Sensata WES Wheel End Sensor User Manual
- October 27, 2023
- Sensata
Table of Contents
Sensata WES Wheel End Sensor
The Wheel End Sensor (WES) is a round, puck-shaped device designed to mount on Hendrickson axle wheel ends, specifically the hub cap. This location enables the WES to sense pressure from outer and inner tires (the latter if present) between the air hoses and rotary union. WES internal temperature is measured to indicate wheel end thermal condition. Finally, an onboard accelerometer detects motion/vibration. An onboard microprocessor manages WES activity and wireless communication via Thread.
The Wheel End Sensor (WES) System is a sensing, processing, and communication system for monitoring and reporting tire and axle information. The system consists of four WES units, a Wireless Gateway Module (WGM), an optional telematics unit, and associated harnessing. The system can be used standalone without data connectivity, with a Sensata telematics unit, or integrated with third-party telematics.
The overall mission of the WES system is to collect data on trailer tire pressure, wheel end temperature, and wheel end vibration and transmit relevant data with appropriate urgency. WES units only communicate wirelessly, sending data to an associated WGM. Acting as the central manager of the system, the WGM further communicates to other systems and controls the trailer’s ATIS lamp for status notification.
Parameters
The device under test is manufactured by the grantee (Sensata Technologies) and sold as an Aftermarket product. Per 47 CFR 2.909, 2.927, 2.931, 2.1033, 15.15(b), etc…, the grantee must ensure the end-user has all applicable/ appropriate operating instructions. When end-user instructions are required, as in the case of this product, the grantee must notify the end user.
Sensata Technologies will include the contents of this document in the end user’s manual for the commercial product.
FCC STATEMENT
INFORMATION TO BE INCLUDED IN THE END USER’S MANUAL
The following information (in blue) must be included in the end product user’s
manual to ensure continued FCC and Industry Canada regulatory compliance. The
ID numbers must be included in the manual if the device label is not readily
accessible to the end user. The compliance paragraphs below must be included
in the user’s manual.
- FCC ID: 2ATIMWES
- IC: 25094-WES
This device complies with Part 15 of the FCC Rules and with Licence-exempt RSS standards of Industry Canada.
Operation is subject to the following two conditions:
- This device may not cause harmful interference, and
- This device must accept any interference received, including interference that may cause undesired operation.
Exposure to radio frequency energy
The radiated output power of this device meets the limits of FCC/ISED Canada
radio frequency exposure limits. This device should be operated with a minimum
separation distance of 20 cm (8 inches) between the equipment and a person’s
body.
WARNING:
Changes or modifications not expressively approved by the party responsible
for compliance could void the user’s authority to operate the equipment. The
term “IC:” before the radio certification number only signifies that Industry
Canada’s technical specifications were met.
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