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This section includes a list of error messages and frequently 

asked questions for problems you may encounter with your wrist

blood pressure monitor. If the products not operating as you 

think it should, check here before arranging for servicing.

PROBLEM SYMPTOM CHECK THIS

REMEDY

No power

Low

batteries

Error

message

Display is dim or
will not light up.

Batteries are exhausted. Replace with new batteries

Insert the batteries 
correctly

Replace with new batteries

Batteries are inserted

incorrectly.

Show on

the display Batteries are low.

E 1 shows

The cuff is not secure.

Refasten the cuff and then

measure again.

E 2 shows

The cuff is very tight

Refasten the cuff and then

measure again.

E 3 shows

The pressure of the

cuff is excessive.

Relax for a moment

and then measure again.

E 10 or 

E 11 shows

The monitor detected

motion while measuring.

Movement can affect the

measurement.Relax for a 

moment and then 

measure again.

E 20 shows

E 21 shows

Relax for a moment and

then measure again.

EExx,shows on 

the display.

A calibration error

occurred.

Retake the measurement.

If the problem persists,

contact the retailer or our

customer service 

department for further 

assistance.Refer to the 

warranty for contact 

information and return 

instructions.

The measurement 

process does not detect 

the pulse signal.

Loosen the clothing on

the wrist and then 

measure again. 

Measure incorrectly.

19

18

ABOUT BLOOD PRESSURE

TROUBLESHOOTING

1. Individual blood pressure varies multiple times everyday. It is also 

affected by the way you tie your cuff and your measurement position, 

so please take the measurement under the same conditions.
2. If the person takes medicine, the pressure will vary more.

3. Wait at least 3 minutes for another measurement.

Why do I get a different blood pressure 

at home compared to the hospital?

The blood pressure differs throughout the day due to weather, 

emotion, exercise etc. There is the “white coat” effect, which means 

blood pressure can increase in clinical settings.

If the cuff is secured properly. 
If the cuff is too tight or too loose.
If the cuff is tied on the wrist.
If you feel anxious.
Taking 2-3 deep breaths before

beginning will calm you down and 

improve measurement.        

Is the result the same if measuring 

on the right wrist?

It is ok for both wrists, but there will be varying results for different 

people. We suggest you measure the same wrist every time.

Why does my blood pressure 

fluctuate throughout the day?

What you need to pay 

attention to when you 

measure your blood 

pressure at home: 

Summary of Contents for Vena TMB-988

Page 1: ...oosing the Vena Blood Pressure Monitor To use the monitor correctly and safely please read the manual thoroughly Please keep this manual well in order to reference in future AVG SYS kPammHg AVG DIA PM...

Page 2: ...BLOOD PRESSURE What are systolic pressure and diastolic pressure What is the standard blood pressure classification Why does my blood pressure fluctuate throughout the day Why do I get a different bl...

Page 3: ...ssure of children Ask your doctor before using it on older children The device is not intended for patient transport outside a healthcare facility The device is not intended for public use This device...

Page 4: ...essure reaches 40 kPa 300 mmHg the unit will automatically deflate Should the cuff not deflate when pressures reaches 40 kPa 300 mmHg detach the cuff from the wrist and press the START STOP button to...

Page 5: ...an inaccurate measurement Blood pressure monitor is detecting an irregular heartbeat during measurement Irregular heartbeat Blood pressure level indicator Indicate the blood pressure level Heartbeat...

Page 6: ...your local recycling guidelines Install the batteries as indicated in the battery compartment Always use the correct battery type 2 AAA batteries Setting Date Time and Measurement Unit 2 Press MEM bu...

Page 7: ...rtably with legs uncrossed feet flat on the floor back and wrist supported Rest for 5 minutes before measuring Wait at least 3 minutes between measurements This allows your blood circulation to recove...

Page 8: ...ent record Press MEM button or SET button to get the record you want The most recent record 1 is shown first Each new measurement is assigned to the first 1 record All other records are pushed back on...

Page 9: ...ut deleting any records press START STOP button before pressing SET button to confirm any delete commands 2 Press SET button to confirm deleting the LCD will display dEL dOnE and then turn off Tips fo...

Page 10: ...en we recommend you seek medical advice Please note that the device does not replace a cardiac examination but serves to detect pulse irregularities at an early stage The chart on the right is the sta...

Page 11: ...rther assistance Refer to the warranty for contact information and return instructions The measurement process does not detect the pulse signal Loosen the clothing on the wrist and then measure again...

Page 12: ...on Type BF applied part Protection against ingress of water Software version Device classification V01 Internally Powered ME Equipment WARNING No modification of this equipment is allowed Temperature...

Page 13: ...evaluation of medical devices Part 10 Tests for irritation and skin sensitization EN ISO 15223 1 2016 ISO 15223 1 2016 Medical devices Symbols to be used with medical device labels labeling and inform...

Page 14: ...claration electromagnetic immunity IMMUNITY test Not applicable 3 V m Compliance level IEC 60601 TEST LEVEL Conducted RF IEC 61000 4 6 Radiated RF IEC 61000 4 3 3 V m 80 MHz to 2 5 GHz 3 Vrms 150 kHz...

Page 15: ...device as recommended below according to the maximum output power of the communications equipment Rated maximum output power of transmitter W Separation distance according to frequency of transmitter...

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