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 USL 08-Ex; T4A, T3B, aluminium

Luminaires (Ex)

Product Picture: Lumistar Luminaire USL 08-Ex; T4A, T3B, aluminium

Suitable for Explosion hazardous areas

 

Lumistar Luminaire USL 08-Ex, UL-listed + T3B, T4A

 

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

For illuminating the interior of tanks, hoppers, silos, agitators and other, usually closed, vessels and reactors as well as visual flow indicators in potentially explosive environments with UL requirements. Suitable for use in food processing industries.

  • Protection: dust-proof and splash-proof, IP 65 acc. to EN 60 529/ DIN VDE 0470, Part 1
  • Ignition protection, explosion group:
    UL 844 listed for Class I Div. 1 and 2, Groups C and D
    UL 1571 for “wet conditions

Temperature Class: to T4A. Ambient temperature: up to 40°C
Ignition protection: Class 1, Div.1 & 2, Explosion Group: C & D

Suits circular sight glass fittings to DIN 28120/28121 or similar from size DN  50 and screwed sight glass fittings DIN 11851 from DN 100/125

Operating Voltage: 120 V
Power rating: up to 100 W

These sturdy, compact lights are now available in 35 W, 50 W or 100 W  versions.

Secured to sight glass flange by twin brackets fastened

UL-listed
(Ex) Div. I, Div. II

Downloads

 

Lumistar Luminaire ESL 25-Ex, stainless steel

Luminaires (Ex)

Product Picture: Lumistar Luminaire ESL 25-Ex, stainless steel

ex II 2G Ex d IIC T4/T6 Gb
ex II 2D Ex tb IIIC T130°/T80°C Db

Suitable for Explosion hazardous areas

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

For illuminating visual flow indicators, pipelines, laboratory mixers, bioreactors as well as the interior of pressure vessels, tanks, agitators and other – normally closed – processing vessels in potentially explosive environments. Gas: Zones 1 and 2; Dust: Zones 21 and 22.

UL approved for Class 1, Division 1 and 2, Groups C and D applications.

Particularly suitable for use in sterile environments

Temperature Class: to T6 (depending on power rating)

Ambient temperature: up to 60°C

Protection: IP 65 and IP 67 to DIN EN 60529

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 12 V, 24 V, 120 V, 230 V 

Voltage type: AC/DC, depending on lamp

Power, depending on voltage: up to 20 W

Secured by hinged bracket or adapter flange modified by an inside mounting flange specially for Aseptik Technology

Downloads

 

Lumistar Luminaire ESL 27-Ex, stainless steel

Luminaires (Ex)

Product Picture: Lumistar Luminaire ESL 27-Ex, stainless steel

ex II 2G Ex de IIC T3/T4 Gb
ex II 2G Ex tb IIIC T195°C T130°C T80°C Db

Suitable for Explosion hazardous areas

This Ex-type sight glass luminaire is designed for universal applications in potentially explosive environments. It is ideal for use in combined sight and light glass units, either as a single flange version or with two separate flanged ports.

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

Compact yet powerful:

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

Optimum screw-in lens design ensures maximum light efficiency and convenient access when replacing lamps.

Ideal for applications in sterile areas.

Protection: IP 65 and IP 67 to DIN EN 60529

Temperature Class: T4/50W; T6/20W
Ambient temperature: up to 40 C
Suits circular sight glass fittings to DIN 28120/28121 or similar from size DN 50 and screwed sight glass fittings DIN 11851 from DN 100

Operating Voltage 12 V, 24 V, 120 V, 230 V, 240 V

Power, depending on temperature class: up to 50 W

Secured by hinged bracket or adapter flange
modyfied by an inside mounting flange specially for Aseptik Technology

Downloads

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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