Device for measuring a wide range of voltages and for determining continuity

摘要: An electrical test device for use by an electrician in testing circuits. The includes a voltage sensor, display, and steady current source. sensor monitors the type of (AC or DC) between two conductors, provides signal to display which responsively displays level. power supply has source that is series with tactile transducer, so may measure broad range voltages while only limited amount flows through sensor. Consequently, lower cost components be used In another embodiment, tester also substantially independent continuity tester. its own alarm indicate conductor and, thus, operate even if become inoperable. Further, include phase control monitoring any alternating sensed device. enable relatively small segment signal. Thus, enables sense short period every cycle applied Accordingly, employed within