Instruction Manual

AH-TX Series Handheld Pulse Oximeter Instruction Manual
53
NOTE 1 At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE 2 These guidelines may not apply in all situations.
Electromagnetic propagation is affected by absorption and reflection from
structures, objects and people.
a. Field strengths from fixed transmitters, such as base stations for radio
(cellular/cordless) telephones and land mobile radios, amateur radio, A
M
a
nd FM radio broadcast and TV broadcast cannot be predicte
d
t
heoretically with accuracy. To assess the electromagnetic environment
due to fixed RF transmitters, an electromagnetic site survey should be
considered. If the measured field strength in the location in which the
device is used exceeds the applicable RF compliance level above, th
e
de
vice should be observed to verify normal operation. If abnormal
performance is observed, additional measures may be necessary, such as
reorienting or relocating the device.
b. Over the frequency range 150 kHz to 80 MHz, field strengths should
be less than 3 V/m.
Recommended Separation Distances between Portable and Mobile RF
Communications Equipment and the SL-F SL Series Anti-decubitus
Mattress
The device is intended for use in an electromagnetic environment in which
radiated RF disturbances are controlled. The customer or the user of the
device can help prevent electromagnetic interference by maintaining a
minimum distance between portable and mobile RF communications
equipment (transmitters) and the device as recommended below, according
to the maximum output power of the communications equipment.
Rated maximum Separation distance according to frequency of