Cole-Parmer Norprene Replacement Tube set for 74200 series of pumps, 0.075" ID

Standard electric control models have user-friendly features, including the unique patented tube failure detection system, which senses tube failure by detecting chemicals in the pump head. Output can be adjusted from 1 to 100 percent by varying motor speed. Deluxe electric control models can accommodate many different inputs and outputs. Inputs include 4 to 20 mA, 0 to 10 VDC, and pulse inputs for external speed control; and 30 VDC contact closure remote start/stop. Outputs include scaleable 4 to 20mA and pulse, two 8-amp relays, and three 30 VDC contact closures. All features are controlled via the VGA backlit LCD and digital touch pad with menu-driven software.