The Model EP-1 Econo pump is a 2-channel bidirectional variable-speed peristaltic pump for low-pressure chromatography or for pumping liquids in general laboratory procedures. It offers a full range of features as a stand-alone peristaltic pump, and is fully compatible with the BioLogic Duoflow system. Key features include: Flow rate display (in ml/min) and time or volume control of programs. Preset calibration for common tubing sizes (0.8, 1.6, and 3.2 mm ID). Manual calibration for nonstandard-size tubing, or when improved flow rate accuracy is desired. Control of the Model 2110, BioFrac, or other fraction collectors. Control of run length with programmable total run volume. Control of SV-3 solenoid diverter valve to divert eluent to column or waste. Communication with Model 1327 Econo recorder.