Elektrophysik

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

Product Details:

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**

Product Details:

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

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

• 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

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.