7110-120-700 Rev-AB
EN
www.stryker.com
21
NOTE 1: At 80 MHz and 800MHz 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, AM and FM radio broadcast and TV broadcast cannot be predicted theoretically 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 Universal Battery Charger (REF 7110-120-000) and
Stryker F1 Universal Battery Charger (REF 7110-190-000) are used exceeds the applicable RF compliance level above,
the Universal Battery Charger (REF 7110-120-000) and Stryker F1 Universal Battery Charger (REF 7110-190-000) should
be observed to verify normal operation. If abnormal performance is observed, additional measures may be necessary,
such as re-orienting or relocating the Universal Battery Charger (REF 7110-120-000) and Stryker F1 Universal Battery
Charger (REF 7110-190-000).
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
IEC 60601-1-2 3rd Edition:
Recommended separation distances between portable and mobile RF equipment and the Universal
Battery Charger (REF 7110-120-000) and Stryker F1 Universal Battery Charger (REF 7110-190-000)
The Universal Battery Charger (REF 7110-120-000) and Stryker F1 Universal Battery Charger
(REF 7110-190-000) are intended for use in the electromagnetic environment in which radiated
RF disturbances are controlled. The customer or the user of the Universal Battery Charger (REF
7110-120-000) and Stryker F1 Universal Battery Charger (REF 7110-190-000) can help prevent
electromagnetic interference by maintaining a minimum distance between portable and mobile RF
equipment (transmitters) and the Universal Battery Charger (REF 7110-120-000) and Stryker F1
Universal Battery Charger (REF 7110-190-000) as recommended below, according to the maximum
output power of the 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
0.38
0.73
1
1.2
1.2
2.3
10
3.8
3.8
7.3
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 the maximum output
power rating of the transmitter in watts (W) according to the transmitter manufacturer.
NOTE 1: At 80 MHz and 800MHz, 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.
