Elektrophysik

MikroTest Magnetic coating thickness measurement standards for checking the accuracy

Application

The MikroTest has been the most widely used coating thickness gauge in the world over the last 40 years. International patents and our production “know-how” ensure that the gauge has the highest technical standards of all analogue magnetic coating thickness gauges. All instruments conform to national and international standards: DIN EN ISO 2178, DIN 50 982, ASTM B 499, E 376, D 1186, G 12, B 530, BS 5411, ISO 2361

· Horizontal, vertical, overhead

· The gauge allows measurements on curved surfaces

· Precise measurements in tubes and on round parts due to the automatic operation

Measuring principle

The measurement of the coating thickness is based on magnetic attraction. The attractive force is related to the distance between a permanent magnet and a steel substrate. This distance represents the thickness of the coating to be measured. The magnet is lifted from the surface by means of a spring connected to the magnet arm. The force needed to lift the magnet is directly related to the angle of rotation of the torsion spring. This measuring principle is also especially suited for electroplated nickel on copper, aluminium and other non-ferrous metals.

Technical data

Features to make your quality control more precise and accurate

· Highest accuracy with simplest operation

· No calibration necessary Simple set-up and measurement

· All gauges are without power or battery

· One point measurement

· Robust metal case to protect from mechanical shocks

· Precision measuring system resistant to solvents

Supply schedule

· MikroTest gauge with hand strap

· Plastic carrying case

Technical data

Type Range Application Tolerance* Minimum Minimum curvature radius Minimum

surface of the sample base thickness

6 NiFe50 0 ~0 µm Electroplated ± (2 µm 8% of reading) Ø 20 mm 10 mm convex/ 25 mm concave 0.5 mm

Technical data

Type Range Application Tolerance* Minimum Minimum curvature radius Minimum

surface of the sample base thickness

5/6 G 0 ~00 µm Electroplating and ±1 µm or 5% of reading Ø 20 mm 5 mm convex/ 25 mm oncave 0.5 mm

paint coatings on steel**

5/6 F 0 ~1000µm Paint on steel** ±5 µm or 5% of reading Ø 30 mm 8 mm convex/ 25 mm concave 0.5 mm

6 S3 0.2~3 mm ± 5% of reading Ø 30 mm 15 mm convex/ 25 mm concave 1.0 mm

6 S5 0.5~5 mm Enamel, plastic, ± 5% of reading Ø 50 mm 15 mm convex/ 25 mm concave 1.0 mm

rubber on steel**

Coating Thickness Gauge Mikrotest 6 G Elektrophysik Germany

Application

Micro Test for every application the Balance measuring system ensures accurate readings at any angle

• Horizontal, vertical, overhaead

• The gauge allows measurements on curved surfaces

• Precise measurements in tubes and on round parts due to the automatic operation.

Measuring Principle

The measurement of the coating thickness is based on magnetic attraction. The attractive force is related to the distance between a permanent magnet and a steel substrate. This distance represents the thickness of the coating to the measured. The magnet is lifted from the surface be means of a spring connected to the magnet arm. The force needed to lift the magnet is directly related to the angle of rotation of the torsion spring. This measuring principle is also especially suited for electroplated nickel on copper, aluminium and other non – ferrous metals.

Technical Data

Feature to make your quality control more precise and accurate

• Highest accuracy with simplest operation

• No calibration necessary simple set – up and measurement

• All gauges are without power or battery.

• One point measurement

• Robust metal case to protect from mechanical shocks

• Precision measuring system resistant to solvents.

Model Name Microtest

High-Accuracy Wall Thickness Measurement, Minitest 7200, Minitest 7400, Elektrophysik (Germany)

The MiniTest 7200 FH/MiniTest 7400 FH is a portable thickness measuring device that offers the capability to precisely measure materials up to 24 mm thickness. The small size and portability of the device enables it to be operated in production areas and quality laboratories. The two models ensure easy, non-destructive and highly accurate wall thickness measurement on all types of non-ferrous products, regardless of their size, shape, and material. They are ideal for applications where accurate measurement of sharp corners, small radii and/or complex

shapes are required.

Two Models

MiniTest 7200 FH offers measurement capabilities including real-time thickness measurement, display of minimum and maximum readings,

an offset mode, and automatic storage of up to 100,000 values. MiniTest 7400 FH offers the same capabilities as the

MiniTest 7200 FH plus statistical graphing, real time trend, data base with up to 200 batches and a larger memory for automatic storage of up to 240,000 readings, e. g. 1,200 readings per batch.

SIDSP® Provides Higher Accuracy

The MiniTest 7200 FH/MiniTest 7400 FH Gauging Systems incorporate sensor- integrated digital signal processing (SIDSP®). All measuring signals are digitally created and completely digitally processed inside the sensor itself. Only completely processed digital readings are transferred to the base unit for display, statistical analysis, and storage.

Two Sensors to Choose From

In order to maximize the accuracy of readings, two easily interchangeable sensors with a hardened tip and a v ariety of ball sizes are available to cover the various thickness ranges. The FH 4 sensor uses steel balls to measure from 0 to 6 mm and magnetic balls to measure up to 9 mm. The FH 10 sensor uses steel balls to measure from 0 to 13 mm and magnetic balls to measure up to 24 mm. The two sensor models are interchangeable and can be connected to any of the two gauge models.

Advanced Reference Ball Design

The MiniTest 7400 FH/MiniTest 7200 FH utilize specially treated reference balls. Balls of this design result in improved measurement reproducibility of up to 0.5 %. Reference balls are available in 1 mm, 1.5 mm, 2.5 mm, 4.0 mm (FH 4), and 2.5 mm, 4 mm, 6 mm and 9 mm sizes (FH 10). The measuring range has been extended by magnetic reference balls so that also very thick walls can be measured such as engine parts made of aluminium or titanium or very thickwalled plastic containers.

Innovative Menu Control and Data Filing System

MiniTest 650 – Durability and High Precision Coating Thickness Gauge / DFT Meter / Elcometer

Designed for durability and high precision, MiniTest 650 is the ideal tool for any measuring task in the finishing industry.The rugged and easy-to-handle thickness gauge combines extended mechanical life on the one hand and high accuracy on the other hand to meet the requirements of any professional user in the shipbuilding, automotive, bridge building, construction or other industry.

According to model, MiniTest 650 is suitable to measure any non-magnetic coatings such as paint, enamel, chrome and zinc on steel any insulating coatings on nonferrous metals such as paint, anodising, ceramics on aluminium, copper, zinc die-cast, brass, etc.

Available in three different models:

• with a magnetic-induction sensor for measurements on steel substrates
• with an eddy currents sensor for measurements on non-ferrous metals
• with a dual sensor for measuring on both, steel or non-ferrous metals

Special feature of the FN model: Its dual sensor identifies the substrate material. Upon contact with the surface, the gauge automatically switches to the suitable measuring principle based on your application. The measuring principle conforms to the DIN, ISO, BS, and ASTM norms and standards.

Technical specifications

MiniTest Model 4100 – 3100 – 2100 – 1100, Elektrophysik (Germany)

Application

The MiniTest gauges are small universal gauges designed for non-destructive coating thickness measurement. For many years, automotive, shipbuilding, aircraft and machine manufacturers as well as government departments, inspectors, consultants and the paint and electroplating industry have used ElektroPhysik coating thickness gauges. Well-known automotive producers and leading manufacturers of nearly all branches of industry entrust ElektroPhysik gauges with their quality assurance.

Description

The MiniTest 4100 – 1100 series comprises four different basic gauges, thus offering different possibilities of processing of measuring values. Different probes are available which can be connected to all basic gauges. In order to select the “right” probe, the thickness of the coating to be measured as well as that of the substrate and the geometry have to be taken into consideration. ElektroPhysik offers a range of probes suitable for standard as well as for special applications. For measurements on steel, the magnetic induction principle is used allowing measurement of all insulating coatings, e.g. paint, enamel etc., and non-ferrous metals on steel and ferrous metals. Probes working on the magnetic induction principle are referred to as F-probes. For measurements of insulating coatings on non-ferrous metals, the eddy current principle is used. Probes working on this principle are referred to as N-probes.

MiniTest 4100

MiniTest 4100 offers unique possibilities of data processing. In total, 10,000 measuring values can be stored in max. 99 application memories each with max. 98 batches. Application memories are extremely useful when different measuring

tasks requiring different calibrations or probes occur regularly. The selected memory stores the calibration carried out and the probe used. Once MiniTest 4100 is prepared for various measuring tasks, taking a series of readings becomes simple and quick. Permanent calibration can be dispensed with and measuring errors are abolished. For quality assessment, the stored measuring series can be evaluated according to the various statistics modes. Setting limit values allows the user to take readings and at the same time monitor the tolerances specified for the production process. Acoustic signals indicate that a preset limit value was exceeded.

MiniTest 3100

MiniTest 3100 also possesses a total memory capacity of 10,000 readings and the possibility to store readings in 10 application memories with 10 batches each. A calibration once performed remains in the application memory. Statistical evaluation of a measuring series allows the user to assess the coating with mean value, max., min., standard deviation and number of readings taken within one measuring series.

MiniTest 2100

This gauge version also possesses a total memory capacity of 10,000 readings. A complete measuring series can be statistically evaluated. MiniTest 2100 is suitable for users with repeated applications, e. g. electroplated coatings on small objects.

Switching off the gauge does not delete calibrations from the memory.

MiniTest 1100

This gauge is the basic version of the MiniTest 4100 series. Its functions are simple and clearly arranged. However, this low-cost version also works with all probes of the ElektroPhysik range. Thus, special applications, e.g. very thick coatings, can be measured at a reasonable price. MiniTest 1100 does not offer either a memory or statistics

GalvanoTest Versatile Coating Thickness Gauge, Make : Elektrophysik - Germany
• measures almost any electroplated coating/base combination

• suitable for single and multi-layer coatings

• utilizes the coulometric principle, a de-plating method conforming to DIN 50 955 and ISO 2177

Also suitable for extremely thin coatings from 0.05 microns!

Application

The coulometric or anodic de-plating technique is used for measuring the thickness of electroplated coatings on virtually all substrates such as steel, non-ferrous metals or insulating material bases. Typical applications include: nickel on steel, zinc on steel, tin on copper, silver on copper or copper on epoxy. This technique simply involves the removal of a small, barely visible area of coating material. The substrate is not affected. The coulometric method ensures reliable and exact results. Designed for complete ease of use, GalvanoTest requires no specific operator skills and only minimal training before actual measurements can take place. The coulometric principle is the only low-cost method to measure the individual layers of multi-layer systems, for instance chrome plus nickel plus copper on steel one after the other. Connected to the MiniPrint data printer, GalvanoTest provides complete documentation of measuring results and statistics. For specific measuring analysis or later reference, the characteristic voltage curve during the de-plating process can also be printed out

Measuring principle Based on the principle of Faraday’s law, GalvanoTest performs the electrolytic dissolution of a precisely delimited area of the sample. A measuring cell is filled with an electrolyte specially adapted to the selected coating/base combination. The measuring cell is placed on the test sample. A gasket inserted between the cell and the test sample prevents the solution from running out and at the same time precisely determines the area to be de-plated, e.g. 1 mm. The equipment is now ready to use and can be plugged into the electronic gauge. The current, through the electrolyte, dissolves the predetermined area of coating using an electro-chemical reaction. Once the etching is complete, a characteristic change in voltage automatically stops the deplating process and coating thickness is displayed in microns or mils on the digital display.

Description The GalvanoTest gauge consists of three major components:

1. Measuring cell For measuring on even or curved surfaces up to 3 mm curvature radius, two different measuring cells are available. A measuring cell with circulating pump is connected to GalvanoTest 3000, a cell with air pulsator is con - nected to the 2000 model. The electrolyte is constantly moved around the measuring cell to ensure an even de-plating of the measuring area as well as on optimum use of the electrolyte. For measuring wires or small parts, an electrolyte cup is available to dip the samples into the electrolyte. The electrolyte cup can be used for both models and is available as an option.

2. Stand The stand serves to hold the test sample in place. It permits the exact positioning of the measuring cell on the test sample.

3. Processing unit GalvanoTest is a microprocessor based instrument with interactive LCD. It is suitable for measuring a variety of plating applications. The measuring application can be entered via touch-pad and visualized on a large alpha - numeric display. Various data ports are available to connect GalvanoTest to peripheral units MiniPrint – data printer for immediate print-out of readings, statistics and measuring cell voltage curve Electrolyte cup for measuring wires and small parts such as a PC, printer or Y-T recorder. For data transfer, an MSoft 7000 Basic Edition software is available as an option

• Rugged coating thickness gauge

• For any non-magnetic coatings on steel such as paint, enamel, chrome, zinc, etc.

• For any insulating coatings on non-ferrous metals such as paint, anodising, ceramics on aluminium, copper, zinc die-cast, brass, etc.

• Ram- and impact-protected through rubber rimmed casing Sensor with newly developed wear-resistant carbide metal tip

Application

Designed for quick and easy nondestructive coating thickness measurement, the MiniTest 70 series is available in two models:

MiniTest 70 F with built-in sensor for measuring non-magnetic coatings applied on steel.

MiniTest 70 FN with a built-in dual sensor for measuring non-magnetic coatings applied on steel and insulating coatings on non-ferrous metals.

Description

Gloss Meter Model : PICOGLOSS 503, Elektrophysik – Germany

Design

The PICOGLOSS 503 is a compact, portable three angle gloss meter with measuring geometries of 20°, 60° and 85°, for standardised measurements (in accordance with DIN, ISO, ASTM, BS and JIS) of all three gloss ranges “high gloss“, “medium gloss “ and “low gloss“ - thus it is almost universally applicable.

The PICOGLOSS 503 is operated by way of a scroll wheel using a simple, user-friendly navigation on the display. The measuring procedure is started by actuating a key that is located at the side in an ergonomic manner.

In case of e. g. high gloss metallic or chromium plated surfaces the instrument switches over automatically to mirror gloss measurement.

The integrated USB (Mini) as well as Bluetooth® interfaces enable the data transmission to a PC. Additionally, also the power supply can be provided through the integrated USB (Mini) interface, by a PC. The PICOGLOSS 503 is catched in a handy ever ready case which also houses the calibration standard "A".

Special features

Menu

The menu prompting is multi-lingual; switchable to English, German, French, Spanish, Italian, Japanese, Portuguese and Russain.

Display

In addition to the measuring and calibration values, the high-contrast LC display shows the current mode as well as messages and instructions.

Calibation and automatic check

For the calibration only one calibration standard is required. After key pressure the calibration routine runs automatically. The calibration value is stored in the PICOGLOSS 503. After switching on the instrument a self-test of approx. 2 seconds is made automatically assessing also the condition of the standard. If necessary, a check or cleaning of the calibrating standard is recommended on the display.

Mirror gloss

The instrument switches over automatically e. g. in case of high-gloss metallic or chromium-plated surfaces the reflection values of which exceed the standard

measuring range:

- 20° → 0 - 2000 GU

– 60° → 0 - 1000 GU

- 85° → 0 - 160 GU.

(GU = gloss units)

Continuous measurement

With this the current value, the average value as well as the minimum and maximum values are indicated.

Evaluation software „gloss-link“

Software for data transmission for memory reading or online measurement with a test report compiled beforehand.

Statistics

In the statistic mode several measurements ( 2 to 99) can be carried out on each specimen. These are evaluated statistically and displayed. The results can be stored and compared with a reference. There is a choice of three different columns in the display: - current value, average value, minimum/maximum value - spread, standard deviation, difference, - pass / fail (within/out of tolerance in comparison with the reference).

Accuracy Range: 0 - 99.9 GU

Repeatability: 0.2 GU

Reproducibility: 0.5 GU

Range: 100 - 2000 GU

Repeatability: 0.2 %

Reproducibility: 0.5 %

Gloss Meter, Model : PICOGLOSS 560 MC, Elektrophysik – Germany

DesignThe PICOGLOSS 560 MC is one of the smallest portable gloss measuring devices ever designed. It is smaller than a PC mouse and therefore ideal for on-site use. The universal 60° measuring geometry and the automatic change-over of mirror-gloss make this instrument suitable for a wide range of applications. Because of the compact dimensions of the measuring instrument and the measuring aperture gloss measurements can be carried out without difficulty even on small or narrow specimens as well as in places which are not easily accessible.

Handling Single key operations make gloss measurements extremely easy and comfortable. The reading remains stored in the display for about 30 s and is then switched off automatically to save the battery. However, the last measured value is preserved and is shown in the display when the instrument is switched on again.

Display In addition to the measuring and calibrating values the high contrast LC display also shows messages and information.

Calibration

The PICOGLOSS 560 MC requires only one calibrating standard for normal two-point calibration. After key pressure the calibration routine runs automatically. The calibration value is stored on the standard (EPROM).

60° Gloss measurement Specifically for gloss measurements on lacquers and plastics in the range of 0 - 150 gloss units.

Mirror gloss measurement Mirror-gloss measurements can be conducted on metallic surfaces in the range of up to 1000 gloss units. There is an automatic change-over of the measuring range at 150 gloss units.

Detection of external light The effect of external light can be determined by conducting measurements with the lamp switched off.

USB interface

The measured data can be transferred to a PC by means of the USB cable supplied and evaluated using the software PICOSOFT II *).

Power supply The PICOGLOSS 560 MC is operated by a round cell, the capacity of which is adequate for at least 10,000 measurements. When using a PC, the power supply is taken over by the USB interface of the PC. Reference Class: The PICOGLOSS 560 MC is supplied with a Manufacturer’s Certificate M in accordance with DIN 55 350-18 that includes among others the following information: Actual and setting values of the gloss standards, product identification, test equipment used with calibration status, date, name of inspector. In the range up to 100 gloss units the linearity is checked by means of 4 gloss standards (the maximum deviation permissible is 1 gloss unit)

ColorTest – Colour measurement

• Portable colorimeter with external probe

• 45°/0° measuring geometry according to DIN 5033, optional d/8°

• Small probe head, spring-loaded

• Automatic/manual start trigger

• High resolution O-LED colour display

• Real grating spectrometer with a sampling distance of 3.5 nm

• Non-volatile memory elements with the capacity of saving up to 1,000 colour values or 300 colours with remission spectrum and 1,000 colour standards

Applications

•  The perfect solution for colour measurement of plastics, textiles, leather, powders, liquids, granulates, creams, foods, cable …

 Features

•  Flexible external probe head and a small spot size (3.5 mm Ø) for the reliable scans on curved surfaces and small samples.
•  A comprehensive range of accessories and probe head adapter enables the use for a wide range of applications.
•  Two main geometries (45°/0° and d/8°) available in one device, by using the optional accessory MA35-UK.
•  The automatic accessory detection changes internal settings depending on what accessory is attached – automatically. Quality „Made in Germany“

Accessories

•  A comprehensive range of accessories and probe head adapter available
•  Probe Head Adapter with d/8° geometry
•  Set for measuring powders
•  Set for measuring liquids
•  Probe head with V-Block for positioning on cylindrical samples such as cables
•  Probe head with small apperture for measuring small samples like tablets

Technical Data

• Measuring geometry 45°/0° according to DIN 5033, optional d/8° with MA 35-UK adapter
• Illuminants D65, D55, D50, A, C, F11
• Standard Observer 2° and 10° Colour Scales XYZ, Yxy, ΔE CIE L*a*b*, L* u* v*, L*C*h, Hunter Lab, pass/fail
• Spectral Range 400 nm to 700 nm, scanning in 3.5 nm steps
• Display high resolution O-LED colour display, high contrast and low-power
• Repeatability < 0.05 ΔE CIELab

Ultrasonic Thickness Gauge, Minitest 420, 430, 440 Elektrophysik - Germany

Field of application

Rugged ultrasonic thickness gauges are designed for use in harsh industrial environments. Easy to use and light-weight, these handy gauges provide accurate thickness readings on site for quality assurance and corrosion testing.

MiniTest 420

The basic models are designed for simple and quick thickness measurement. This model incorporates a calibration block for zero adjustment and a quick calibration.

MiniTest 430

Equipped with data memory and USB interface, the MiniTest 430 also includes an automatic zero calibration facility. Various modes such as minimum, difference and alarm mode make this model the ideal tool for quality control. In high-speed scan

mode an increased measuring rate of 10 readings per second is achieved along with indication of the smallest thickness values. MiniTest 430 provides reliable corrosion testing. The high-speed scan mode is also particularly suited for measurements

on hot-temperature samples.

MiniTest 440

Featuring all functions of the MiniTest 430, the top model of the series connects to the U5.0E transducer to measure through a coating in the echo-echo mode.

Transducers for versatile applications

In the standard supply schedule, all models come with a 5 MHz transducer. To meet specific customer requirements,

ElektroPhysik offers a range of transducers that connect to all models of the MiniTest 400 series. The automatic transducer recognition allows to switch quickly between different measuring tasks.