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Service and utility functions
4-16
10070389 Rev. A
Puritan Bennett™ 700 Series Ventilator System Service Manual
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e
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gain calib: Equalizing the gain of the exhalation and cylinder pressure transducers.
This function lets you calibrate the exhalation and cylinder pressure transducers. It requires a
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kit (P/N G-061557-00).
Battery load test:
This function allows the battery to be tested for at least 20 minutes of
power. It requires a no. 3 inspiration port stopper (P/N G-061575-00). The initial voltage
should be > 24 V.
Message window display
Description
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gain calib
Press ACCEPT to perform this gain equalization.
NOTE:
If you do not wish to perform this gain equalization, do not proceed, but
press CLEAR now. If you press ACCEPT now, the gain equalization cannot be
exited until complete.
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gain calib
Connect syringe
Set up the ventilator, as shown in Figure 4-4. Press ACCEPT to signify you have
finished.
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gain calib
Press to 50+/-5cmH
2
O
Meas press= 0 cmH
2
O
Pressurize the syringe to 50 cmH
2
O, as read in the message window and the LED
bar graph. Press ACCEPT to signify the measured pressure has reached 50 cmH
2
O.
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gain calib
Disconnect syringe
Return the tubing to its normal configuration. Press ACCEPT.
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gain calib
Calibration passed
or
Calibration failed
If the calibration passes, press ACCEPT to return to the
Calibration tests
menu. If
you do not intend to perform any other calibration functions, turn the knob to
access
Exit testing
; otherwise, turn the knob to access another calibration function.
If the calibration fails, try the following corrective actions:
1. If the ventilator displays the message
App press too high
or
App press too low
,
press ACCEPT to return to the
Calib/Other tests
prompt. Rerun equalization.
2. Verify test setup is correct.
3. Rerun equalization.
4. Replace pressure solenoid PCB.
NOTE:
If the ventilator was functioning correctly before service, but the calibration
fails, it is unlikely a PCB is malfunctioning.
5. Replace controller PCB.
Message window display
Description
Battery load test
Press ACCEPT to perform test.
Battery load test
Disconnect AC power
if connected
Disconnect the AC power. Press ACCEPT. Test fails immediately if AC power remains
connected.
Int battery test
or
Ext battery test
Block insp filt port
ACCEPT to proceed
Ventilator determines which battery is supplying power and lights the appropriate
indicator. Block inspiratory filter port. Press ACCEPT to continue.
Summary of Contents for Puritan Bennett 700 Series
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