Technical Description - Nissei WS-1300 Instruction Manual

TECHNICAL DESCRIPTION

WS-1300 complies with the EMC, electromagnetic compatibility, standard, IEC60601-1-2. Refer to the tables below for specific information regarding compliance to the standard.
WS-1300, as a medical electrical equipment, needs special precautions regarding EMC and needs to be installed and put into service according to the EMC information provided below.
Portable and mobile RF communications equipments can affect the device.
The use of accessories other than those specified in this manual may result in increased emissions or decreased immunity of the device.
WS-1300 should not be used adjacent to or stacked with other equipment.
Table 201 - Guidance and manufacturer's declaration - electromagnetic emissions -
WS-1300 is intended for use in the electromagnetic environment specified below. The customer or the user of WS-1300 should
assure that it is used in such an environment.
Emissions test Compliance Electromagnetic environment - guidance
RF emissions CISPR 11 Group 1 WS-1300 uses RF energy only for its internal function. Therefore, its RF
emissions are very low and are not likely to cause any interference in nearby
electronic equipment.
RF emissions CISPR 11 Class B WS-1300 is suitable for use in all establishments, including domestic
establishments and those directly connected to the public low-voltage power
Harmonic emissions IEC 61000-3-2 N/A
supply network that supplies buildings used for domestic purposes.
Voltage fluctuations / flicker N/A
emissions IEC 61000-3-3
Table 204 - Guidance and manufacturer's declaration - electromagnetic immunity -
WS-1300 is intended for use in the electromagnetic environment specified below. The customer or the user of WS-1300 should
assure that it is used in such an environment.
Immunity test IEC 60601 test level Compliance level
Conducted RF 3 Vrms N/A
IEC 61000-4-6 150 kHz to 80 MHz
Radiated RF 3 V/m
IEC 61000-4-3 80 MHz to 2,5 GHz 3 V/m
NOTE1 At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection
from structures, objects and people.
a Field strength from fixed transmitters, such as base stations for radio (cellular/cordless) telephones and land mobile radios, amateur
radio, AM and FM radios 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 WS-1300 is used exceeds the applicable RF compliance level above, WS-1300 should be observed to verify normal
operation. If abnormal performance is observed, additional measures may be necessary, such as reorienting or relocating WS-1300.
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than [V
b
Electromagnetic environment - guidance
Portable and mobile RF communications equipment should be used no closer
to any part of WS-1300, including cables, than the recommended separation
distance calculated from the equation applicable to the frequency of the transmitter.
Recommended separation distance
N/A
d=1.2√P, 80 MHz to 800 MHz d=1.2√P, 800 MHz to 2,5 GHz
Where P is the maximum output power rating of the transmitter in watts
(W) according to the transmitter manufacturer and d is the recommended
separation distance in metres (m).
Field strengths from fixed RF transmitters, as determined by an electromagnetic
site survey, a should be less than the compliance level in each frequency range.
Interference may occur in the vicinity of equipment marked with the
following symbol:
] V/m.
1
Table 202 - Guidance and manufacturer's declaration - electromagnetic immunity -
WS-1300 is intended for use in the electromagnetic environment specified below. The customer or the user of WS-1300 should
assure that it is used in such an environment.
Immunity test IEC 60601 test level
Electrostatic discharge ±6 kV contact
(ESD) IEC 61000-4-2 ±8 kV air
Electrical fast transient/ ±2 kV for power supply lines
burst IEC 61000-4-4 ±1 kV for input/ output lines
Surge IEC 61000-4-5 ±1 kV differential mode
±2 kV common mode
Voltage dips, short <5% U (>95% dip in U
T
interruptions and voltage 40% U (60% dip in U
T
variations on power supply 70% U (30% dip in U
T
input lines IEC 61000-4-11 <5% U (>95% dip in U
T
Power frequency (50/60 3 A/m
Hz) magnetic field IEC
61000-4-8
NOTE U is the a.c. mains voltage prior to application of the test level.
T
Table 206 - Recommended separation distances between portable and mobile RF communications equipment and WS-1300 -
WS-1300 is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled. The customer
or the user of WS-1300 can help prevent electromagnetic interference by maintaining a minimum distance between portable
and mobile RF communications equipment (transmitters) and WS-1300 as recommended below, according to the maximum
output power of the communications equipment.
Rated maximum output Separation distance according to frequency of transmitter
b
power of transmitter, W 150 kHz to 80 MHz, N/A
0,01 N/A
0,1 N/A
1 N/A
10 N/A
100
N/A
For transmitters rated at a maximum output power not listed above, the recommended 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.
NOTE1 At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.
NOTE2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection
from structures, objects and people.
-19-
Compliance level Electromagnetic environment - guidance
N/A Floors should be wood, concrete or ceramic
tile. If floors are covered with synthetic material,
the relative humidity should be at least 30 %.
N/A N/A
N/A N/A
) for 0,5 cycle N/A N/A
T
) for 5 cycles
T
) for 25 cycles
T
) for 5 sec
T
3 A/m Power frequency magnetic fields should be at
levels characteristic of a typical location in a
typical commercial or hospital environment.
m
80 MHz to 800 MHz, d=1.2√P 800 MHz to 2,5 GHz, d=1.2√P
0,12
0,38
1,2
3,8
12
0,23
0,73
2,3
7,3
23