MEDISANA BW 310 Wrist Blood Pressure Monitor

Scope of Supply

• 1 MEDISANA blood pressure monitor BW 310
• 2 batteries (type AAA, LR03) 1.5V
• 1 storage box
• 1 instruction manual

Contact your supplier if you notice any transport damage.

Explanation of Symbols

IMPORTANT: Follow the instructions for use! Non-observance can result in serious injury or damage.

WARNING: These notes must be observed to prevent injury.

CAUTION: These notes must be observed to prevent damage to the device.

NOTE: These notes provide useful additional information.

Device Classification

Type BF applied part

Proper Use

This fully automatic electronic blood pressure monitor is intended for measuring blood pressure at home. It is a non-invasive system for measuring diastolic and systolic blood pressure and pulse of adults using oscillometric technique via a wrist cuff.

Contraindications

• Not suitable for measuring blood pressure of children. Consult your doctor before using on older children.
• Persons with arrhythmia, diabetes, cardiovascular problems, or who have had a stroke should consult their doctor before using the device.

Common Factors Affecting Measurement Accuracy

• Rest for 5-10 minutes before measurement.
• Avoid eating, drinking alcohol, smoking, exercising, and bathing before measurement.
• Remove watches or jewelry from the wrist being measured.
• Always measure on the same wrist (normally left).
• Measure regularly at the same time each day.
• Supporting the arm during measurement may increase blood pressure.
• Ensure a comfortable, relaxed position; do not tense muscles. Use a cushion if necessary.
• Ensure the wrist is at heart level.
• A loose or open cuff causes false readings.
• Repeated measurements can cause blood accumulation in the wrist, leading to false readings. Allow 5-minute pauses or hold the arm up to allow blood to flow normally between consecutive measurements.

Safety Instructions

Read the instruction manual carefully, especially the safety instructions, and keep it for future reference. Pass on instructions if the device is given to another person.

• The unit is intended only for home use. Consult your doctor if you have health concerns.
• Use the unit only for its intended purpose. Misuse voids warranty claims.
• Consult your doctor before use if you suffer from illnesses such as arterial occlusive disease.
• The unit may not be used to check the heart rate of a pacemaker.
• Certain medical conditions (cardiac arrhythmias, low blood pressure, circulatory disorders, shock, diabetes, pregnancy, pre-eclampsia) can affect measurement accuracy. Always consult a physician before use.
• This device is not suitable for medical diagnosis. Measurement results are for reference only. Contact your physician for necessary treatment and medication information.
• The arrhythmia function does not replace a professional cardiac examination. Consult your doctor regarding necessary treatments or actions.
• A heartbeat variation of 25% or more from the average can cause measurement errors.
• The "Blood pressure classification WHO" is not a substitute for medical diagnosis. Ask your physician for an individual evaluation.
• If you experience discomfort (pain, cuff not stopping inflation), press the [STOP] button to release air immediately. Loosen and remove the cuff.
• High repetition rates may lead to side effects like nerve compression or blood clots.
• Frequent measurements may cause temporary skin marks.
• This device is not designed for use by persons with limited physical, sensory, or mental abilities, or lack of experience/knowledge, unless supervised or instructed by a responsible person.
• This device is intended for adults. Unsuitable for infants or children. Consult a doctor for use on young persons.
• Do not allow children to use the unit. Medical products are not toys.
• Swallowing small parts can cause suffocation.
• The user must check that the equipment functions properly and is in good working condition before use.
• Use the device only in specified ambient conditions.
• Do not operate near high-radiation devices (radio transmitters, mobile phones, microwaves).
• Do not use where flammable gas or liquids are present.
• Do not take measurements if other equipment is applied to the same limb.
• Consult a doctor after lymph node removal.
• Never apply the cuff over injured skin or with an inserted catheter.
• Apply the cuff only on the left wrist.
• Ensure the cuff has no wrinkles to prevent bruising.
• Cuff size must match wrist circumference for accuracy.
• Do not apply the cuff over clothing, as this may cause inaccurate readings or injuries.
• Do not kink, fold, or pull the cuff over sharp edges.
• Do not modify the unit. Do not attempt self-repair; only authorized service centers should perform repairs.
• Protect the unit against moisture. Remove batteries immediately if liquid penetrates and discontinue use. Contact your dealer or us.
• Extreme temperatures, humidity, or altitudes may impair performance.
• Do not use diluents, alcohol, or gasoline for cleaning.
• Do not hit, drop, insert objects into openings, or force buttons.
• Remove batteries if the unit will not be used for a long period.

Safety Notes for Batteries

• Do not disassemble batteries.
• Replace batteries when the low battery symbol appears.
• Remove weak batteries immediately to prevent leakage and damage.
• Avoid contact with battery acid. Rinse affected areas with water and seek medical attention if contact occurs.
• Seek immediate medical attention if a battery is swallowed.
• Replace all batteries simultaneously.
• Use only batteries of the same type; do not mix used and new batteries or different types.
• Insert batteries correctly, observing polarity.
• Keep batteries out of children's reach.
• Do not attempt to recharge batteries – danger of explosion.
• Do not short circuit batteries – danger of explosion.
• Do not throw batteries into fire – danger of explosion.
• Dispose of used batteries properly in hazardous waste containers or at collection points, not in household refuse.

Unit and LCD Display Components

• Lid of the Battery Compartment
• Blood Pressure Indicator (green - yellow - orange - red)
• LC-display
• Wrist cuff
• [M button] (Memory Recall)
• [User button] (User Setting)
• [START/STOP button]
• [Clock/Date button]
• [Change Battery symbol]
• Average value
• Memory Location number
• User memory 1
• User memory 2
• Display of Systolic Pressure
• Display of Diastolic Pressure
• [Inflation symbol]
• [Deflation symbol]
• [Arrhythmia display] (irregular heartbeat)
• Display of Pulse Rate
• [Pulse symbol]
• Blood Pressure Indicator
• Display of Time / Date

What is Blood Pressure?

Blood pressure is the pressure created in the blood vessels by each heart beat. Systolic pressure is the highest value when the heart contracts. Diastolic pressure is the lower value when the heart muscle relaxes.

How is Blood Pressure Measured?

The MEDISANA BW 310 uses a microprocessor and pressure sensor to measure blood pressure from the wrist by analyzing pressure variations during cuff inflation and deflation.

Blood Pressure Classification (WHO)

WARNING: Blood pressure that is too low is as risky as high blood pressure! Dizziness can lead to dangerous situations.

Influencing and Evaluating Readings

• Measure multiple times, record, and compare results. Do not draw conclusions from a single reading.
• Always have readings evaluated by a doctor familiar with your medical history. Inform your doctor periodically about your readings.
• Daily blood pressure values are influenced by factors like smoking, alcohol, medication, and physical exertion.
• Measure blood pressure before meals.
• Rest for at least 5-10 minutes before measuring.
• If systolic or diastolic readings are consistently unusual (too high or too low) despite correct use, inform your doctor. This also applies if an irregular or weak pulse prevents measurement.

Starting Up

Insert / Replace Batteries

Open the battery compartment lid on the left side. Insert 2 AAA LR03 1.5V batteries, observing polarity. Close the compartment. Replace batteries immediately if the [Change Battery symbol] flashes with "E6", or if nothing appears on the display. If the [Change Battery symbol] is constant with "E6", batteries are low. A full symbol indicates good batteries.

Settings

After inserting batteries, the device enters settings mode automatically. To access manually, press and hold the [Clock/Date button] for approx. 3 seconds when the unit is on.

1. Year Setting: The year flashes. Press the [M button] until the desired year appears. Press the [START/STOP button] to confirm.
2. Month / Date Setting: The month flashes. Press the [M button] until the desired month appears. Press the [START/STOP button] to confirm. The day then flashes. Press the [M button] until the desired day appears. Press the [START/STOP button] to confirm.
3. Time Setting: The hour flashes. Press the [M button] until the desired hour appears. Press the [START/STOP button] to confirm. The minute then flashes. Press the [M button] until the desired minute appears. Press the [START/STOP button] to confirm.

Settings are now complete. The current time and date are displayed. Press the [START/STOP button] to switch off. Settings are lost if batteries are changed.

Setting User Memory

The BW 310 allows assigning readings to two user memories (60 slots each). After switching on (press [START/STOP button]), press the [User button] to select User 1 or User 2. This selection is saved until changed.

Fitting the Cuff

1. Attach the clean cuff to the left wrist, free from clothing, palm facing upwards.
2. Ensure a gap of approx. 1 cm between the cuff and the palm.
3. Fasten the Velcro tape firmly around the wrist, but not too tight to avoid falsifying the result.

Correct Position for Taking Readings

• Perform the measurement while seated.
• Relax your arm and place it comfortably, e.g., on a table.
• Raise the wrist so the cuff is at heart level (a = too high, b = correct, c = too low).
• Keep still during the measurement: do not move or talk.

Taking a Blood Pressure Measurement

1. Switch on the unit by pressing the [START/STOP button]. This also starts the measurement.
2. The unit is ready. Average of last 3 measurements and last memory slot number appear briefly. The cuff inflates automatically and slowly.
3. Rising pressure is shown on the display. The cuff inflates sufficiently, then slowly deflates for measurement. The [Pulse symbol] flashes when a signal is detected.
4. When measurement is finished, the cuff deflates. Systolic, diastolic pressure, and pulse value appear on the display. The Blood Pressure Indicator shows the WHO classification. The [Arrhythmia display] appears if an irregular heartbeat is detected.
5. Readings are automatically saved in the selected memory (up to 60 values with date/time).
6. Results remain on display. Unit switches off automatically after approx. 2 minutes, or can be switched off using the [START/STOP button].

WARNING: Do not take therapeutic measures based on self-measurement. Never alter prescribed medication dosage.

Discontinuing a Measurement

If necessary to interrupt a measurement (e.g., patient feels unwell), press the [START/STOP button] at any time. The cuff will deflate immediately.

Display Stored Values

This unit has 2 memories, each with 60 slots. Results are saved automatically. To recall stored values: with the unit off, press the [START/STOP button] to power on. Press the [User button] to select user ( or ). Press the [M button]. The average of the last 3 measurements appears ("AVG" lights up). Pressing [M button] again shows the last measurement, and subsequent presses show previous values. If no button is pressed, the unit auto-switches off after approx. 2 minutes. Pressing the [START/STOP button] exits recall mode and switches off the unit. The oldest value is deleted when memory is full.

Delete Saved Values

To delete a saved measurement: display the values first. Press and hold the [M button] until "CL" and "--" appear. Press the [START/STOP button] to confirm deletion. To delete all values for a user: display the average values ("AVG" lights up). Press and hold the [M button] until "CL" and "--" appear. Press the [START/STOP button] to confirm. "CL" and "00" appear upon successful deletion.

Error Messages and Remedying

If a problem cannot be solved, contact the manufacturer. Do not disassemble the unit.

Cleaning and Care

Remove batteries before cleaning. Clean the unit and cuff with a soft cloth lightly moistened with mild soapy solution. Never use abrasive cleaners, alcohol, thinner, or gasoline. Do not immerse the unit or components in water. Ensure no moisture enters the unit. Do not use again until completely dry. Inflate cuff only when on wrist. Protect from direct sunlight, dirt, and moisture. Avoid extreme temperatures. Store in original packing or a clean, dry location.

Disposal

This product must not be disposed of with domestic waste. Hand in electrical/electronic devices at municipal or commercial collection points for environmentally friendly disposal. Remove batteries before disposal. Dispose of batteries properly.

Guidelines / Standards

This blood pressure monitor meets EU standard for non-invasive blood pressure monitors. Certified according to EC Guidelines, carries CE symbol "CE 0297". Complies with EN 1060-1 and EN 1060-3. Meets EU Guideline "93/42/EEC". Complies with EN 60601-1-2 for electromagnetic compatibility.

Technical Specifications

We reserve the right to make technical and visual changes without notice as part of our policy of continual product improvement.

Warranty and Repair Terms

Contact your supplier or service center for warranty claims. Include a copy of the receipt and state the defect if returning the unit.

1. MEDISANA products have a 3-year warranty from the date of purchase, proven by receipt or invoice.
2. Material or workmanship defects will be repaired free of charge within the warranty period.
3. Warranty service does not extend the warranty period for the unit or replacement parts.
4. Warranty excludes: damage from improper treatment (non-observance of instructions), repairs/tampering by customer or unauthorized third parties, transport damage, and accessories subject to normal wear (e.g., batteries).
5. Liability for direct or indirect consequential losses caused by the unit is excluded, even if the unit's damage is accepted as a warranty claim.