HM-250 Auto-Tuning Distortion Meter -- HM-250

The HM-250 is a distortion meter capable of 0.1% full scale measurement continuously over the frequency range of 20 Hz to 20 kHz, with a typical residual distortion of 0.01%. It makes full use of pushbutton switches and provides a calibration which can be activated with a single operation regardless of the selected distortion measurement range. Carrier frequency elimination is performed by an automatic tuning technique, thereby greatly simplifying operation. The HM-250 is also usable as a high-sensitivity (100�V f.s.) AC voltmeter.

Features

Automatic Tuning
X-Y Outputs for Waveform Observation
High Sensitivity
Single-Operation Calibration