User's Manual

22
*Troubleshooting
LCD display information
Remark
Er U
The inflation can not reach 30
mmHg in 12 seconds.
Er H
The inflation reaches 295mmHg,
it deflates automatically after 20ms.
Er 1
The pulse rate is not detected correctly.
Er 2
Too much disturbance（Move, talk, or
magnetic disturbance during a
measurement.）
Er 3
The test result is abnormal.
Er 23
SYS value reads lower than 57mmHg
Er 24
SYS value reads higher than 255mmHg
Er 25
DIA value reads lower than 25mmHg
Er 26
DIA value reads higher than 195mmHg
Anomaly
Inspection Items
Countermeasures
There is
no display
after the
power
switch is
pressed
Whether the battery
power is insufficient
Replace the battery or
insert the USB for charging
Whether positive and
negative poles of the
battery are installed
reversely
Install in the positive and
negative pole direction of
battery
Whether the air
tube plug is
inserted tightly
Insert the air tube plug
firmly into the jack