Absolute rotary encoders in stainless steel housing
June 2004Maintenance, Test & Measurement, Calibration
Posital has enlarged its product range to include robust and compact absolute rotary encoders in stainless steel housings. Conventional rotary encoders cannot be used in applications with harsher environmental conditions, such as in the chemical, the heavy industrial or the food industry. The aluminium or sheet steel casings of these encoders risk corrosion. Posital stainless steel encoders are resilient and durable in the above-mentioned industries because of their stainless steel features.
40 MHz, 16-bit microprocessors calculate and evaluate the optically registered angular position. This suits the demand for high realtime capability and distributes the control intelligence from the master control to multiple sensors. The user can easily program most of the encoder parameters such as resolution per revolution, total resolution and preset values. Programmable encoders offer maximum flexibility and convenience.
Electrical features
Posital single-turn absolute rotary encoders have a resolution of up to 16-bit (65 536 steps); the multiturn encoder can register 12 bit (4096 revolutions) with a 28-bit total resolution.
The encoders come equipped with any one of the following interfaces: DeviceNet, CAN-bus, InterBus-S and ProfiBus, as well as the standard interfaces, such as SSI (synchronous serial interface) and Bit-parallel (push-pull).
Suitable for the food industry
Extremely high standards for corrosion resistance and hygiene are essential for the food industry. The use of aluminium is prohibited, as it might contaminate food, meat products and drinks, especially those containing lactic acid. Furthermore, aggressive chemicals used to clean containers and pumps aggravate corrosion. These complications may be avoided by using Posital stainless steel encoders.
Robust stainless steel housing for heavy industry
Higher standards are critical for motion control equipment in galvanising plants as well as steel and rolling mills. During production, aggressive gas, dust and oil taxes the encoders over time. The iron and steel industry's rough environment necessitates the use of sensors with robust stainless steel housings. Highly resistant to dust particles and water, Posital rotary encoders in weatherproof and corrosion-free, stainless steel housings meet the standards of NEMA 4 (IP65). NBR shaft seals keep out mineral oil, grease and fuel.
For more information contact Wim Annandale, ATI Systems, 016 986 2267.
Collect data three times faster SKF South Africa
Maintenance, Test & Measurement, Calibration
SKF has extended its renowned Microlog Analyzer family of data collection devices with the addition of the Microlog Analyzer dBX. Currently SKF’s most powerful diagnostic tool, this cutting-edge device redefines diagnostic capabilities, enabling users to take measurements three times faster than its predecessor.
Read more...The criticality of maintenance in the water and wastewater segment Schneider Electric South Africa
Maintenance, Test & Measurement, Calibration
In a time of water shedding, climate change and ageing infrastructure, the importance of maintenance and support in the water and wastewater segment cannot be overstated.
Read more...Quality test tools save costs at pulp and paper mill Comtest
Editor's Choice Maintenance, Test & Measurement, Calibration
A case study on how preventive maintenance and a few good test tools avoided unnecessary motor replacements at a pulp and paper company.
Read more...The logical solution to oil and gas industry corrosion
Maintenance, Test & Measurement, Calibration
The consequences of corrosion in the oil and gas industry can be astronomical. The simple culprit is metal reacting with oxygen and moisture, degrading it back to its natural state.
Read more...Lube tip: foaming is affected by oil level Wearcheck
Maintenance, Test & Measurement, Calibration
In a circulating system, it is crucial to check the oil level before introducing anti-foam agents to address a foaming problem.
Read more...Microfine filtration boosts fuel quality and reduces equipment failure
Maintenance, Test & Measurement, Calibration
The path to contamination-free fuels relies on a combined effort from refiners to transporters, storage depots, handlers and end users. Prior to use, fuels can be polished with multi-pass microfine filtration systems such as those exclusively manufactured by ISO-Reliability Partners.
Read more...Supporting capital investment in machinery
Maintenance, Test & Measurement, Calibration
Industrial and mining operations are under increased financial pressure in the current economic and social climate in South Africa. This means that when businesses make capital investments in new equipment, they need to be sure that the machinery will function optimally for as long as possible.
Read more...High-accuracy automated pressure calibrator
Maintenance, Test & Measurement, Calibration
The Additel 762 Automated Pressure Calibrator is unlike any other pressure calibrator on the market. This revolutionary product is a complete turnkey solution for automation of pressure calibration work ...
Read more...Handheld pressure calibrator
Maintenance, Test & Measurement, Calibration
The 273Ex from Additel is an intrinsically safe handheld multifunctional pressure calibrator with an intuitive colour touchscreen interface. The unit features built-in quick test tasks and optional HART ...
printer friendly version