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comes with anti-motion technology so that the pulse oximeter can
function even if there is finger movement. However, for best results, try to
keep your finger still during measurement. It is also not advisable to use
this instrument during sports activities as movement may lead to
inaccuracies. Once the reading stabilizes, read the measured values of
oxygen saturation and pulse rate on the OLED screen. The Oximeter will
automatically shut down 10 seconds after you remove your finger.
If you do not insert your finger completely into the chamber
the measurement will be inaccurate.
Replace the batteries when the batteries are low and the
symbol
flickers on the screen.
Schematic Diagram of Display
The following figure shows the information display on the OLED screen
of the Oximeter in normal detection state:
Symbol of oxygen saturation
Measured value of oxygen saturation
Bar graph
Plethysmograph
Measured value of pulse rate
PI
Symbol of pulse rate
Battery power indication
Power-On Key/Function Key Operations
PRESS (<0.5 sec) the power-on/function key to turn on the pulse
oximeter. Once it is turned on, HOLD (>0.5 sec) the power-on/function
key to enter into the menu interface. PRESSING (<0.5 sec) on the
power-on/function key will allow you to to scroll through options while
HOLDING (>0.5 sec) it will select an item. "*" indicates the option you are
currently at (Please see figure below).
Alarm Sound Setting
To turn the alarm on/off, PRESS the power-on key/function key to move
"*" to Alm. HOLD the power-on key/functional key to switch the option
from on to off or vice versa. When Alm is set to on and the measured
values of the blood oxygen saturation (SpO
) and/or pulse rate (PR) go
2
beyond the stated upper or lower limit (See Alarm Range Setting to set
parameters for Alarm), the alarm will go off. When Alm is set to off, the
alarm is deactivated. The alarm will not go off regardless of your SpO
and/or PR values.
Brightness Setting
To change brightness, PRESS the power-on key/function key to move "*"
to brightness. HOLD the power-on key/function key to set the
brightness. There are 5 brightness settings. 5 is the brightest. The factory
default setting is 4. Please note that a brighter setting will drain the
battery faster.
V2.01.E
Alm setup
*
Alm
on
Beep
off
Demo
off
Restore
ok
Brightness
4
Exit
Interface 1
Plethysmograph
The INV-430J/PE comes with two invaluable features, the
plethysmograph and the perfusion index, that help the user determine if
the readings are accurate and reliable. The plethysmograph indicates the
amount of blood flow detected by the pulse oximeter and the perfusion
index (PI) indicates the strength of your pulse. Each wave in the
plethysmograph (see above) corresponds to a heartbeat and the wave
amplitude corresponds to the amount of blood detected by the pulse
oximeter flowing through the blood vessels. The pulse oximeter is
optimized when the height of the wave amplitude is consistent
throughout as shown in the figure above. That is when you should take
the reading. The pulse oximeter can function with a PI reading as low as
0.2. However, if your PI is below 0.2%, this means that your blood
perfusion is too low for a reliable read. Please warm your hands to
increase blood flow and retake your measurement to make sure that your
finger is positioned right under the LED lights. Most of the time, a higher
PI will give you a more reliable reading.
Alarm Range Setting
To change the alarm range settings, HOLD the power-on/function key to
enter Menu Interface 1.With the "*" next to Alm Setup, HOLD the
power-on key/function key to enter in Menu Interface 2. "*" should be at
Sounds Setup. Press the power-on key/function key to move "*" to the
option you desire to change. SpO
upper and lower limit of the SpO
at respectively. PR Alm Hi and PR Alm Lo refer to the upper and lower
2
limit of the Pulse Rate levels that you wish the alarm to go off at
respectively.
While the "*" symbol stays on the +/- option, hold the function key to set
the option to + or -. In + mode, select the corresponding upper or lower
limit option and hold the function key to increase the upper or lower limit;
in - mode, hold the function key to decrease the upper or lower limit.
V2.01.E
Sounds Setup *
SpO
Alm Hi
100
2
SpO
Alm Lo
94
2
PR Alm Hi
130
PR Alm Lo
50
+/-
+
Exit
Interface 2
Plethysmograph
Alm Hi and SpO
Alm Lo refer to the
2
2
levels that you wish the alarm to go off
2
Move "*" to the Exit option, and hold the function key to return to the
monitoring interface.
About the Display
PRESS (<0.5 sec) the function key in measurement mode to change the
display mode. The six different modes are shown in the figure to the right.
Choose the mode that is the most convenient for you.
Cleaning
To clean the instrument, power off and remove the batteries first. Then
clean the outer surface of the instrument (including the LED screen)
using a piece of dry soft cloth dipped with 75% medical alcohol. Do not
immerse the unit in alcohol.
Caution: Do not use any strong dissolving agent such as acetone.
Caution: Do not rub the body of the instrument using materials such as
steel wire balls or polished metal objects.
Caution: Ensure that there is no washing liquid on the surface of the
instrument.
Caution: Do not allow liquid to flow into the instrument during cleaning.
Caution: Do not immerse any part of the instrument into any liquid.
Disinfection
Before measurement with the instrument, wipe the rubber finger pad
inside the chamber using a piece of dry soft cloth dipped with 75%
medical alcohol. Clean the finger to be measured using the medical
alcohol for disinfection purposes before and after use.
Do not disinfect the instrument by using
high-temperature/high-pressure disinfecting gas.
Maintenance
Remove the batteries from the battery slot and properly store them
if you do not plan to use the Oximeter for a long period of time.
Replace the batteries if they are low on power.
Clean the Oximeter and the fingertip before use to ensure
accurate reading.
Store the Oximeter between 14 and 122F (–10 to +50C) and at
humidity levels no greater than 93%.
Periodically check the Oximeter for damage.
Avoid using the Oximeter in an environment with flammable gases
or using it in an environment where the temperature or humidity is
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