ElektroPhysik 80-639-0101 User manual

MikroTest® 5 standard

MikroTest

Technical Reference and Operating Manual

Advancing with Technology

®

6 automatic

ElektroPhysik

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

Table of Contents

© 04/2002 B11-N
Subject to change without notice.

Table of Contents

1. Application................................................E-1

2. Measuring operation ............................... E-1

2.1 Measurement on small and

curved surfaces.......................................... E-3

2.2 Measurement on rough surfaces .............. E-3

3. Checking measuring tolerance ..............E-3

4. Delivery schedule .................................... E-4

5. Accessories ..............................................E-4

6. Measuring principle................................. E-4

7. Maintenance .............................................E-5

8. Service ......................................................E-5

9. Safety Notes ............................................. E-5

10.Technical Data .......................................... E-6

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

Application and measuring operation

1. Application

Depending on the instrument type the following coating
thicknesses can be measured:

a. All non-magnetic coatings such as chrome, copper,

paint, rubber on steel*.

b. Electroplated nickel coatings on non-ferrous

substrates.
c. Electroplated nickel coatings on steel.
*The steel substrate should be commercial unhardened

steel (St 33 to St 60 or C 15 to C 45).

ElektroPhysik E-1

2. Measuring operation

a. Place the gauge on the surface to be measured.
b. T urn the scale wheel forw ard to the stop (see figure

1)

c. The magnet will now adhere to the surface (if

necessary push the button on the bottom of the
gauge).

MikroTest 5:

d1.

steadily backwards using the index finger until the
magnet lifts with a click.

d2.

MikroTest 6:

automatically. The wheel stops when the magnet
lifts.

e. You can now read the thickness.

Turn the scale wheel slowly and

The scale wheel now turns back

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

Measuring operation

Note:

- Clean both the magnet and the surface to be
measured before initiating the measurement.

- Do not touch the button at the bottom of the gauge.

- Measurement can be carried out regardless of the
position of the gauge.

- All gauges including the automatic model do not

figure 1

figure 2

E-2 ElektroPhysik

require power or batteries.

- The end result x should always be determined from
several readings to arrive at an average. When
reading this average the tolerance indicated in the
technical data (see chapter 10) should always be
taken into account.

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

Measurement on small, curved and rough surfaces; measuring tolerance

2.1 Measurement on small and curved
surfaces

When measuring on small and curved surfaces, please
observe the information regarding the diameter and the
minimum curvature radius in chapter 11. The V -groov e on
the supporting surface of the gauge can be used as a
positioning aid when measuring on cylindrical objects (see
figure 3).

2.2 Measurement on rough surfaces

Measurements of coatings applied to rough surfaces
generally show high variations. The correct av erage coating
thickness is determined by substracting the mean of
measurements taken on non-coated material from the
mean of measurements taken on coated material. It is
recommended to form the mean of at least 5 measurement.

3. Checking measuring tolerance

The MikroTest gauge contains a magnet of which the
magnetisation does not alter during normal usage. Thus ,
the correct thickness indication only needs to be checked
occaionally.

The measuring tolerance can be checked by means of
the ElektroPhysik thickness standards. The tolerance can
be impaired by e.g. wear and tear , dirt or improper use of

figure 3

ElektroPhysik E-3

the gauge.

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

Delivery schedule, accessories and measuring prinicple

4. Delivery schedule

- MikroTest 5 and 6, magnetic coating thickness
gauge, conforms to DIN 50 981, 50 982, ASTM
B499, E367, D1186, G12, G530, BS 54 11, DIN
EN ISO 2178, 2361

- carrying case

- works cer tificate

- manual

- SurfaTest wet film gauge (measuring comb) for
measuring freshly applied wet coatings; MikroT est
and SurfaTest constitute an ideal inspection kit,
particularly for the painting inspector.

6. Measuring principle

The MikroTest works according to the principle of
magnetic attraction. The adherence of the measuring
magnet to the magnetic substrate (steel or nickel) can
be broken by rotating a spring. The amount of rotation of
the spring is directly related to the coating thickness.

5. Accessories

- thickness standards, set of 2 or 4 pieces in four
different thicknesses to check the measuring
accuracy of the MikroTest;

- MikroTest belt case for working on ladders or on
scaffolding;

E-4 ElektroPhysik

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

Maintenance, service and safety notes

7. Maintenance

- Do not expose the gauge to strong magnetic fields
or to electromagnets.

- After use always put the gauge back into the case.

Note:

Special maintenance is not necessary.

9. Safety Notes

Please observe that the measuring system generates a
continuous magnetic field which may impair or destroy
electronic devices or measuring gauges. In particular, keep
a distance to magnetic carries such as floppy discs and
magnetic cards.

8. Service

State-of-the-art methods using high-quality components
as well as a quality management system certified to DIN
EN ISO 9001 ensure an optimum workmanship of the
gauge.

Should you nevertheless detect an error or malfunction
on your gauge, please inform the ElektroPhysik service
responsible for your products, giving the details including
a description of the error or malfunction.

ElektroPhysik E-5

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

Technical Data

10. Technical Data

Type Application

6 G

5/6 F

6 S3

6 S5

6 S10

6 S20***

E-6 ElektroPhysik

electro

platings and

paints on

steel**

enamel,

plastiques,

rubber on

steel

Measuring

range

0 ... 100 μm1 μm or 5 %* 20 mm 0.5 mm

0 ... 1000 μm5 μm or 5 %* 30 mm 0.5 mm

0.2 ... 3 mm 5 %* 30 mm 1 mm

0.5 ... 5 mm 5 %* 50 mm 1 mm

2.5 ... 10 mm 5 %* 50 mm 2 mm

7.5 ... 20 mm 5 %* 100 mm 7 mm

Tolerance

Minimum

surface area

Minimim

thickness of

substrate

Minimum
curvature

radius

5 mm convex

25 concave

8 mm convex

25 concave

15 mm convex

25 mm concave

15 mm convex

25 mm concave

15 mm convex

25 mm concave
100 mm convex

150 mm concave

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

Technical data

Type Application

6 Ni50

6 Ni100

6 NiFe50

For all
gauges

of measuring value and using ElektroPhyisk thickness standards

*
** steel St 33 ... St 60 roughness Rz ≤ 3 μm
*** special version

ElektroPhysik E-7

electroplated

nickel on

non-ferrous

substrates

electroplated

nickel on

steel**

Ambient temperature: -20° C ... +100° C
Dimensions: Instrument with case: 235 mm x 85 mm x 44 mm
Weight: 450 g

Measring

range

0 ... 50 μm1 μm + 5 %* 15 mm ----

0 ... 100 μm1 μm + 5 %* 15 mm ----

0 ... 50 μm2 μm + 8 %* 20 mm 0.5 mm

Tolerance

Minimum

surface area

Minimum

thickness of

substrate

Minimum

curvature

radius

5 mm convex

25 concave

5 mm convex

25 concave

10 mm convex

25 mm concave

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

Index

Index

A

Average....................................................................E-2

B

Belt case .................................................................. E-4

C

Curved surfaces .......................................................E-3

Cylindrical objects....................................................E-3

E

Electromagnet..........................................................E-5

Electroplated nickel coatings ...................................E-1

Error .........................................................................E-5

ElektroPhysik

M

Magnet ........................................... E-1, E-2, E-3, E-4

Magnetic field........................................................... E-5

Magnetisation...........................................................E-3

Malfunction...............................................................E-5

Mean ........................................................................E-3

N

Non-magnetic coatings ............................................E-1

P

Positioning aid ..........................................................E-3

Principle of magnetic attraction ...............................E-4

Q

Quality management................................................E-5

R

Rough surfaces........................................................E-3

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

S

Scale wheel ..............................................................E-1

Spring.......................................................................E-4

Substrate..................................................................E-1

Supporting surface...................................................E-3

Surface............................................................ E-1, E-2

T

Thickness.................................................................E-1

Thickness standards....................................... E-3, E-4

Tolerance .................................................................E-2

V

V-groove ...................................................................E-3

Index

ElektroPhysik

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com