Lumiglas® Luminaires

Luminaires illuminate process vessel interiors in pharmaceutical, food processing, and chemical plants.

Choose from standard Luminaires (Non-Ex) and explosion-proof Luminaires (Ex) housings as well as halogen or LED designs.

Some applications require safe, high-intensity illumination for sight glasses, ports, or general applications in hazardous (classified) locations.

Lumiglas luminaires are available with aluminum or stainless steel construction and, depending on the size and wattage, can be equipped with momentary push button switches for safety and longevity. Remote or pneumatic timers and pushbutton switches are also available as Lumiglas light accessories. A new series of  Lumiglas LED Luminaires is now available.

In short, the luminaire is the entire device and the lamp is the specific replaceable component that produces light.

“A lamp is a light source that is placed in a luminaire!”

light fixture (US English), light fitting (UK English), or luminaire is an electrical device used to create artificial light by use of an electric lamp. All light fixtures have a fixture body and a light socket to hold the lamp and allow for its replacement.

Sight Glass Lights

There are many considerations for selecting the optimum light to illuminate your process vessel. This online guide walks you through the steps.

Dedicated or Separate Light Port

Often process vessels have two sight glass windows: one port for viewing and a separate port for the light. The light is typically mounted directly over the light port. To save cost or space, some vessels combine light and sight at one window. The light is typically mounted with a bracket, although sight glasses are available with integrated lights (combo style). 

LED or Halogen

Traditional halogen lights use trusted incandescent light bulbs. LED lights offer brighter light, lower energy consumption, and longer life (lower maintenance costs.) Halogen light brightness is selected by wattage: 5 to 100 Watts, with 50 Watts typical. LED light brightness is selected by lumens: 1000 to 3000 lumens.

Explosion Proof or Non-Explosion Proof

Some industrial environments require explosion proof lights (ex lights) that are sealed so they cannot introduce a spark into the atmosphere. The widest selection of ex lights are halogen style, although explosion proof LED lights are also available.

Stainless Steel or Aluminum Housing

Virtually all sight glass lights use stainless steel housings. A few ex light models are available with aluminum housing, lowering their cost while removing heat more efficiently.

Available Power Supply

Most lights are available in a range of voltage options. Make sure that the model you select will work with the power you have available: 120 VAC, 24 VDC/VAC, 230 VAC, 12 VDC/VAC.
 
When deciding upon a proper luminaire for your application, be sure to consider all of the properties of the light. The size, weight, voltage, wattage, materials of construction, mounting configuration, and light pattern (Lux diagram) are all very important factors you should be aware of.

Lumistar Luminaire ESL 55-LED-Ex, stainless steel

Luminaires (Ex)

Product Picture: Lumistar Luminaire ESL 55-LED-Ex, stainless steel

ex II 2G Ex d IIC T6 Gb
ex II 2D Ex tb IIIC T80° Db

Suitable for Explosion hazardous areas

This Ex-type sight glass luminaire is designed for universal applications and is ideal for use in combined sight and light ports (single-flange version) or with two separate ports (2-flange version).

For illuminating visual flow indicators, pipelines, laboratory mixers, bio-reactors as well as the interior of tanks, hoppers, silos, agitators and other, normally closed, vessels and reactors in potentially explosive environments.  Gas: Zones 1 and 2, Dust: Zones 21 and 22.

 The special advantages of Lumiglas LED technology:

  • vibration-proof
  • long service life and operational reliability
  • continuous LED operation up to around 50,000 hours
  • optimal for fittings that are difficult to access
  • no heat radiation in the light aperture (cold light)
  • no unwanted additional heat in chemical and/or biological processes
  •  extremely high-contrast illumination

Compact design, powerful light output:

Glare-free illumination; suitable for circular sight glass fittings to DIN 28120/DIN 28121 or similar, for screw-type sight glass fittings in compliance with DIN 11851 and for sight glass fittings on flow indicators.

Ideal for applications in sterile areas

Protection class: IP 65 and IP 67 acc. to DIN EN 60529

Temperature Class: to T6
Ambient temperature: up to 40°C
Suits circular sight glass fittings to DIN 28120/28121 or similar from size DN 40 and screwed sight glass fittings DIN 11851 from DN 65

Operating Voltage 24 V, 120 V-230 V Power 11 W
Secured by hinged bracket or adapter flange
modified by an inside mounting flange specially for Aseptik Technology

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Lumistar Luminaire ASL 57LED-Ex, aluminium

Luminaires (Ex)

Product Picture: Lumistar Luminaire ASL 57LED-Ex, aluminium

ex II 2G Ex d(e) IIC T6 Gb
ex II 2D Ex tb IIIC T80°C Db

Suitable for Explosion hazardous areas

This Ex-type sight glass luminaire is designed for universal applications and is ideal for use in combined sight and light ports (single-flange version) or with two separate ports (2-flange version).

For illuminating visual flow indicators, pipelines, laboratory mixers, bio-reactors as well as the interior of tanks, hoppers, silos, agitators and other, normally closed, vessels and reactors in potentially explosive environments.

The specific advantages of Lumiglas LED technology:

  • vibration-resistant
  • long service life and operational reliability
  • LED functions up to around 50,000 hours in continuous operations
  • optimal for fittings that are difficult to access
  • no heat radiation in the light aperture (cold light)
  • no unwanted additional heat in chemical and/or biological processes
  • extremely high-contrast illumination

Compact design, powerful light output:

Glare-free illumination; suitable for circular sight glass fittings to DIN 28120/DIN 28121 or similar, for screw-type sight glass fittings in compliance with DIN 11851, from size DN 40 and for sight glass fittings on flow indicators from DN 65 .

Protection class: IP 65

Temperature Class: to T6
Ambient temperature: up to 40°C

High operating time by Hi-Power LED’s

Voltage type: AC/DC

Operating Voltage 24 V, 120 V-230 V
Power 11 W

Secured by hinged bracket or adapter flange

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Lumistar Ex Light Guide Luminaire Lumiflex Type USL 07 ALF-Ex, aluminium

Luminaires (Ex)

Product Picture: Lumistar Ex Light Guide Luminaire Lumiflex Type USL 07 ALF-Ex, aluminium

ex II 2G Ex de IIC T6/T4 Gb
ex II 2D Ex tb IIIC T80°/130°C Db

For use in Ex-hazardous areas

The Lumiglas® Series USL 07-Ex is a small, high intensity light that provides versatile illumination of process vessel interiors in locations where explosion-proof lighting is required.

For illuminating individual processes and/or the interior of reactors,  containers, apparatuses, etc. in potentially explosive environments in Zones 1 and 2 as well as Zones 21 and 22.

For mounting on sight glass fittings; particularly for the selective illumination of processes on machines and reactors with limited space, especially in potentially explosive operating areas.

This Lumiglas luminaire has been specifically developed for light guide applications:

– Economical power consumption
– Low maintenance: lamp service life of up to 6,000 hours
– Flexible light guide made of stainless steel
– Easy to clean

Protection: IP 65 and IP 67 acc. to DIN EN 60 529

Temperature class: up to T6
Ambient temperature: up to 60°C
for the localised illumination of process operations at machines and internals of reactors; Specially developed for Light guide duties
Power supply see data sheet

Please note that the halogen bulb 230 V – 75 Watt is no longer available.

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