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Lab Instrumentation
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 Watson Marlow 205U 24 Channel Peristaltic Pump
• Auto/manual select through keypad 
• Flow rates from 0.0003 to 22.0 mL/min    
• PWM, microprocessor controlled closed loop 
speed regulation 
• Manual speed control via membrane keypad 
• Remote speed control via analog signals up to 30 V 
or 32 mA, or potentiometer 
• Manual control of stop/start, direction and 
priming via membrane keypad 
• Remote operation of stop/start and direction via 
contact or TTL switching 
• Motor running/stopped status via 5 V Hi/Low 
signal output 
• 5 V square wave or analog tacho output 
• 25 pin D connection for analog control 
• Instant stop, and reverse 
• LCD display of  pump speed 
• “Auto restart", and "Keypad lock" functions 
• Fitted with 205CA 8-roller low pulse pump head 
• Accepts manifold  tube elements, 0.13 mm to 
2.79 mm bore 
• Versions from 4 to 32 channels available