MetaClamp® LED Ring Light Series SGL

The new MetaClamp® LED Ring Light Series SGL is a powerful yet compact illumination system for sanitary processing equipment providing illumination and viewing through the same window.

This unique combination sight/light glass incorporates the L.J. Star MetaClamp® system with METAGLAS® safety windows. They can be used to view the interior of either new or existing sanitary processing equipment.

Unlike other solutions that used separate viewing and fiber optic light assemblies, this innovative and compact design mounts directly onto sanitary ferrules for use in combined sight and light ports (single port). The design is both less expensive and more durable for industrial settings, since it uses fewer sub-assembly components.

METAGLAS® safety windows with the MetaClamp® sanitary connection provide the strongest, most secure sanitary viewing option available. Essentially immune to catastrophic failure, these windows are comprised of stainless steel and borosilicate glass, fused together to create a window so uniformly compressed it tolerates both extreme pressure and temperature, serving reliably for years in applications where conventional soda lime or BoroPlus windows fail repeatedly.

Three sizes of the SGL Light attach directly to either a 2-1/2”, 3”, 4”, 6” or 8” MetaClamp® view port, which eliminates separate mounting of the light source. The polished housing is made of 316 stainless steel, which carries NEMA 4X and IP68 ratings.

 

Key Applications:

Pharmaceutical, biotech, brewery and food processing industries. Used for illuminating bioreactors, mixers, brew kettles, filters and the interior of tanks, hoppers, silos, agitators, separators, pipelines and other, usually closed, containers in non-hazardous areas.

Product Specifications:

SGL LED Technology:

  • Ultra-bright LEDs provide up to 399 lumens, equal to a typical 80-Watt halogen light
  • Capable of continuous operation
  • Cool white, 5000K color temperature, optimized for stainless steel vessels
  • LEDs have long service life and are vibration and impact resistant
  • No heat radiation into process vessel (cold light output)

Protection & Operating Conditions:

    • Dust and waterjet tight to NEMA 4 & 4X and IP68
    • Approved for use in ambient temperatures from 0°C up to +50°C at the cable entry gland.

Electrical Data:

Operating voltage is 24VDC (+-10%) with continuous current of 10mA. The light is equipped with a 4-pin M8 connector and supplied with a 10-meter power cable (other lengths available). Cable also available with compact 3-minute timer and switch.

Electropolishing available.

What is Explosion-Proof Process Lighting?

Explosion-Proof Process Light
Explosion-proof process lighting solutions for industrial applications allow illumination in hazardous facility areas. Also referred to as EX lights, explosion-proof lights are suitable for illuminating processes in hazardous locations where combustible gases or vapors may be present, such as a critical processing line, pipeline, or a vessel.

L.J. Star Sheds Light on a Common Issue for Breweries

Beer is one of the oldest and the most largely consumed alcoholic beverages in the world.  This all-time favorite brew has been a staple at sporting events, social gatherings, and family barbecues for generations.  During the past few years, craft beers have created quite a buzz among younger consumers seeking a more unique palette than their parents’ traditional beer.  Craft breweries have experienced unprecedented growth by bringing an almost endless variety of beer styles to the market.  In fact, the overall global beer market is expected to reach $685 billion by 2025.

Key Lighting Questions for Craft Brewing Success

A “Light” Recipe for Craft Brewing Success

 

Halogen lamps were once the standard choice for craft brewers’ vessel sight glass lighting. However, a new generation of LED luminaires is growing in popularity for this application. Consider these questions to decide whether it’s time for your brewery to invest in making the switch to LEDs.

  1. How hard is it to verify your vessels are thoroughly cleaned?

An improperly cleaned vessel can quickly lead to costly cross-batch contamination problems and unsellable products. LED luminaires can provide twice the light output of halogens or more, so it’s easier to confirm the effectiveness of your cleaning process.

  1. What are the hidden costs associated with your halogen lights?

The output of a typical halogen bulb is 15 percent light and 85 percent heat, with the heat coming from the infrared light the bulb produces, which can’t be seen by the naked eye. Unlike halogens, LED luminaires produce 55.6 lumens per watt of electricity consumed while producing little or no heat. In contrast with halogen lights, which have fragile filaments, LED lights are vibration and impact resistant, offering dramatically longer lifetimes for lower maintenance costs and fewer process interruptions.

  1. What color do you think your beer is?

The yellowish light that halogens produce can be problematic if you need to check the beer’s color to make process adjustments at various points. Their 2800K color temperature also approximates dusk and can cause eye fatigue. LED luminaires typically produce a white light with a cool color temperature that is optimal for illuminating stainless steel vessels.

On the left we can see the perceived color produced by halogen lights and on the right we can see the more true to life color with LED luminaires sight glass lights.

Compare the perceived color produced by halogen lights (left) with the more true to life color when LED luminaires (right) are used.

 

  1. Are your halogen lights a pain to keep clean?

Halogen bulbs are installed in a wide range of fixtures, which may or may not be optimized for food and beverage production, complicating the cleaning process. In contrast, some of the latest LED luminaire designs have a wash-down-safe, crevice-free design that is dust and waterjet tight and are constructed of food-grade stainless steel.

  1. Does controlling your sight glass lighting require climbing a ladder?

Switching halogen lights on or off often requires climbing to the top of the vessel to access a manual switch on the light itself, raising the risk of injuries. A growing range of LED luminaires support remote control over a broader array of operating modes, such as momentary, short timed and long timed. A variety of factory-programmable options are also available, including timer duration, initial brightness, and LED on at power up.

  1. Do you customers prefer “greener” brewers?

LED luminaires provide optimal illumination while consuming just one-tenth of the energy of a conventional halogen light. Lowering your brewery’s carbon footprint by switching to LED luminaires helps reinforce the message that you’re serious about your operation’s impact on the environment.

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For more details on LED-based sight glass lighting options for craft brewing, download L.J. Star’s free informative white paper (pdf): Crafted for Success: Six Vital Questions for Brewery Sight Glass Lighting.

How to specify an ATEX explosion-proof light for your sight glass

How to specify an ATEX explosion-proof light for your sight glass

The many ratings and standards bodies can be a confusing alphabet soup of acronyms… ATEX, UL, NEC, IEC, IP and NEMA. When is ATEX the right one?ATEX Explosion Proof Logo

If you are considering an ATEX explosion-proof light for your sight glass, then you already know that a light with an ATEX rating will be safe to operate in a potentially explosive atmosphere.

First, forget about IP and NEMA ratings. Those define housings. For example,

Let There be (More) Light!

You may remember the old story about a man who is looking for his lost keys beneath a streetlamp. A passerby asks the man if he is sure about where he dropped them, and the man says, “Actually, I think I dropped them in the grass over there.” The passerby asks, “Then why aren’t you looking where you dropped them?” The first man answers, “Because the light is better here.”

On a street corner or in a processing facility, sufficient light makes all the difference in spotting what you need to find. The interiors of vessels and pipelines are typically far too dark to allow operators to observe important stages of their process readily through a sight glass. Flashlights usually don’t cast enough light and often produce glare, complicating the inspection process. Luminaires mounted onto sight glasses offer a more effective solution. Many processes take place in hazardous environments where explosive conditions may be present. For these applications, explosion proof lighting combines safe interior illumination and glare-free viewing.

There is a wide variety of explosion-proof sight glass lights to choose from. When choosing a light for a specific sight glass application, consider factors like type of technology, size, weight, voltage, wattage, materials of construction, mounting configuration, and light pattern. Energy consumption, location requirements, heat output, ambient conditions, and vibration must also be taken into account.

The “Understanding and Specifying Sight Glass Lighting” handbook addresses these considerations to help specifiers choose the most appropriate lighting solution for the application. Download your free copy today: http://www.sightglassblog.com/blog/03.html.

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