Lumistar Ex Light Guide Luminaire Lumiflex Type USL 08 ALF-Ex, aluminium

Luminaires (Ex)

Product Picture: Lumistar Ex Light Guide Luminaire Lumiflex Type USL 08 ALF-Ex, aluminium


For use in Explosion hazardous areas
Temperature class: T4 (60°C) & T5 (40°C)
Ignition protection: Class 1, Div.1
Explosion Group: C & D

For mounting on sight glass fittings… or for localized illumination of process operations in reactors, vessels and pipelines and also where there is limited space, primarily in potentially hazardous Ex zones.

For the illumination of process operations and/or the internals of vessels and plant in in potentially explosive environments, where the space available is limited.

The unit is made up of a general-purpose sight glass luminaire that has been modified to provide a fibre optic system which is particularly suitable for use wherever processes in Class I, Divisions 1&2, Groups C&D need to be  illuminated.

The unit can be installed for combined light and sight purposes as well as with VISULEX Ex camera technology.

This Lumistar luminaire has been specifically developed for light guide applications and is characterised by its:

Extremely high light output at only 39 W
Low energy consumption
Servicing intervals: filament lamp life greater than 6,000 hours

The light source can also be mounted at a distance from a vibrating vessel to extend the bulb life.

Protection: Suitable for wet locations acc. to UL-1598 and CSA C22.2
No. 250.0-08, IP65/IP67 (similar to NEMA4+4x), Class I, Div 1 & 2, Groups C & D

For the localised illumination of process operations at machines and internals of reactors; Specially developed for Light guide duties Power supply see data sheet


Lumiglas Ex Motor Drive EMA I-Ex EEx d IIC T5 / Biogas Sight Glass with Light, Wiper and Camera System

Versatile, high-performance Ex-class motor drive with compact dimensions for numerous applications

  • Special advantages of the Lumiglas Ex-class motor drive:
    Especially in environments that require the remote  monitoring of processes in reactors (e. g. biogas plants), ex-type cameras are frequently mounted on sight glasses, enabling process engineers to observe what is going on in the vessel from a central control room, which is frequently located at some distance from the reactor itself.

This eliminates the need for physical presence at a reactor, frequently entailing safety-relevant situations made more difficult by adverse environmental conditions, e. g. bad weather.

In certain processes, problems can arise if there are deposits of the substance in the reactor on the sight glass screen, thus making it difficult or even impossible for the camera to view the process. This can be remedied by using one of the proven wipers from the Lumiglas range: SW I and SWII. These wipers are normally operated by hand when the observer wants to inspect the reactor.

In many cases, however, the remote observation of reactors, e. g. via Lumiglas camera technology, is mandatory, making it essential to install a motor-driven wiper that can be actuated remotely from the control room.

The Ex motor drive EMA I-Ex has been developed specifically for such applications.

Because remote observation is mainly carried out in potentially
explosive environments, an Ex-class motor drive is now available in addition to the Ex camera


  • The Ex-class motor drive is mainly intended for operating wipers on sight glasses and is suitable for short- or long-term operation.
  • Especially in environments that require the remote monitoring of processes in reactors
  • Compact overall size; high turning moment; excellent motor power; low energy consumption.
  • Approved for use in potentially explosive environments, Zones 1 and 2 as well as 21 and 22
  • Approved for use in ambient temperatures of between -20°C and +50°C
  • Type of protection: Terminal connection and motor enclosure IP68, motor shaft IP54

Small dimensions, great effectiveness:

The Ex-class motor drive is designed for both short-term and continuous  operations.

All development targets have been achieved:

  • Compact overall size; high turning moment; excellent motor
    power; low energy consumption.
  • The Ex motor drive is thus ideally suited for operating, for
    instance, Lumiglas screen wipers:
    a) SW I (the wiper blade axis passes through a hole in the
    sight glass) – for low pressure
    b) SW II (the wiper blade axis is operated from the side
    through a hole in the sight glass fitting by means of a
    flexible shaft) – for higher pressure

Combination with a spray facility is also possible.

Structure of compact unit:

  • The unit is made up of a DC electric motor with a flanged drive and special coupling by way of which (e. g.) the wiper axis of a screen wiper is turned. 

Biogas Sight Glass with Light, Wiper and Camera System

Biogas sight glass for digester tanks and methane digester tanks. Our light glass gasket creates a gas-tight seal by conforming to cement walls and ports used in digester tank construction. 

lumiglas biogas production packages