Maico MA 2 Series, Operation Manual

Page: 35 / 39

Operation Manual MA 25/MA 25e
MA 27/MA 27e
8104818 Rev. 4 34 19/10/2017
6.5 Electromagnetic Compatibility (EMC)
Portable and mobile RF communications equipment can affect the MA 25/MA 25e/MA 27/MA 27e. Install and operate the MA 25/MA
25e/MA 27/MA 27eaccording to the EMC information presented in this section.
The MA 25/MA 25e/MA 27/MA 27ehas been tested for EMC emissions and immunity as a standalone MA 25/MA 25e/MA 27/MA 27e. Do
not use the MA 25/MA 25e/MA 27/MA 27eadjacent to or stacked with other electronic equipment. If adjacent or stacked use is
necessary, the user should verify normal operation in the configuration.
The use of accessories, transducers and cables other than those specified, with the exception of servicing parts sold by Interacoustics
as replacement parts for internal components, may result in increased EMISSIONS or decreased IMMUNITY of the device.
Anyone connecting additional equipment is responsible for making sure the system complies with the IEC 60601-1-2 standard.
EUT Support Equipment and Cables*
Item Manufacturer Model
Cable SIP/SOP
Serial
no.
Length
[meter] Screened
[Y/N]
Socket ID Type
Audiometric Headset Radioear DD45 2.0 Y
Phones
L and R Headset
output
-
Patient response switch MAICO APS3 2.9 Y
Patient
Resp.
DC level -
Power Supply Fuhua
UE24WCP-
050250SPA
1.5 N USB/DC-in DC level -
*To ensure compliance with the EMC requirements as specified in IEC 60601-1-2, iT is essential to use only the follow.
Guidance and manufacturer’s declaration - electromagnetic emissions
The MA 25/MA 25e/MA 27/MA 27e is intended for use in the electromagnetic environment specified below. The customer or
the user of the MA 25/MA 25e/MA 27/MA 27e should assure that it is used in such an environment.
Emissions Test
Compliance Electromagnetic environment - guidance
RF emissions
CISPR 11 Group 1 The MA 25/MA 25e/MA 27/MA 27e 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 The MA 25/MA 25e/MA 27/MA 27e is suitable for use in all
commercial, industrial, business, and residential environments.
Harmonic emissions
IEC 61000-3-2 Complies
Class A Category
Voltage fluctuations /
flicker emissions
IEC 61000-3-3 Complies
Recommended separation distances between portable and mobile RF communications equipment and the MA 25/MA
25e/MA 27/MA 27e.
The MA 25/MA 25e/MA 27/MA 27e is intended for use in an electromagnetic environment in which radiated RF disturbances are
controlled. The customer or the user of the MA 25/MA 25e/MA 27/MA 27e can help prevent electromagnetic interferences by
maintaining a minimum distance between portable and mobile RF communications equipment (transmitters) and the MA 25/MA
25e/MA 27/MA 27e 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 80 MHz
d = 1.17 √𝑃
80 MHz to 800 MHz
d = 1.17 √𝑃
800 MHz to 2.5 GHz
d = 2.23 √𝑃
0.01
0.12 0.12 0.23
0.1 0.37 0.37 0.74
1 1.17 1.17 2.33
10 3.70 3.70 7.37
100 11.70 11.70 23.30
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 800 MHZ, the higher frequency range applies.
Note 2 These guidelines may not apply to all situations. Electromagnetic propagation is affected by absorption and reflection from
structures, objects and people.
Guidance and Manufacturer’s Declaration - Electromagnetic Immunity
The MA 25/MA 25e/MA 27/MA 27eis intended for use in the electromagnetic environment specified below. The customer or the user
of the
Device should assure that it is used in such an environment.
Immunity Test IEC 60601 Test
level Compliance Electromagnetic
Environment-Guidance
Electrostatic Discharge
(ESD)
IEC 61000-4-2 +6 kV contact
+8 kV air +6 kV contact
+8 kV air Floors should be wood, concrete or
ceramic tile. If floors are covered with
synthetic material, the relative
humidity should be greater than 30%.
Electrical fast
transient/burst
IEC61000-4-4 +2 kV for power supply lines
+1 kV for input/output lines +2 kV for power supply lines
+1 kV for input/output lines
Power supply quality should be that of
a typical commercial or residential
environment.