Scian LD-733 - Wrist Digital Blood Pressure Monitor Manual

PARTS AND COMPONENTS

1. Main Body
2. Display
3. Wrist Cuff
4. Button 'O/I'
5. Button 'M'
6. Batteries (Optional)

SYMBOLS

Symbols	Meaning
	Manufacturer
	Authorized Representative in the
	Symbol for the marking of electrical and electronics devices according to Directive 2002/96/EC. The device, accessories and the packaging have to be disposed of waste correctly at the end of the usage. Please follow Local Ordinances or Regulations for disposal.
	CE marking in conformity with EC
	Keep dry
	Attention, consult accompanying manual
	Type B Applied Part

GENERAL

This instruction manual is intended to assist the user for safe and efficient operation of the wrist type digital blood pressure monitor (hereinafter: device) model LD-733. The device must be used in accordance with the procedures described in the manual. It is important to read and understand the entire manual, especially the section <Tips on taking blood pressure measurement>.

This device is intended for the non-invasive measurement of systolic and diastolic arterial blood pressure and pulse rate in adults (age 15 and above). Consult the physician if measurement is taken in children or persons with arrhythmia as errors may occur.

PRINCIPLE OF OPERATION

This device adopts the oscillometric technology with Fuzzy Algorithm measuring the arterial blood pressure and pulse rate. The wrist cuff is wrapped around the wrist and automatically inflated by the air pump. The sensor of the device catches weak fluctuation of the pressure in the wrist cuff produced by extension and contraction of the artery of the wrist in response to each heartbeat. The amplitude of the pressure waves is measured, converted in millimeters of the mercury column, and is displayed by digital value. Annotation: This device can not provide reasonable accuracy if used or stored in the temperature or humidity beyond the range stated in the section <SPECIFICATIONS> of this manual.

NEW LD TECHNOLOGIES USED

Fuzzy Algorithm is the processing algorithm taking into account of the specialty of individual heartbeats, which provides higher accuracy of measurement.

TIPS ON TAKING BLOOD PRESSURE MEASUREMENT

1. It is necessary to know that arterial blood pressure is subjected to sharp fluctuations. The level of the arterial blood pressure depends on many factors. Generally arterial blood pressure is lower in summer and higher in winter. Arterial blood pressure changes with atmosphere pressure and is affected considerably by many factors, e.g. physical loads, emotional excitability, stress, meals, etc. Medicines, drinking, smoking affects greatly the level of individual blood pressure. When blood pressure is measured in hospital, the value is always higher than that at home. The reason is the tensity and such case is especially serious in given group patients, which is known as 'White coat effect' medically. Blood pressure will raise in low temperature, so it is better to take blood pressure measurement in room temperature (approximately 20℃). If this device was stored in low temperature, it is necessary to leave it in room temperature for at least 1 hour, otherwise the measurement can be inaccurate. Blood pressure does vary with age and individual, and it is recommended to write down the readings in blood pressure record daily, then you can check with your doctor to find out what is "normal blood pressure" for you.
   
   The illustration is from British Hypertension Society
2. Take measurement under doctor's instruction for patients with cardio-vascular diseases. Under no circumstances should you alter the dosages of any drugs prescribed by your doctor!
3. Accurate measurement of blood pressure may be difficult in serious arteriosclerosis, weak pulse, or in patients with obvious fluctuation of heart contraction rhythm. Please consult qualified physician interpret your blood pressure readings.
4. It is necessary to keep quiet during measurement to get accurate readings. Measurement should be conducted in quiet environment at room temperature. Don't eat or smoke before a measurement.
5. Repeated measurements with interval at 3 minutes are recommended, so you can calculate the average to get more accurate measurement. Atherosclerosis patients are required longer interval (10-15 minutes) as elasticity of patients' vessels decreased significantly in these diseases. 10-15 minutes interval is also applicable for patients suffering from diabetes for a long time.

BATTERY INSTALLATION

1. Open the battery cover and install two 'AAA' type batteries into the battery compartment as indicated. Make sure that the polarity is correct;
   
2. Close the battery compartment cover.
   • Replace the batteries when the replacement indication "" appears in the display or nothing after O/I button is pressed;
   • Batteries in this kit are intended to check work capacity of the device and the life-span of the batteries can be shorter than the recommended;
   • Use R03, LR03 or AAA alkaline batteries, do not use rechargeable battery;
   • Only same type batteries are allowed to use together. Replace all batteries simultaneously;
   • If the device is to be unused for long time, please take out the batteries;
   • Don't leave the worn batteries in the device.

CORRECT POSTURE FOR MEASUREMENT

Sit at the table and let the table support your arm as you take the measurement. Make sure that the wrist is at approximately the same level as the heart, and that the forearm is extended naturally with palm up on the table. Wrap the cuff around the left wrist as shown in the illustration, and make sure that the wrist cuff is attached to the wrist securely with display facing the user. If your sleeve restricts blood circulation of your wrist or you roll your sleeve up so as to result in such restriction. Please take off your clothes to get accurate measurement if necessary. If measurement on your left wrist is difficult, you can use right wrist for measurement.

CARRY OUT A MEASUREMENT

1. Before the measurement, take 3~5 times deep breath and relax yourself. Don't talk or move your arm;
2. Press button 'O/I', and all symbols will appear on display in 2 seconds as Fig.1. Then '0' will appear on the screen. The pump begins to inflate with display showing the reading of pressure. Generally the pressure will reach 190 as Fig.2;
   
3. The pump stop inflating and pressure begins to decrease gradually, during which the user's blood pressure and pulse will be calculated as Fig.3;
   
4. The air in the wrist cuff will deflate quickly and the blood pressure reading, pulse reading will show in the display as Fig.4. Moreover the measuring time will also display together in two screens alternately;
   
5. Press the button 'O/I' to return to standby mode. Please rest for at least 3 minutes for another measurement. If the device keeps unused for 3 minutes, the device will be returned to standby mode automatically.

AUTOMATIC INFLATION

There are 4 given levels of inflation pressure for this device: 190mmHg, 230mmHg, 270mmHg and 300mmHg. When 190mmHg is not enough or movement of wrist occurs, the device will automatically inflate to reasonable pressure level to ensure a successful measurement. It is not a fault.

RAPID DEFLATION DURING MEASUREMENT

If you do not feel well during measurement or want to stop the measurement for some reason, you can press the O/I button. The device will quickly release the air in wrist cuff and the device will be returned to standby mode.

FUNCTION OF MEMORY

MEMORY RECALL

1. LD-733 can store 90 sets of readings and will automatically calculate the average value of the latest 3 readings. When the memory is full (90 sets of readings are stored), the oldest reading will be replaced by new one. Memory will not clear away even if power supply is removed;
2. After a measurement is finished or when the device stands by, the user can press button 'M' to recall memory. Press button 'M', the display will show the average value of the latest 3 readings as Fig. 5;
   
3. Press again, the display will show '01', which means the latest reading, then turns to another screen to show readings as Fig.6;
   
4. Press again, the display will show '02', which means the second to the latest reading...

MEMORY CLEARANCE

After a measurement is finished or when the device stands by, hold down button 'M' for at least 5 seconds, the display will show 'CLR' which means the stored reading is removed as Fig.7.

WHO BLOOD PRESSURE CLASSIFICATION

Standards for assessment of high or low blood pressure, regardless of age, have been established by World Health Organization (WHO) as shown in the chart as below: For example, if your blood pressure is 140mmHg (Systolic Pressure), 76mmHg (Diastolic Pressure), according to the world health organization standard, your blood pressure level is Mild Hypertension

Arterial blood pressure classification by World Health Organization

Note:
If the systolic blood pressure and diastolic blood pressure fall into different categories, the higher value should be taken for classification.

ERROR AND LOW BATTERY INFORMATION

INDICATION	POSSIBLE REASON	CORRECTION METHODS
	The wrist cuff is put on wrongly. Movement of arm (or hand) or talking during measurement. The wrist cuff is not inflated to necessary pressure.	Make sure that wrist cuff is put on correctly and repeat the measurement. Repeat the measurement with following completely recommendations of manual. Repeat the measurement with pumping wrist cuff to higher pressure
	The batteries are weak	Replace all 2 batteries with new ones

CARE, STORING, REPAIR AND RECYCLING

1. It's necessary to protect this device against high moisture, direct sunlight, shock, solvent, alcohol and gasoline.
2. Remove the batteries if the device is to be stored for a long time and keep the batteries far from the children.
3. Keep the wrist cuff from sharp subject and don't extend or twist the wrist cuff.
4. Use only soft and dry cloth to clean the device.
5. The wrist cuff are sensitive and must be handled with care. You can clean the wrist cuff cover with damp cloth as daily maintenance.
   To avoid across infection when share the cuff, you can sanitary treatment of inner side of fabrics cover of the cuff and contacting with help of cotton wool tampons, moistened by 3% solution of hydrogen dioxide. After long using, it is allowed partial discoloration of fabrics covering of the cuff. It is not allowed the laundry of the cuff, as well as ironing by hot flatiron.
   
   Under no circumstances may you wash the inner bladder!
6. Since neither the device nor batteries are household waste, follow your local recycling rules and dispose them at appropriate collection sites.
7. Do not open the device. It is delicate electrical components and an intricate air unit that could be damaged. If you can not fix the problem using the troubleshooting instruction, request service from your dealer.
8. It is generally recommended to have the monitor inspected every 2 years, to ensure proper functioning and accuracy and safety. Please contact your dealer for maintenance.

Do not modify the equipment without authorization of the manufacturer.

TROUBLESHOOTING

WARRANTY OBLIGATIONS

1. Warranty for this automatic digital blood pressure monitor is 24 months since the date of purchase. The 24 months warranty excludes the wrist cuff. The wrist cuff is warranted for 12 months.
2. The warranty obligations are prescribed by warranty certificate for buyer.
3. The addresses of organizations for guarantee maintenance are present in the warranty certificate.

SPECIFICATIONS

SHANGHAI INTERNATIONAL TRADING CORP. GMBH (HAMBURG)
Address: Eiffestrasse 80, 20537 Hamburg, GERMANY