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Automation & Control

This analyzer optimizes biogas yields, minimizes H2S formation

Designed and manufactured in Germany, the Awi-Flex multifunctional biogas analyzer is supplied with a small air compressor that regulates air injection into the digester (above the sludge level) to between 0.5 and 1 vol.% for breaking down H2S into elemental…

Level control is simplified with non-steady-state tuning

This company’s software now includes non-steady-state (NSS) modeling features for integrating control loops. These tools are said to provide fast, simple modeling and tuning of level controls. Unlike temperature, pressure and flow, level controls have different dynamics, and these new…

This O2 analyzer is certified for hazardous areas

This company has attained CCSAUS certification for its XTP601 Oxygen Analyzer, making it approved for use in hazardous areas in the U.S. and Canada. The instrument already carries certification from ATEX and IEC Ex. The XTP601 uses thermo-paramagnetic measurement technology…

Clamp on this process meter to measure currents

Launched last month, the CL420 Clamp-on Process Meter measures 0–120-mA d.c. process-control signals without breaking the loop. Typical applications include distributed control systems, programmable logic controllers, pressure and temperature transmitters and loop-powered isolators and indicators. The device offers a 0.2%…

Measure soil dampness with one hand

The new HSM50 Series of digital handheld moisture meters is easy to operate, and enclosed in a compact ABS-plastic housing for measuring moisture in soil or similar material. The microprocessor-based device displays data quickly and accurately on an LCD screen.…

A Web-based application for generating valve assemblies

The new RapidDraw3D Valve-model Generator is a free automated valve-assembly model generator that allows users to quickly generate realistic, to-scale three dimensional (3D) valve assemblies and export them to any CAD program for use in plant piping diagrams. RapidDraw3D is…

This dissolved oxygen sensor is based on optical measurement

The 2610 Optical Dissolved Oxygen sensor uses optical technology to measure dissolved oxygen, rather than the galvanic or polarimetric measurement technologies that have been used traditionally. The existing technologies require membranes and reference solutions, while the optical technique does not.…

This handheld monitor of particulate matter has a high selectivity range

The Microdust Pro airborne particulate matter monitor is a portable, hand-held instrument that assesses concentrations of suspended matter in a sensitivity range of 1 µg/m3 to 2,500 mg/m3. The wide range makes it one of the most versatile monitors on…

Thermodynamics for process simulation reviewed by ChemStation’s Hill

Reviewed by David Hill, Chemstations Inc., Houston   The authors of this text are leaders in chemical engineering thermodynamics. Based on their status, I recommended this book in a blog entry before even seeing a review copy — and I’m…

Detect gas leaks at the source with this handy device

The portable GSP3 and GSP3 Flex (photo) gas detectors are designed for fast and reliable detection of leaks of inflammable gases at gas pipes and connections, gas meters, gas burners and gas tanks. The GSP3 Flex is equipped with a…