November 2001Maintenance, Test & Measurement, Calibration
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 new 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.
Keeping lifting equipment safe and securely on track
Maintenance, Test & Measurement, Calibration
In the hustle and bustle of mining production, the focus on the servicing of lifting equipment can unintentionally be sidelined. This situation can easily be avoided with a customised Konecranes Service Agreement that offers a comprehensive and systematic approach to asset management.
Read more...Tablet oscilloscope Vepac Electronics
Maintenance, Test & Measurement, Calibration
The PeakTech 1212 is a new, innovative oscilloscope designed to resemble a standard tablet in size and form. This tablet oscilloscope allows users to record any common measurement quantity and type, just like a desktop oscilloscope.
Read more...Powerful test controller
Maintenance, Test & Measurement, Calibration
XJTAG is launching the XJLink-PF20, brings the same dependability and robustness to a new 4-TAP two-port configuration, and offering both functional and JTAG boundary scan testing with the XJTAG testing suite’s long-established power and control.
Read more...Remote water monitoring Omniflex Remote Monitoring Specialists
Industrial Wireless
Remote monitoring specialist, Omniflex has helped New South Wales Ports improve its ability to track water usage by installing remote monitoring to 38 water meters at its Port Kembla site, sending the data to the NSWPorts web portal.
Read more...Multichannel AWGs for GHz signal generation Vepac Electronics
Maintenance, Test & Measurement, Calibration
Spectrum Instrumentation has introduced its new flagship Arbitrary Waveform Generators from the company’s Netbox series, an easy-to-use instrument line that can be controlled via an Ethernet cable from any PC or network.
Read more...Control and information overlay for nuclear plants Omniflex Remote Monitoring Specialists
Industrial Wireless
Radiation monitoring specialist Omniflex has supported a major UK nuclear plant operator through a critical phase of its decommissioning programme, ensuring continuous safety and security monitoring as buildings were progressively de-manned.
Read more...Upgrading an outdated alarm monitoring system Omniflex Remote Monitoring Specialists
Industrial Wireless
Legacy alarm replacement specialist, Omniflex has successfully upgraded Guernsey Electricity’s MPAS90 alarm annunciator systems, which were first installed decades ago and are obsolete.
Read more...Cathodic protection design considerations that influence ESG outcomes Omniflex Remote Monitoring Specialists
Electrical Power & Protection
Major infrastructure like wharves, bridges, pipelines and tanks are at constant risk of corrosion. David Celine, managing director of cathodic protection specialist Omniflex, explains how CP system design can support ESG commitments, while simultaneously lowering costs and improving maintenance capabilities.
Read more...The smart choice for test and measurement solutions RS South Africa
Maintenance, Test & Measurement, Calibration
As the demand for precision and efficiency continues to grow across industries, RS PRO, the own brand of RS, provides a complete portfolio of test and measurement equipment engineered to meet the highest standards of performance, safety and value.
Read more...Upgrading obsolete rack-based alarms Omniflex Remote Monitoring Specialists
Industrial Wireless
Legacy alarm replacement specialist, Omniflex has supported a major oil and gas company in Qatar by upgrading the obsolete MPAS 90 alarm systems at one of its major plants in the country.
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