PWM Spray Control Panel
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PWM Spray Control Panel - 1

1.800.95.SPRAY | Intl. 1.630.665.5000 | www.spray.com Typical Applications Food Processing Antimicrobials Oil/Water Coating AutoJet® PWM Spray Control Panel System Features Simple, cost-effective method for implementing PWM Flow Control Drives Spraying System Co. PulsaJet Automatic Spray Nozzles to maximum cycle speed of 10,000 cycles per minute Drives up to 16 PulsaJet Automatic Spray Nozzles connected in parallel Built-in AutoJet Model 1008-PWM Module Panel contains power supply, fuses and all necessary equipment for “plug-and-spray” operation Application Security – Duty cycle can be set by dial on the front panel or inside, depending on a selector switch inside the panel The AutoJet PWM Spray Control Panel provides a convenient way to activate electronic nozzles at a specific frequency and duty cycle. The control panel is specifically designed to drive Spraying Systems Co.’s PulsaJet® Automatic Spray Nozzles and includes a power supply and all components needed for “plug-and-spray”operation. The panel can be used as a stand-alone control panel or may be controlled by a remote external system to drive up to sixteen PulsaJet Spray Nozzles. Local or Remote Control: In “Local” mode, spray nozzles are activated by the“Output” switch and PWM duty cycle is controlled using a dial on the front panel. To prevent accidental changes by an operator, a toggle switch inside the cabinet can require that duty cycle be controlled using a dial located inside the enclosure. In “Remote” mode, spray nozzles may be activated by a sensor and their duty cycle may be controlled by an external control system such as a PLC. The Benefits of Pulse Width Modulated (PWM) Flow Control Flow rate can be controlled very precisely by cycling the electrically-actuated spray nozzle on and off quickly at a controlled frequency. For a duty cycle of 50%, the nozzle is spraying half the time and the flow will be 50% of the maximum flow rate at a given pressure for the nozzle. Using PWM Flow Control: • Relatively low flow rates can be generated with larger, clog-resistant spray tips • Overspray is minimized • Chemical consumption can be reduced • Extremely high flow turndown ratios can be achieved at a single pressure 25 10 90 75 50 AutoJet Model 1008-PWM Spray Control SPRAY C O N T R O L From

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PWM Spray Control Panel - 2

North Avenue and Schmale Road, P.O. Box 7900, Wheaton, IL 60187-7901 USA Tel: 1.800.95.SPRAY Intl. Tel: 1.630.665.5000 Fax: 1.888.95.SPRAY Intl. Fax: 1.630.260.0842 www.spray.com Bulletin No. 662 Printed in the U.S.A. ©Spraying Systems Co. 2009 Spray Nozzles Spray Control Spray Analysis Spray Fabrication Specification Spray Control Panel Functions Output: Automatic Controls Input: • Off – Power to the unit is off and the system can not spray • Duty Cycle Control – 0 to 20mA • On – Power is supplied to the driver and the system sprays if commanded • On/Off Control – Switch to ground Control:...

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