The EM-4320 Calibrated Impulse Generator is a reliable source of calibrated impulses at variable repetition rates. The EM-4320 provides a repetition rate variable between 1 and 100 Hz. (1 Hz steps between 1 and 10 Hz, 10 Hz steps between 10 Hz 100 Hz) and a provision for synchronizing with and operating at the AC line frequency. A front panel push-button switch also provides for generating a single impulse.
A front panel switch provides for selection of either positive or negative polarity of the impulse, thus facilitating checks for possible overload of a device under test.