RDE-OES Standard Elemental Analyzer

RDE-OES Standard Elemental Analyzer

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RDE-OES Standard Elemental Analyzer
  • RDE-OES Standard Elemental Analyzer
RDE-OES Standard Elemental Analyzer
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RDE-OES Standard Elemental Analyzer

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RDE-OES Standard Elemental Analyzer – QualiRDE™ 800

The QualiRDE™ 800 RDE-OES Standard Elemental Analyzer delivers rapid elemental screening for in-service oils and related industrial fluids. It is built for laboratories and maintenance teams that require fast identification of wear metals, contaminants, and additive elements without time-consuming sample preparation. Using rotating disc electrode optical emission spectrometry, the system provides multi-element results in under 30 seconds, supporting quicker decisions in maintenance planning and fluid condition assessment.

Designed for demanding analytical environments, this RDE-OES platform supports routine oil analysis across power generation, transportation, aerospace, defense, and heavy equipment maintenance sectors. It features a 500 mm focal length optical system, holographic diffraction grating, high-speed data acquisition, and user-friendly software that ensures consistent performance in busy laboratory workflows.

The QualiRDE™ 800 is a compact solution for fast detection of metallic wear debris, contamination, and additive chemistry in used lubricants, hydraulic fluids, and selected fuel samples. It is well suited for predictive maintenance programs, condition monitoring, incoming fluid verification, and troubleshooting applications where speed and multi-element detection are critical.

This system enables direct oil analysis without dilution, chemical reagents, or auxiliary gases. Its advanced optical design supports wide spectral coverage, while the integrated software manages calibration, data processing, statistical evaluation, and reporting. The result is a reliable RDE-OES solution for organizations focused on monitoring equipment health and tracking fluid degradation trends with efficiency and accuracy.

RDE-OES Standard Elemental Analyzer – QualiRDE™ 800 Applications

  • Used Lubricating Oil Analysis: The QualiRDE™ 800 is designed for elemental evaluation of in-service lubricating oils to identify abnormal wear, contamination, and additive depletion. It helps maintenance teams monitor equipment condition, recognize early wear trends, and support preventive and predictive maintenance strategies.

  • Hydraulic Fluid Monitoring: Hydraulic systems benefit from rapid detection of metallic particles and contaminants that may signal component wear or fluid breakdown. Routine RDE-OES analysis supports early identification of issues in pumps, valves, and hydraulic circuits, improving maintenance response time.

  • Fuel Contamination Screening: In applicable diesel and gas turbine fuel workflows, the system supports elemental screening for contamination aligned with ASTM D6728-type requirements. This helps detect corrosive elements and metallic impurities that can impact fuel quality and equipment reliability.

  • Aerospace, Defense, Power, and Transportation Programs: This analyzer is widely used across aerospace, defense, power generation, and transportation sectors. These industries rely on fluid analysis to assess the condition of engines, turbines, gear systems, and hydraulic components operating under continuous load.

  • High-Volume Maintenance Laboratories: With analysis times under 30 seconds and no sample preparation required, the system is well suited for laboratories handling large sample volumes. The fast workflow improves turnaround time and supports consistent trend analysis across extensive equipment fleets.

Standards

  • ASTM D6595 – Standard test method for determining wear metals and contaminants in used lubricating oils or used hydraulic fluids using rotating disc electrode atomic emission spectrometry. This method is widely applied for condition monitoring and wear trend analysis in in-service lubricants and hydraulic systems.

  • ASTM D6728 – Standard test method for detecting contaminants in gas turbine and diesel engine fuels using rotating disc electrode atomic emission spectrometry. It is used to identify elemental contamination that may affect fuel quality, combustion efficiency, and equipment reliability.

RDE-OES Standard Elemental Analyzer - QualiRDE™ 800 Key Features

RDE-OES Standard Elemental Analyzer

  • Rapid multi-element analysis: Delivers full elemental results in under 30 seconds, making it well suited for routine screening and high-throughput maintenance workflows.
  • Direct sample testing without pretreatment: Oil samples can be analyzed directly without dilution, solvents, reagent gases, or chemical additives, reducing handling steps and simplifying operation.
  • High-resolution optical design: Equipped with a holographic diffraction grating (2700 lines/mm) and a 500 mm focal length optical system to ensure strong spectral resolution and analytical clarity.
  • Low detection limits: Capable of detecting elements at sub-ppm levels, enabling trace-level monitoring for wear, contamination, and lubricant condition assessment.
  • Broad spectral coverage: Operates across an approximate 190–800 nm or 200–800 nm wavelength range (depending on configuration/source), enabling multi-element detection across a wide spectral band.
  • Fast digital acquisition and control: Uses microprocessor-controlled multi-channel integration, high-speed analog-to-digital conversion, and USB-based data transfer for efficient processing and system control.
  • User-friendly software environment: Includes intuitive graphical operation, method creation and editing, flexible output formats, automatic standardization, statistical tools, and out-of-range result flagging.
  • Expanded reporting functions: Supports reporting of individual and averaged excitation results (up to 100 excitations), along with standard deviation and relative standard deviation calculations.
  • Simple operation and maintenance: Designed for ease of use and straightforward maintenance, making it suitable for technicians with varying levels of training.
  • Stable continuous operation: Engineered for reliable long-duration use, supporting continuous laboratory workflows and high-demand testing environments.
  • Wear, contamination, and additive monitoring: Enables measurement of wear metals, contamination levels, and additive elements to support comprehensive fluid condition assessment and predictive maintenance programs.

Theory and Method

RDE-OES (rotating disc electrode optical emission spectrometry) is an analytical technique used to determine metallic elements in oils and fuels by exciting the sample and measuring the characteristic light emitted by each element. It is widely applied for rapid multi-element detection of wear metals, contaminants, and additive elements in in-service fluids.

During analysis, a rotating graphite disc introduces a thin film of the sample into the excitation zone. As the sample is energized, it emits light at specific wavelengths corresponding to individual elements. The spectrometer detects these wavelengths and converts them into concentration values, enabling fast screening with minimal sample preparation. This makes the method well suited for routine maintenance and condition monitoring applications.

The QualiRDE™ 8000 applies this measurement principle using a holographic grating-based optical system combined with microprocessor-controlled data acquisition. Its software supports calibration management, statistical evaluation, standardization routines, and result reporting functions. Together, these capabilities help ensure stable performance and consistent analytical results across repeated testing cycles.

RDE-OES Standard Elemental Analyzer - QualiRDE™ 800 Technical Specification

Parameter QualiRDE™ 800
Model QualiRDE™ 800
Analytical Method Rotating Disc Electrode Optical Emission Spectrometer (RDE-OES)
Optical System High-performance holographic diffraction grating
Grating Density 2700 lines/mm
Detector / Readout multi-channel acquisition architecture or a multi-block high-performance CCD detector system
Focal Length 500 mm
Spectral Range 200–800 nm
Detection Limit Less than 1 ppm
Analysis Time Less than 30 seconds per test
Sample Preparation None required for routine analysis
Reagents / Gases No auxiliary solvents, gases, or additional chemical reagents required
Data System Microprocessor-controlled multi-channel integration and data acquisition
A/D Converter High-speed 15-bit to 16-bit listing depending on source page
Microcontroller SP mixed-signal flash microcontroller, 100 MHz
Interface High-speed USB
Software Functions Method creation/editing, standardization, statistics, output options, result flagging, print/average reporting
Voltage 220 V ±10%, single phase, 50/60 Hz, 10 A, 1.5 kVA; 110 V available
Dimensions 810 × 500 × 675 mm
Weight 52 kg
Continuous Operation 24/7 stability and reliability

Element Detection Range

Element Detection Range Element Detection Range
Fe 0–1000 Ba 0–6000
Cr 0–1000 P 0–6000
Pb 0–1000 Zn 0–6000
Cu 0–1000 Mo 0–1000
Sn 0–1000 Ti 0–1000
Al 0–1000 V 0–1000
Ni 0–1000 Mn 0–1000
Ag 0–1000 Cd 0–1000
Si 0–1000 Sb 0–1000
B 0–1000 Li 0–1000
Mg 0–6000 Na 0–1000
Ca 0–6000 K 0–1000

Delivery time varies upon stock availability. Our standard dispatch and shipping times are generally within 1 week, however for some high demand items the delivery may be extended to 2-3 weeks. If you require these items urgently please contact us to check accurate stock availability and to organize faster shipping methods.

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Important Delivery Information

Delivery time varies upon stock availability. Our standard dispatch and shipping times are generally within 1 week, however for some high demand items the delivery may be extended to 2-3 weeks.

Need it urgently? Contact us here to check stock and organize faster shipping.

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Qualitest USA may accept return of purchased merchandise within North America for refund or credit under the following conditions -

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I. What legal provisions govern our data processing practices? How and from where (internal/external sources) is personal data acquired? What are the rights of the user (web site visitor/registered customer)? 

1. General
As a general principle, no personal details need to be provided when visiting our Internet site. Data made available to us by you is treated in strict confidence and in accordance with the provisions of the Federal Data Protection Act. With a few exceptions (see point 2 below), our web server only registers non-personal (anonymous) data concerning the use of our site. Specifically, the log files of our web server, as a general rule, only contain the user's IP address, the last page visited by the user, the browser used, date, time and the file requested. This anonymous data, however, does not permit conclusions to be drawn about the individual users, and merely serves to prepare statistics on the use of our Internet site for the purpose of its improvement. At the same time, great importance is placed on ensuring that usage data is not linked with personal data. 

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