September 2002Analytical Instrumentation & Environmental Monitoring
The Oldham France EP1000 stack and dust analyser and monitor are well received by various South African companies because of the unique features and stability of the product.
The features include:
* Readings are linear therefore minimising requirement for multipoint isokinetic calibration sampling.
* Installation is made easy with sighting facility while the IP65 rated enclosure allows adequate protection against the elements.
* The EP1000 is able to operate in stack temperatures in excess of 500°C.
* Measurement range is from 0 to 10 g/m (in 10 user selectable ranges). A unique feature is the ability to program up to 10 separate locations or processes. This facility allows the user to use the EP1000 for different applications without re-calibration of the instrument.
* An optical calibrator is also available for periodic checking of the instrument.
* Standard outputs include 4-20 mA, RS485 or RS422 (MODBUS) protocol.
The principal of measurement results in precision over a wide range, as the laser backscattering is proportional to the concentration of dust.
The laser beam backscattering process:
* Pointed into the dust-bearing column, the laser beam is scattered by the dust particles back towards the instrument, providing a signal proportional to dust concentration.
* The light ray emitted by the laser diode goes diagonally across the chimneystack.
* Dust particles inside the light ray, scatters back some light towards the instrument.
* This light is picked up by a light sensor inside the instrument, and is amplified to provide a signal proportional to dust concentration.
The EP1000 uses a laser diode that issues a 2 kHz modulated laser beam, operating with a wavelength of 660 nm. The laser produces an average of 1 mW and falls into the 3 A class.
Advantages of the EP1000 include:
* The use of a blower with overpressure to prevent dust from settling on optical components.
* An optional display and keyboard for easy control.
* The kind of measurement technology is very well adapted for large diameter stacks in power plants, because of no alignment dependence, a very long measurement path (more than 5 m), and no vibration dependence.
* In-situ measurement.
* Synchronous detection permits freedom from background measurement noise.
* Waterproof cabinet enables outside mounting with temperature range -30,
+60°C.
* Display panel on device (optional) permits the user to view the measurements, as well as internal parameters, and to do set up locally.
* Does internal conversion from backscatter signal to output reading in mass/volume (g/³).
* Ventilation and blowing mechanism integrated in the mantle prevents the optics from contamination, by creating an overpressure of air in front of the optics, especially in the chimneys with higher than atmospheric pressure, it also acts as cooling mechanism for the instrument.
* The use of an airflow detector raises an alarm upon blower failure.
* An automatic internal zero check is done to ensure correct zero point operation. No span check is required on a regular basis, due to inherent stability of the laser diode and optical sensor technology. A span check can be done from time to time with the use of an external optical calibration tool.
Suitable applications are scrubber/filter efficiency, stack emissions, etc. The EP1000 has TUV certification and complies with EPA regulations. Spero Group is the sole agent for Oldham France.
Getting the chemistry right
Analytical Instrumentation & Environmental Monitoring
Grace’s European production site has relied on analogue compression load cells from Minebea Intec for decades, with the long-proven measurement concept now serving as the reference for new silo projects as the company expands its capacity.
Read more...Why measurement matters in smelting Endress+Hauser South Africa
Analytical Instrumentation & Environmental Monitoring
South African smelters returning to operation after energy constraints face new demands for tighter control, better visibility and environmental compliance. Endress+Hauser explains how modern measurement technology supports safer, more efficient furnace operation and local beneficiation.
Read more...Sun tracking with pinpoint precision Senseca
Analytical Instrumentation & Environmental Monitoring
Senseca has introduced the SEMS-2000 solar energy measurement system, a 2-axis solar tracker with pinpoint sun-pointing accuracy that automatically monitors direct, global and diffuse irradiance for unattended outdoor solar installations.
Read more...AMETEK expands 993X gas analyser series with explosion-proof enclosures
Analytical Instrumentation & Environmental Monitoring
AMETEK Process Instruments has added ATEX and IECEx Zone 1-certified explosion-proof enclosures to its 993X series of gas analysers, enabling reliable installation in Zone 1 hazardous locations where purge gas is unavailable.
Read more...Why medical device leak testing matters for South Africa's MedTech future ATEQ South Africa
Analytical Instrumentation & Environmental Monitoring
As South Africa works to grow local medical technology manufacturing, non-destructive leak and flow testing is becoming a strategic quality assurance tool, helping manufacturers verify device integrity, meet regulatory requirements and improve production efficiency.
Read more...Moving forward with reverse osmosis
Analytical Instrumentation & Environmental Monitoring
Rising water costs and pressure on infrastructure are changing the way industries view reverse osmosis. G-Chem Aquacare is developing tailored, containerised solutions that make the technology more accessible for South African industry.
Read more...Meteorological data logger with up to 32 analogue sensors Senseca
Analytical Instrumentation & Environmental Monitoring
Senseca has introduced its advanced data acquisition system for environmental monitoring, which has a universal data logger for up to 32 analogue, pulse and smart digital sensors.
Read more...Importance of gas analysis in the petrochemical industry Elemental Analytics
Analytical Instrumentation & Environmental Monitoring
Gas analysis plays a critical role in petrochemical operations, supporting process optimisation, product quality and plant safety. As an experienced and expert gas analysis supplier, Elemental Analytics can provide the correct analyser and sample system package to meet individual plant requirements.
Read more...Fully integrated standalone thunderstorm warning system Senseca
Sensors & Transducers Analytical Instrumentation & Environmental Monitoring
Senseca South Africa has introduced its BTD-1 fully integrated, standalone thunderstorm warning system, which detects lightning by monitoring the background quasi-electrostatic field. The system can generate alerts before the first lightning strike, with a detection raterange of up to 83 km.
Read more...Environmental monitoring with testo Saveris 1
Analytical Instrumentation & Environmental Monitoring
The testo Saveris 1 environmental monitoring system has been in continuous use since 2010 at Jungbunzlauer, a biotechnology company in Germany, providing seamless temperature and humidity data for audit-ready, GxP-compliant processes across laboratories, warehouses and production areas.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.
printer friendly version