January 2006Maintenance, Test & Measurement, Calibration
Products & Solutions
Mettler Toledo offers a selection of measuring systems especially for monitoring industrial and municipal wastewater, as well as for wastewater treatment. They can be used to measure pH values, redox potential, electrolytic conductivity and dissolved oxygen content.
The ValueLine transmitters are easy to use and offer more than just basic functions, such as automatic calibration, temperature compensation, controller functions with two current outputs for signal processing, two limit contacts, alarm and wash contacts. Mounting can be either directly into a control panel cut-out or in an optional standalone enclosure.
Mettler Toledo's Ingold electrodes are renowned for their long service life and reliability. For more than 40 years they have been successfully integrated in measurement systems in demanding applications in the biotechnology, food and beverage and traditional chemical process control areas. ValueLine sensors, which have been developed specifically for wastewater applications, offer many of the advantages of process sensors, at an optimum price/performance ratio.
The InPro 4010 pH electrode has a special polymer electrolyte that ensures its non-susceptibility to contamination even in heavily polluted wastewater. A Pt100 or Pt1000 temperature sensor is incorporated for automatic temperature compensated measurements. The InPro 6050 dissolved oxygen sensor needs very little maintenance and has a long service life. Owing to the polarographic principle of measurement, the sensor is virtually independent of the flow.
Numerous options are available for process adaption of the sensors: immersion, insertion and flow-through housings as well as retractable housings. In conjunction with the EasyClean series of control systems, the sensors can be flushed, cleaned and calibrated automatically in-line where required. This keeps maintenance efforts to a minimum, while measurement accuracy and service life of the sensors is optimised.
Microdieseling – the explosions you never hear
Maintenance, Test & Measurement, Calibration
Microdieseling is a pressure-induced thermal degradation mechanism in which entrained air bubbles are compressed so rapidly that the surrounding oil ignites, producing soot, varnish and sludge. WearCheck explains how it happens, why the damage varies, and how oil analysis detects it.
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Maintenance, Test & Measurement, Calibration
WearCheck technical manager, Steven Lumley explains how static electricity accumulates in modern low-conductivity lubricants, why compact system designs and fine filtration make ESD more likely, and how to recognise the degradation it leaves behind.
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Vision Research has expanded its Phantom C-series with two cameras optimised for crash and safety testing, offering 4 and 8 megapixel sensors rated to 170G, up to 1180 frames per second, and Phantom Academy application training planned for South Africa next year.
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Maintenance, Test & Measurement, Calibration
Using its clearance modification expertise, SKF helped a mining equipment OEM salvage spherical roller bearing inventory that would otherwise have been scrapped, confirming a new capability within its remanufacturing services and avoiding redundant procurement.
Read more...When maintenance-system compliance starts replacing plant reliability Wearcheck
Maintenance, Test & Measurement, Calibration
WearCheck ARC division manager, Annemie Willer argues that the greatest threat to effective maintenance is no longer a lack of technology, but the gradual replacement of technical judgement by CMMS compliance, leaving no one owning the machine.
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Paxton’s wireless access-controlled door handle is engineered to withstand the most demanding environments, while maintaining a sleek, contemporary design. It includes a new Privacy Button, and offers up to 55 000 operations on a single set of batteries.
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Most estates have no shortage of guards, cameras and boom gates. The harder questions are: can you see what is happening across the whole estate right now, and do you hear about a problem before a resident does?
Read more...Dallmeier offers 12 MP resolution Dallmeier Electronic Southern Africa
Surveillance Products & Solutions
Dallmeier is expanding its Domera camera portfolio with the new 6900 series with up to 12 MP resolution and improved light sensitivity. The higher resolution also helps meet the increased requirements of IEC 62676-4:2025.
Read more...Nitration: the acid you didn’t see coming Wearcheck
Maintenance, Test & Measurement, Calibration
Nitration is as destructive as oxidation in many engines but far less understood. WearCheck technical manager, Steven Lumley explains how nitrogen oxide gases degrade lubricants, why the process is difficult to detect, and what oil analysis can reveal before damage occurs.
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