Continuous opacity or dust monitor
May 2003
Enclosures, Cabling & Connectors
Durag's D-R 290 monitor is designed for continuous opacity or dust monitoring of flue gas in stacks and ductwork. It is ideally suited for systems firing coal, fuel oil or a mixture of fuels, in converter plants asphalt mixing plants and cement production plants.
The microprocessor-based monitor operates on the auto collimation (double pass) measuring principle. It has a measuring range from 0 to 200 mg/m3 up to 0 to 4000 mg/m3 with a 1-12 m path length. A photo-element alternately receives the measurement and comparison light beam. Switching between these, it proceeds through an electro-magnetically actuated rotary diaphragm. For check value compensation, comparative measurements of 2 s occur every 2 minutes.
The D-R 290 is equipped with two analog measurement value outputs and each output has two selectable extinction or opacity ranges. The measurement ranges are selectable from 0,1 to 1,6 for extinction, and from 20 to 100% for opacity. Opacity computation of the opacity at the stack outlet is possible by means of the stack correction factor.
Periodically, the monitor automatically performs a cycle check, measuring and indicating the zero point, the soiling of the optical boundary surfaces, as well as providing a reference value. Condensation and deposits are avoided on the signal lenses by the use of a heated pane.
For more information contact Noel Bauchop, OEN Enterprises, 011 675 4447, [email protected], www.oenenterprises.co.za
Further reading:
Innovative cable entry for maximum flexibility and efficiency
Enclosures, Cabling & Connectors
icotek is setting new standards in terms of flexibility, efficiency and space-saving with a new series of cable glands.
Read more...
Safety-critical fibre optic systems in mining
Omniflex Remote Monitoring Specialists
Enclosures, Cabling & Connectors
Omniflex highlights the importance of fibre optic technology in in enabling systems in the mining industry to transmit shutdown commands reliably over tens of kilometres and verify that they have been executed.
Read more...
Compact integration of 3A and 4A connectors
Enclosures, Cabling & Connectors
With the new AT-HA grommet, icotek is expanding its innovative IMAS-CONNECT adapter system with a forward-looking solution for industrial use.
Read more...
Space-saving I/O module for control cabinets
ifm - South Africa
Enclosures, Cabling & Connectors
The IO-Link I/O module from ifm simplifies integration of sensors and actuators with conventional wiring in the control cabinet as well as in field applications with low IP protection class requirements.
Read more...
Rittal’s flat-pack enclosure solution
Rittal
Enclosures, Cabling & Connectors
The launch of Rittal’s FR IT flat-pack enclosure earlier this year marked a milestone for the company, introducing the local market to a high-capacity, top-tier IT enclosure in a convenient and cost-effective flat-pack format for the first time.
Read more...
The future of industrial connectivity
LAPP Southern Africa
Enclosures, Cabling & Connectors
Designed to meet the demands of modern industry, the EPIC DATA RJ45 connector from LAPP delivers a combination of durability, performance and versatility suited to demanding industrial environments.
Read more...
Hybrid connectors for distributed automation
Beckhoff Automation
Enclosures, Cabling & Connectors
Beckhoff’s ECP and ENP connector series combine power with signal and data communication by means of One Cable Automation (OCA) and thus significantly reduce cabling work.
Read more...
Power distribution reinvented
Rittal
Enclosures, Cabling & Connectors
Rittal has developed the RiLineX, a modular busbar system that redefines how power is distributed inside electrical enclosures.
Read more...
Flexible, lightweight disc couplings for advance
Bearing Man Group t/a BMG
Enclosures, Cabling & Connectors
BMG has expanded its extensive portfolio of quality branded couplings with the introduction of the ESCODISC FIL series, a new generation of flexible, lightweight disc couplings.
Read more...
Bayonet connectors with extreme shock and vibration resistance
Enclosures, Cabling & Connectors
ITT Cannon’s versatile and extremely reliable series of CA bayonet connectors are available through Powell Electronics, a specialist in connectors for mission critical applications including defence, aerospace and industrial.
Read more...
printer friendly version