58 Measurement and Testing
Combustion Analyser for Rough Environments
NEO Monitors unveils the industry’s most compact CO combustion analyser suitable for the most demanding environments. LaserGas III CO includes measurement of CH4
, H2 in one single unit designed to reduce risk.
Based on decades of experience and customer feedback, NEO Monitors has designed an Ex-d certifi ed tunable diode laser (TDLS) analyser. The instrument is based on the proven LaserGas III platform, and is for those that need CO-monitoring in combustion processes. In combination with LaserGas III SP O2
O and temperature
Hygienic Conductivity Sensor Released for Oil and Gas Applications
Endress+Hauser releases the Memosens CLS82D conductivity sensor for production, process development and laboratory applications in the oil and gas industry. The four-electrode sensor measures conductivity from 1 µS/ cm to 500 mS/cm and temperature from 23 to 248 °F (-5 to 120 °C) with accuracy of ≤4% and repeatability of 0.2%.
, the analyser is the answer to any combustion process where
increased explosion safety is a requirement. This is especially valid for installations in oil & gas- and chemical industries.
The new analyser ensures that Neo Monitors’ customers need less investments in costly systems for purging and safety of the traditional Ex-p type of instruments. This also reduce operating and maintenance cost signifi cantly, says Ketil Gorm Paulsen, CEO at NEO Monitors.
The LaserGas III CO combustion analyser is also capable of measuring CH4 , H2 O and temperature.
Designed according to IEC61508 and Ex-d makes it suitable for safety critical applications in any environment from unclassifi ed to zone 1-installatations.
We hope that this new analyer makes it easier for the industries to adopt to TDLS as the preferred technology for combustion control. Neo Monitors customers will now have one compact solution that they can use at any location of a plant. The solution is suitable from short measuring paths up to measuring paths of 25 meters and above, says Paulsen.
The LaserGas III SP family of analysers are now adapted to combustion applications. With two compact analysers, it offers the possibility to monitor all main components in a combustion process, which is O2
CO, CH4 , H2 O and temperature. Typical applications that will benefi t from the new solution are FCC
units, package boilers, process heaters, electrostatic precipitators, VCM waste gas recovery, reformer gas, incineration, etc.
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TESTS AVAILABLE FOR: PPB Dissolved Oxygen COD Iron
Sulfide Chlorine Ammonia Phosphate and more ...
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For hygienic applications, the CLS82D has 316L stainless steel construction, electropolished surfaces that are easy to clean, hygienic process connections and IP68 protection, and it can be sterilised in place (SIP) at temperatures up to 284 °F (140 °C) for clean-in-place (CIP) operations. The CLS82D is certifi ed for EHEDG, FDA, 3-A and pharmaceutical applications. Typical applications include phase separations, chromatography, fermentation, CIP, monitoring and ultrafi ltration.
The sensor is available in a standard PG13.5 thread size, with 1.5 and 2 inch Tri-Clamp sanitary fi ttings, or with an NPT fi tting, making it suitable for a variety of applications.
The conductivity measuring cell has four platinum electrodes housed in a ceramic sensor element. Similar temperature expansion behaviors of the materials ensure the material bond stays tight even during extreme temperature changes, allowing cleanability and aseptic hygiene.
During operation, an alternating current is applied to the outer electrode pair. At the same time, the voltage applied is measured at the two inner electrodes. The electrolytic conductivity between the electrodes can be reliably established based on the measured voltage and the current fl ow caused by the liquid’s resistance. The advantage of this technology compared to traditional two-electrode sensors is that electrochemical effects at the live electrodes are suppressed by the two additional voltage measuring electrodes.
The sensor connects to an Endress+Hauser Liquiline transmitter that sends conductivity and temperature information to a process control, SCADA or monitoring system via 4-20mA HART, Profi bus DP, Modbus RTU or EtherNet/IP. Liquiline transmitters also have a web server that allows the CLS82D’s output, status, diagnostics, logbooks and calibration information to be viewed on a handheld tablet, smartphone or laptop PC via a Wi-Fi or internet connection via any web browser.
The CLS82D is a digital sensor, so it can stores a variety of data in the sensor itself including serial number, data of manufacture, calibration date, number of calibrations, conductivity application range, cell constant, hours of operation at high temperatures, and other data quantifying operating history. These features allow “plug and play” compatibility with the Liquiline transmitter to simplify commissioning, maintenance and replacement—while also improving improves reliability.
For example, an existing sensor can be quickly replaced with a pre-calibrated sensor which automatically connects to the Liquiline transmitter via a non-contact digital connection, eliminating problems with moisture and corrosion. Maintenance intervals can be more effi ciently determined based on stored sensor load and calibration data instead of simply on a calendar basis.
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INNOVATE Water Quality Testing for the Petroleum Industry
As the world leader in supplying custom test methods for applications in the Petroleum industry, we have been providing simple and accurate measurements for over 45 years.
Precise, accurate and sensitive Simple test procedures Rapid test results Reduces operating costs
Available in visual and instrumental formats
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(07.18.14f)
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