User's Manual

Specifications
Specifications and Regulatory 63
Note These guidelines may not always apply. Electromagnetic propagation is affected by
absorption and reflection from structures, objects, and people.
Philips Telemonitoring Set devices have a Radio Test button that sends a reduced
strength test radio signal to the TeleStation, which sounds an audio tone if the test
signal is successfully received. This test can be used to determine whether sources
of interference are present. These sources can be turned off or moved away to
reduce their strength and reduce interference. In addition, Philips Telemonitoring
Set devices and the TeleStation can be placed closer to each other so that the radio
transmission from the Philips Telemonitoring Set devices to the TeleStation has
less distance to travel and interfering radio signals have less effect. The radio
transmission from the Philips Telemonitoring Set devices is repeated periodically
so that an intermittent source of interference should only delay reception.
Avoiding
Static Electrical
Discharges
Static discharges to Philips Telemonitoring Set devices may cause temporary,
unusual behavior. If a static discharge causes a temporary malfunction, simply
restart the measurement.
Note During ESD verification, testing showed that Philips Telemetry set devices may be
susceptible to ESD as low as 3kV.
Electromagnetic Compatibility (M3812C, M3813B, M3813C, M3814B, and M3815B)
The electromagnetic compatibility (EMC) validation of the M3812C TeleStation,
M3813B Scale, M3813C Scale, M3814B Pulse Oximeter, and M3815B Blood
Recommended separation distances between
portable and mobile RF communications equipment
and the Philips Telemonitoring Set Devices except M3812C,
M3813B, M3813C, M3814B, M3815B
Rated Maximum
Output Power of
Transmitter (W)
Separation Distance According to Frequency
of Transmitter (m)
150 kHz to 800 MHz
d = 1.2
 P
800 MHz to 2.5 GHz
d = 2.3  P
0.01 0.1 m
0.2 m
0.1 0.4 m
0.7 m
1 1.2 m
2.3 m
10 4.0 m
7.0 m
100 12.0 m
23.0 m