In-line O2-measurement in breweries
April 2001
Analytical Instrumentation & Environmental Monitoring
Oxygen levels play a significant role in brewery operations right through from the initial preparation of the wort down to filling of the finished product.
The oxygen level must be strictly controlled because any oxidation of substances contained in the brew can lead to a noticeable change in taste, diminish shelf-life and affect the clarity of the final beer. Hence, care must be taken throughout the brewing process to minimise air pick-up, calling for the installation of a monitoring means to detect leaks.
On the other hand, the propagation of the yeast at the start of fermentation requires the presence of oxygen. With the aid of on-line oxygen measurement, continuous and consistent quality control on all measuring sites is ensured.
The table indicates typical measuring sites in breweries, with the concentrations of oxygen that one would typically find in such plants.
Table 1. Typical measuring sites in breweries
Recommended sensors and related equipment for this application
Krohne recommends O2 - 4500 transmitters, inPro 6100/T/N/120 and inPro 640X/T/N/120 O2 sensors - with either InFit 761-25CIP, or InTrac 797/75 housings.
Advantages include:
* EHEDG tested with 3 A compliant housings and sensors available (CIP recommended).
* Sealing material is as per FDA guidelines.
* Easy membrane replacement.
* The ability to remove sensors without having to stop the process (InTrac 797 retractable housing).
* Sensor and transmitter diagnostics result in a system that contributes toward improving safety, with early warning of any impending failure made possible.
Mettler Toledo is represented locally by Krohne.
Krohne
(011) 314 1351
[email protected]
www.krohne.co.za
Further reading:
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...
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...
printer friendly version