Spot Cooling Fan has tachometer output feature.

Press Release Summary:

Ranging in size from 25-172 mm, 12 tach output dc thermally controlled fans allow users to monitor fan performance in their electronic enclosures, and trigger alarm/indicator if fan speed falls below certain rpm. Tachometer output offers square-wave frequency equal to 2 periods per revolution, and is available as either 5 V TTL signal or as open collector signal. UL/cUL, TUV, VDE, and CE approved fans are suited for industrial controls, servers, telecommunications, and motor drives.

Original Press Release:

Orion Fans Develops Thermally Controlled Spot Cooling Fan for Industrial Enclosures

More than 12 tach output DC fan models from 25mm to 172mm ready to ship from stock...

Orion Fans Now Shipping Tachometer Output Fans From Stock

LAS VEGAS, NV (May 6, 2008) - Providing an alternative to long lead times for custom function fans, Orion Fans is now stocking significant quantities of more than 12 models of its popular DC fan models with a tachometer output feature, giving them the ability to deliver volume orders directly from stock. The fans include models ranging in size from 25mm to 172mm.

"More of our customers are requiring the tachometer output option on DC fans because they need to be able to monitor the fan performance in their electronic enclosures, and trigger an alarm or indicator if the fan speed falls below a certain RPM," said Kevin Knight, Marketing Manager for Orion Fans. "We, along with many of our distributors, offer the tachometer output option as well as other special function iterations on more than 12 different DC fan models from stock."

Designed to provide a square-wave frequency equal to 2 periods per revolution, the tachometer output enables the design engineer to monitor and report the fan's rotational speed as well as trigger an alarm signal to indicate that the fan has stopped or slowed significantly. The tachometer output option is available as either a 5V TTL signal or as an "open collector" signal, and is available in combination with rotation detection alarm signal options, thermistor speed control, PWM control functions, or temperature sensor controls.

All Orion Fans are UL/cUL, TUV, VDE and CE approved. Their DC fans are suitable for a wide range of applications, including industrial controls, servers, telecommunications, computer equipment, motor drives and cabinets, electronic enclosures and panels. Orion will also provide additional customization or value added services depending on customer requirements.

JIT delivery programs are available worldwide.

For more information about Orion's DC fans with tachometer output, contact an authorized Orion distributor; or contact Orion Fans at 10557 Metric Dr., Dallas, TX, 75243; call 800-323-2439, e-mail at or visit Orion on the web at

Orion Fans, a division of Knight Electronics, Inc. is an ISO9001/2000 global manufacturer of AC and DC cooling fans and fan trays. Fans are available in sizes from 17mm to 280mm. A wide range of fan accessories is available, including finger guards, fan cords and cordsets. The company has engineering and manufacturing facilities in the United States, Europe and Asia.

Keywords: Orion Fans, Knight Electronics, DC Fans, tachometer output, cooling fans

For more information, contact:
Kevin Knight
Knight Electronics
(214) 340-0265

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