Yuwell YH-480A, User Manual

23

24

This limited warranty does not cover:

   Any damage caused as a result of improper use, abuse, modification or alteration of the product.
   Repairs carried out by any service organization that has not been expressly authorized by Yuwell to 
   perform such repairs
   Any damage caused as accident, Act of God or human factor.
   Product which is not involved in Quality warranty sheet.                                                                                                           
                                                                                                       User sign 
                                                                                                       Date 

Contact                                                                     Department                                          User   

Add.  

Diagnose  

                              Tel.

BreathCare PAP Warranty card 

Model                                                                          SN 

Invoice number 

                                purchasing date

Dealer

Feedback Couplet

1 720

1 700 – 

1 990

GSM 1800; 

CDMA 1900; 

GSM 1900; 

DECT; 

LTE Band 1, 3, 

4, 25; UMTS

Pulse 

modulation

b)

217 Hz

2 

0,3

28

1 845

1 970

2 450

2 400 – 

2 570

Bluetooth, 

WLAN, 

802.11 b/g/n, 

RFID 2450, 

LTE Band 7 

Pulse 

modulation

b)

217 Hz

2 

0,3

28

5 240

5 100 – 

5 800

WLAN 802.11 

a/n

Pulse 

modulation

b)

217 Hz

0,2

0,3

9 

5 500
5 785

NOTE If  necessary to achieve the IMMUNITY TEST LEVEL,the distance between the transmitting 

antenna and the ME EQUIPMENT  or ME SYSTEM may be reduced to 1 m. The 1 m test 
distance is permitted by IEC 61000-4-3.   

a)

For some services, only the uplink frequencies are included.

b)

The carrier shall be modulated using a 50% duty cycle square wave signal.

c)

As an alternative to FM modulation, 50%  pulse modulation at  18 Hz may be used because while it 

does not represent actual modulation, it would be worst case.   

f

20.3 Precautions According to IEC 60601

According to IEC 60601-1-2:2014, the device complies with all applicable electromagnetic 
compatibility requirements (EMC) .It may have harmful interference with other devices if you do not 
following the instructions. However, there is not certain it has not interference with other devices 
if you following the instructions. If it does have interference with other device, you can amend 
interference by the following methods.

•  Enlarge the distance between this device and other device.
•  Connect the two devices with different power socket.
•  Ask Yuwell engineer for help.

Essential performance and basic safety testing should be done every two years. If your device 
needs to be done, please contact your provider or Yuwell. This device only can be tested by the 
provider who has be authorized.  

21. Warranty card