Multi-Tech Systems 92U05E06800 Manual Do Utilizador

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LifeVest 4000 Patient Manual 
Electromagnetic interference 
Many common devices, including motors and electronic equipment, may produce 
electromagnetic interference, also known as EMI, that can affect the operation of 
the LifeVest device. The LifeVest device has been tested with a number of 
common sources of such interference, including cellular telephones, airport 
security systems, and anti-theft detection systems. This testing, along with 
clinical trial testing, has demonstrated that in everyday use the LifeVest device is 
not normally affected by commonly encountered electromagnetic interference. 
Anti-theft detection systems, also known as electronic article surveillance 
systems, are often used in department stores and libraries to prevent theft by 
electronically sensing a special tag on a piece of merchandise when the tag 
passes through a detector gate. In the USA, these detector gates are commonly 
located near the doorways. In Europe, the detector gates may be positioned near 
the checkout areas. 
To prevent possible interference with the LifeVest device, follow these simple 
guidelines when passing through airport security gates or anti-theft detection 
gates: 
y
  Walk through the gate at a normal pace. 
y
  Avoid lingering near or leaning on the gate. 
In some occupational and hospital environments, unusually high levels of 
electromagnetic interference may be encountered. Examples of possible sources 
of such interference include: communication equipment such as microwave 
transmitters, arc welding equipment, high voltage transmission lines, 
electrocautery systems, and electronic muscle stimulators. These environments 
should be avoided while wearing the LifeVest device. 
In the unlikely event that electromagnetic interference causes you to receive 
arrhythmia alarms, hold the response buttons to prevent being shocked and 
move away from the source of the interference. The LifeVest device should 
return to normal monitoring mode in approximately 5 seconds. 
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