The Model 76599 PLE (Plethysmograph) Coupler is designed for use with any electronic multiple function amplifier to give the examiner the option to select the time constant which provides the most useful recording with each subject. A total of four capacitively coupled (AC) modes are available with time constants of 0.1, 0.5, 1.0, and 5.0 seconds. A (DC) mode is also available with controls for balance and trace restore.
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