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| Our systems for gas permeability measurement for plastic and rubber samples have simplicity, excellent selectivity, high sensitivity and wide dynamic range. The measurable permeating components include water vapor, hydrogen-sulfide, methane, ethane, carbon-dioxide, BTEX (Benzene, Toluene, Ethyl Benzene and Xylene), ammonia etc. There are two basic forms of our systems; the first one, which is based on photoacoustic industrial gas detection, is optimal for measurements at normal pressure and temperatures up to 120 ° C. The second one, which is based on photothermal beam deflection method, can be used also at extreme pressures (up to 1000 bar) and also at high temperatures. An outstanding feature of our system is that due to the very high dynamic range of the measuring method, it is possible to fit numerically the early part of the permeation curve, which results in a considerable reduction of the measurement time |
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The oxidation stability of biodiesel can easily be determined with the 873 Biodiesel Rancimat from Metrohm, a modern and reliable instrument with a 3 years’ warranty. In addition to reliable hardware and easy operation, it offers all the comfort to be expected from a PC-controlled instrument.
The method: oxidation stability according to EN 14112
The determination of the oxidation stability according to EN 14112 is an accelerated oxidation test. The sample is held in a sealed reaction tube at a constant temperature of 110 °C while a continuous flow of air is passed through the sample. The fatty acid methyl esters (FAME) in the sample are oxidized to peroxides as the primarily oxidation products. After some time, the fatty acids are completely decomposed into the secondary oxidation products. In addition to volatile organic compounds, these are low-molecular organic acids, mainly formic and acetic acids. An air flow transports them to a measuring vessel containing distilled water as the absorption solution. |
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PetroOXY
Automatic Rapid-Oxidation-Stability Test of FAME
a new method to evaluate the storage stability of liquid fuels and offer the opportunity of an automatic instrument.
Both, the method and the instrument are designed in a way that they do not exceed the average test-time of other methods specified for releasing a fuel from any production facility or other storage.
Suitable for: Biodiesel, Biofuel, Diesel, Gasoline, Motor Fuel, Motor Gasoline |
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EE16 professional transmitters are the ideal solution for accurate measurement of relative humidity and temperature at a reasonable price in HVAC applications.The well proven E+E moisture sensor in combination with the new designed electronics guarantees excellent long term stability and resistance against chemical pollutants. EE16 transmitters are available as wall or duct mounted, with current or voltage output signals.
Technical data
Measuring range: 10-95% RH; 0...50 °C
Outputs: 0-10V or 4-20mA
Accuracy: +/-3% RH; +/-0.5 °C
Supply: 24V AC/DC
Transmitters of the EE21 series have been developed for high-precision measurement of relative humidity and temperature. EE21 transmitters are available for wall and duct mounting with or without the very useful
snap in-mounting kit, which allows a quick and easy exchange of the transmitter.
Outputs can be selected between voltage and current. An optional radiation shield providing a forced ventilation is recommended for use in outdoor applications.
Special protection coating for the sensing element permits the permanent use in very pollutedenvironments.
Technical data
Measuring range: 0...100% RH; -20...60 °C
Outputs: 0...1/5/10V or 4...20mA
Accuracy: +/-2% RH; +/-0.3 °C
Supply: 24V AC/DC
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The Protimeter product line offers handheld moisture meters and hygrometers for professionals. The primary markets for these products are in the building and construction, wood, agriculture and civil engineering sectors. Building surveyors and inspectors use Protimeter products to measure moisture levels in buildings and to diagnose the cause of moisture related problems. Farmers measure the moisture and temperature levels in harvested crops using our grain moisture meters and civil engineers use the Speedy(tm) moisture industrial testers for establishing the moisture level in soils.
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The S4000 Range of precision cooled mirror dewpointmeters offers the ultimate in accuracy, reliability and long term stability. Chosen as transfer standards by national laboratories world-wide, the S4000 range is renowned for its performance and reliability at a sensible price.
S4000 Integrale As the name suggests, instrument and sensor are integrated into a single bench mounting case available with a neat carry handle and weighing less than 10kg. Thus, making field applications such as critical measurements in power stations, on SF6 switchgear, or on process gases just as practical as the calibration of other hygrometers within a laboratory environment. Total measurement range %u201365 to 40oC dew point.
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Handheld thermo hygrometers of the HUMIPORT series set new standards because of the combination of the latest technology and design. HUMIPORT thermo- hygrometers offer very accurate measurement of relative humidity and temperature and also calculation of dewpoint temperature and absolute humidity.
Excellent readability of the very large and illuminated display, the simple thumbwheel operation and the very robust case also allow use in tough industrial environments.
3 models are available:
HUMIPORT 05: Compact handheld thermo / hygro- meter with fixed sensing probe
HUMIPORT 10: Handheld thermo / hygrometer with fixed sensing probe
HUMIPORT 20: Handheld thermo / hygrometer with flexible sensing probe
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Easidew Portable hygrometer has been designed to make in-field checks of the dew point in air and gases as simple and quick as possible. This totally self-contained instrument, weighing only 4 kg, is delivered ready to use. Simply connect your sample gas to the Quick Connect professional fittings, turn on the instrument and it will instantly trend the dew point of the applied sample.
The key to Easidew's performance is its sensor technology. Michell%u2019s Advanced Ceramic Moisture Sensor is coupled with C2TX microprocessor based measurement circuitry to produce a fully calibrated and interchangeable sensor professional transmitter module.
An in-built sampling system allows you to easily measure the dew point of any air or gas line, clean or dirty, at up to 20 bar pressure. A fixed orifice port arrangement allows you to select, simply by reversing inlet and outlet ports, whether to measure at atmospheric or line pressure. The integrated filter enclosure, accepting standard fibre filtering cartridges, gives 99.999% protection against particles to 0.1 micron and to liquid carryover. All this comes as standard.
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For measurement of the water content in solid and pasty samples, the Sartorius Water Detection System 400 is the ideal alternative to classic Karl-Fisher titration. The WDS 400 combines three reference methods – professional oven drying, coulometry (Karl-Fisher titration) and phosphorous pentoxide into a highly accurate measurement technique. Yet the WDS 400 is also easy to operate without having to have special training and eliminates the need for working with detection reagents, many of which are toxic and expensive.
• Detects water quantities in the trace range
• Selective differentiation among surface and capillary water and water of crystallization
• Operating range from a few ppm to approx. 40% moisture
• 1 µg detection limit
• ± 2% reproducibility of the absolute water content |
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Vaisala DRYCAP® Hand-Held Dewpoint and Temperature Meter DM70
The DM70 measures dewoint temperature accurately over a wide measurement range. It is ideal for indstrial spot checking and field calibration.The probe may be inserted directly into pressurized processes, and it responds rapidly from ambient to process conditions. The sensor withstands condensation.
The DM70 features a multilingual, menu-based user interface, and a clear graphical LCD display. Three measurement parameters can be displayed, numerically or graphically, and are logged into the meter's memory. An analog output option is also available.
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The Elcometer 319 has been designed to incorporate all the needs for climate condition monitoring, in a single gauge.
Air Temperature
Relative Humidity
Surface Temperature
Dewpoint Temperature
DT - The difference between dewpoint and surface temperature
Accessories available for the Elcometer 319 include:
Interface Cable and EDTS Excel Link Professional software to download your stored measurements fot further PC analysis
Infared professional printer for direct print-out of each dataset
Liquid Manufacturer of temperature probe for measuring liquids up to 330ºC/572ºF |
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As concrete structures are porous they can absorb moisture. It is therefore often necessary to measure and monitor the moisture content within the concrete.
Other substrates, which may have a high moisture content, include timber, fibreboard, plasterboard, gypsum and brick.
Elcometer 7420 Digital Moisture meter
This handy and easy to use instrument does not use pins and does not damage the substrate under test. The gauge is placed onto the material to be evaluated and quickly indicates the degree of moisture in concrete, fibreglass or wood down to a depth of 3cm (1.2")
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MCC has announced the addition of two battery powered temperature dataloggers to its growing datalogger line. These battery powered dataloggers are offered in two models: the USB-501 for remote temperature logging, and the USB-502 for remote temperature and relative humidity logging. These products are the perfect, cost-effective solution for long or short-term data logging applications. Both the USB-501 and USB-502 log up to 16,382 temperature measurements in the -35 to +80 ºC (-31 to +176 ºF) range. The USB-502 additionally supports up to 16,382 additional relative humidity measurements over the full 0 to 100 percent range. Rates for both dataloggers can be set from 10-second to 12-hour intervals. The loggers plug directly into a standard PC or laptop USB port for setup and data download. The included USB-500 Series Data Logging Application software supports both products. This user-friendly, intuitive software is used initially to configure the loggers, program alarm thresholds, logging rates, start times, and measurement units. When the loggers are retrieved from the field, the software provides simple one-click access to download, display, and export the data.
With the included USB-500 Data Logging Application software, the user can display time-stamped temperature, relative humidity, dew point, and alarm limits on a powerful strip chart graph. The data can also be downloaded to a text or a .csv (comma separator values) file. Supporting these file types allows users to easily export the logged data to Excel. With one mouse click, spreadsheets and reports are easily generated. The software and USB-500 series dataloggers are compatible with Windows 2000/XP. |
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