Keeler Pulsair IntelliPuff, Инструкция по эксплуатации, Страница: 23 / 110

19 EN
Pulsair Intellipuff Tonometer by KEELER
Note 1: At 80MHz and 800MHz, the higher frequency range applies.
Note 2: These guide lines may not apply in all situations. Electromagnetic propagation is affected by absorption and
reflection from structures, objects and people
1
Field strengths from fixed transmitters, such as base stations (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 Keeler Pulsair IntelliPuff Tonometer
is used exceeds the applicable RF compliance level above, the Keeler Pulsair IntelliPuff Tonometer should be
observed to verify normal operation. If abnormal performance is observed, additional measures may be necessary,
such as re-orientating or relocating the Keeler Pulsair IntelliPuff Tonometer.
2 Over the frequency range 150kHz to 80 MHz, field strengths should be less than 10 V/m.
16.3 RECOMMENDED SAFE DISTANCES
Recommended separation distances between portable and mobile RF
communications equipment and the Keeler IntelliPuff.
The Keeler Pulsair IntelliPuff Tonometer is intended for the use in an electromagnetic
environment in which radiated RF disturbances are controlled. The customer or the user of
the Keeler Pulsair IntelliPuff Tonometer can help prevent electromagnetic interference by
maintaining a minimum distance between portable and mobile RF communications equipment
(transmitters) and the Keeler Pulsair IntelliPuff Tonometer as recommended below, according to
the maximum output power of the communications equipment.
Rated maximum output
power of transmitter (W)
Separation distance according to frequency of
transmitter (m)
150 kHz to 230MHz
d = 1.2√ p 80MHz to 800MHz
d = 1.2√ p 800MHz to 2.7GHz
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 metres (m) can be determined 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 80MHz and 800MHz, the higher frequency range applies.
Note 2: These guide lines may not apply in all situations. Electromagnetic propagation is affected by absorption and
reflection from structures, objects and people.