Presentation

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Series 4292 Sensors Offer Proven Performance
The Series 4292 Wireless Sensor concept has been
validated via Fast Accelerated Life Testing
Firmware on test units was modified to change
packet transmission interval from 1 per 66s to 1 per
143ms
Test represented an acceleration factor of 462,
resulting in the sensor transmitting as many
packets in one day as a normal sensor will transmit
in 15 months
Sleep current and battery self-discharge current
were also subject to an acceleration factor of 462
Test ran continuously for approximately 21 days
Data logging in 15 minute increments confirmed the
3.5V battery slipped below 3.4V after a simulated 25
years of operation