Zeiss Humphrey II-i series - Accessory Equipment

Recommended separation distances between portable and mobile RF communications equipment and the
HFA II
-i
The HFA II-i is intended for use in an electromagnetic environment in which radiated RF disturbances are
controlled. The customer or the user of the HFA II-i can help prevent electromagnetic interference by maintaining
a minimum distance between portable and mobile RF communications equipment (transmitters) and the HFA II-i
as recommended below, according to the maximum output power of the communications equipment.
Rated maximum output
power of transmit
ter
W
Separation distance according to frequency of transmitter
m
150 kHz to 80 MHz 80 MHz to 800 MHz 800 MHz to 2,5 GHz
d = 1.17
P
d = 1.17
P
d = 2.33
P
0,01 0.117 0.117 0.233
0,1 0.370 0.370 0.737
1 1.170 1.170 2.330
10 3.700 3.700 7. 3 6 8
100 11.700 11.700 23.300
For transmitters rated at a maximum output power not listed above, the r
e
commended separation distance d in
metres (m) can be estimated using the equation applicable to the frequency of the transmitter, where P is the
maximum output power rating of the transmitter in watts (W) according to the transmitter manufacturer.
Note 1: At 80 MHz and 800 MHz, the higher frequency applies.
Note 2: These guidelines may not apply in all situations. Electr
omag
netic propagation is affected by absorption
and reflection from structures, objects and people.
Introduction & Instrument Setup
Humphrey Field Analyzer II- i series User Manual 2660021145640 A
1-16
Accessory Equipment
WARNING: Accessory equipment connected to the analog and digital interfaces must
be certified according to the respective IEC standards (e.g., IEC 60950 for data
processing equipment and IEC 60601-1 for medical equipment). Furthermore, all
configurations shall continue to comply with the applicable system requirements of
IEC 60601-1 standard. Any person who connects additional equipment to the signal
input part or signal output part configures a medical system, and is therefore
responsible for ensuring that the complete system complies with the applicable
system requirement of IEC 60601-1 standard. If in doubt, consult the technical service
department or your local representative.