

85 - 115

600

510 - 690

2.0

1.70 - 2.30

6.0

5.10 - 6.90

200

170 - 230

700

595 - 805

3.0

2.55 - 3.45

7.0

5.95 - 8.05

300

255 - 345

800

680 - 920

4.0

3.40 - 4.60

400

340 - 460

900

765 - 1035

500

425 - 575

1000

850 - 1150

9 RECOMMENDED TEST PRESSURES & ACCEPTABLE RANGES (continued)

www.elcometer.com 8

ELCOMETER 106 SCALE 3 (Accuracy: ±15% of the reading)

Megapascals (MPa)

Pounds Per Square Inch (psi)

Gauge

Pressure

Elcometer AVU

Acceptable Range

Gauge

Pressure

Elcometer AVU

Acceptable Range

Gauge

Pressure

Elcometer AVU

Acceptable Range

Gauge

Pressure

Elcometer AVU

Acceptable Range

3.0

2.55 - 3.45

12.0

10.20 - 13.80

500

425 - 575

1500

1275 - 1750

6.0

5.10 - 6.90

15.0

12.75 - 17.25

1000

850 - 1150

1750

1487 - 2013

9.0

7.65 - 10.35

1250

1062 - 1438

2000

1700 - 2300

ELCOMETER 106 SCALE 4 (Accuracy: ±15% of the reading)

Megapascals (MPa)

Pounds Per Square Inch (psi)

Gauge

Pressure

Elcometer AVU

Acceptable Range

Gauge

Pressure

Elcometer AVU

Acceptable Range

Gauge

Pressure

Elcometer AVU

Acceptable Range

Gauge

Pressure

Elcometer AVU

Acceptable Range

5.0

4.25 - 5.75

20.0

17.00 - 23.00

500

425 - 575

2500

2125 - 2875

10.0

8.50 - 11.50

22.0

18.70 - 25.30

1000

850 - 1150

3000

2550 - 3450

15.0

12.75 - 17.25

1500

1275 - 1725

3200

2720 - 3680

2000

1700 - 2300

www.elcometer.com9

9 RECOMMENDED TEST PRESSURES & ACCEPTABLE RANGES (continued)

ELCOMETER 106 SCALE 6 (Accuracy: ±15% of the reading)

Megapascals (MPa)

Pounds Per Square Inch (psi)

Gauge

Pressure

Elcometer AVU

Acceptable Range‡

Gauge

Pressure

Elcometer AVU

‡

Acceptable Range

Gauge

Pressure

Elcometer AVU

‡

Acceptable Range

Gauge

Pressure

Elcometer AVU

‡

Acceptable Range

0.5

2.74 - 3.71

2.5

13.71 - 18.55

274 - 371

300

1645 - 2225

1.0

5.48 - 7.42

3.0

16.45 - 22.26

100

548 - 741

350

1919 - 2596

1.5

8.23 - 11.13

3.5

19.19 - 25.97

150

822 - 1112

400

2193 - 2967

2.0

10.97 - 14.84

200

1096 - 1483

450

2467 - 3338

250

1371 - 1854

500

2742 - 3710

‡Elcometer AVU reading is multiplied by the conversion factor of 6.4516 to give actual measured result.

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