Instrumentation loop problems are time-consuming affairs for plant maintenance staff to deal with.
Most problems relate to isolation and ground faults, some of which present themselves intermittently or are hidden so deep in the plant wiring that tracing them becomes a full-time job.
Omniflex's Omniterm range of DIN rail-mount loop isolators use advanced electronic techniques to address the common problems associated with instrumentation loops using several specialised new products:
* LPI loop isolator.
* LPx loop isolator.
* LPR loop repeater.
* LPS loop splitter.
The Omniterm LPI and LPX are current repeaters specifically designed to isolate instrument current loops from circulating ground currents that can cause system inaccuracies, or at worst, instrument failure. The current applied to the input is repeated on the isolated output, and the load present on the output is reflected back to the input. No separate power source is required.
These second-generation products utilise advanced electronic techniques to achieve high accuracy with minimum loop losses and zero field calibration.
The LPI is optimised for lowest volt drop over 4-20 mA, while the LPX is optimised for use with an extended current range from 0-50 mA and load impedances down to zero ohms.
The Omniterm LPR current loop repeater and Omniterm LPS current loop splitter products are specifically designed to create additional current loop signals from an existing current loop signal with minimal effect on the impedance of the existing loop.
The LPR has a single isolated output while the LPS has two isolated outputs.
These 24 V d.c. powered modules accept a 0-20 or 4-20 mA input and create 0-20 or 4-20 mA outputs. The output current loops repeat the input signal and are isolated from the input signal and 24 V d.c. power supply. Impedance changes on the output loops have no effect on the input loop. The module input is fully differential allowing the input to be connected anywhere in the input loop.
Waste To Energy thermal technologies DirectLogic Automation
Electrical Power & Protection
The vast quantities of waste produced around the world are a large and growing problem. Waste to Energy technology based on pyrolysis is a solution.
Read more...New enhanced Breaker Status and Communication Module Schneider Electric South Africa
Electrical Power & Protection
Schneider Electric has launched its new Breaker Status and Communication Module (BSCM) Modbus SL/ULP, which delivers enhanced performance, improved connectivity and simplified integration for power distribution systems.
Read more...Building green industries to scale green economies
Electrical Power & Protection
Africa is taking bold steps to build green industries across the continent. Namibia is a trailblazer in the hydrogen space, with up to five Final Investment Decisions scheduled to be made in 2025/2026 and is pioneering a world first for green industrialisation.
Read more...Easing the path for IPPs navigating South Africa’s energy regulations
Electrical Power & Protection
Independent Power Producers and developers venturing into South Africa’s renewable energy sector face a challenging regulatory landscape. SPS is a renewable energy asset management company that is actively expanding into the energy trading and wheeling market, which will enable businesses to buy and sell energy directly
Read more...How energy storage will make or break SA’s renewable transition
Electrical Power & Protection
Energy storage is no longer an add-on, but the foundation of a reliable, resilient and renewable energy system. As South Africa accelerates towards a greener future, storage innovation could determine the difference between progress and paralysis.
Read more...Condition-based maintenance can revolutionise business continuity Schneider Electric South Africa
Electrical Power & Protection
As businesses experience growing pressure to enhance operational efficiency and reduce downtime due to electrical failure, condition-based maintenance becomes essential for preventing unforeseen equipment breakdowns by assessing the real-time health of electrical systems.
Read more...Improved networking technology for fire and gas detection Omniflex Remote Monitoring Specialists
Fieldbus & Industrial Networking
Critical alarm and event management technology supplier, Omniflex has worked with the South African Nuclear Energy Corporation to upgrade equipment providing digital and analogue signals for its safety critical fire and gas alarm systems.
Read more...Boiler selection for optimal thermal energy performance
Electrical Power & Protection
The changing world of boilers means companies wishing to improve their thermal energy efficiencies while containing costs and environmental impacts must make careful and informed decisions. AES’s rich pool of experience, ability to keep pace with new steam trends and technologies, and understanding of their clients’ production processes can assist clients to weigh up different options in a careful and informed manner.
Read more...Securing Africa’s energy future starts at home ACTOM Electrical Machines
Electrical Power & Protection
Africa’s energy demands are surging, but the current reliance on imported solar technology leaves the continent vulnerable. This is why the prospect of building inverters and lithium batteries locally, designed for South Africa’s specific needs, is so promising.
Read more...Dry-type transformers for Dutch intake substation
Electrical Power & Protection
A data centre in the Netherlands is the site of a recent innovation on the transformer landscape, where TMC Transformers has designed, manufactured and installed dry-type transformers in a large intake substation.
printer friendly version