THE new Hioki Model 3290 clamp-on ac/dc HiTESTER with digital indication and bar-graph display, is suitable for ac, dc and ac + dc current as well as frequency measurements to 1000 Hz. It is available from Power Parameters .
Three clamp-on sensors are available for connection to the Hioki 3290. The clamp-on sensors offer ranges to 100A, 300A and 2000A respectively and all three have wide bandwidths. Model 9691 (200A rms, 150A peak) has a bandwidth of dc to 10kHz. Model 9692 (200A rms, 300A peak) has a bandwidth of dc to 20kHz and model 9693 (2000A rms, 2840A peak) has a bandwidth of dc to 15kHz.
The Hioki 3290 is suitable for variable speed drive, inverter, UPS and other industrial power electronics applications, providing accurate measurement of highly distorted ac currents, dc currents and pulsed dc currents such as those in full and half-wave rectifiers. In addition the instrument is ideal for the accurate measurement of inrush currents.
The Hioki 3290 has outputs for waveform recording and effective value, dc current and frequency recording on oscilloscopes or the Hioki family of memory HiCORDERs. A switchable 500Hz low pass filter facilitates the removal of higher harmonics when required. The Hioki 3290 is powered by alkaline dry cells or by an optional ac adapter. The other options include recorder output cables and a convenient carrying case with sufficient space to hold the three clamp-on sensors.