eraspec oil is a portable, standalone infrared analyzer that fully complies with ASTM, DIN, and JOAP standards for high-speed lubricant oil analysis and condition monitoring. Direct on-site laboratory-quality results are provided by its patented interferometer design. eraspec oil calculates properties like TAN, TBN, and aniline point in a matter of seconds, as well as contaminants, degradation products, and additive depletion.
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Image Credit: eralytics GmbH
Standards
ASTM D7412, ASTM D7414, ASTM D7415, ASTM D7418, ASTM D7624, ASTM E2412, DIN 51452, DIN 51453, JOAP
Correlations
ASTM D664, ASTM D2270, ASTM D2896
Lubricant Analysis with IR Spectroscopy
Image Credit: eralytics GmbH
Over the course of their lifetime, lubricant oils undergo a variety of chemical changes. This begins with small adjustments like dilution of the fuel or absorption of soot (ASTM E2412) from combustion.
Various chemical reactions with combustion products result in oxidation (ASTM D7414), nitration (ASTM D7624), or sulfation (ASTM D7415) of the lubricant, collectively referred to as degradation products. Many different additives are added to modern lubricants to enable cycle times. Throughout operation, these additives are depleted.
IR spectroscopy can easily monitor all of them.
Direct Trending and Spectral Subtraction
Image Credit: eralytics GmbH
Image Credit: eralytics GmbH
There are two ways to conduct an analysis of used oil using eraspec oil. "Direct Trending" uses the recorded absorbance to compute the lubricant properties directly. When using "Spectral Subtraction," the measured in-service oil is subtracted from the fresh oil, which is used (and stored) as a reference prior to the measurement.
Since "Spectral Subtraction" only analyzes changes to the oil during operation, it typically yields better results. For example, the percentage of remaining antioxidants can be determined by knowing the fresh oil's spectrum. Using databases of used oil spectra with known values, chemometrical models compute complex parameters like TAN and TBN.
Expandable Databases
Image Credit: eralytics GmbH
eraspec oil has various databases for calculating oil properties because different engines consume the oil in different ways. The calculated properties will return inaccurate results if the incorrect database is used. However, by selecting the right database, it is possible to make highly accurate predictions for a number of parameters.
The results of the oil analysis can be further enhanced by adding new, customized libraries to the already-included ones. Through the use of customized libraries, eraspec oil can learn entirely new parameters that are not covered by the factory libraries.
On-screen Trending Graphs
Image Credit: eralytics GmbH
The measurement results of the used oil analysis can be plotted directly on the large color touchscreen with eraspec oil. This makes it possible to monitor how the parameters of interest change over time. For instance, eraspec oil can plot the operating range of a gas turbine or the driven distance of an engine.
The instrument is pre-configured with all pertinent data, including trending ID, fresh oil spectrum, and required libraries. A measurement is performed after choosing the trending ID, and the trending graphs are then shown immediately. An abrupt increase in oxidation or a significant decrease in base reserve, for instance, can be immediately observed on the spot.
Lab-Grade Performance
Image Credit: eralytics GmbH
Image Credit: eralytics GmbH
Image Credit: eralytics GmbH
The patented robust and lightweight FTIR spectrometer design from eralytics enables measurements that yield results previously only possible with laboratory systems. eraspec oil's lightweight instrument design makes it simple to transport on-site. eraspec oil can also be run on a car battery for operations in remote areas. Samples no longer need to be sent in for analysis.
eraspec oil allows users to take the laboratory oil analysis right to the location where the results are required.
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Automatic Reference Measurement
Image Credit: eralytics GmbH
Two measurements are always required in infrared spectroscopy: a sample measurement and a reference measurement of the background. Since an empty cell measurement is unfavorable due to optical interferences, the reference measurement is frequently carried out by filling the measurement cell with a solvent.
eraspec oil automates the background measurement procedure with a unique reference cell. eraspec oil is always prepared for the subsequent sample measurement when required because the instrument can carry out this measurement automatically whenever a new reference is required.
Option: 10-Position Autosampler for High Sample Throughput
Image Credit: eralytics GmbH
The 10-position autosampler from eralytics is an add-on for the eraspec oil infrared analyzer. The instrument can easily connect up to 10 samples at once because the 10-position autosampler is directly attached to it. It is the ideal way to increase efficiency and sample throughput. Even with the 10-position autosampler attached, all instruments remain portable.
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Parameters Covered by eraspec oil
Degradation. Source: eralytics GmbH
| Degradation |
Standard |
Unit |
| Oxidation |
ASTM E2412, D7414, JOAP, DIN 51453 |
A/cm |
| Nitration |
ASTM E2412, D7624, JOAP, DIN 51453 |
A/cm |
| Sulfation |
ASTM E2412, D7415, JOAP |
A/cm |
Properties. Source: eralytics GmbH
| Properties1 |
Standard |
Unit |
| TAN* |
ASTM D664 |
mg KOH g-1 |
| TBN* |
ASTM D2896, D4739 |
mg KOH g-1 |
*requires a customized library
Additives. Source: eralytics GmbH
| Additives2 |
Standard |
Unit2, 3 |
| ZDDP |
ASTM E2412, D7412, JOAP |
A/cm, %, wt% |
| Phenolic Antioxidants |
ASTM D2668 |
%, wt% |
| Aminic Antioxidants |
|
%, wt% |
2 … Additive depletion in % remaining additive are available only for spectral subtraction measurements.
3 … wt% values are determined by an eralytics calibration
Contaminants. Source: eralytics GmbH
| Contaminants |
Standard |
Unit3 |
| Soot |
ASTM E2412, JOAP, DIN 51452 |
A/cm, wt% |
| Water |
ASTM E2412, JOAP |
A/cm, wt% |
| Ethylene Glycol (Antifreeze) |
ASTM E2412, JOAP |
A/cm, wt% |
| Diesel Fuel |
ASTM E2412, JOAP |
A/cm, wt% |
| Gasoline |
ASTM E2412, JOAP |
A/cm, wt% |
| FAME |
|
wt% |
| Polyolester |
|
wt% |
| Phosphate Ester |
|
wt% |
3 … wt% values are determined by an eralytics calibration
eraspec oil Feature Video
ERASPEC OIL – The latest trend in Oil Condition Monitoring
Video Credit: eralytics GmbH
- For the lowest LoD and a wider range of oil properties and parameters, use the "Spectral Subtracting" method.
- Rigid FTIR and laser/temperature design patents for maximum accuracy
- Evaluation of data in accordance with current international standards
- When fresh oil cannot be used for lubricant monitoring, the "Direct Trending" method can be used
- Simple, expandable libraries to customize the reference matrix for unique uses
eraspec oil Operation Video
ERASPEC OIL Operation Video
Video Credit: eralytics GmbH
An overview of eraspec oil's typical operation, including installation, measurement, and some extended measuring options, can be found in this video.
Technical Specifications
Source: eralytics GmbH
| |
|
| Available Test Methods |
ASTM E2412, ASTM D7412, ASTM D7414, ASTM D7415, ASTM D7418, ASTM D7624, ASTM D2668
JOAP, DIN 51452, DIN 51453 |
| Correlation to… |
ASTM D664, ASTM D2270, ASTM D2896, and ASTM D4739 |
| Spectrometer Type |
Patented mid-FTIR spectrometer
Laser and temperature controlled design |
| Measurement Cell |
100 µm path length
Optimized dual position cell design for automated reference measurement without solvent |
| Calibration |
Factory calibrated with a matrix of international lubricants
eralytics´calibrations for soot, water, glycol,… |
| Spectral Libraries |
Easy expandable libraries to adjust measurements to target applications and
user-defined parameters |
| Measurement Principles |
Direct trending: calculation of results without the need to record a fresh opil spectrum
Spectral subtraction: fresh oil used as reference for highest performance and lowest LODs |
| Measuring Time |
60 – 120 seconds depending on the viscosity of the sample;
Warm-up time: 30 seconds after booting the instrument |
| Sample Introduction |
Directly from the sample container by an integrated pump |
| Sample Viscosity |
0 – 2 000 cSt at 20 °C |
| Option: Diesel fuel module |
Typical parameters include cetane number/index, cetane improver, evaporation and
distillation points, aromatics, and FAME/vegetable oil |
| Sample Volume |
10 mL |
| Cleaning |
Automatic rinsing with next sample or solvent
Integrated filter to prevent blocking of measurement cell |
| Display |
Industry proven 8.4″ color touchscreen |
| Languages |
English, German, French, Spanish, Russian, Chinese
Additional langages available upon request |
| Interfaces |
Built-in PC with Ethernet, USB and RS232 interfaces
Wifi via external USB dongle
Direct LIMS connectivity via LAN, output to printer or PC and export as CSV or PDF
Optional input by external keyboard, mouse, and barcode scanner |
| Remote Control |
Remote service capability via Ethernet interface |
| PC Software |
erasoft RCS – remote control Windows® software for multi-instrument remote control,
convenient data transfer, viewing spectra and result analysis |
| Result Database |
Approx. 3000 detailed test reports and spectra stored in the internal memory |
| Alarm Tracking |
All alarm messages are stored in the database together with the results |
| Auto Sampler |
Optional 10-position auto-sampler – directly attached |
| Operating Conditions |
Temperature range 5 °C to 45 °C
Humidity up to 90% RH, non-condensing |
| Power Requirements |
Auto switching 85-264 V AC, 47-63 Hz, max. 150 W (multi-voltage power supply)
Field application: 12 V DC (vehicle battery) adapter available |
| Dimensions & Weight |
(W x D x H) = 29.1 x 32.9 x 34.8 cm (11.5 x 12.9 x 13.7 in) / 9.7 kg (21.4 lb) |