SmartFan Cirrus is a user-programmable, microprocessor-based interface for DC fans with built-in speed control based on a pulse width modulation or voltage control input. It regulates fan speed from a control signal (0-20mA, 0-10 VDC), remote transducer, or thermistor. Alarm outputs are provided for overtemperature, loss of control signal, and failed fan conditions. Features include onboard programming and three mounting and connection configurations, including DIN rail mount and "4x4 job box" mount.
Control Resources Inc., 11 Beaver Brook Rd., Littleton, MA 01460; 978-486-4160; 978-586-4772 (fax); email@example.com; www.controlres.com.