Calibrators or process calibrators are used for basic measuring, testing and regulation techniques for setting and verifying test installations and instrumentation. Calibrators have different magnitudes that should be attributed to normal measurement signals. These measurement signals or regulated magnitudes are denominated as the test signal, which our calibrators can provide. They are defined as 0 to 20mA, 4 to 20mA, 0 to 10V and 0.2 to 1 bar. These magnitudes signify, for example, temperature, output or settings of a test valve (0 to 100% of valve opening). This signifies that for a regulating signal of 50% (eg. 10mA) with an input range of 0 to 20mA in a test valve, the valve opening will be 50%.