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LS Series | Models | Features | Specifications | Options | Controls | Package drawing | Interface | Download Brochure |
LS Series Electronic Ballasts
| LSA Electronic Ballast |
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| LSC Electronic Ballast |
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UV Electric's LS Series is the most comprehesive high power electronic ballast product line-up offered today on the market. These ballasts, or power supplies designed to drive gaseous discharge lamps, power medium pressure UV lamps with a medium frequency, 400Hz square wave to assure stable, acoustic resonance free lamp operation. The underlying technology, a combination of high and medium frequency power processing, improves response, shrinks package size, and reduces cost.
The LS Series electronic ballasts are more efficient than comparable electromagnetic ballasts. A significant increase in UV radiation is obtained at nominal output due to the constant, non-pulsating light output. For variable UV output systems, where regulation is required, efficacy improvement over conventional ballasts are much more significant. This not only translates into energy cost savings, but also simplifies system level engineering and thermal management.
The use of UV Electric's LS Series ballasts also reduces the so called relamping costs as igniting with UV Electric's standard, internal 2kV pulse igniter and operating discharge lamps at unity current crest factor (crest factor defined as a ratio between the peak and the rms value) is the optimal condition for minimizing electrode wear and therefore extending lamp life by reducing lamp wall blackening, caused by electrode sputtering, and associated UV output reduction.
The LS Series product line-up covers the 3.3kW to 60kW power range with 44 models either with front-panel control, the LSA Series, or without it, the LSC Series. Both options have a switch that energizes the control circuits without turning on the main power. These controls are tied to a mechanical contactor to break the ac mains when stop is commanded. Each model can be programmed remotely via analog inputs (resistance, voltage, or current), via RS232 digital interface or by optional Ethernet interface.
UV Electric's LS Series ballasts are rack-mountable up-to 45kW, while the 60kW models are cabinet mounted. Air cooling is standard (air intake on the side and exhaust in the back of the rack-mountable units and air intake in the front and exhaust on the top of the cabinet mounted units) while water-cooling is optional.
The LS Series ballasts's diagnostic functions include lamp and ballast status monitoring. These ballasts have three levels of over current protection: shutdown of controlling insulated gate bipolar transistors (IGBT's), disconnect of main power, and internal fusing. If the fault condition requires user attention, such as open circuit conditions caused by a failed lamp, main power is disconnected and the diagnostic condition is latched into memory.
Finally, UV Electric's internal pulse igniter enables the use of the same ballast with variety of lamps with all kind of dopings (and same electrical, voltage and current, properties). Igniting iron dopped lamps, a well known problem, is no issue.
Mechanical specifications
Outline drawings and electrical interface
| LSA Series front panel |
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| LSC Series front panel |
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| LSA Series package drawing, 3.3kW-45kW |
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| LSC Series package drawing, 3.3kW-45kW |
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| LSA Series package drawing, 60kW |
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| Terminal definitions for JS1 and JS2 |
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Download LS Series Brochure (471 KB)
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| UV Electric, Inc. www.uvelectric.com |
High power electronic ballasts critical to driving high power, medium pressure UV lamps used in curing and germicidal applications. |
Last updated: June 04, 2008 |
© 2008 UV Electric, Inc. |
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