Control Resources will exhibit its SmartFan® line of fan and motor speed controls. Products include a.c. speed controls for single-phase motors, fans, and pumps up to 1 hp. Control can be based on sensing environmental conditions (temperature, pressure, humidity, radon) or a control signal (0 to 10 V d.c. 0 to 20 mA). CRI will also introduce the SmartFan OLS, which accepts a universal a.c. input and controls d.c. fans and motors. According to the company, OLS offers the flexibility and efficiency of using d.c. fans and motors for applications that only have an a.c. power source. Other products exhibited include d.c. speed controls, temperature alarms, fan alarms, and fan trays. Both standard and custom products will be shown in the booth.
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