Microlife BP3GK1-4B Blood Pressure Monitor User Manual

The Microlife BP3GK1-4B is an upper arm blood pressure monitor featuring clinically validated accuracy, one-touch operation, Intellisense technology for comfortable inflation, irregular heartbeat detection, 60 memory slots with date and time stamp, WHO classification indicator, large LCD display, and automatic power-off. It is intended for home use to monitor systolic and diastolic blood pressure and pulse rate. Below are key sections for safety, features, preparation, measurement, memory functions, maintenance, and troubleshooting.

Features at a Glance

Key components: Main Unit, Upper Arm Cuff, Instruction Manual, 4 x AA Batteries, Storage Case.

Safety Information

Read all instructions before use. This device is for measuring blood pressure and pulse rate only.

1. Intended Use: For adult self-measurement at home. Not for professional medical diagnosis.
2. Contraindications: Do not use on an arm with an intravenous drip or surgical wound.
3. Precautions: Remain still and quiet during measurement. Do not talk.
4. Batteries: Use only specified batteries. Remove if device will not be used for extended period.
5. Cuff: Ensure cuff is correctly sized for your arm circumference (22-32 cm).

WARNING! This device is not a substitute for professional medical care. Consult your physician for diagnosis and treatment.

Parts Identification

Familiarize yourself with the device components.

1. Main Unit: Contains LCD display, START/STOP button, MEMORY button, User Select button (I/II).
2. Cuff: Arm band with Velcro closure, air tube, and artery mark (▲).
3. Air Plug: Connects cuff tube to main unit.
4. Battery Compartment: Located on back of unit for 4 AA batteries.
5. LCD Display: Shows systolic/diastolic pressure, pulse, memory number, user symbol, date/time, WHO indicator, IHD symbol, and error codes.

CAUTION! Do not bend or kink the air tube. Keep device away from extreme temperatures and humidity.

Specifications

• Measurement Method: Oscillometric.
• Measurement Range: Pressure: 0-299 mmHg, Pulse: 40-180 beats/min.
• Accuracy: Pressure: ±3 mmHg, Pulse: ±5% of reading.
• Memory: 60 sets (30 for User I, 30 for User II) with date and time.
• Cuff Size: Fits arm circumference 22-32 cm (8.7"-12.6").
• Power Supply: 4 x 1.5V AA batteries or optional AC adapter (specified model).
• Automatic Shut-off: Approx. 1 minute after last operation.
• Operating Conditions: Temperature: 10°C to 40°C (50°F to 104°F), Humidity: ≤85% RH.
• Dimensions: Main Unit: Approx. 121mm (W) x 97mm (H) x 141mm (D).
• Weight: Approx. 300g (without batteries).

Preparation for Measurement

For accurate results, proper preparation is essential.

1. Rest: Sit quietly for 5 minutes before measuring.
2. Position: Sit on a chair with feet flat on floor, back supported.
3. Arm Position: Place arm on table so cuff is at heart level.
4. Cuff Application: Wrap cuff on bare upper arm. The artery mark (▲) should be over the brachial artery on the inner arm. Cuff edge should be 2-3 cm above elbow.
5. Tightness: Cuff should be snug; you should be able to fit one finger underneath.

Tip: Avoid eating, smoking, exercising, or drinking caffeine for 30 minutes before measurement.

Taking a Measurement

Follow these steps for a proper reading.

1. Insert batteries or connect AC adapter.
2. Select user (I or II) by pressing the User button.
3. Wrap cuff correctly on left arm (unless instructed otherwise by physician).
4. Press the START/STOP button. All display symbols will appear briefly.
5. The cuff will inflate automatically. Remain still and do not talk.
6. Measurement proceeds; pulse symbol flashes.
7. Cuff deflates automatically. Results display with systolic, diastolic, and pulse rate.
8. The WHO indicator bar graph shows classification.
9. If an irregular heartbeat is detected, the IHD symbol appears.
10. Reading is automatically stored in memory for selected user.
11. Device powers off automatically after 1 minute.

WARNING! Do not inflate cuff when not wrapped around arm. Excessive pressure may damage device.

Memory Recall Function

Review past measurements stored in memory.

1. Press the MEMORY button to enter memory mode.
2. The display shows the most recent reading for the selected user (I or II).
3. Press the START/STOP button to scroll through previous readings in reverse chronological order.
4. Each reading shows memory number, systolic/diastolic values, pulse, date, and time.
5. To view the other user's memory, first select that user with the User button, then press MEMORY.
6. To clear all memory for the selected user, press and hold the MEMORY button for 3 seconds until "CLr" appears.
7. Press MEMORY again to exit memory mode.

Note: Memory is retained even when batteries are removed.

Understanding Your Readings

Interpret your results using the WHO classification.

Irregular Heartbeat Symbol (IHD): If this symbol appears, it means significant pulse irregularities were detected during measurement. Take 2-3 more readings. If symbol appears frequently, consult your physician.

Important: A single high reading does not necessarily mean you have hypertension. Track readings over time and share them with your doctor.

Care & Maintenance

Proper care ensures long device life and accurate readings.

1. Cleaning: Wipe main unit and cuff with a soft, slightly damp cloth. Do not immerse in water or use abrasive cleaners.
2. Storage: Store in provided case in a cool, dry place. Do not store with cuff tightly wrapped.
3. Handling: Avoid dropping or subjecting to strong shocks. Do not bend air tube sharply.
4. Cuff Care: Check cuff periodically for tears or leaks. The Velcro should remain clean for secure closure.

CAUTION! Do not disassemble the device. There are no user-serviceable parts inside.

Battery Information

Using and replacing batteries.

• Battery Type: 4 x 1.5V AA (LR6) alkaline batteries.
• Battery Life: Approx. 300 measurements (based on 2 measurements per day).
• Low Battery Indicator: A battery symbol appears on display when power is low.
• Replacement: Open battery compartment on back. Remove old batteries and insert new ones, observing correct polarity (+/-).
• Disposal: Dispose of batteries according to local regulations. Do not incinerate.
• AC Adapter (Optional): Use only the specified Microlife AC adapter (Model AD-5). Insert plug into DC jack on side of unit.

Note: If device will not be used for 3 months or more, remove batteries to prevent leakage.

Troubleshooting

Reset: Remove batteries for 1 minute, then reinsert. This resets the microprocessor.

Service: For technical support or service, contact Microlife AG or your local distributor. Do not attempt to repair the device yourself.