BT-720 Operation manual
P/N:720-ENG-OPM-ENG-R03
Bistos Co., Ltd.
2020.10
32
Standards compliant
IEC 80601-2-30:2009
Measurement method Automatic oscillometric method
Operating mode
Manual, automatic
Useful life
100, 000 times
Measurement interval
in automatic mode
1/2/3/4/5/10/15/30/60/90/120/180/240/480min
Typical measurement
time
20~40s
Normal mode
measuring range
(mmHg)
Adult
Pediatric
Neonate
Systolic blood pressure
40-270
40-200
40-130
Mean blood pressure
20-230
20-175
20-100
Diastolic blood pressure
10-210
10-162
10-90
Measurement
accuracy
Maximum average error: ±5mmHg
Maximum standard deviation: 8mmHg
Resolution
1mmHg
Initial inflation
pressure
Default
Pressure setting range
Adult
160mmHg
140mmHg, 160mmHg, 180mmHg
Pediatric
140mmHg
140mmHg, 160mmHg,
Neonate
100mmHg
100mmHg, 120mmHg,
Overpressure
protection point
(software)
Adult: 300mmHg
Pediatric: 240mmHg
Neonate: 150mmHg
Overpressure
protection point
(hardware)
Adult: 320~330mmHg
Pediatric: 265~275mmHg
Neonate: 160~165mmHg
Static Pressure
accuracy
±3mmHg
Electrical characteristics
Supply voltage
10V~14V DC
Maximum power consumption
3.6w
Quiescent current
50mA
Maximum current during
measurement
180mA
Maximum current during inflation
300mA
14 Common faults and maintenance
The following table shows the common faults on the operation, and the solution.
Faults
Solution
Not power on
Check the battery. If the battery is low, please contact to Bistos.
Blank Screen
Check the screen and screen line.
The system time is not
correct
1.
Set up error, can be reset through the system User
Maintenance menu.
2.
The button battery on main control board is run out, please
contact to Bistos.
No SpO
2
waveform or
value
1.
Is the red light on the finger sensor flashing? If not there might
be poor contact. Check the extension cable and the connector.
2.
Is the patient’s arm under pressure? Never take blood pressure
and SpO2 measurements on the same arm.
3.
Is the environmental temperature too low? Never expose the
