Oakworks EC Series Procedure Chair - Manual (Page 15)

12
SPECIFICATIONS
Guidance and manufacturer’s declaration - electromagnetic emissions
The chair is intended for use in the electromagnetic environment specified below. The customer or the user of
the chair should assure that it is used in such an environment.
Emissions Test Compliance Electromagnetic environment - guidance
RF emissions
CISPR 11
Group 1
The chair uses RF energy only for its internal
function. Therefore, its RF emissions are very low and
are not likely to cause any interference in nearby elec-
tronic equipment.
RF emissions
CISPR 11
Class B
The chair is suitable for use in all establishments other
than domestic and those directly connected to the
public low-voltage power supply network that supplies
buildings used for domestic purposes.
Harmonic emissions
IEC 61000-3-2
Class A
Voltage fluctuations /
flicker emissions
IEC 61000-3-3
Complies
Recommended separation distances
between portable and mobile RF communications equipment and the chair
The chair is intended for use in the electromagnetic environment in which radiated RF disturbances are con-
trolled. the customer or the user of the chair can help prevent electromagnetic interference by maintaining a
minimum distance between portable and mobile RF communications equipment (transmitters) and the chair as
recommended below, according to the maximum output of the
communications equipment.
Rated maximum output
power of transmitter
W
Separation distance according to frequency of transmitter (m)
150 kHz to 80 MHz
d = 1.2 √ P
80 MHz to 800 MHz
d = 1.2 √ P
800 MHz to 2.5 GHz
d = 2.3 √ P
0.01 0.12 0.12 0.23
0.1 0.38 0.37 0.73
1 1.2 1.2 2.3
10 3.8 3.8 7.8
100 12 12 23
For transmitters rated at a maximum output power not listed above, the recommended separation distance d in
meters (m) can be estimated using the equation applicable to the frequency of the transmitter, where P is maxi-
mum output power rating of the transmitter in watts (W) according to the transmitter manufacturer. transmitter
manufacturer.
NOTE 1 At 80 MHz and 800 MHz, the separation distance for 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.