Service and utility functions
Puritan Bennett™ 700 Series Ventilator System Service Manual
10070389 Rev. A
4-11
4.2.3.2.2 Calib/Other tests
This function lets you perform various subassembly calibrations or calibration checks and run
miscellaneous other tests.
To access the
Calib/Other tests
functions from the
Run tests
prompt, turn the knob until
Calib/Other tests
is displayed, then press ACCEPT. Then turn the knob to locate the desired
Calib/Other tests
function. Upon entry to any of the tests, watch the message display window
for prompting.
NOTE:
The
Calib/Other tests
function is different from the
Update constants
function. Use the
Calib/Other tests
function to perform actual calibrations. Use the
Update constants
function to manually input calibration constants into NVRAM. The applicable repair
procedures tell you which function to use.
O
2
pressure calib: Calibrating the oxygen regulator pressure transducer.
This function lets
you calibrate the oxygen regulator pressure transducer. It requires a pressure measurement
device (for example, the PTS 2000 or RT-200) and an oxygen regulator pressure transducer
calibration tool (use tool P/N 4-079050-00 with the PTS 2000, or G-061541-00 with the
RT-200).
Message window display
Description
O
2
pressure calib
Press ACCEPT to perform this calibration.
NOTE:
If you do not wish to perform this calibration, do not proceed, but press
CLEAR now. If you press ACCEPT now, the calibration cannot be exited until
complete.
O
2
pressure calib
Connect test gauge
Tee in a pressure measurement device, as shown in Figure 4-2. Press ACCEPT to
signify the measurement device is connected.
Warning
To prevent possible injury, do not remove the dust cap from the oxygen
regulator access valve (brass part protruding from the side of the regulator)
when the regulator is pressurized. If the access valve is not tightened, the
valve may fly off when the dust cap is removed.
O
2
pressure calib
Disconnect O
2
supply
Disconnect oxygen supply from ventilator. Press ACCEPT to signify the
disconnection is complete.
O
2
pressure calib
Verify gauge = 0 psi
Verify the pressure is reading zero (that is, no residual pressure), using the external
measurement device. Press ACCEPT to proceed.
O
2
pressure calib
Reconnect O
2
supply
Reconnect oxygen supply to ventilator. Press ACCEPT to signify the connection is
complete.
O
2
pressure calib
Verify gauge > =15psi
This prompt appears if oxygen pressure is below 15 psi. Verify the oxygen supply is
reconnected, then use the external measurement device to verify a pressure
reading of at least 15 psi. Press ACCEPT to proceed.
O
2
pressure calib
Enter reg pressure
30.0 psi 2.067 bar
Turn the knob to enter the reading from the pressure measurement device. Press
ACCEPT to signify the entered value is correct.
Summary of Contents for Puritan Bennett 700 Series
Page 1: ...Service Manual Puritan Bennett 700 Series Ventilator Systems TM...
Page 439: ......
