Multi-channel switch matrix STM

compact

In many production plants, different test types or different connections of a DUT are tested one after the other. To avoid manual switching and the resulting loss of time, switching with the help of a relay matrix is important. This multiplies the measurement outputs to the desired number of test points. This enables fully automatic switching of individual test points or disconnection of connections between different measuring instruments. The high-performance relay matrix STM has a modular design and can be expanded to the desired number of measuring points. Ideally, the relay matrix can be operated with the intuitive ST EOL test software. The desired relay combination is part of the test plan and can be defined per test step. Resistance tests, capacitance tests or inductance tests are often performed as a four-wire measurement to increase the accuracy of the measurement results. Such tests are often performed in combination with a high-voltage, insulation, or surge voltage test up to 5kV. Resistance testers, multimeters or LCR meters are not designed to withstand voltages at the input. Therefore, it is important that the measuring instruments are separated from each other with a switching matrix. In the robust Sourcetronic STM- matrix, a safe discharge circuit and optionally a discharge monitoring are built in. This protective discharge monitoring can be controlled in combination with the intuitive ST®EOL operating software, for example by means of a locked test cage that can only be opened when no voltage is measured at the output relays.