CHART RECORDER - A portable chart recorder used with several physiologic testing devices. Recorder prints waveforms in real time from any of the attached instruments. Plays audio signals if produced by the attached instrument. The recorder has a rechargeable internal battery.
A mains electricity (AC-powered) electronic device, which may include internal rechargeable batteries, intended to receive an input signal (e.g., from a physiological amplifier, signal conditioner, computer) which it converts and transcribes onto paper so that the information is stored in the form of a permanent document (hard copy). It will typically include a paper chart driven at constant speed by a motor and a pen(s) that moves back and forth in response to the signal, a printing array (e.g., thermal or electrostatic), or another device for printing on paper. It may be stationary or portable and will typically be used in the absence of a built-in chart recorder.