7 Operating Guide
7.1 Insert the two batteries properly to the direction, and then replace the cover.
7.2 Open the clip as shown in Figure 5.
Figure 5. Put
finger in
position
7.3 Let the
patient’s finger
put into the
rubber cushions
of the clip
(make sure the
finger is in the
right position),
and then clip the finger.
7.4 Press the switch button once on front panel.
7.5 Do not shake the finger and keep the patient at ease during the process. Meanwhile, human body is not
recommended in movement status.
7.6 Get the information directly from screen display.
7.7 The button has three
functions.When the device is
power off, pressing the button can open it; When the device is power on, pressing the
button shortly can change direction of the screen; When the device is power on,
pressing the button long can change brightness of the screen.
Fingernails and the luminescent tube should be on the same side.
8 Repairing and Maintenance
Please change the batteries when the low-voltage displayed on the screen.
Please clean the surface of the device before using. Wipe the device with medical alcohol first, and then
let it dry in air or clean it by dry clean fabric.
Using the medical alcohol to disinfect the product after use, prevent from cross infection for next time
use.
Please take out the batteries if the oximeter is not in use for a long time.
The best storage environment of the device is - 40ºC to 60ºC ambient temperature and not higher than
95% relative humidity.
Users are advised to calibrate the device termly (or according to the calibrating
program of hospital). It also can be performed at the state-appointed agent or jus
t contact us for calibration.
High-pressure sterilization cannot be used on the device.
Do not immerse the device in liquid.
It is recommended that the device should be kept in a dry environment. Humidity may reduce
the useful life of the device, or even damage it.
9 Troubleshooting
Trouble Possible Reason Solution
The SpO
2
and Pulse
Rate can not be
displayed normally
1. The finger is not properly positioned.
2. The patient’s SpO
2
is too low to be
detected.
1. Place the finger properly and try
again.
2. Try again; Go to a hospital for a
diagnosis if you are sure the device
works all right.
The SpO
2
and Pulse
Rate are not displayed
stably
1. The finger is not placed inside deep
enough.
2. The finger is shaking or the patient is
moving.
1. Place the finger properly and try
again.
2. Let the patient keep calm
The device can not be
turned on
1. The batteries are drained or almost
drained.
2. The batteries are not inserted properly.
3. The malfunction of the device.
1. Change batteries.
2. Reinstall batteries.
3. Please contact the local service
center.
The display is off
suddenly
1. The device will power off
automatically when it gets no signal
within 5 seconds.
2. The batteries are almost drained.
1. Normal.
2. Change batteries.
10 Key of Symbols
Symbol Description
Type BF
Refer to instruction manual/booklet
The pulse oxygen saturation(%)
PRbpm Pulse rate (bpm)
The battery voltage indication is deficient (change the battery in time avoiding the
inexact measure)
1. no finger inserted
2. An indicator of signal inadequacy
battery positive electrode
battery cathode
1.Power switch
2.change direction of the screen
3.Change brightness of the screen
SN Serial number
Alarm inhibit
WEEE (2002/96/EC)
IP22 Ingress of liquids rank
European Representative
This item is compliant with Medical Device Directive 93/42/EEC of June 14,
1993, a directive of the European Economic Community.
11 Function Specification
Display Information Display Mode
The Pulse Oxygen Saturation(SpO
2
) OLED
Pulse Rate(PR) OLED
Pulse Intensity (bar-graph) OLED bar-graph display
Pulse wave OLED
SpO
2
Parameter Specification
Measuring range 0%~100%, (the resolution is 1%).
Accuracy 70%~100%: ±2% ,Below 70% unspecified.
Optical Sensor Red light (wavelength is 660nm)
Infrared (wavelength is 880nm)
Pulse Parameter Specification
Measuring range 30bpm~250bpm (the resolution is 1 bpm)
Accuracy ±2bpm or±2% select larger
Pulse Intensity
Range Continuous bar-graph display, the higher display indicate the
stronger pulse.
Battery Requirement
1.5V (AAA size) alkaline batteries × 2 or rechargeable battery
Battery Useful Life
Two batteries can work continually for 20 hours
Dimensions and Weight
Dimensions 61(L) × 36(W) × 32(H) mm
Weight About 57g (with the batteries)
Appendix
Guidance and manufacture’s declaration-electromagnetic emission
for all EQUIPMENT and SYSTEMS
Guidance and manufacture’s declaration –electromagnetic emission
The CMS50D1 Pulse Oximeter is tended for use in the electromagnetic environment
specified below. The customer of the user of the CMS50D1 Pulse Oximeter should
assure that it isused in such an environment.
Emission test compliance Electromagnetic environment-guidance
RF emissions
CISPR 11
Group 1 The CMS50D1 Pulse Oximeter uses RF
energy only for their internal function.
Therefore, its RF emissions are very low and
are not likely to cause any interference in
nearby electronic equipment.
RF emissions Class B The CMS50D1 Pulse Oximeter is suitable
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