Water/Wastewater New Compact Photometer
After launching the compact photometer PF-3 last November, Machery-Nagel (Germany) is constantly working on adding new tests and versions to increase the breadth of the PF-3 line. Thus you can use exactly the right photometer for your particular water analysis needs.
As of right now, analysis for both the swimming pool and drinking water segment are possible with the PF-3 version A, enabling the analysis of many crucial parameters, such as chlorine, pH, cyanuric acid, total alkalinity, fluoride, iron, chlorine dioxide and others. With the multiple pre-packed reagent cases available, Machery-Nagel can provide you with the perfect photometric testing solution for your individual requirements.
Soon they will launch a new version that enables quick and reliable soil analysis. Here the PF-3 as a robust and mobile instrument is especially suited. Being able to analyse the most important soil parameters (ammonium, nitrate, phosphate, potassium), it can be used right at the point of interest generating critical results in no time. Also, in this version both the high-end NANOCOLOR as well as the economical VISOCOLOR tests can be evaluated, adding even more possibilities for the user. The PF-3 will also be available in a special set-up together with Machery-Nagel's well-established soil analysis case, which provides highly comprehensive soil analysis and elution techniques.
Additionally, a version specifically for COD analysis will come to market in the near future, providing a unique and mobile COD analysis unit. Even low range COD tests can be safely evaluated using the PF-3, making it the ideal companion for various industrial applications and in-field analysis.
Of course, in all versions, users benefit from the intuitive user guidance and comprehensive menu structure of the PF-3, as well as the strong and robust design. It is water proof according to IP 68 and can withstand even the toughest environmental conditions due to its glass-fiber reinforced housing. Additional features such as an optional 0-measurement storage, multiple power supply options and a bright display add to the power and user friendliness of the PF-3.
Data transfer is made easy using the instrument’s mini USB-port and as with all Machery-Nagel photometers, free of charge software packages are provided, to administer and manage your data. Using the USB interface, you can also add any additional tests that may be available for your specific version for free. Thus, Machery-Nagel can address customers’ future needs, so they can benefit from all the options of their systems without incurring unnecessary costs.
The PF-3 and its new versions will provide attractive solutions for your analytical requirements in the specific areas of COD and soil analysis.
For More Info, email:
25804pr@reply-direct.com
COD Quick Tests For Even More Applications
With no less than 14 different COD test kits WTW (Germany) covers the full measuring range of the most important sum parameter. Concentrations from 4 to 90,000 mg/l COD can be determined comfortably and reliably.
Depending on application and range, the kits are ISO and US EPA compliant and meet the German standard DIN 38409 H44. Some kits allow an increased content of chloride for measurements in the ultra-high range up to 90,000 mg/l.
Due to this wide choice of measuring ranges, sample dilution is not required, thus eliminating a potential source of errors. Another essential advantage of COD test kits is the closed test system and the low volume of required reagent content in the vials, thus contributing to precise measuring results and to environmental protection.
The test kits can be used with WTW’s photoFlex colorimeters and photoLab photometers for applications ranging from waste water before and after treatment to industrial and production plants for internal control.
For More Info, email:
25650pr@reply-direct.com email:
26ad@reply-direct.com
Optimised pH System for Coagulation/Flocculation Stages
The most critical pH measurements and control are for the ‘Treated Raw Waters’. The pH of these waters is critical in order to optimise the addition of flocculent/coagulation chemicals.
These raw waters especially in winter months are cold (close to freezing) and often low ionic. With these 2 factors, using pH sensors with porous reference junctions, it’s impossible to achieve stable and accurate pH measurement. Porous electrodes all suffer diffusion potential errors (ca pH 0.3) and at low temperatures the impedance of the pH glass membrane increases by a full decade (RT 20 C impedance of 200 MOhm at zero this becomes 2000 MOhm). The net result is hit and miss pH correction and addition of coagulant/flocculent chemicals. This lack of pH control affects the effectiveness of the coagulation that adversely affects the filtration stages downstream.
The Refex (Europe) pH sensor uses a unique and patented hard-non-porous ionically conductive material that has replaced the need for the unreliable and inaccurate porous reference junction. The polymeric Refex material acts as an immobilised KCl electrolyte
and also as an interface/barrier that separates the raw waters from the electrode’s internal Ag/AgCl half cell – hence there is no liquid contact/exchange. With no diffusion potential errors and Rock-Solid mV stability (no drifting) this Refex arrangement is almost maintenance free (every 90 days is achievable).
Accurate pH calibrations using buffers with values close to the pH value of the waters being tested – it’s possible to achieve a pH resolution of pH 0.01. Only the Refex electrode can achieve such tight resolutions.
Savings: Chemical Savings - Correcting / flocculation/coagulation > GBP 2000,--/month/WTW; Maintenance: Usually weekly or Bi-weekly calibrations can be extended to every 90 Days; Long Life – the Refex electrode lasts longer than all others (5-10 times longer life).
The Refex electrode has a higher impedance reference (< 1 MOhm), for this reason it is necessary to use a top quality pH transmitter that has duel high impedance inputs for both pH and reference electrodes. 2 x 10 x 12 Ohm is the best. This is very important.
Refex offers new customers a Free Try-It/Like-It/Buy-It opportunity, free for 90 days obligation free.
26174pr@reply-direct.com
For More Info, email:
5-10 times longer life - Maintenance free (every 90 days) THE FIRST
REFEX TO LAST Refex pH/mV Sensors
• Best for all Water and Wastewater Applications • Solid-State Non-Porous Polymeric Reference • Accurate • Zero mV Drifting • Up to 10 Times Longer Electrode Life • Zero Maintenance (Resistant to Fouling and Poisoning) • Compatible with Good Quality pH Transmitters • Patented • Chemically Resistant Polymer • Resistant to High and Varying Temperatures (0-130C)
• Resistant to High and Varying Pressure ( Full vacuum to > 30 BAR pressure)
• Significant Savings all Round
FREE TRIAL OFFER - 90 Days Try It / Like it / Buy it offer (no obligations)
FREE CONSULTANCY Contact
timhrussell@live.com
EUROPE: Refex Sensors Ltd – Westport – Mayo – Ireland
refex07@eircom.net
USA: South Fork Instruments - San Francisco - CA
jmdaly@southforkinst.com
ASIA: Accurate Sensors SDN BHD – Malaysia
timhrussell@live.com
OEM and Dealer enquiries welcomed pH Problems?? Contact
timhrussell@live.com 'Refex Sensors, Experts in pH Control' email:
171ad@reply-direct.com
www.envirotech-online.com IET Annual Buyers Guide 2013
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