This chronometer detects state changes in normally open or normally closed contacts, as well as positive or negative changes in voltage up to 250 V (AC or DC).
The measurement unit can be switched between milliseconds and cycles at any time. A special measurement mode can display the frequency of a voltage signal up to 4 kHz. When used in combination with PTE relay test sets, the PTE-30-CH can also be controlled remotely over the built-in PTE BUS interface.