US-based Thermo Fisher Scientific Inc introduced earlier this year its new Thermo Scientific Masterflex P/S line of digital peristaltic pumping systems.

The P/S line is available in a wide range of complete systems, which include either a standard digital drive; a computerised drive; or a stainless steel NEMA 4X process drive. The Masterflex P/S digital pump provides a number of important advantages for the industrial user, including repeatability of 0.1 per cent to maximise productivity in precision chemical feed, batch dispensing and filling applications. A turndown ratio upwards to 6,000-to-1 provides users with substantial flexibility in volume and time of dispense in addition to a smooth, seamless operation and an extremely broad flow range within a single tubing size. Plus, with flow capacities from 0 to 54 GPH, a flow range of 380,000-to-1 in one pump head can be achieved.
P/S pump systems are available as a complete system with Masterflex Easy-Load 2 or high performance pump heads. The pumps are self-priming, able to operate dry and suitable for most chemicals, and contain no valves or seals to replace. Fluid only contacts the tubing, providing for contamination-free pumping.
A special feature of the new Masterflex P/S pumping system is a multi-language, intuitive, man/machine interface with four-line graphical LCD display providing direct readout of pump speed (RPM), flow rate (mL/min), three dispensing modes and menu options.
“For the operator, an easy-to-use keypad eliminates set point overshoot and provides easy navigation that includes a number of on-screen programming features and a wide range configurable remote control capability, including RS232 and USB connectivity,” the company highlighted.
“Furthermore, the brushless, no-maintenance drives have built-in diagnostics for improved reliability. This, combined with its bidirectional flow and self-priming capabilities, high turndown, superior accuracy, and intuitive interface make the P/S pump systems ideally suited in virtually all applications where precise, repeatable flow control is required.”