Topcon KR-1W, Instruction Manual

Page: 170 / 188

Guidance and manufacturer's declaration - electromagnetic immunity
The KR-1W is intended for use in the electromagnetic environment specified below.
The customer or the user of the KR-1W should assure that it is used in such an environment.
Immunity test IEC 60601
test level
Compliance
level
Electromagnetic environment-
guidance
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
3 Vrms
150kHz to 80MHz
3 V/m
80MHz to 2.5GHz
3 V
3 V/m
Portable and mobile RF communica-
tions equipment should be used no
closer to any part of the KR-1W,
including cables, than the recom-
mended separation distance calcu-
lated from the equation applicable to
the frequency of the transmitter.
Recommended separation distance
d
1.2 P =
d
1.2 P = 80MHz to 800MHz
d
2.3 P = 800MHz to 2.5GHz
where
P
is the maximum output
power rating of the transmitter in watts
(W) according to the transmitter man-
ufacturer and
d
is the recommended
separation distance in meters (m).
Field strengths from fixed RF trans-
mitters, as determined by an electro-
magnetic site survey,
a
should be less
than the compliance level in each fre-
quency range.
b
Interference may occur in the vicinity
of equipment marked with the follow-
ing symbol:
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, 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 KR-1W is used exceeds the applicable RF compliance level above, the KR-1W should be observed
to verify normal operation. If abnormal performance is observed, additional measures may be necessary,
such as reorienting or relocating the KR-1W.
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than [V
1
] V/m.
168
SPECIFICATIONS