September 2001Maintenance, Test & Measurement, Calibration
The 845G Allen-Bradley single-turn absolute encoder digitises shaft position for reliable readouts under harsh conditions. Absolute encoders provide a unique digital output through the complete range of shaft positions as opposed to incremental encoders, which require an established 'reference point' to define position. One of the chief advantages of absolute encoders is that in case of a power interruption - planned or unplanned - the encoder's position is maintained. There is no need to re-establish a reference point before resuming operation.
As an added convenience, the 845G incorporates a zero set pin. Most absolute encoders must be de-coupled from the monitored shaft to synchronise the electrical and mechanical zero or home positions. The 845G can be set to zero by connecting DC+ to the zero set pin.
* Zero set pin for easy shaft alignment.
* Absolute grey code or natural binary output.
* 8 to 15 bit resolution (256 to 32 768 counts per revolution).
* Open collector, TTL, push-pull or SSI outputs.
* Low or high true output optional.
* Reverse polarity protection.
* 5 to 26 V d.c. power supply.
* 0 to 70°C operating temperature.
* Accuracy of ±1 bit
* Field-selectable direction control (CW or CCW) for increasing counts.
Infrared thermometers for electrical, industrial and HVAC applications Comtest
Maintenance, Test & Measurement, Calibration
: Comtest, distributor of Fluke test and measurement equipment, explains how handheld infrared thermometers are transforming maintenance in electrical, industrial and HVAC environments, with three measurement strategies and a wide range of practical applications.
Read more...Reverse-engineering legacy industrial gearbox parts
Maintenance, Test & Measurement, Calibration
WEG Africa’s turbine workshop uses 3D scanning technology to reverse-engineer components for legacy gearboxes, turbines and compressors, enabling equipment to run for decades after OEM support and spare parts have dried up.
Read more...Unlocking ICCP remote monitoring Omniflex Remote Monitoring Specialists
Maintenance, Test & Measurement, Calibration
Cathodic protection keeps buried and submerged pipelines safe from corrosion, but verifying it traditionally means costly, hazardous manual site visits. Omniflex explains how a retrofit module brings remote monitoring to ageing transformer rectifiers without replacing functional infrastructure.
Read more...Microdieseling – the explosions you never hear
Maintenance, Test & Measurement, Calibration
Microdieseling is a pressure-induced thermal degradation mechanism in which entrained air bubbles are compressed so rapidly that the surrounding oil ignites, producing soot, varnish and sludge. WearCheck explains how it happens, why the damage varies, and how oil analysis detects it.
Read more...Robotic case packer achieves 99% uptime Rockwell Automation
Motion Control & Drives
DCC Automation designed a new robotic case packer for a nutrition supplement manufacturer using delta robots and a unified Rockwell Automation control platform, cutting changeover time from 45 minutes to 5 minutes, and achieving 99 to 99,5% uptime against the previous 10% per-shift downtime.
Read more...How sustainability unlocks real business impact Rockwell Automation
IT in Manufacturing
Sustainability has moved from a compliance obligation to a strategic driver of resilience and value for manufacturers. Rockwell Automation explains how its Triple A framework and connected-data approach help producers cut energy, water and waste while improving productivity.
Read more...Electrostatic spark discharge – when static strikes back Wearcheck
Maintenance, Test & Measurement, Calibration
WearCheck technical manager, Steven Lumley explains how static electricity accumulates in modern low-conductivity lubricants, why compact system designs and fine filtration make ESD more likely, and how to recognise the degradation it leaves behind.
Read more...How BIC overcame operational silos to integrate technology and people Rockwell Automation
IT in Manufacturing
Manufacturing giant BIC deployed Plex MES from Rockwell Automation at its Bizerte plant in Tunisia, replacing fragmented, partly in-house software with a single cloud-based execution system that broke operational silos and improved shop-floor visibility.
Read more...High-speed cameras for crash testing Horne Technologies
Maintenance, Test & Measurement, Calibration
Vision Research has expanded its Phantom C-series with two cameras optimised for crash and safety testing, offering 4 and 8 megapixel sensors rated to 170G, up to 1180 frames per second, and Phantom Academy application training planned for South Africa next year.
Read more...SKF extends remanufacturing expertise to bearing clearance modification SKF South Africa
Maintenance, Test & Measurement, Calibration
Using its clearance modification expertise, SKF helped a mining equipment OEM salvage spherical roller bearing inventory that would otherwise have been scrapped, confirming a new capability within its remanufacturing services and avoiding redundant procurement.
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