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BL-48 DMX Ultraviolet Illuminator 

 
The BL-48 Ultraviolet Illuminator is a state of the art lighting instrument based on an array of 48 
Ultraviolet LED's and a computer micro-controller.  This unit permits ultraviolet effects to be faded 
or strobed under DMX control.  These effects cannot be created with other types of UV 
illumination.  The LED UV devices do not require replacement, produce little or no heat, and are 
available in a range of dispersion angles and UV or near-UV wavelengths.  From one to four 
channels of DMX-512 data controls UV intensity, strobe rate, or other parameters as determined by 
the LED configuration, and the settings of internal mode jumpers.  The unit may also be operated in 
manual mode without DMX as a stand-alone fixture with preset intensity and strobe timing if 
desired.  Illuminators may be controlled by any DMX lighting system for professional displays, or 
may be set up for independent operation at a preset intensity or strobe rate in stand-alone UV 
lighting applications. 

 

A range of UV LED options are now available for installation in the unit.  For replacing existing 
fluorescent or incandescent UV light sources, 395 nanometer UV LED's may be installed to 
duplicate the deep blue-violet output common to those fixtures.  For pure ultraviolet displays, 385 
nanometer LEDs,  which produce very little visible light may be selected.  UV LED sources of 
different types, or with different dispersion angles may be installed in the same fixture, with each 
LED type then controlled independently through DMX, providing unprecedented flexibility in an 
ultraviolet fixture.  All LED emissions are long wavelength UV-A light, which is not considered a 
skin or an eye hazard

 

under normal conditions.

 

 

 

PRECISION PROJECTION SYSTEMS INCORPORATED 
17508 STUDEBAKER ROAD, CERRITOS, CA 90703-3638 
TELEPHONE: 562 865-8552 FACSIMILE: 562 924-7133 
WEBSITE 

www.ppsfx.com

 

EMAIL: 

info@ppsfx.com

 

Summary of Contents for BL-48

Page 1: ...ghting system for professional displays or may be set up for independent operation at a preset intensity or strobe rate in stand alone UV lighting applications A range of UV LED options are now available for installation in the unit For replacing existing fluorescent or incandescent UV light sources 395 nanometer UV LED s may be installed to duplicate the deep blue violet output common to those fi...

Page 2: ...nded for operation with external power supplies which comply with the SELV Safety Extra Low Voltage requirements Operation of the unit from power sources which do not meet the SELV standard is not recommended and may result in an increased risk of electrical shock Suitable Mounting Surfaces The BL 48 unit may be mounted to any suitable surface including those consisting of normally flammable mater...

Page 3: ...DIATION CLASS 1M LED PRODUCT Controls and Connections The rear panel of the unit includes a power input jack for a UL approved Class II 24 volt DC power source a red LED power indicator and three rotary selector switches to choose the base DMX address for the device A slide switch to the left of the address switches can be set to provide a resistive termination to the DMX data lines if the unit is...

Page 4: ...n read the address information selected on the three DMX address switches and will respond to appropriate DMX commands or to manual operation instructions as established by those switch settings and the internal mode selected After the start sequence is complete the DMX Sync indicator will illuminate steadily in green when valid DMX data is being received and will not illuminate or will flash inte...

Page 5: ...olerate minor interruptions in the DMX data stream caused by poor connections or brief dropouts After this interval the unit will default to the normal no DMX data state with all output channels inactive Normal operation will resume immediately when the normal data stream is restored DMX Troubleshooting If the Sync indicator is not steadily illuminated when DMX data is connected then there is eith...

Page 6: ... Bank 2 Intensity Bank 3 Intensity Mode Selection The Mode Select jumpers are J7 and J8 located near the right edge of the main circuit board between the large regulator IC and the power input socket Move the shorting jumpers as indicated in the diagram below to change the operating mode Refer to the parts layout drawing which appears later in this manual for further illustrations of the jumper lo...

Page 7: ...dividual control of Intensity for each of the three banks of 16 LED devices installed in the unit This mode uses three DMX channels beginning with the base address selected by the address switches The data on the first DMX channel will control the intensity of the LED devices in Bank 1 with a zero level producing no output and a maximum level of 255 producing maximum output The data levels on the ...

Page 8: ...gramming Operation of the unit in Manual Mode is controlled by the settings of the DMX address switches The output of the unit may be adjusted using the address switch settings to obtain a wide range of intensity levels and strobe rates Once established manual mode settings are retained when power is removed from the unit and will be restored when power is reapplied provided that no changes are ma...

Page 9: ...ramming then reads the settings of the internal mode jumpers to determine the general display configuration Once these settings are established the controller then reads the settings of the DMX address switches and goes into either a manual display mode if the address settings are 600 or higher or a DMX controlled mode if the address settings are in the range of from 1 to 512 If no DMX data is ava...

Page 10: ...he processor operates from permanent firmware EPROM programming which controls all functions of the illuminator This programming is performed during manufacturing and may not be re written by the user The microcontroller has three 8 bit input output ports which may be programmed as needed for each particular application These ports are commonly identified by letter designations B C and D In the BL...

Page 11: ...tors Q1 2 and 3 responding to control voltages from the microcontroller to determine the current flow through each portion of the array Depending on the settings of the microcontroller each of the three section may be controlled independently ar will act as a single unit Service Access The active electronics of the BL 48 illuminator are mounted on two circuit boards inside the main housing of the ...

Page 12: ...its To check the basic function of the unit remove power and DMX connections and set the unit to manual mode by setting the DMX address switches to 699 Reapply power to the unit and observe the display If a normal display is observed then the LED and driver circuits are fully functional but the DMX control input signal is absent or is being ignored by the illuminator Check the setting of the mode ...

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