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Sight glass Luminaire ESL 51-LED, Stainless Steel

For general use with hinged bracket, flange adapter or for special sterile version

sight glass luminaire ESL 51-LED-HK with wiper unit SW I
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.
  • 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.
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.

Operating temperatures
  • Maximum admissible ambient temperature
    at the cable gland: 50°C
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)

   

Advantages

  • Compact design, powerful light output:
    Glare-free illumination; fits circular sight glass fittings to DIN 28120 / DIN 28121 or similar as well as screwed sight glass fittings in compliance with DIN 11851.
  • Ideal combination of flush design and smooth surface:
    This sight glass luminaire is designed for mounting on
    sight glass fittings in universal applications. It is practical either in
    combined sight and light ports (single-flange version)
    or with separate ports (two-flange version).
    Integrated fastening clamp enables attachment to wiper unit SW I.

    Materials

    • Body and head of luminaire:
      Stainless steel 1.4404
    • Fastening elements: Stainless steel
    • Connecting cable: 3 m (3 x 0.5 mm²) factory-fitted (other lengths on request)
      Protection
      • dust-tight and water jet-proof,
        IP 65 acc. to EN 60 529 / DIN VDE 0470 part 1

      Technical data

      • Sight glass 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

      • AC/DC
        Operating voltage:
        24 V
        Output:
        2.5 W
       

      Type

      Voltage/wattage

      Pushbutton

      Fastening element

      ESL 51-LED-HK

      24 V AC/DC – 2.5 W

      without

      Clamp attachment

      ESL 51-LED-HK

      24 V AC/DC – 2.5 W

      with

      Clamp attachment

      ESL 51-LED-KS

      24 V AC/DC – 2.5 W

      without

      Hinged bracket

      ESL 51-LED-KS

      24 V AC/DC – 2.5 W

      with

      Hinged bracket

      ESL 51-LED-B

      24 V AC/DC – 2.5 W

      without

      Flange adapter

      ESL 51-LED-B

      24 V AC/DC – 2.5 W

      with

      Flange adapter