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ATi Newsletter January 2016
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ATi would like to thank all of our customers for your business in 2015 and wish you all a happy and prosperous New Year in 2016.

ATi’s Wireless Torque Sensor Systems are utilized in applications where conventional torque transducers are not practical due to high shaft speeds, vibration, or dirty, oily environments.

The use of RF telemetry to transfer data eliminates the need for slip rings. This makes our wireless torque meter highly reliable and durable. Batteries or induction power is used to provide energy to the rotating sensor and transmitter. These technologies permit a great deal of movement between the rotating sensor and stationary loop antenna with no affect on the signal quality. Minimal alignment between the stationary and rotating components is required.

RF telemetry and induction power are also immune to dust and oil build-up, unlike infrared torque sensors which are sensitive to not only dirt build-up but shaft movements as well.

Rechargeable Battery Pack Maintenance

Many of ATi’s telemetry systems utilize a rechargeable Lithium battery pack to supply power to the telemetry transmitter. These battery packs have an internal circuit to guard the cells from over-current and over-discharge conditions which could cause permanent damage. If the battery pack voltage drops below a factory-set point, the protection circuit will internally disconnect the battery pack from the connector.

Even if the battery pack is not being used, this protection circuit is constantly monitoring voltage levels. Because this circuit draws a very small amount of quiescent current, the battery pack could be discharged to the point where the battery is disconnected. If the battery pack is not charged soon after this condition is reached, the protection circuit itself will continue to use power which could create a condition where the battery pack may no longer be able to be recharged.
 
To avoid this condition, ATi recommends that battery packs which have activated the automatic disconnect during use, be charged as soon as possible.  Battery packs that are in storage (not being used) should be routinely charged a minimum of 3-4 times per year.
 
Also, remember to balance the cells in the battery pack every 6-8 charge cycles using the 2173CB Charger Balancer that was supplied with the telemetry system. This will help ensure that you achieve maximum performance and life from these battery packs.

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