SECTION 5
SERHT50 C1104 5-5
PRESSURE METER CALIBRATION
1. Use the Int. Battery button to scroll to “Meter Cal.”
2. Press the ▲Up control button to select “Meter Cal.” The
Message Displa
y Window will display “Adjust to 0.”
3. Use the ▲Up/▼Down control buttons to adjust the Paw needle
to 0.
4.
Press the Int. Battery button and the Message Display Window
will display “Adjust to 60.”
5. Use the ▲Up/▼Down control buttons to adjust the Paw needle
to 60.
6.
Press the Int. Battery button and the Message Display Window
will display “Verification” and will then cycle the Paw meter
needle to 0, 30, 60 and 90. The needle should be within 4 at
each setting. If it is not, complete step 7 then repeat steps 1-6.
7. Press the Int. Battery button to exit “Verification.” The routine will
exit after reaching 90, and the display will return to “Meter Cal.”
VOLUME FACTOR CALIBRATION
1. Use the Int. Battery button to scroll to “Set Vol Factor.”
2. Press the ▲Up control button. The Message Display Window
will displa
y “Connect Rp50.”
3. Connect an Rp50 parabolic resistor to the patient end of the
exhalation valve and leave the other side of the resistor open to
air. MAKE SURE IT IS NOT BLOCKED IN ANY WAY.
4. Press the Int. Battery button and the system will star
t the motor.
After the motor stops the Message Display Window will display
“Vol Factor=XXX.” Valid numbers are between 80-120. Record
the value on the test sheet.
5. Press the Int. Battery button. Press the ▲Up control button.
6.
Repeat step 4. If the Volume Factor is not within ± 5 of the
previous value and within the range of 80-120, repeat steps 2-6
until two consecutive calibration procedures produce Vol Factor
+
5 of each other and both are between 80 and 120.
7. Press the Int. Battery button to exit the Volume Factor
Calibration.
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