Lighting systems are designed to ensure visibility. In cleanrooms, ultraviolet (UV) light can also be utilized to disinfect the air. UV devices can be installed in ceiling light fixtures to irradiate the air, effectively killing potentially infectious particles, including up to 99.99% of airborne microbial and fungal contaminants. In the United States, the unit of lighting luminance is the foot-candle, which is equivalent to 1 lumen per square foot. Lumens measure the light output (luminous flux) of a source.
The key characteristics to be considered in fluorescent lamps are the color temperature, color rendering index (CRI) and lumen output.
Color Temperature
Color temperature describes how occupants within the room will perceive the light source.
Color temperature is measured by Kelvin degrees, ranging from 9000K (which appears blue) down to 1500K (which appears orange red).
Typically, lamps are specified between 4000K, described as cool, and 3100K, which are described as warm.
Lamps with temperatures around 3500K are considered “neutral” and often specified in cleanrooms.
Color Rendering Index (CRI)
Color rendering describes the effect a light source has on the appearance of colored objects. The CRI scale ranges from 0 to 100 with most lamps available from 60 to 90 CRI. In general, with higher CRIs, the color appearance of objects will be more accurate within the room. Lamps with CRIs of 85 are commonly specified for cleanrooms.
Lumen Output
Lumen ratings can vary depending on the lamps used. Specifying lamps with higher initial lumens will reduce the number of fixtures required to achieve a desired foot-candle level. However, the number of light fixtures and their spacing should be reviewed to produce a uniform lighting level throughout the space.
Ultraviolet (UV) Spectrum
Fluorescent lamps produce some energy in the ultraviolet (UV) spectrum, which can be detrimental to certain cleanroom processes. UV filtering can be accomplished with lens shielding or tubes to cover the lamps. However, this shielding converts the visible light to yellow color, which is not as pleasing to the occupant. While the shielding may reduce illumination levels by only 10 to 20 percent, the perceived lighting levels can seem less due to the color shift.
Features
Energy Efficiency
Low Maintenance
Long Life
UV Light
UV light is used to reduce bacteria or other biological contaminants.
Designed with contamination control issues—electromagnetic field generation and cleanability—in mind.
In ISO Class 4 (Fed-Std-209E Class 10) or higher cleanrooms, most of the ceiling space is dedicated to air filters. The remaining areas are situated directly beneath the channels of the ceiling grid. The fixtures are designed with an aerodynamic, teardrop shape.
The purpose of this design was to minimize disturbance of the laminar airflow down into the room from the ceiling air supply.
Lower profile teardrops are available using smaller diameter lamps and extend only three to four inches below the ceiling.
Regulatory Compliance
These luminaries are UL listed and CSA certified for wet locations and are manufactured in accordance with USDA, FDA, and NSF guidelines. All fixtures have been tested and reported in compliance with Federal Standard 209.
Air Foil Design: Teardrop Light Fixture features a narrow, airfoil design which minimizes turbulence in cleanrooms requiring a unidirectional air flow. The fixture is suitable for use in Federal Standard 209 Class 100 to 100,000 and ISO Class 5 to 9 cleanroom environments.
Smooth Environmental Side: A single-piece, clear extruded prismatic acrylic lens with an internal horizontal prism pattern ensures a smooth surface on the environmental side. White, closed-cell gasketing seals the lens to the end caps, preventing biohazardous contaminants from growing inside the fixture. The enclosed 2-inch wide gasketed housing can be mounted on any 2-inch T-Bar. Recessed 7/8-inch diameter knockouts on each end cap and at each end of the mounting surface allow for vapor-tight conduit fittings, enabling either continuous row mounting or top access.
Sealed End Caps: The housings are made from die-formed 22-gauge cold-rolled steel (CRS) with 16-gauge spot-welded and sealed end caps. They feature a standard white, high-reflectance polyester powder coat finish with a gloss level of 85%, a reflectance of 93%, a hardness rating of 2H, and a salt spray resistance of 500 hours.
Mounting Data: the power connection thru the top of the fixture and the T-Bar. A hole must be drilled in the T-Bar for allowing the wires to pass thru. Knockouts are located on each end of the top surface for allowing power connections. The fixture is secured to the T-Bar thru the holes located on the top of the fixture.
|
Ordering Information |
||||||
|
Nominal Size |
Voltage |
Cycle |
Ballast |
Amps |
Watts |
Weight |
|
4’ |
120V -277V |
50/60 Hz |
T8 Electronic |
*1 |
32 / 128 |
12 lbs. (5.5 kg.) |
Cleanrooms with an ISO Class 5 (Class 100) or above rating may have sufficient free area in the ceiling to accommodate 234 or 232 recessed fixtures.
Recessed fixtures may also be combined with HEPA air filters when a space needs both a filter and a light. This fixture is typically used in small, pre-manufactured cleanrooms.
The fixtures are recessed with open tops and with an acrylic louver in lieu of the lens to serve as both a lighting fixture and an air delivery module. They are used in the most restrictive class of cleanrooms, where the entire ceiling area must be covered with air supply modules
Recessed fixtures are usually supported by the ceiling grid and sit on a gasket flange or within a gel-filled channel to maintain an airtight seal.
Total and reliable seals are required for recessed fixture housings regardless of cleanroom classification.
Even a microscopic opening in the housing will permit the entry of the particles from the air supply above the ceiling grid to enter the cleanroom during fixture maintenance.
Regulatory Compliance
Pharmaceutical Industries: These lights help maintain sterile conditions, crucial for drug manufacturing and research.
Semiconductor Industries: They provide precise lighting while minimizing contamination risks in the production of microelectronics.
Hospitals and Healthcare Facilities: Used in operating rooms and laboratories to ensure a clean and safe environment.
Food Production Facilities: Help maintain hygiene standards in areas where food is processed and packaged.
Clean Production Areas: Essential in industries where even small particles can affect the quality of the product, such as aerospace and optics
Surface mount fixtures are generally used only when another configuration is not practical due to site-specific restrictions. In general, surface mount fixtures are only applicable to ISO Class 7 (Class 10,000) or above cleanrooms or to cleanroom utility chases (gray areas). Their shape cannot be made aerodynamic, and some turbulence of the airflow is unavoidable.
Ultra-Thin Design: These fixtures are typically very thin, ranging from 8mm to 15mm in thickness. This slim profile helps in minimizing dust accumulation and makes the fixtures less obtrusive.
Ease of Installation: Surface mount fixtures are straightforward to install, which can save on labor costs and reduce downtime during maintenance.
Durability and Cleanliness: They are designed to withstand the rigorous cleaning protocols of cleanrooms, often featuring IP65 or higher ratings to protect against dust and moisture.
Energy Efficiency: Many surface mount cleanroom lights use LED technology, which is energy-efficient and has a long lifespan, reducing the frequency of replacements and maintenance.
Versatility: These fixtures can be used in various cleanroom environments, including pharmaceutical manufacturing, semiconductor production, and healthcare facilities.
Pharmaceutical Manufacturing: Ensures a sterile environment for drug production.
Semiconductor Production: Provides precise lighting while minimizing contamination risks.
Healthcare Facilities: Used in operating rooms and laboratories to maintain a clean and safe environment.
Food Production: Helps maintain hygiene standards in food processing and packaging areas.
Lighting systems are designed to ensure visibility. In cleanrooms, ultraviolet (UV) light can also be utilized to disinfect the air. UV devices can be installed in ceiling light fixtures to irradiate the air, effectively killing potentially infectious particles, including up to 99.99% of airborne microbial and fungal contaminants. In the United States, the unit of lighting luminance is the foot-candle, which is equivalent to 1 lumen per square foot. Lumens measure the light output (luminous flux) of a source.
The key characteristics to be considered in fluorescent lamps are the color temperature, color rendering index (CRI) and lumen output.
Color Temperature
Color temperature describes how occupants within the room will perceive the light source.
Color temperature is measured by Kelvin degrees, ranging from 9000K (which appears blue) down to 1500K (which appears orange red).
Typically, lamps are specified between 4000K, described as cool, and 3100K, which are described as warm.
Lamps with temperatures around 3500K are considered “neutral” and often specified in cleanrooms.
Color Rendering Index (CRI)
Color rendering describes the effect a light source has on the appearance of colored objects. The CRI scale ranges from 0 to 100 with most lamps available from 60 to 90 CRI. In general, with higher CRIs, the color appearance of objects will be more accurate within the room. Lamps with CRIs of 85 are commonly specified for cleanrooms.
Lumen Output
Lumen ratings can vary depending on the lamps used. Specifying lamps with higher initial lumens will reduce the number of fixtures required to achieve a desired foot-candle level. However, the number of light fixtures and their spacing should be reviewed to produce a uniform lighting level throughout the space.
Ultraviolet (UV) Spectrum
Fluorescent lamps produce some energy in the ultraviolet (UV) spectrum, which can be detrimental to certain cleanroom processes. UV filtering can be accomplished with lens shielding or tubes to cover the lamps. However, this shielding converts the visible light to yellow color, which is not as pleasing to the occupant. While the shielding may reduce illumination levels by only 10 to 20 percent, the perceived lighting levels can seem less due to the color shift.
Features
Energy Efficiency
Low Maintenance
Long Life
UV Light
UV light is used to reduce bacteria or other biological contaminants.
Designed with contamination control issues—electromagnetic field generation and cleanability—in mind.
In ISO Class 4 (Fed-Std-209E Class 10) or higher cleanrooms, most of the ceiling space is dedicated to air filters. The remaining areas are situated directly beneath the channels of the ceiling grid. The fixtures are designed with an aerodynamic, teardrop shape.
The purpose of this design was to minimize disturbance of the laminar airflow down into the room from the ceiling air supply.
Lower profile teardrops are available using smaller diameter lamps and extend only three to four inches below the ceiling.
Regulatory Compliance
These luminaries are UL listed and CSA certified for wet locations and are manufactured in accordance with USDA, FDA, and NSF guidelines. All fixtures have been tested and reported in compliance with Federal Standard 209.
Air Foil Design: Teardrop Light Fixture features a narrow, airfoil design which minimizes turbulence in cleanrooms requiring a unidirectional air flow. The fixture is suitable for use in Federal Standard 209 Class 100 to 100,000 and ISO Class 5 to 9 cleanroom environments.
Smooth Environmental Side: A single-piece, clear extruded prismatic acrylic lens with an internal horizontal prism pattern ensures a smooth surface on the environmental side. White, closed-cell gasketing seals the lens to the end caps, preventing biohazardous contaminants from growing inside the fixture. The enclosed 2-inch wide gasketed housing can be mounted on any 2-inch T-Bar. Recessed 7/8-inch diameter knockouts on each end cap and at each end of the mounting surface allow for vapor-tight conduit fittings, enabling either continuous row mounting or top access.
Sealed End Caps: The housings are made from die-formed 22-gauge cold-rolled steel (CRS) with 16-gauge spot-welded and sealed end caps. They feature a standard white, high-reflectance polyester powder coat finish with a gloss level of 85%, a reflectance of 93%, a hardness rating of 2H, and a salt spray resistance of 500 hours.
Mounting Data: the power connection thru the top of the fixture and the T-Bar. A hole must be drilled in the T-Bar for allowing the wires to pass thru. Knockouts are located on each end of the top surface for allowing power connections. The fixture is secured to the T-Bar thru the holes located on the top of the fixture.
|
Ordering Information |
||||||
|
Nominal Size |
Voltage |
Cycle |
Ballast |
Amps |
Watts |
Weight |
|
4’ |
120V -277V |
50/60 Hz |
T8 Electronic |
*1 |
32 / 128 |
12 lbs. (5.5 kg.) |
Cleanrooms with an ISO Class 5 (Class 100) or above rating may have sufficient free area in the ceiling to accommodate 234 or 232 recessed fixtures.
Recessed fixtures may also be combined with HEPA air filters when a space needs both a filter and a light. This fixture is typically used in small, pre-manufactured cleanrooms.
The fixtures are recessed with open tops and with an acrylic louver in lieu of the lens to serve as both a lighting fixture and an air delivery module. They are used in the most restrictive class of cleanrooms, where the entire ceiling area must be covered with air supply modules
Recessed fixtures are usually supported by the ceiling grid and sit on a gasket flange or within a gel-filled channel to maintain an airtight seal.
Total and reliable seals are required for recessed fixture housings regardless of cleanroom classification.
Even a microscopic opening in the housing will permit the entry of the particles from the air supply above the ceiling grid to enter the cleanroom during fixture maintenance.
Regulatory Compliance
Pharmaceutical Industries: These lights help maintain sterile conditions, crucial for drug manufacturing and research.
Semiconductor Industries: They provide precise lighting while minimizing contamination risks in the production of microelectronics.
Hospitals and Healthcare Facilities: Used in operating rooms and laboratories to ensure a clean and safe environment.
Food Production Facilities: Help maintain hygiene standards in areas where food is processed and packaged.
Clean Production Areas: Essential in industries where even small particles can affect the quality of the product, such as aerospace and optics
Surface mount fixtures are generally used only when another configuration is not practical due to site-specific restrictions. In general, surface mount fixtures are only applicable to ISO Class 7 (Class 10,000) or above cleanrooms or to cleanroom utility chases (gray areas). Their shape cannot be made aerodynamic, and some turbulence of the airflow is unavoidable.
Ultra-Thin Design: These fixtures are typically very thin, ranging from 8mm to 15mm in thickness. This slim profile helps in minimizing dust accumulation and makes the fixtures less obtrusive.
Ease of Installation: Surface mount fixtures are straightforward to install, which can save on labor costs and reduce downtime during maintenance.
Durability and Cleanliness: They are designed to withstand the rigorous cleaning protocols of cleanrooms, often featuring IP65 or higher ratings to protect against dust and moisture.
Energy Efficiency: Many surface mount cleanroom lights use LED technology, which is energy-efficient and has a long lifespan, reducing the frequency of replacements and maintenance.
Versatility: These fixtures can be used in various cleanroom environments, including pharmaceutical manufacturing, semiconductor production, and healthcare facilities.
Pharmaceutical Manufacturing: Ensures a sterile environment for drug production.
Semiconductor Production: Provides precise lighting while minimizing contamination risks.
Healthcare Facilities: Used in operating rooms and laboratories to maintain a clean and safe environment.
Food Production: Helps maintain hygiene standards in food processing and packaging areas.
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