FINAPRES Finometer Model-2 - Waveform Calibration Output

56 Finometer® Model-2 User’s Guide
m alue will be applied to the
air outlet of the Frontend Unit.
T
pressed with 50 mmHg. Each time the
HEIGHT
key
is pressed, the pressure will go down with 50 mmHg. A step will go
i
takes 1
endlessly until the
START/STOP key is pressed.
When the
START/STOP key is pressed at any time, during the steady
pressure check, the system will go back into ready mode and the
conf
When the
MARKER key is pressed, the “Configuration option menu” will
show the next configuration item, being the waveform calibration
5.
er
ct. Its systolic pressure
1295 mV (129.5 mmHg), diastolic is 710 mV (71 mmHg), pulse
ation is started (see Table 4.1,
Finometer Model-2 control key functions how to enter this mode) the
SRC: indicat efined pressure wave form will
appear on nel 1,2 and 4 of
mHg. The presented generated pressure v
he generated pressure output starts at 0 mmHg. Each time
PHYSIOCAL is
, the pressure will go up
n sub steps of 0,25 mmHg each sample time (=5 ms for 200Hz). So it
second to move 50 mmHg during a step. This is repeated
iguration is saved.
output.
4.2 Waveform calibration output
The pressure wave calibration signal is a single, exactly repeating fing
artery pulsation, recorded in a young adult subje
is
interval is 930 ms (exact) and calibrated heart rate is (60 x 1000 / 930)
= 64.5 BPM. For Finometer® Model-2, 1000 mV has to correspond to
100 mmHg. Thus S/D is 129.5/71 mmHg.
When the pressure waveform calibr
following will be displayed:
es the source voltage. The d
the analog BNC output and on output chan
the I/O box.
Physiocal Height (mmHg)
OUTPUT CAL WAVE
SRC: NNNN mV
Systolic Diastolic Mean Rate (bpm)