Analog signal conditioner - deviation control/monitoring
June 2004System Integration & Control Systems Design
The Omniterm Universal Special Function Module suitable for special applications where mathematical computations are required on analog signals. The TFX accepts two 1 to 5 V or 4 to 20 mA inputs and provides one universal output. The device comes equipped with a wide selection of common mathematical functions.
Deviation monitoring
Many plant-monitoring systems require deviation monitoring and/or control of flow, temperature, pressure, vibration - amongst other process variables. In deviation monitoring the difference between the signals is the important issue and the level of the signal of lesser importance to the process. Sometimes the absolute difference is required, ie, output is positive irrespective of whether Input B is greater than A or visa-versa. A bi-polar output may also be required for control, ie, -10 mA to + 10 mA or as a voltage. The TFx caters for all these options with its universal output, which the user can range using Windows, based configuration tools and an RS232 programming cable.
A user configurable 32-point linearisation table enables TFx to solve a wide range of signal processing applications such as belt slip monitoring, dual-redundant analog inputs, ratio monitoring, rate-of-change monitoring etc.
The TFX Features include:
* Select from a wide range of computation functions.
* Fully configurable by the user.
* Accepts two 4 to 20 mA or 1 to 5 V d.c. inputs.
* One universal 0 to 20 mA/0 to +10 V/0 to +10 mA or;
* Output isolation to 1,5 kV a.c.
Cost effective: low set up costs
The TFX is not limited to deviation monitoring and is packed with options catering for a plethora of applications making it cost effective for signal conditioning applications where small numbers of signals are concerned. With one unit covering so many applications spares holding is minimised and plant up time optimised with configuration saved and downloaded via the RS232 programming port.
Transfer functions include:
* Integration (pulse output).
* Square root integration.
* Hi/lo follower.
* Multiply/divide or ratio.
* Deviation monitoring - absolute value.
* Average value.
* Linearisation (square root, log 10, Ln, Sin, Cos).
* Rate function - ramp limiter and rate of change.
* Track functions - track and hold, peak and valley.
Configuration management
The powerful but intuitive configuration software ensures the maximum instrument flexibility with reliable configuration management to ensure all instruments on the plant are always correctly configured to the design requirements specification.
For more information contact Ian Loudon, Omniflex Automation Products, 031 207 7466.
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...Why integration defines the next competitive edge in pulp and paper
System Integration & Control Systems Design
ABB’s Arvin Ramjee argues that fragmented automation, assembled from different suppliers at different stages of a plant’s lifecycle has become one of the pulp and paper industry’s most overlooked commercial risks, and that true integration, rather than surface-level connectivity, is what delivers measurable business value.
Read more...Integrated automation enhances water treatment at dairy facility Process Dynamics
System Integration & Control Systems Design
Process Dynamics delivered the electrical, instrumentation, control and automation integration for an advanced water treatment and reverse osmosis system at a major South African dairy processing facility, achieving a 50% reduction in the client’s water utility costs.
Read more...Intelligent process control is reshaping cement production in Africa
System Integration & Control Systems Design
Advanced process control, predictive analytics and automation are helping African cement producers cut energy use and stabilise output as they contend with rising electricity costs and tighter margins.
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...Process Dynamics – Integrated Automation for Dairy Water Treatment Process Dynamics
System Integration & Control Systems Design Project and industry
Process Dynamics delivered the electrical, instrumentation, control and automation integration for an advanced water treatment and Reverse Osmosis (RO) system at one of South Africa’s ...
Read more...New SI programme strengthens Schneider Electric’s partner ecosystem Schneider Electric South Africa
System Integration & Control Systems Design
Schneider Electric’s SI Energise 2.0 programme offers system integrators a competency-based framework to develop deeper expertise in EcoStruxure and AVEVA software, enabling them to deliver full-lifecycle industrial automation solutions.
Read more...AI and smart solutions for underground proximity detection systems
System Integration & Control Systems Design
Booyco Electronics explains why fitting proximity detection systems underground is far more complex than installing sensors, and how integration, data and intelligent analytics are helping mines manage the challenge.
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.
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