User's Manual

are two emitting tube (red light diodes and infrared
diodes) located on the inner upside of the sensor
and they can emit red light and infrared; There is
the receiving end located on the inner downside of
the sensor, and it can transmit the red light and
infrared into the pulse signal through finger. The
MCU receives the pulse signal, gets the frequency
signal by counting, processes its digital signal, and
finally gets the measured SpO2 value. The PR is
averagely calculated by above peak intervals of PR
waveform.
3.5 Stop working & Upload data
Take off the device, the countdown
will begin.
(If the working time is less than 2 minute, there will
be no countdown)
During the countdown, if you wear the device again,
the record will be resumed.
After the countdown, the data will be ready for
uploading.
Notice: The built-in memory can store 1 records.
The oldest will be overwritten by the 2th. Please
upload data to your phone in time.
3.6 How to Check Battery
Press the side button, you can switch display
between readings and battery.
3.7 Unavailable Symbol
When this symbol displays on device screen, it indicates the
readings is unavailable right now.
It may caused by:
 Excessive movement;
 Poor signal, finger is too cold;
Usually, the readings will recover in a few seconds
when at rest.
3.8 Bluetooth Connection
The device Bluetooth will be enabled automatically
after it’s turned on.
To establish a Bluetooth connection,
1) keep the device Bluetooth enabled.
2) Make sure the phone Bluetooth is enabled.
Notice:
 DO NOT PAIR in the settings of your phone.
3.9 Add a New Device
For the initial use, you need to add a new device.
1) Turn on device, run phone, select <Oxyfit>;
2) Press the button on the side of the device
3.10 Smart Vibration by SpO
2
When SpO2 drops below the preset value
(threshold), the buzzer in the sensor will be
activated. When SpO2 is restored, the sound will
stop.
3.11 Smart Vibration by Pulse Rate
When your pulse frequency is higher than the
upper limit or lower than the lower limit, the buzzer
will be activated.
4 Maintenance
4.1 Time & Date
After connection with phone, device time will
upload from your phone time automatically.
4.2 Cleaning
The device can be repeatedly used. Please clean before
reuse as follow:
• Clean the device with a soft, dry cloth with 70%
alcohol and then let it air dry.
• Do not use petrol, thinners or similar solvent.
• Clean the SpO2 sensor carefully with cloth
soaked 70% alcohol and then let it air dry.
Note: The device is a non-sterile medical device and does not
contain any sterile or degradable component thus the device is
not subject to the shelf life requirements.
5 Troubleshooting
6 Specifications
Environmental
Operating
Storage
Temperature
5 to 40°C
-25 to 70°C
Relative humidity
(noncondensing)
10% to 95%
10% to 95%
Barometric
700 to 1060hPa
700 to 1060hPa
Protection against
electric shock
Internally powered equipment
Degree protection
against electrical
shock
Type BF
Electro-magnetic
compatibility
Group I, Class B
Degree of dust &
water resistance
IP22
Weight
28 g
Size
38×30×38 mm
Battery
3.7Vdc, Rechargeable Lithium-
polymer
Charge requirement
5VDC, Max. 80mA
Charge time
2-3 hours
Battery life
12-14hours for typical use
Wireless
Bluetooth 4.2 BLE
Oxygen level range
70% to 100%
SpO2 Accuracy
(Arms)
80-100%:±2%, 70-80%:±3%
Pulse Rate range
30 to 250 bpm
Pulse Rate accuracy
±2 bpm or ±2%, whichever is greater
A functional tester or SpO
2
simulator can be used to determine the
pulse rate accuracy.
Wavelength / Max
emission power
660nm/940nm, 0.8mW/1.2mW
SpO
2
data averaging
time
8s
SpO
2
data update
period
1s
Vibration source
low oxygen level;
high/low pulse rate
Recorded parameters
Oxygen level, Pulse Rate
Record interval
4s
Data storage
1 records, up to 4hours for each
Frequency range
2.402 – 2.480 GHz
Max RF power
-10 dBm
Expected service life
3 years
7 Declared Accuracy
The table below shows Arms values measured using the Pulse
Oximeter in a clinical study in non-motion conditions.
Accuracy Summary by Decade
Decade
Oxygen Saturation (Arms)
70-80%
±3%
80-90%
±2%
90-100%
±2%
This graph shows plots of the error (SpO2 – SaO2) by SaO2 using
the Pulse Oximeter with a linear regression fit and upper 95% and
lower 95% limits of agreement. Each sample data point is identified by
subject from a clinical study in non-motion conditions.
Problem
Possible Cause
Possible Solution
Device
does not
turn on
or no
response
Battery may be low.
Charge battery and try
again.
Device might be
damaged.
Please contact your
local distributor.
Software exception
Press the side button
for 8 seconds
Inaccurat
e
measure
d value
The device has not
been placed for
more than 30
minutes from the
colder environment
to the measuring
environment.
Measurements should
be taken before they
are left in the
measuring
environment for more
than 30 minutes
The device has not
been placed for
more than 30
minutes from the
warmer
environment to the
measuring
environment.
Measurements should
be taken before they
are left in the
measuring
environment for more
than 30 minutes