Industrial Wireless


Omniflex upgrades alarms for Uganda hydro plants

September 2025 Industrial Wireless

Legacy alarm replacement specialist, Omniflex, has worked with the Uganda Electricity Generation Company (UEGCL) to provide an upgrade solution for plant alarm equipment across the Nalubaale and Kiira hydroelectric power stations on Lake Victoria. Omniflex Omni16R replaces the 49-point obsolete MPAS90 systems, first installed in the 1970s, which are now end of life and no longer manufactured

The new OMNI16R units are packaged to minimise engineering and plant redesign, while bolstering up-to-date plant-wide safety. MPAS90 was manufactured by Highland Electronics, a specialist in alarm annunciators, based in the UK. The company went out of business in 2002, so product support and direct replacements haven’t been possible for over 20 years. Omniflex stepped in to provide the OMNI16R using a ‘fit, form and function’ process, allowing the new equipment to fit in the same space and use the same wiring as the previous equipment, which included the 50 V DC logic, minimising the operational disruptions normally associated with system installation and testing.

Failure to replace obsolete alarm annunciators would mean functionality would fail and prevent the plants from meeting their targets, which are energy availability and ensuring operational safety integrity levels (SILs). The Omni16R rack and the alarm input wiring is engineered to be identical to the previous MPAS90, with alarm card terminals located suitably to match the old wiring, thereby saving many hours during retrofit.

The old alarm system fascia was replaced with the Omniflex Omni-X version fascia, which can mechanically match the old MPAS90 version layout with minimal adjustments in the control room. It matches the previously bespoke fitting arrangement, as well as upgrading the alarm windows to reliable energy efficient LED.

“Replacing MPAS90 with OMNI16R provides a cost-effective upgrade with minimal disruption to operations. By using the existing panel space and wiring, it saves any costly engineering reconfiguration and enables a smooth transition,” explained Ian Loudon, international sales and marketing manager at Omniflex. “These are huge facilities. These hydro plants are part of the backbone of generating power for the entire country’s energy and infrastructure. Failure is not an option.”

Omniflex provides Fit, Form and Function replacements for annunciators globally, saving companies huge amounts in engineering costs while keeping the plant safety and functionality intact to the original design.

Find out more about the importance of up-to-date alarm annunciator systems by downloading a whitepaper focused on managing power plant safety at www.omniflex.com/pub/downloads/wp/WP001ALSIL.pdf


Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Omniflex delivers ICCP systems in London
Omniflex Remote Monitoring Specialists Maintenance, Test & Measurement, Calibration
Omniflex has supplied impressed current cathodic protection systems for landmark London buildings, protecting reinforced concrete from corrosion and extending the service life of commercial, retail and heritage sites.

Read more...
Modernising acid cooler protection without disrupting production
Omniflex Remote Monitoring Specialists Maintenance, Test & Measurement, Calibration
Omniflex has supplied an advanced anodic protection control system to phosphate producer Foskor, replacing a legacy transformer rectifier system while maintaining uninterrupted production. The distributed PowerView CP solution provides remote monitoring and DCS integration.

Read more...
Upgrading alarm systems for critical industries
Omniflex Remote Monitoring Specialists PLCs, DCSs & Controllers
Omniflex’s OMNI16R alarm annunciator platform provides a direct replacement for legacy CSA systems such as MPAS 90 and SA9100, enabling operators in oil and gas, nuclear and power generation to modernise alarm infrastructure without sacrificing the clarity required for safe operations.

Read more...
Rethinking corrosion protection in process plants
Omniflex Remote Monitoring Specialists Maintenance, Test & Measurement, Calibration
Remote monitoring is changing how cathodic and anodic protection systems are managed in process plants, giving operators continuous visibility of corrosion protection performance and enabling more proactive maintenance decisions.

Read more...
Rethinking corrosion protection in process plants
Omniflex Remote Monitoring Specialists Maintenance, Test & Measurement, Calibration
Omniflex explains how integrating remote monitoring and cloud-based platforms into cathodic and anodic protection systems is helping process plant operators stay ahead of corrosion and make smarter maintenance decisions.

Read more...
Meeting the demands of modern logistics
Industrial Wireless
When Jungheinrich set out to pack more storage into less warehouse space, its high-density PowerCube shuttles needed wireless links that never drop. This is how the intralogistics specialist worked with HMS Networks to keep its shuttles moving safely, and it points to where the partnership goes next.

Read more...
Preserving a French heritage landmark
Omniflex Remote Monitoring Specialists Maintenance, Test & Measurement, Calibration
Omniflex supplied a remotely monitored impressed current cathodic protection system for the Perret Tower in Grenoble, a protected French heritage site, combining 24/7 corrosion protection with integrated surge protection against lightning strikes.

Read more...
Lessons in long-distance telemetry
Omniflex Remote Monitoring Specialists Industrial Wireless Data Acquisition & Telemetry
Key engineering lessons from decades of deploying wireless telemetry systems in demanding industrial applications, covering network management, power constraints, physical challenges and the value of open, simplified architectures.

Read more...
Long-distance signal delivery is critical to rail safety
Omniflex Remote Monitoring Specialists Fieldbus & Industrial Networking
A remote monitoring specialist explains why fibre optic technology is increasingly replacing copper cabling in safety-critical railway signalling systems.

Read more...
Omniflex upgrades faulty alarms at cereal manufacturing facility
Omniflex Remote Monitoring Specialists Industrial Wireless
Legacy alarm specialist, Omniflex has delivered a direct retrofit solution for ageing MPAS 90 alarm systems at Kellanova’s Wrexham facility, replacing obsolete units with its SIL-1 rated Omni16R rack-based alarm logic, and Omni-X LED Displays.

Read more...









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.




© Technews Publishing (Pty) Ltd | All Rights Reserved