1. Utangulizi
The CONTEC CMS50D2 Pulse Oximeter is a non-invasive device designed for measuring the oxygen saturation of arterial hemoglobin (SpO2) and the pulse rate. This device is intended for spot-checking and continuous monitoring of adult and pediatric patients in home and clinical environments. It provides a quick and accurate assessment of respiratory function.
The concentration of oxygen determines the percentage of hemoglobin in arterial blood that is saturated with oxygen, making it an important parameter for evaluating respiratory function. The device is small, lightweight, and portable, making it convenient for use anywhere.
2. Taarifa za Usalama
Please read all safety warnings and instructions carefully before using this device. Improper use may result in inaccurate readings or device damage.
- Usitumie oximeter ya mapigo katika mazingira ya MRI au CT.
- Do not use the device in environments with flammable anesthetics.
- The device is not intended for continuous monitoring of patients requiring constant supervision.
- Weka kifaa mbali na maji na unyevu.
- Consult a medical professional for interpretation of readings and before making any medical decisions.
3. Bidhaa za Bidhaa
- Determines arterial oxygen saturation (SpO2) and pulse rate (PRbpm).
- Displays SpO2 value and pulse rate value.
- Kiwango cha chinitage indicator and audible alarm if pulse is above set limit.
- Suitable for individuals with heart failure, chronic obstructive pulmonary diseases, bronchial asthma, and for high-altitude sports (mountaineering, skiing, aviation).
- Adjustable display mode and screen brightness.
- OLED display in blue and yellow with pulse waveform graph.
- Automatic power-off: The device will turn off automatically in 5 seconds if the finger is improperly placed or removed.
4. Yaliyomo kwenye Kifurushi
Kifurushi cha bidhaa kwa kawaida hujumuisha vitu vifuatavyo:
- 1 x CONTEC CMS50D2 Pulse Oximeter
- 1 x Lanyard
- Betri 2 x AAA
- 1 x Mwongozo wa Mtumiaji
5. Kuweka
5.1. Ufungaji wa Betri
The CMS50D2 Pulse Oximeter requires two AAA batteries for operation. Ensure correct polarity when inserting the batteries.
- Fungua kifuniko cha sehemu ya betri kilicho nyuma ya kifaa.
- Insert two AAA batteries according to the polarity indicators (+ and -) inside the compartment.
- Funga kifuniko cha sehemu ya betri kwa usalama.

Kielelezo 1: Mbele view of the Andon CMS50D2 Pulse Oximeter, showing the OLED display and finger insertion area.
6. Maagizo ya Uendeshaji
Follow these steps to obtain accurate readings:
- Hakikisha kuwa betri zimesakinishwa kwa usahihi.
- Fungua clamp ya oximeter.
- Insert one of your fingers (preferably the index, middle, or ring finger) into the rubber opening of the oximeter, ensuring the nail surface is facing upwards towards the display.
- Achilia clamp, allowing the oximeter to securely hold your finger.
- Press the power button on the top of the device to turn it on.
- Keep your hand still during the measurement. Do not shake your finger.
- Vipimo vya SpO2 na kiwango cha mapigo ya moyo vitaonekana kwenye onyesho ndani ya sekunde chache.
- To change the display orientation or brightness, briefly press the power button while the device is on.
- The device will automatically power off after 5 seconds of inactivity or if the finger is removed.

Figure 2: The pulse oximeter correctly placed on a finger, displaying SpO2 and pulse rate readings.
7. Maelezo ya Kuonyesha
The OLED display provides the following information:
- SpO2: Peripheral Oxygen Saturation (percentage). This indicates the percentage of hemoglobin in your blood that is saturated with oxygen. Normal values typically range from 95% to 100%.
- PRbpm: Pulse Rate (beats per minute). This is the number of times your heart beats per minute. Normal adult resting heart rate ranges from 60 to 100 bpm.
- Pulse Bar Graph: A vertical bar graph indicating the strength of the pulse.
- Plethysmograph (Waveform): A graphical representation of the pulse, showing blood flow through the finger.
- Kiashiria cha Betri: Inaonyesha maisha ya betri yaliyosalia.
8. Matengenezo na Matunzo
8.1. Kusafisha
Safisha uso wa kipima joto kabla na baada ya kila matumizi. Tumia kitambaa laini dampened with medical alcohol (70% ethanol or isopropanol) to wipe the surface. Do not immerse the device in liquid.
8.2. Hifadhi
Store the device in a cool, dry place, away from direct sunlight and extreme temperatures. If the device will not be used for an extended period, remove the batteries to prevent leakage.
9. Utatuzi wa shida
| Tatizo | Sababu inayowezekana | Suluhisho |
|---|---|---|
| Hakuna onyesho baada ya kuwasha | Betri zimekufa au kusakinishwa vibaya. | Replace batteries or re-install them correctly, observing polarity. |
| Usomaji sahihi | Finger not inserted properly; patient movement; strong ambient light; nail polish or artificial nails. | Re-insert finger correctly; remain still; shield from strong light; remove nail polish/artificial nails. |
| "Finger Out" or "Error" message | Finger not detected or poor signal quality. | Ensure finger is fully inserted and still. Try a different finger. |
| Maonyesho hayafai | Mpangilio wa betri ya chini au mwangaza. | Replace batteries. Adjust brightness by pressing the power button. |
10. Vipimo
- Jina la Mfano: CMS50D2
- Mtengenezaji: Andon (CONTEC)
- Vipimo: 7.62 x 2.54 x 5.08 cm
- Uzito: 25 g
- Chanzo cha Nguvu: Betri 2 x AAA (zimejumuishwa)
- Maisha ya Betri: Approximately 50 hours of continuous operation
- Measurement Range (SpO2): 70-100%
- Aina ya Kuonyesha: OLED, blue and yellow
- Shut-otomatiki: Ndiyo, baada ya sekunde 5 za kutofanya kazi
- Nchi ya Asili: Uswisi
11. Udhamini na Msaada
Specific warranty details for the CONTEC CMS50D2 Pulse Oximeter may vary depending on the region and retailer. Please refer to the warranty card included with your product or contact your point of purchase for detailed warranty information.
For technical support or inquiries, please contact the manufacturer, CONTEC, or the authorized seller from whom you purchased the device. Keep your purchase receipt as proof of purchase.