INSTRUCTION MANUAL
PULSE OXIMETER
MD300I
MD300I
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Fig.3-2 (2). Filled waveform mode Fig.3-2 (3). Line waveform mode
The first figure is pulse column display mode. The second figure is filled waveform mode. The
third figure is line waveform mode indicating SpO
2
% trend.
PR tone modulation: Beeps in sync with the patient’s pulse, even under most challenging
patient motion conditions, except when in the (2) mode.
3.3 Warning
Warning:
Technical warning and physiological warning.
Technical warning:
finger out, probe off, power low and error code.
In the situation that the finger is not inserted correctly or the connection state of the probe is
not good results in failure of measurement, “Finger out” or ”Sensor off” may be displayed on
the normal screen.
When battery power is lower than 2.6±0.1V, the sign
will flicker in its display area.
Replace the batteries as soon as possible.
In the failure state, the oximeter will display error codes, and will automatically power off if
the error code display lasts for more than 30 seconds. For the details and definitions on error,
please refer to chapter 5.3.
Physiological warning:
SpO
2
and PR
If the measured SpO
2
and/or PR value is beyond the default limit, the corresponding value
will flash with audible sound.
By default:
SpO
2
: The upper limit: 100%, The lower limit: 90%
PR: The upper limit: 100bpm, The lower limit: 60bpm
Note:
During the warning is issued, press the functional button, you can silence the alarm for
30 seconds. And press it again, the screen switches between pulse column display mode,
filled waveform mode and line waveform mode.
ALARM PRIORITY:
There are three-level priorities for selection.
High priority: indicates the patient is in the very dangerous situation.
Medium priority: indicates the warnings should be paid attention to.
Low priority: indicates the technical alarm caused by the device itself.
Alarms of the oximeter include technical and physiological alarms. All the three priorities are
divided by built-in module and cannot be changed by user.
Assignment of priority:
Alarm
priority
Event
Display
Audiblesound
High
The SpO
2
is beyond
the limits
The SpO
2
value is
flashing
“Di- Di – Di ----- Di - Di”, “Di-
Di – Di ----- Di - Di” once
circularly every 3 seconds
Medium
The pulse rate is
beyond the limits
The pulse rate
value is flashing
“Di - Di - Di”, once circularly
every 5 seconds
Low
The probe or finger
is not inserted
Finger out
Probe off
“Di”, once circularly every 20
seconds
