This sight glass luminaire is designed for universal applications and is ideal either in combined sight and light ports (single-flange version) or for separate ports (two-flange version).
For illuminating the interiors of vessels, tanks, agitators, silos and other, generally closed, containers and reactors and also in visual flow indicators in non-explosive environments.
Suitable for use in the food processing industry.
Compact design, powerful light output: Glare-free illumination; fits circular sight glass fittings to DIN 28120/DIN 28121 or similar, screw-type sight glass fittings in compliance with DIN 11851, as well as visual flow indicator fittings.
Generous light exit and optimised screwed lens aperture
Protection class: dust-tight and water jet-proof,
IP 65 in compliance with EN 60 529 / DIN VDE 0470, part 1
Operating conditions: Independent of vacuum/pressure in the vessel. Under no circumstances should a sight glass luminaire be used as a substitute for the cover flange or instead of the complete sight glass flange assembly or on its own to close a vessel port.
Maximum admissible ambient temperature: 50°C
Straightforward installation using special attachment, ensuring convenience of use: The luminaire is fixed to the cover flange by a hinged bracket in the case of circular sight glass fittings and visual flow indicators.
With screw-type sight glass fittings, the luminaire is fastened to the slotted nut.
Lumistar luminaire USL 05 LED fits the following nominal sizes:
a) Circular sight glass fitting acc. to DIN 28120: from DN 25
b) Circular sight glass fitting acc. to DIN 28121: from DN 40
c) Visual flow indicator: from DN 25
d) Screw-type sight glass fitting in compliance with DIN 11851:
– DN 65, DN 80 are mounted using a separate flange adapter
– DN 80 and larger are mounted using a hinged bracket
• Voltage type: AC/DC
• Operating voltage:
24 V AC/DC 7.5 W LED
230 V AC 5 W LED
Ideal combination of flush design and smooth surface:
This sight glass luminaire is designed for mounting on sight glass fittings in universal applications.
Applications in the chemical, pharmaceutical, biogas and food processing industries:
For illuminating the interior of vessels, tanks, agitators, silos and other generally closed containers and reactors and also in visual flow indicators in non-explosive environments.
It is practical either in combined sight and light ports (single-flange version) or with separate ports 2-). Integrated fastening clamp enables attachment to Lumiglas wiper unit SW I.
ESL 51-LED-HK: with bracket for SW I (wiper unit)
ESL 51-LED-KS: with hinged bracket for general use
ESL 51-LED-B: special sterile version for flange attachment for fitting over flanges, collars, etc.
Protection class: dust-tight and water jet-proof, IP 65 acc. to EN 60 529 / DIN VDE 0470 part 1
Lumistar ESL 51-LED luminaires fit the following nominal sizes:
a) Circular sight glass fittings acc. to DIN 28120: from DN 25
b) Circular sight glass fittings acc. to DIN 28121: from DN 40
c) Visual flow indicators: from DN 25
d) Screw-type sight glass fittings in compliance with DIN 11851: from DN 40
Voltage type: AC/DC
Operating voltage: 24 V
Output: 2.5 W
Transformers or AC/DC converters for on-site installation or for installing in a control cabinet are available on request.
(Transformer: 230 V AC – 24 V AC)
(AC/DC converter: 230 V AC – 24 V DC)
Lumistar Luminaires ASL 55-LED (aluminium) and ESL 55-LED (stainless steel)
Sight glass luminaire for universal applications; ideally suited for sight glass and light port combinations (single-flange version) and for separate configurations (double-flange version).
The optimum solution in the pharmaceutical and food processing industries, ideal for illuminating bioreactors, laboratory mixers and filters as well as the interiors of boilers, tanks, agitators, separators, pipes and other – usually sealed – vessels in operating environments that are not potentially explosive.
The specific advantages of Lumiglas LED technology:
- Insensitive to vibration
- Long service life and high operational reliability
- Continuous operation for LED up to about 50,000 hours
- The ideal solution wherever fittings are difficult to access
- No heat radiation in the light port (cold light)
- No additional heat which would be undesirable for chemical and/or biological processes
- Extreme high-contrast lighting
Compact yet powerful:
Dazzle-free illumination; suitable for use with circular sight glass fittings to DIN28120/DIN28121 or similar, with screw-type sight glass fittings in compliance with DIN 11851, and in sight flow indicators.
Type of protection: Dust-tight and waterjet-proof, IP 65 acc. to EN 60529/
DIN VDE 0470, Part 1
Convenient electrical link-up: The Lumistar luminaire is equipped with a factory-mounted screwed cable gland.
The Lumistar luminaire ASL-/ESL 55-LED is compatible with the following nominal diameters:
a) Circular sight glass fitting acc. to DIN 28120: DN 40
b) Circular sight glass fitting acc. to DIN 38121: DN 40
c) Sight glasses in flow indicators: DN 50
d) Screw-type sight glass fittings similar to DIN 11851:
– DN 50 is mounted by way of a separate flange attachment
– From DN 80 up, the unit is secured using the hinged bracket