42 Water / Wastewater New Portable pH Meter
Hanna Instruments (USA) introduces a new portable pH meter; HI 2030 edge – Multiparameter Meter (EC kit), which measures pH, conductivity and dissolved oxygen through its unique digital electrodes. These digital electrodes are auto-recognised. Providing sensor type, calibration data and serial number when connected to edge with an easy to plug-in 3.5mm connector. The edge has a versatile design, which is equally at home in your hand, on a lab bench or mounted on a wall. It simplifi es measurement, confi guration, calibration, diagnostics, logging and transferring data to a computer or a USB drive.
It features Hanna’s exclusive CAL-CHECK to warn you if the pH electrode you are using is not clean or if your buffers are contaminated during calibration. Indicators are also displayed for response time and probe condition that is based on the offset and slope of the electrode.
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Rapid Test Catalogue CATALOGUE
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The new and updated 2014/2015 catalogue details the large range of rapid tests that MACHEREY-NAGEL (Germany) produces in the field of water analysis. For the qualitative and quantitative analysis of ions in solutions, MACHEREY-NAGEL test papers and test strips provide quick and easy screening methods for water, environmental, agriculture and laboratory monitoring.
For more detailled information, colourmetric and titrimetric VISOCOLOR® kits and photometric NANOCOLOR®
test products are ideal for uncomplicated
analysis. Rapid tests for microbiological determinations complete the range. The colour coding and intuitive strucutre of the catalogue allow you to browse through the catalogue quickly and easily.
With extensive details concerning applications, benefits, handling and chemical background information, you can find the ideal test for your analysis.
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Sensors for TOC Monitoring Go Global
Edinburgh Sensors (UK) is pleased to announce its sensors are now being integrated into a number of systems for Total Organic Carbon (TOC) measurement. A number of key global players have adopted Edinburgh Sensors products into their applications and as interest continues, Edinburgh Sensors are becoming the product of choice.
Total Organic Carbon represents a measure of the amount of carbon, in a water sample, that has a biological source; this includes oil.
The Total Inorganic Carbon (TIC) is typically removed from a sample using acidifi cation and/
or purging before oxidising the remaining organic carbon in the water sample to carbon dioxide and then measuring the amount of carbon dioxide produced.
There are several methods of oxidising the organic carbon employing: - oxygen, wet chemistry, UV radiation or heat to produce the carbon dioxide. Whichever method is used, the result is carbon dioxide dissolved in a carrier
gas, commonly oxygen.
The carrier gas is passed through the Edinburgh Sensors NDIR gas sensor to measure the carbon dioxide content. The higher the carbon dioxide concentration the higher the TOC level and the less clean the water sample is.
Depending on the cleanliness of the water under test and the methods used different carbon dioxide concentrations are to be expected in the carrier gas, from wastewater with mgms/l of organic carbon giving % levels of carbon dioxide to drinking water with y µgms/l giving ppm’s of carbon dioxide in the carrier gas.
Edinburgh Sensors is a division of Edinburgh Instruments, according to Mark Vosloo, CEO, “We are delighted that our high performance sensors products are delivering the speed, accuracy and reliability required by customers. Equally, our products are easy to integrate which makes it the product of choice.”
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Air Flow Meters Now with Full Suite of Global Agency Approvals
Sierra Instruments (USA), global mass fl ow meter manufacturer, is pleased to announce its evolutionary QuadraTherm 640i/780i air fl ow meters haves received global approvals for the following standards of safe operation in potentially hazardous environments: cFMus (USA and Canada), ATEX (European Union) and IECEx (International). This signifi es that the QuadraTherm is certifi ed as fl ame-proof and protected from dust ignition sources and meets all design criteria for electrically-powered fl ow meters used in areas where combustible gases may be present.
The IECEx and ATEX certifi cation programs ensure explosion-proof and hazardous area compliance in the European Union and international destinations. The cFMus certifi cation program ensures explosion-proof and hazardous area compliance in the United States and Canada. With approvals, QuadraTherm is approved for applications in hazardous plant areas like facilities management, chemical processing, oil & gas, wastewater, and natural gas throughout the European Union and international communities.
“We designed and tested the QuadraTherm air fl ow meter for safe operation in heavy industrial applications. The global approvals are a recognition that years of hard work in design and testing were right on target. Now our customers can use the QuadraTherm in even more heavy industrial application across the globe,” says Scott Rouse, Product Line Director.
The QuadraTherm thermal mass fl ow meter’s approvals are as follows:
Wireless Interface for Tank Monitoring Instrumentation
cFMus - Class I, Division 1, Groups B,C, and D; Process Temperature Range: -40°C to 200°C (-40°F to 392°F); T3C Ta = -40°C to 60°C (-40°F to 140°F), and Type 4x.
ATEX and IECEx Approvals - II 2 G Ex d IIC T3 Gb; II 2 D Ex tb IIIC T200°C Db; Ta = -20°C to 60°C (-4°F to 140°F); Process Temperature Range: -40°C to 200°C (-40°F to 392°F).
With these global approvals, Sierra’s QuadraTherm air fl ow meter can be used throughout the world where hazardous or explosive environments may be present, expanding the market for our customers.
Options: • Ex Models • Battery Power • Solar Panel
• Level Monitoring • Flow Measurement • Temperature & pH
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The QuadraTherm provides the best accuracy +/- 0.5% of reading above 50% of full scale for fl ow meter air measurement and other gases; built-in fl ow conditioning (inline version); multivariable outputs; fl ow ranges up to 60,000 sfpm (305 smps); qTherm, Dial-A-Gas, Dial- A-Pipe; and Hazardous Area approvals. The QuadraTherm is available in two models: the 640i insertion and 780i inline. The QuadraTherm family has a no-drift sensor with lifetime warranty; has multivariable output: mass fl ow, temperature, pressure (optional); measures all inert and all non-condensing clean gases; fl ammable gases (methane, propane, hydrogen, and digester gas); repeatability for mass fl ow rate is +/- 0.15% ; ValidCal Diagnostics to validate calibration in the fi eld; and gas accuracy is +/- 1°C (1.8°F).
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