59
Operating Instructions TNI
®
20s oxy Version 2.7
Version 1.6.3 July 2010
12 Electromagnetic Compatibility (EMC)
Guidelines and Manufacturer‘s Declaration - Electromagnetic Emission
The TNI
®
device is designed for operation in an electromagnetic environment
specified below. The customer or the user of TNI
®
device should ensure that the unit
is operated in such an environment.
Interference
immunity
tests
IEC 60601
test levels
Compliance
levels
Electromagnetic environment -
guidelines
Conducted
HF
interference
under IEC
61000-4-6
Radiated HF
interference
under IEC
61000-4-3
3 V
eff
150 kHz -
80 MHz
3 V/m
80 MHz -
2,5 GHz
3 V
eff
150 kHz - 80
MHz
3 V/m
80 MHz - 2,5
GHz
Portable and mobile radio units should
not be used at a distance to the TNI
®
device including its leads and cables
smaller than the recommended safe
clearance. The safe clearance is
calculated according to the following
equation for the corresponding radio
frequency.
Recommended safe clearance:
d = 1,17 1/V *
P
d = 1,17 m/V * P
for 80 MHz - 800
MHz
d = 2,33 m/V * P
for 800 MHz - 2, 5
GHz
With
P
as rated output of the transmitter
in Watt (W) as specified by the
manufacturer of the transmitter and
d
as
recommended safe clearance in meters
(m). The field strength of stationary
radio transmitters should be lower in
all frequencies according to an on-site
investigation
a
than the compliance
level.
b
Interference may be expected
in the vicinity of appliances
and devices carrying the
following image symbol.
NOTE 1 The higher frequency range applies to 80 MHz and 800 MHz.
NOTE 2 These guidelines may not be applicable in all instances. The spread of
electromagnetic variables is influenced by absorption and reflection from buildings,
objects and people.
a The field strength of stationary transmitters such as base stations of radio telephones
and mobile land-based mobile radio transmitters, citizen band radios, AM and FM radio and
TV transmitters cannot be determined with ultimate theoretical accuracy. To determine the
electromagnetic environment in terms of stationary transmitters, an on-site investigation should
be considered. If the field strength measured at the location where the TNI
®
device is used
exceeds the above compliance levels, the TNI
®
device should be observed to provide evidence
of proper function. If unusual performance features are observed, additional measures may be
required, e.g. changing the orientation or the location of the TNI
®
device.
b Over the frequency range 150 kHz - 80 MHz the field strength should be smaller than 3 V/m.
