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Know How

Test method,- matrix- and test station switchover


SCHLEICH-test technology proves itself in the daily operation. The aim has to be to perform a test as fast and efficient as possible. Only this creates a high utility.

In order to save time, the operator connects all connections of the test object by means of a contacting adaptor. Afterwards the tester automatically performs all tests between all connections. The operator does not have to re-clamp any leads. This is realized by the automatic test method switchover that is typical for SCHLEICH.

Many motors often feature more than three connections. Here it makes sense and it is more efficient to connect all connections of the test object to the tester. Afterwards the tester performs all tests fully-automatically between all connecting points. This is more effective than performing respective partial tests at one part of the winding. The switchover between the different connections is realized via flexible switchover matrices.

It is obvious that test objects with many connections require more time for connecting and disconnecting than test objects with only one connecting cable. In order to gain time in these cases we often realize dual and multi-station systems. In one station is loaded and unloaded and at the same time it is tested in the other stations. In this way very economic results can be achieved also at complex and comprehensive tests.


Test method switchover

Compliant to type and extent of the test methods we provide a number of switchovers. They guarantee a fast and automatic change between the different test methods.

As the voltage differences between the test methods might be very high the safety has top priority when dealing with switchovers. A resistance test with 3KV has to be switched to the test object as reliably as a high-voltage test with 6000V - to protect the test object and, of course, the operator as well. There are no compromises. For switchovers and matrices we only use umpteen thousands of times proven, top-quality parts of our own production or from well-known German manufacturers.



For almost every task we offer the corresponding relay matrix. Matrices vary in the number of connections and the height of the test voltage that is to be switched. A matrix has to switch and separate 6000V as reliably as millivolt signals. Our engineers have developed the matrices exactly for this situation.

Matrices are designed for two- and four-wire applications. They can be strung together to arbitrarily increase the quantity of connections. Matrices with more than 100 connecting points are no rarity. Also, at the test method switchover only the best quality is used for matrices.


Station switchover

Instead of using two or more testers a station switchover is sometimes an economic alternative.

High safety demands are made for station switchovers. Simultaneously to a running test at one station the other station is discharged and charged again. During this process the operator inevitably touches the clamps and connecting leads. An electrical hazard of the operator has of course to be avoided in any case. For this the measuring leads to the stations in which no test runs at this moment have to be safety separated. Furthermore it is recommended to ground the connections to the test object additionally.


Mechatronics/ Script control

Besides the hardware, the software also offers an enormous flexibility. Due to the integrated script commands additional PLC functions can be realized in the tester. Entries can be queried, outputs be set and logical links be generated - just like with a PLC.

The huge advantage is the direct control of mechatronic functional processes. You can activate valves, read limit switches, evaluate measuring values yourself and much more. Thus the tester is able to generate additional functional processes before, during and after the test. This is perfect for own test setups or also for the integration in an automatic production.

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