ElektroPhysik 80-124-1401 User manual

Operating Instructions

for the Coating Thickness Gauges

MiniTest

650E F

650E FN

MiniTest

650B F

650B FN

Table of Contents

A. Start-up
B. Operation
C. Troubleshooting
D. Technical Data

Field of Applications

Small and portable gauge for quick and easy on-site use, for example
by surveyors, car dealers or on your construction site.

MiniTest 650E F and MiniTest 650B F work according to the principle
of magnetic induction to measure non-magnetic coatings on iron and
steel substrates.

MiniTest 650E FN and MiniTest 650B FN use a dual sensor working
on two principles: magnetic induction and eddy currents to measure
non-magnetic coatings on iron and steel as well as insulating coatings
on non-ferrous metal substrates.

The dual FN sensor automatically identi fies the sub strate materia l and
switches to the appropriate measuring principle accordin gly .

All models conform to:
DIN EN ISO 1461, 2178, 2360, 2808, 3882;
ASTM B244, B499, D7091, E376

Scope of delivery

- MiniTest 650E or MiniTest 650B

- 1 or 2 zero reference plate(s)

- 1 calibration foil

- 3 batteries AAA (Micro)

- Operating instructions German/ English/ French

- Soft pouch

A. Start-up

Inserting the batteries

MiniTest 650 is delivered including 3 batteries. Place the gauge front
side down onto an ev en surface. Loosen the screw of the battery
compartment, remove the lid and insert the three batteries (AAA).
Make sure to respect correct polarities, following the markings in the
battery compartment.

Replacing the batteries

Otherwise, the battery symbol will continue to flash after you switch
OFF and ON again and the gauge will shut down after a second.

Caution:

Please respect polarities when changing batteries ! Make su re to inser t
the fresh batteries within 30 seconds after removing the old ones.
Otherwise, the calibration values will get lost.

B. Operation

Control keys

MiniTest 650E F and E FN ar e operat ed via one single con trol key, the
models MiniTe s t 650B F and B FN are oper ated via three key s .

The following events require a battery
change:

BATT flashing after switch-ON, E6 is shown
and the gauge shuts down after one
second: Change batteries immediately.

BATT flashing during measurement:
You may continue measurement. Then

switch the gauge off and change batteries.

1. Switch ON

Briefly press ON. The last reading is shown
along with the matching measuring principle
(“Ferr“ or “Non-Ferr“).

2. Switch OFF

MiniTest 650 is programmed to switch off auto­matically approx.. 90 sec. after the last
measurement or k ey action. Alternativ ely, use

3. Calibration

MiniTest 650E F and MiniTest 650E FN are factory-calibrated. No
further calibration is required. After switch-ON you can directly
proceed on measurement.

3.1 Zero-point calibration

MiniTest 650B F and B FN are also factory-calibrated and directly
ready for measurement after switch-ON. Their factory calibration is
sufficient for sim ple an d quic k meas ureme nt and if la rger t olera nces
are acceptable. To increase the measuring accuracy, you should use
the zero-point calibration. It is also recommended for substrates of a
nature other than the one of the reference zero plates or for curved or
rough samples.

During measurement, MiniTest 650B FN automatically identifies the
substrate. In the calibration mode, however, the automatic switch to
the appropriate measuring principle beco mes inacti ve. Therefore, prior
to calibration, it is requested to ta ke a reading o n the uncoa ted sampl e
(ferrous or non-ferrous), if calibration is to be done for a measuring
principle other than the one used for the last measurement. Place the
sensor on the sample. “Ferr” or “Non-Ferr” will be shown accordingly.

If, later on, you wish to measure on both substrates (ferrous and non­ferrous), make sure to calibrate for both substrates. On that purpose,
please use an uncoated sample for each substrate.

the ON/ OFF button for switching off.

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For zero-point calibration, please proceed as follows:

© ElektroPhysik, Version 1.0
B4

Subject to change without notice.

Gauge type

MiniTest 650E F

MiniTest 650E FN

Measuring range

F: 0...3 mm / 120 mils

F: 0...2 mm / 80 mils
N: 0...2 mm / 80 mils

Measuring principle

magnetic induction / eddy

current

Measuring uncertainty*

± (3 μm + 5 % of reading) /

± (0.12 mils + 5 % of reading)

± (3 μm + 5 % of reading) /

± (0.12 mils + 5 % of reading)

Low range resolution

2 μm / 0,08 mils

2 μm / 0,08 mils

Min. curvature radius, convex

50 mm / 2“

50 mm / 2“

Min. curvature radius,
concave

Min. area for measurement*

2

ø 50 mm / ø 2”

ø 50 mm / ø 2”

Min. substrate thickness*

F: 0.70 mm / 28 mils

N: 0.1 mm / 4 mils

Measuring units:

according to model: μm/mm or mils/inch

Calibration

factory calibration (no

calibration required)

factory calibration (no

calibration required)

Operating temperature

gauge: 0…50 °C / 32 °…122 °F

sensor: –10 °…70 °C / 14 °…158 °F

Power supply

3 Micro-AAA batteries for more than 10,000 readings

Standards

DIN EN ISO 1461, 2178, 2360,2808, 3882

ASTM B 244, B 499, D7091, E 376

Dimensions

housing: 70 mm x 122 mm x 32 mm / 2.7” x 4.8” x 1.26”
sensor: Ø 15 mm x 62 mm / Ø 0.60” x 2.44”;

Weight including batteries

approx. 225 grams / 7.93 ozs

Gauge type

MiniTest 650B F

MiniTest 650B FN

Measuring range

F:

F: 0...2 mm / 80 mils
N: 0...2 mm / 80 mils

Measuring principle

magnetic induction / eddy

current

Measuring uncertainty*

± (2 μm + 3 % of reading) /

± (0.08 mils + 3 % of reading)

± (2 μm + 3 % of reading) /

± (0.08 mils + 3 % of read ing)

Low range resolution

1 μm / 0.04 mils

1 μm / 0.04 mils

Min. curvature radius, convex

10 mm / 0.4“

10 mm / 0.4“

Min. curvature radius,
concave

Min. area for measurement

ø 50 mm / ø 2”

ø 50 mm / ø 2”

Min. substrate thickness

F: 0.70 mm / 28 mils

N: 0.1 mm / 4 mils

Measuring units:

according to model: μm/mm or mils/inch

Calibration

factory calibration , zero-

point calibration

factory calibration , zero-

point calibration

Operating temperature

gauge: 0…50 °C / 32 °…122 °F

sensor: –10 °…70 °C / 14 °…158 °F

Power supply

3 Micro-AAA batteries for more than 10,000 readings

Standards

DIN EN ISO 1461, 2178, 2360,2808, 3882

ASTM B 244, B 499, D7091, E 376

Dimensions

housing: 70 mm x 122 mm x 32 mm / 2.7” x 4.8” x 1.26”
sensor: Ø 15 mm x 62 mm / Ø 0.60” x 2.44”;

Weight including batteries

approx. 225 grams / 7.93 ozs

MiniTest 650B F or B FNare switched ON.

1. Press ZERO-key to intialize calibration. ‘ZERO’ flashing
and ‘MEAN’ is shown to indicate that a mean value willl be
shown.

2. Take your uncoated sample (coating thickness = zero) and
place the sensor onto it. Wait for the signal tone to sound
and lift the sensor. Repeat this procedure several times.
The mean value calculated from your set of measurements
is shown. If you wish to abort the zero-point calibration,
press CLEAR-key.

3. Press ZERO-key to complete zero-point calibration.
“ZERO“ (non-flashing) will be shown on display.

Now you can take readings!

The calibration needs to be effected f or each principle o f measuremen t
(”Ferr“ or “Non-Ferr“) individually.

3.2 Delete calibration

Press ZERO followed by CLEAR. The ZERO-calibration will be
deleted. Note: The factory calibration for use on flat and even surfaces
will be enabled automatically.

C. Trouble Shooting

The following list of error codes explains how to identify and eliminate

faults. All error codes start with an “E” for “Error”.

Errors causing the gauge to shut-down:
E 3: Sensor failure. This error code appears at switch ON.
E 4: Sensor providing unstable readings (due to strong magnetic

fields in close proximity or if readings are taken on soft
coatings).

E 5: At switch-ON, the sensor was held in close proximity to metal.

E 6: Low battery.
E11: Remove batteries for 2 minutes

Failures without any error code shown:

x The gauge will not switch off automatically
x The gauge is unable to take any further readings
x Keys are without function
x Illogical readings

Remedy with MiniTest 650B: Total Reset
Note: A Total Reset will delete all calibration values!

Switch the gauge off. If the gauge will not switch off via the ON/OFF­key, please remove batteries prior to the Total Reset.

Press and hold CLEAR and ZERO key, then press the ON-key
simultaneously.

A long bleep sounds to confirm the Total Reset. The last reading and
the calibration values have been deleted.

6-N 07/2014

D. Technical Data

1

magnetic induction

100 mm / 4” 100 mm / 4”

2

F: 0.70 mm/ 28 mils

*1

acc. to DIN 55350 part 13

0...3 mm / 120 mils

magnetic induction

1

50 mm / 2” 50 mm / 2”

F: 0.70 mm/ 28 mils

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com