What are the specifications of the USL03 LED?
A practical, publication-ready guide to the USL03 LED sight-glass luminaire: technical specs, mounting and electrical choices, installation & maintenance tips, and a short procurement checklist. Includes recommendations for spare parts and how Lumiglas can help with supply and on-site support.
Quick summary
What the USL03 LED is: a compact, low-power LED luminaire intended for sight-glass illumination and close-range inspection inside vessels, tanks and piping. It is designed to fit many sight ports and to provide focused, glare-free illumination for operators and inspection cameras.
Key specifications
| Item | Typical USL03 LED value / note |
|---|---|
| Nominal power | 2–5 W |
| Luminous flux | ≈ 180 lm |
| Color temperature | ≈ 4000 K (cool white) |
| Beam angle | 36°— illuminates through sight ports without glare |
| Protection class | IP65 (dust-tight, water-jet proof) — suitable for washdown & food-processing environments |
| Mounting compatibility | Fits common sight-glass fittings (DIN 28120 / DIN 28121 / DIN 11851) and single- or two-flange arrangements |
| Voltage / socket options | LED modules in 12 V and 24 V variants (GU4 style common); transformers or 24 V supplies typically used |
| Housing / materials | Stainless-steel housing with sealed optics / cover glass — compact and robust |
| Use environment | Non-explosive process vessels (Non-Ex). Recommended for hygienic and food processing applications. For Ex versions, consult certified datasheet. |
| Note: values are typical examples — check the exact model datasheet for certified Ex variants, part numbers and precise limits. | |
Why these specifications matter
- Low power keeps heat transfer into the process minimal while delivering usable illumination.
- Color temperature near daylight improves contrast and helps operators detect color changes in liquids.
- Narrow, focused beams reduce stray glare and ensure light passes through a limited viewing area.
- Protection rating must match your cleaning procedure: IP65 is common.
Mounting & mechanical notes
The USL03 LED is compact by design so it fits small sight ports and combined sight-and-light flange arrangements. Before ordering confirm:
- Flange type and bolt circle (measure the existing port or request a dimensional drawing).
- Bracket or hinge options (some versions have adjustable tilt).
- Cover glass and gasket types — avoid adapting the housing without checking sealing details.
Electrical & control options
Common electrical considerations:
- Supply voltage: 12 V or 24 V variants exist; choose the correct transformer or DC supply.
- Replaceable lamp modules: many designs use small plug-in LED modules for easy field replacement — keep spares.
- Control: simple on/off switching is typical; for integration with control systems plan wiring for a local switch or remote control input.
Selection checklist
- Exact part number / variant (power, voltage, beam angle).
- Mounting flange compatibility (bolt circle, flange type).
- Protection rating required for your clean-down.
- Luminous flux & color temperature sufficient for your inspection task.
- Electrical supply type and spare module availability.
- Manufacturer datasheet and pre-shipment dimensional drawing for critical installs.
Installation & maintenance tips
- Mounting: ensure seals and cover glass are clean and undamaged before commissioning.
- Wiring: route cable through the gland provided and protect against mechanical strain; respect polarity and transformer requirements.
- Cleaning: use approved cleaners; even with IP65 avoid aggressive solvents on seals and optics.
- Spare parts: keep a replacement LED module and gasket onsite to reduce downtime.
Common use cases
- Food & beverage: compact size and hygienic housings make the USL03 suitable for inspection ports in non-explosive zones.
- Pilot plants & labs: low heat and focused illumination aid visual checks without affecting small-volume processes.
- Retrofit lighting: adds inspection light to existing sight ports where space is limited.
Procurement & QA — quick RFQ checklist
Please provide: - Exact USL03 LED part number or datasheet PDF - Supply voltage (12 V / 24 V) and lamp power - Flange type, bolt circle or mounting drawing - Required IP rating and clean-down details - Spare lamp module / gasket part numbers - Request pre-shipment photos for critical installs
Why consider Lumiglas for USL03 LED supply & support
Lumiglas can help you source the correct USL03 LED variant, verify flange compatibility, and provide pre-shipment photos or dimensional drawings for critical installations. We also supply replacement lamp modules, gaskets and offer installation guidance to minimize downtime.
Email lumistar@188.com or upload drawings/photos via our technical request page.
