Service and utility functions
4-8
10070389 Rev. A
Puritan Bennett™ 700 Series Ventilator System Service Manual
4.2.2 EST (Extended self-test)
This function lets you run the full EST. To access EST from the
A. Service menu
prompt, turn
the knob until
EST
is displayed, then press ACCEPT. (You can also access EST from the main
menu.)
For a detailed discussion of ventilator testing, refer to Chapter 3.
4.2.3 Diagnostics/Calib
NOTE:
All service functions can be accessed while the ventilator is not ventilating. When
ventilating, the only function accessible is the
sensor data
function.
This function lets you:
• Configure serial ports A and B (if the Communicatons option is installed), and enable up/
download.
• Run individual EST tests
• Calibrate the oxygen regulator pressure transducer, oxygen sensor, PEEP pump, equalize
the gain of the exhalation pressure transducer/cylinder pressure transducer (P
e
/P
cyl
), run
the battery load test, run the serial ports test, and adjust the oxygen regulator for use at
high or changing altitudes.
• Exit service mode
• Erase the contents of the test log
• Erase the contents of the alert log
• Manually input calibration constants into NVRAM for the oxygen regulator assembly, the
flow sensor, the piston/cylinder assembly, and the pressure solenoid PCB.
• Review calibration constants in NVRAM
• Reset hours of preventive maintenance, battery use, and update serial number.
To access the
Diagnostics/Calib
functions from the
A. Service menu
prompt, turn the knob
until
Diagnostics/Calib
is displayed, then press ACCEPT. Then turn the knob to locate the
desired
Diagnostics/Calib
function.
Table 4-9 tells you when to perform calibrations or update NVRAM constants.
Summary of Contents for Puritan Bennett 700 Series
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