Lumistar SLM-LED luminaire mounted on screw-type sight glass (DN80)
Installing Lumistar SLM-LED luminaire into DIN 11851 sight glass

Lumistar SLM-LED Luminaire — Sight-Glass LED Light

Lumistar SLM-LED luminaire — compact die-cast aluminium sight-glass LED light for DIN11851 screw fittings. IP65, 12–24V/24V AC/DC, 215–585 lm. Download datasheet.

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Description

The Lumistar SLM-LED luminaire is a compact, die-cast aluminium LED light engineered for screw-type sight glass fittings (DIN 11851). It delivers process-safe illumination with low heat, simple mechanical mounting and IP65 protection. Key specs and installation steps below.

Quick benefits

  • DIN 11851 ready: designed for screw-type sight glass ports (DN65–DN125).
  • Low-heat LED: SLM65 uses 2.5 W (12–24 V DC) at ~215 lm; SLM80–125 uses 5.5 W (24 V AC/DC) at ~585 lm — ideal for food and pharma lines.
  • Plant-grade protection: IP65 dust & water-jet when fitted correctly.
  • Simple installation: slip nut mounting; factory cable and optional push-button variants.

Technical specifications

Lumistar SLM-LED luminaire — Key specifications
Parameter Value / Notes
Product Lumistar SLM-LED luminaire (sizes 65, 80, 100, 125)
Compatibility Screw-type sight glass fittings to DIN 11851 (or similar). DN: 65 / 80 / 100 / 125.
Voltage & Power SLM65: 12–24 V DC — 2.5 W; SLM80–125: 24 V AC/DC — 5.5 W.
Luminous flux SLM65 ≈ 215 lm (5000 K); SLM80–125 ≈ 585 lm (6500 K).
Beam angle SLM65: 26° / 33°; SLM80–125: 18° or 25°.
Protection IP65 per EN 60529 when fitted correctly. Max ambient at cable gland: 40°C.
Materials Die-cast aluminium alloy, painted RAL 9007. (Stainless steel version: ME-LED series). Weight ≈ 0.32–0.92 kg depending on size.
Cable Factory-fitted cable; diameter for gland: 3.5–7 mm. Lapptherm or equivalent recommended. Other lengths on request.

Download SLM-LED datasheet (PDF)
Request quote / CAD

Installation summary (short)

  1. Remove the slotted cover nut from the sight glass unit.
  2. Pass the nut over the luminaire body and position the luminaire on the weld nozzle. Ensure the glass disc is correctly seated.
  3. Tighten the slotted nut; only then perform the electrical connection.
  4. Observe polarity on DC variants (brown = +, blue = −). Use the correct cable diameter for the gland.

Typical applications

  • Food & beverage (breweries, dairies), pharmaceutical processing
  • Laboratory mixers, filters, small tanks and pipelines
  • Any non-explosive plant requiring hygienic, low-heat sight-glass lighting

FAQ

Q: Which SLM-LED fits DN80 sight glass?
A: Use SLM-LED 80. Slotted nut opening dimension per datasheet: 94 mm for size 80.
Q: Can I order a version with a push button?
A: Yes — part numbers exist for with/without push button. See the product ordering table in the datasheet.

© Lumistar

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