Sophisticated iQLED Controllers From Schott

14 Sep 2004

The iQ 421 Controller fully utilizes the special features of the SCHOTT iQLED product line. The easy-to-use system features a 2 line/16 character display which allows simple set-up in four languages. Alternatively, users can set the operational parameters through the built-in RS-232-Interface, which also allows continuous monitoring of temperature, light output and status. Once set-up, the controller runs as a stand-alone unit.

The iQ421 provides features unmatched in the industry at an affordable price. A state-of-the-art controller, the iQ 421 automatically recognizes the maximum current requirements of the LED head and adjusts to the appropriate current. The LED temperature is continuously monitored. In case of over temperature the operational current will be automatically reduced, while displaying a warning signal to the user before permanent damage occurs to the LEDs. The normal mode allows continuous dimming of light intensity between 0 and 100%.

One unique feature is the Maintain mode - a light feedback loop to maintain intensity +/- 2% over operation of the LED head. It regulates the head current to compensate for degradation of LED output over time, self-heating, and changes in ambient temperature - all of which can affect light output.

In addition, the iQ421 features a trigger mode, with programmable delay to synchronize the unit with an external signal to extend LED lifetime and provide light only when needed. Moreover, it also has an internal strobe generator with frequencies between 15 Hz and 50 KHz to freeze motion of periodically moving objects. Programmable period and on-time can be combined with overdrive of trigger/strobe intensities up to 250%, while pre-defined overdrive rules of the LEDs are met.

For optimal implementation into automated systems, the iQ 421 can be remotely switched on/off in normal, maintain and strobe modes. Error control codes are displayed on the front LCD and transmitted to the host computer via RS-232.

The iQ121 LED Controller automatically recognizes the maximum current requirements of the LED head and adjusts the appropriate current. The LED temperature is continuously monitored. A temperature indicator LED warns of high-temperature conditions and alerts the user to check intensity setting or ambient temperature. The temperature indicator light also signals the user that the power supply is connected and functioning. The single-knob light intensity control adjusts from 0 to 100 percent. A remote on/off function can extend LED lifetime and provide light only when needed during part inspection.

Designed for use in industrial environments the heavy-duty metal housing has T-slot grooves for mounting and integrated cooling channels, which make a fan redundant. Connectors for light heads and power supplies are lockable to ensure safe operation. The 2 amp light source output of the controller can be powered with DC-power supplies between 12 and 24 volt, depending on colour and number of LEDs in the lighthead.

For further information about this release, please contact Nick Trevis at
Lambda Photometrics Ltd Lambda House, Batford Mill, Harpenden, Herts AL5 5BZ
Tel: 01582 764334 Fax: 01582 712084
nick@lambdaphoto.co.uk
For more information on Schott products click here

Lambda Photometrics

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Sophisticated iQLED Controllers From Schott

14 Sep 2004

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