Measure dust concentration in wet gases

April 2010 Analytical Instrumentation & Environmental Monitoring

Durag’s D-R 820 F is a system that reliably measures dust concentration in wet gases and sticky dusts that tend towards caking. The highly sensitive system for continuous extractive dust concentration measurement operates using the principle of scattered light.

Compact in design, the D-R 820F provides an automatic function test with soiling correction without any laborious gas withdrawal. The instrument has very low maintenance requirements and there is no need for device adjustment.

The system comprises a special sampling probe, a gas conditioning unit (dilution, tempering), the laser dust monitor, an injector, two fans and an electronic evaluation unit. The sampling probe and the measuring chamber form an assembly. The electronic evaluation unit and one side-channel compressor for operating the injector and one for generating the diluting air are mounted together on a rack frame. The system meets IP55 protection class requirements and operates in a –20 to 50°C ambient temperature range.

The measuring range with dust in operation is 0-15 (max. 100) mg per cubic metre and space requirements are 1 100x1 75 x1 100 mm. Potential applications measurements in saturated gas downstream of desulphurisation plants, downstream of wet cleaning plants, waste incineration plants, particle board manufacture, urea industry and insulating material manufacture.

For more information contact Jan Pretorius, OEN Enterprises, +27 (0)11 675 4447, [email protected], www.oenenterprises.co.za

Further reading:

Matching HVAC to the real demands of buildings and processes
Analytical Instrumentation & Environmental Monitoring
Industrial Climate Engineering director, Alin Gomes explains why effective HVAC goes beyond specifying equipment on capacity, covering load profiling, ventilation requirements, heat recovery and turnkey delivery for specialised manufacturing and processing environments.

Read more...

---

How SCE approaches sensor selection for critical environments
Specialised Climate Engineering Analytical Instrumentation & Environmental Monitoring
Specifying the right sensor for a critical climate involves far more than matching a datasheet accuracy figure. As an authorised Vaisala HVAC partner, SCE explains how understanding the environment, the measurement purpose and sensor placement determines effective climate control.

Read more...

---

Changing gas quality calls for smarter combustion control
Analytical Instrumentation & Environmental Monitoring
As South Africa prepares for a transition from declining Mozambican natural gas to a proposed methane-rich bridge, LNG, industrial users can no longer assume a constant Wobbe Index and calorific value. The compact RMG RGQ 5 provides fast, plant-level gas-quality data to support approved burner and engine settings.

Read more...

---

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...

---