Newest Version of PumpSmart® Features Sensorless Flow Measurement


    (Seneca Falls, NY October 23, 2006) ITT Monitoring and Control introduces Version 5.0 for the PumpSmart PS200. Some of the exciting technical highlights of V5.0 are SMARTFLOW, Advanced Pump Protection, Positive Displacement Pump Protection, and SMARTCONTROL.

    SMARTFLOW is a proprietary sensorless flow measurement function which has the ability to calculate the flow of a centrifugal pump within ±5% of the pump rated flow without the need for any external instrumentation. This function mathematically models the pump power curve with only four points of CDS pump performance curve data, BEP flow, BEP power, shut off power, and rated speed.

    Advanced Pump Protection (APP) is an improvement upon the already powerful Torque Based Pump Protection. APP is a sensorless pump protection function that takes into account the hydraulic and mechanical losses associated when changing the speed of a centrifugal pump. A self-calibration feature allows for an accurate representation of the pump to ensure the pump is protected at all speeds.

    Positive Displacement Pump Protection (PDPP) is a sensorless function that it is protecting for a constant torque load such as a positive displacement pump. Because PDPP is used with constant torque loads, it does not take into account changes in speed such as APP. PDPP monitors for conditions such as high and low torque which can be an indication the pump has a blocked discharge or a starved suction.

    SMARTCONTROL is an improved way to control pumps with flat head-capacity curves where a small change in speed can lead to a large change in flow. A flat head-capacity curve can make tuning a pump system difficult leaving the pump to oscillate around the setpoint. In general, to increase the flow of the pump, the speed is increased and subsequently the torque increases as a result. With SMARTCONTROL the exact opposite happens. If you were to increase the flow of the pump, the pump torque is increased and subsequently the pump speed follows. The advantage is that the torque performance curve is much steeper relative to speed and can typically yield a control resolution 2-3 times greater than speed.

    For more information, visit our website, or contact Dan Kernan, PumpSmart Product Manager, ITT Monitoring and Control, (315) 568-7874.

    About ITT

    ITT Corporation supplies advanced technology products and services in key markets including: fluid and water management including water treatment; defense communication, opto-electronics, information technology and services; electronic interconnects and switches; and other specialty products. Headquartered in White Plains, NY, the company generated $7.4 billion in 2005 sales. In addition to the New York Stock Exchange, ITT stock is traded on the Midwest, Pacific, Paris, London and Frankfurt exchanges.