Microlife AG1-20 - Инструкция по эксплуатации - Страница 12

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5. Malfunction / Troubleshooting

If problems occur when using the device, the following points should be checked and if 

necessary, the corresponding measures are to be taken:

Malfunction

The sound transmission is  
poor, distorted or there is  
extraneous noise.

The pressure does not rise  
although the bulb is pumping.

The deflation rate can not be  
set to 2-3 mmHg/ sec. by  
adjusting the air release valve.

Pointer is not at 0 +/- 3 mmHg  
at rest.

☞

  Further information

The level of blood pressure is subject to fluctuations even with healthy people. Important thereby 
is, that 

comparable measurements always require the same conditions (rest condition)!

If, in spite of observing all these factors, the fluctuations are more than 15 mmHg, and/or you 
hear irregular pulses on several occasions, please consult your doctor.
You must consult your specialist dealer or chemist if there are technical problems with the blood 
pressure instrument. 

Never attempt to repair the instrument yourself!

Any unauthorised opening of the instrument invalidates all guarantee claims!

Remedy

1. Check the ear pieces if they are plugged or cracked. If not, 

make sure they do not fit poorly as worn.

2. Check the tube if it is broken or twisted.
3. Check the bell and diaphragm of chest piece if there is any crack.
4. Make sure the chest piece is in proper contact with skin and 

over brachial artery during measuring. Clean or replace any 
defective parts if found to avoid inaccurate reading.

1. Make sure that the valve is closed.
2. Make sure the cuff is properly connected to bulb and manometer.
3. Check if the cuff, tube and bulb is leaky. Replace the defective 

parts if any.

• Disassemble the valve from bulb to check if there is any 

blockage in the airway of the valve. Clean the blockage and 

  try again. If it still does not work, replace it to avoid inaccurate 

reading.

1. Make sure that the valve is open for zero check.
2. If still more than 3 mmHg deviation, contact your dealer to 

recalibrate the manometer.