LAR 501-40-000159 UV Emitter Low Pressure 15W Ozone Free Tubular
Overview
The LAR 501-40-000159 UV Emitter Low Pressure 15W Ozone Free Tubular is the primary photometric oxidation source utilized within advanced TOC analyzers manufactured by LAR Process Analysers. This precision-engineered low-pressure ultraviolet lamp is responsible for generating the specific UV wavelengths required to break down complex organic carbon structures in aqueous samples. Designed as a direct-replacement OEM consumable, this 15-watt tubular emitter guarantees that instruments such as the QuickTOCuv perform at peak analytical efficiency, providing rapid, drift-free measurements of Total Organic Carbon (TOC) and Non-Purgeable Organic Carbon (NPOC).
Seven Star LLC is a specialized technical supplier, commercial vendor, and professional B2B procurement consultant operating across the Sultanate of Oman, Muscat, and the broader GCC. We specialize in supplying mission-critical analytical instrumentation parts like the LAR 501-40-000159 to heavy industries, ensuring that petrochemical complexes, natural gas processors, and municipal water treatment facilities have uninterrupted access to the highest-quality consumable components. By sourcing through Seven Star LLC, plant operators can minimize analytical downtime and ensure their continuous monitoring systems meet strict environmental and process control regulations.
Measurement Principle: UV-Persulfate Oxidation
At the heart of the LAR QuickTOCuv analyzer lies the UV-persulfate oxidation method, a technique highly favored for its exceptional sensitivity and reliability in monitoring low-level carbon concentrations in solid-free water. When an aqueous sample enters the analytical reactor, a chemical oxidizing agent (typically sodium persulfate) is added. However, the chemical alone is not sufficient to rapidly and completely oxidize all organic matter. This is where the LAR 501-40-000159 UV Emitter becomes critical.
The UV emitter emits high-intensity ultraviolet radiation, primarily at the highly energetic 254 nm wavelength. This targeted UV light serves a dual purpose: it directly breaks carbon-carbon bonds within the organic molecules (photolysis) and simultaneously catalyzes the persulfate ions to form highly reactive hydroxyl radicals. These aggressive free radicals rapidly attack and completely oxidize the remaining organic compounds, converting them entirely into carbon dioxide (CO<sub>2</sub>). The CO<sub>2</sub> is then stripped from the liquid phase and measured by the NDIR detector. Without the precise spectral output of the LAR 501-40-000159, this complete oxidation would not occur, leading to dangerously inaccurate TOC readings.
Engineering Design of the LAR 501-40-000159
The engineering of the LAR 501-40-000159 is optimized to maximize both UV intensity and operational lifespan while maintaining a stable thermal profile within the reactor. Constructed from ultra-high-purity quartz glass, the tubular envelope offers maximum transmissivity for UV light, ensuring that the maximum possible radiant energy is transferred into the sample fluid. Unlike standard UV lamps, this specific emitter is designated as “Ozone Free,” meaning the quartz envelope is doped to block the shorter 185 nm wavelengths that generate ozone from atmospheric oxygen. This protects the analyzer’s internal components from ozone-induced degradation and ensures a safer operating environment.
The low-pressure architecture of the lamp operates efficiently at 15 Watts, providing an ideal balance between radiant power and thermal management. Excessive heat can cause localized boiling or outgassing in the reactor, disrupting the fluid dynamics. The 15W rating ensures cold, efficient operation. Furthermore, the electrical contacts are heavily robust to withstand continuous 24/7 operation without experiencing voltage arcing or premature filament failure, making it highly reliable for the demanding operational requirements found in the Sohar and Salalah industrial zones.
Key Features
The LAR 501-40-000159 UV Emitter provides several distinct advantages for continuous water quality monitoring systems:
- High-intensity 254 nm output optimized for the rapid photolytic and catalytic oxidation of organic carbon.
- Ozone-free quartz glass construction, protecting internal analyzer hardware from highly corrosive ozone gas.
- Energy-efficient 15-Watt low-pressure design, maintaining a stable thermal environment within the UV reactor.
- Direct OEM replacement compatibility for LAR Process Analysers, guaranteeing exact physical fitment and electrical matching.
- Extended operational lifespan engineered for continuous 24/7 industrial monitoring applications.
- Stable spectral output over time, minimizing analytical drift and reducing the frequency of multi-point calibrations.
- High-purity quartz envelope ensuring maximum UV transmissivity into the sample matrix.
- Ruggedized electrical pins ensuring secure, vibration-resistant connections within the analyzer chassis.
Industrial Applications
In the highly regulated process industries of Oman and the GCC, the accuracy of water quality analyzers is non-negotiable. The LAR 501-40-000159 is widely deployed in petrochemical refineries and natural gas processing plants to monitor condensate return lines. Even trace amounts of organic compounds entering high-pressure steam boilers can cause devastating scaling, corrosion, and catastrophic failure. By ensuring complete UV oxidation, this emitter guarantees that the TOC analyzer catches any contaminant spikes immediately.
Furthermore, semiconductor manufacturing facilities, pharmaceutical plants, and large-scale desalination operations across Muscat and the wider region rely on these specific UV emitters to validate the purity of their ultrapure water (UPW) and reverse osmosis (RO) permeate. Supplied reliably by Seven Star LLC, the LAR 501-40-000159 UV Emitter is an indispensable consumable that enables industrial maintenance teams to execute scheduled preventative maintenance with absolute confidence, ensuring continuous compliance with rigorous international water quality standards.
Technical Specifications
The following table details the core technical parameters of the LAR 501-40-000159 UV Emitter:
| Parameter | Specification |
|---|---|
| Model / Part Number | 501-40-000159 |
| Component Type | Ultraviolet (UV) Emitter Lamp |
| Brand | LAR Process Analysers (Process Insights) |
| Function | Photochemical oxidation in TOC analyzers |
| Power Output | 15 Watts |
| Design Type | Low Pressure, Tubular |
| Material | High-Purity Quartz Glass (Ozone Free) |
| Primary Wavelength | 254 nm |
| Application Method | UV-Persulfate Oxidation |
| Compatibility | LAR QuickTOCuv and compatible UV reactor systems |
| Country of Origin | Germany |
Request a Quote for LAR 501-40-000159 UV Emitter Low Pressure 15W Ozone Free Tubular
Ensure the flawless operation of your continuous water monitoring systems by sourcing genuine spare parts. To request pricing, verify current availability and lead time, or place an order for the LAR 501-40-000159 UV Emitter Low Pressure 15W, please contact the dedicated B2B procurement team at Seven Star LLC. As a specialized independent supplier for LAR Process Analysers in Oman and the GCC, we provide rapid commercial fulfillment, comprehensive technical support, and optimized logistics to keep your critical instrumentation running smoothly.
Other Models in the LAR Process Analysers TOC Spare Parts Range
Seven Star LLC supplies models from the LAR Process Analysers TOC Spare Parts range in Oman and the GCC. Compare the related models below and request a quote for the one that matches your application.
| Model | Category | |
|---|---|---|
| LAR 501-08-000045 Gas Drying Tube for Carrier TOCUV1A0 – Long | Liquid Analytical Accessories | View details |
| LAR 501-40-000159 UV Emitter Low Pressure 15W Ozone Free Tubular | Liquid Analytical Accessories | You are viewing this model |
| LAR 501-40-000215 Peristaltic Pump 5-Channel 24VAC 10RPM | Liquid Analytical Accessories | View details |
| LAR 501-40-000106 Glass Reactor for UV Method (Old P/N: 501-04-000021) | Liquid Analytical Accessories | View details |
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LAR analyzer spare parts listed here
The four listed items are parts for the UV persulfate oxidation analyzer type, the QuickTOCuv: a glass reactor for the UV method (501-40-000106, formerly 501-04-000021), a low-pressure 15 W ozone-free UV emitter (501-40-000159), a five-channel peristaltic pump (501-40-000215) and a gas drying tube for the carrier gas path (501-08-000045). All of them are wear or consumable parts replaced during routine upkeep.Ordering LAR parts: what we need
Send the LAR part number in the 501-xx-xxxxxx format, and the old number as well if your manual shows one. Add the analyzer type and serial number from the type plate, because the QuickTOCuv, QuickTOCultra and other models use different reactors, pumps and tubing. A photo of the old part and the manual's spare parts page speed up the check. We supply these parts to water, power and petrochemical sites across the GCC.Browse LAR Process Analysers products by category: Liquid Analytical Accessories.
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