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Railroad Preventative Maintenance

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Railroad Preventative Maintenance
Railroad Preventative Maintenance
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(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.)

CAS DataLoggers
12628 Chillicothe Rd., Unit J
Chesterland, OH, 44026

Press release date: March 16, 2011

Monitoring Wheel Temperature to Prevent Damage and Reduce Maintenance Costs.

CHESTERLAND, OH - An Alaskan railroad company had been experiencing problems stemming from vibration in the railroad car wheels. They were aware that when too much heat developed during braking, the wheels could seize and subsequently develop flat spots. Flat spots resulted in vibration; an undesirable condition leading to additional maintenance issues involving their railroad car wheels. The challenge for the staff was to determine how these excessive heat conditions developed as a result of braking over time and the duration of a trip.

When considering a solution, they had several factors to take into account. They would need a data logger capable of recording data over a minimum of 12 hours at 5 second intervals. If the test was to be used on another route, they could very well require significantly more memory capacity than the approximately 8,400 readings required for this particular test.

Another factor was that a simple, dedicated temperature data logger would not be up to the task. A more robust, universal data logger capable of multiple inputs from various sensors would be needed to handle the different possibilities and conditions. The basic temperature measurement for this test would have to be accomplished using some sort of non-contact sensors. Also, the data would have to be easily accessible at the end of the trip for quick and easy analysis on a laptop or PC.

Finally, any solution would have to be capable of withstanding the Alaskan environment, the physical punishment of shocks, bumps and vibrations of the rail route and the overall extreme conditions of the test.

The solution was to bundle multiple sensors including non-contact infrared sensors for multiple wheel temperatures, sensors for ambient temperature and other environmental conditions with the dataTaker DT80 Universal Intelligent Data Logger. Given its capacity of more than 10 million recoded readings, the DT80 was capable of handling any number of sensors and any length trip that might be required in the future. Given the universal input capability of the DT80, any combination of digital, 0-5V or 4-20mA signal from various sensors was easily accommodated. The DT80 was powered with an internal and external backup battery to prevent any interruption of the test.

The DT80 can communicate via Ethernet, Serial or USB. In this application, a USB Flash Drive was used to immediately transfer the data at the end of the trip. Data was uploaded to a PC with the dEX software installed for analysis.

For more information on the DT80 Universal Intelligent Data Logger or any other CAS Data Logger product contact a Solution Analysts at (800)-956-4437 for recommendations specific to your application or visit our website at:

Contact Information: CAS DataLoggers, Inc. 12628 Chillicothe Road Chesterland, Ohio 44026 (440) 729-2570 (800) 956-4437
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