11
5. Other possible malfunctions and their elimination
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.
Remedy
1. Check the earpieces 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 chestpiece
if there is any crack.
4. Make sure the chestpiece 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
manometer.
3. Check if the cuff, tube and bulb is leaky.
Replace the defective parts if any.
1. Disassemble the bulb from manometer 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.
